thank you for making a guide like this, as someone who's new to the car scene and trying to learn new things, tutorial/info sort of content is very valuable to me.
I’ve been loving the turbo kit on my BRZ for 3 years. The 86 should’ve come this way from the factory, it only improves the car. Of course getting much wider rubber than stock is a mist afterwards. I was on stock wheels/tires for a few months with the turbo and it was pretty sketchy.
Thanks a lot for this video, been debating on buying a solid next to new FRS 2015 with 20 000 km for almost nothing. I'm definitely buying and turning into a monster.
Great video. Very concise and informative. I hope you do other videos about modifying other cars also. Seems like it’s difficult to research information
Not sure how many takes you shot Thomas, but the video was edited extremely well. Kept me interested all the way through! =) Liked and subbed (even though I don't have an 86/brz).
A turbo does use energy from the engine. On the exhaust stroke, the piston has to travel upward, pushing the exhaust gases out. The more restriction the exhaust gases have, the harder the piston has to push to expel the gases. That is taking power from the crank. A turbo increases the resistance the exhaust gases experience, and therefore take more force to expel, and take power from the crank. It just isn't as much power as a supercharger, but a turbo isn't exactly free boost.
I would love to see a video on superchargers. Also, while I realize it only affects a portion of your audience including myself, a list of CARB legal supercharger and turbocharger kits would be awesome.
Awesome explanation not boring and not repetitive also efficient! I clicked subscribe more videos like this and dont change the way you explain things( making it not so complicated)
Just get an aftermarket oil pan. The FA already has issues with oil starvation if you turn right too much. The oil pan is going to be a much bigger issue than the internals in terms of running risks making power.
I am running my stock fuel system. My tuner is pushing 320kw on the wheels(with his car) with the stock fuel system but he is tuning with the direct injection only. The port is used for cold start only. If you want to be safe, upgrade the supply pump but you can get more then enough power on the stock setup.
This is a really great video to get a lot of information quickly. I would love to see a SuperCharger video though, since that is what I am thinking of getting for my car in the future.
I would like a supercharger video. I'm more inclined to get a supercharger since I live in a large city and am more likely to want instant power vs. spooling up. Great video on the Turbos along with all your other videos. Keep them coming. I've started purchasing stuff from you and plan on buying more. Your videos are why I've become a customer.
I have a 2016 Genesis Coupe 3.8 automatic that has 58,000 miles because I drove it to school everyday for over an hour. I think I have owned it for three years now? Unfortunately, I wasted ten years of my life going to school to get a bachelor's degree in the U.S. in December 2018. I did an amazing Summer internship in 2019. Now I have no job and not making any money during coronavirus apocalypse tribulation. For the past few months, I have been learning more about cars and making a parts list for my Genesis Coupe to get it to 440+ wheel power someday. It doesn't look like I will have the money anytime soon. Over a week ago, I start looking into the GT86/BRZ/FR-S. When I see these cars on the road, I usually think, "It's another annoying kid in a brz/frs. Nothing amazing. move on." Which they usually are those kids. But the more research I do and videos I watch, I think I would rather have this car than my Genesis right now. Only if I had extra money for mods. Let me tell you the main reasons. 1. Yes, those are usually annoying kids who drive them, but this car has so much support and modifications that it can be transformed into a car that is beyond what high school and college kids drive. 2. Again, this car has support. All of the support for the Genesis Coupe is very small because the car is no longer manufactured, and the Infiniti Q60 is a better deal than Genesis cars now. The few turbo kits and modifications are very expensive (Remnant Performance being the cheapest and best I would be able to do someday). It is difficult to find anyone in Dallas area who works on Genesis Coupe like the they do with Subaru and the Evo cars, Mustangs, etc. 3. This car is super light and apparently handles well in turns. 4. There are stage 3 built motor blocks that I could have a shop install on this BRZ/86 car, and if I add a turbo kit and ECU and other supporting mods on top of that, I could reach the 440 to 500 whp I hope to experience someday. Not only this, but a car that weights this much and had that much wheel power would smoke some Porsches. I saw a video of a BRZ/86 beating a GT-R (GTR is one of my favorite cars). Of course the GTR was probably not heavily tuned, but the thought of that as a daily driver is what I need.
Pretty decent summation of a turbo guide, except would have like to have seen info on drivetrain upgrades too.. anything over 350 is a good time to upgrade the stock clutch and driveshaft.. AND BRAKES!!!
To me a supercharge has less complexity in terms of invasiveness to the the engine components because most sc kits like jackson and kraftwerks uses it's only oil system and in general yes they have less potential to make crazy power but sc has the immediacy of power and have less heat production. in my opinion the sc is better as a track application.
also , a wastegate will always open when the port on the wastegate "sees" the pressure that the spring is rated at. in order too run a higher boost pressure you have to manipulate what the wastegate "sees". This is what a boost controller does and you dont actually need one with external wastegates at all as you can just swap springs
jess Wastegates aren't off/on valves. They're progressive valves that crack open before the spring pressure is reached. They act as a "brake" of sorts for the turbocharger. They don't exactly open right at spring pressure and remain closed after that. A boost controller, especially an electronic one, aids in decreasing spool time by bypassing the air that would "crack" open the wastegate, and allowing the air in once target boost pressure is reached. While it is true that you can swap out springs to change boost levels, that often isn't practical. Sometimes the wastegate lies in an uncomfortable location. Boost controllers come in several flavors and some you can get for as cheap as 20-25$ on eBay and they work perfectly fine and don't fail after years of use.
I find this video very useful. I am about to buy my brz but I've heard alot about blowning turbo brz engines. You said it would be good to modify valves and fuel pump, etc etc. I have found the auction without such modifications. Full spec is: Turbo FullBlownMotorsports USA installation. Power 300KM. FBM cooler. Oil cooler. Full Nur-Spec Exhaust. Front Alcon 6 piston brakes. Tein suspension with hardness adjustment. Rays Gray Lights Extreme Rims . Toyo R888 tires. it has around 40000 of mileage. Do you think the engine might be a wreck just after this? Is buying an used one a good choice? Especially with turbo installed? Is this setup something worth looking (I am not an mechanic so modding myself would cost me extra $, here everything is set up). How can I check engine before a transaction?
Nice Video as always, but would be great to take some time to decipher all the options you have on your site. Also, add me in for the supercharger videos.... I would like to see something where you explain the various SC kits FT-86 sells...Which ones are more plug and play (all parts included)? ... and which ones need more attention (tune + other parts) and maybe even horsepower ranges... What is the simplest way to make ~200-250whp (safe on stock compression)?
If you can, can you can make a video on how to modify the stock engine to rev to 12,000 RPM (naturally aspirated) like the AE86 in Initial D, driven by Takumi Fujiwara? Happy if the modifications can deliver 200 horsepower at the wheels.
My FRS almost killed me with this issue , Toyota really needs to issue a recall due to this problem. The clutch fork and throw out bearing are incredibly weak and not properly lubricated from the factory. I have a video on my channel explaining this more.
I would recommend against boosting with an auto transmission. They are alot more complicated which means alot more can go wrong/more chances of something breaking. Manuals are much much more simple and more rugged. There's a reason you never see boosted autos lol
Question, compression ratio stated in video is 12.5:1, last I checked my 2013 FRS is 11:1. Was there an update to the pistons/combustion chambers in the 17+ models?
Excellent video, not planning on boosting but would like to see a supercharger vid. As crazy as it sounds I've considered an intercooled na build after doing more work to reduce underhood temps.
Edwin Craig not to sound like one of those know-it-all’s or anything like that, but I don’t see why anyone would do that. That’s practically unheard of because it would only obstruct the flow of air into the engine and add more bends, thus requiring a huge length of intake piping. I’m probably trading my FRS at the end of the year for an S2000, but if I were to build something NA for the track, I’d consider things like hood vents/brake ducts and oil coolers as well as an upgraded radiator to help cool the engine under prolonged pressure and heat. Maybe a transmission cooler as well, but at least an oil cooler and an upgraded radiator. If searching for NA power, Intake/Header/Exhaust and a tune is gonna provide the most gains (mostly Header and tune), anything else like those billet power blocks and whatnot will add marginal power that won’t even be noticed.
Marcos Diaz I agree with what you are saying, mine is used as a daily driver and occasional fun on twisty roads. I considered autocross but not close enough to me. The air here in Louisiana is humid and oxygen rich, we don't have desert temperatures but it gets quite hot here. That said I would be doing it to reduce intake temperatures to increase volumetric efficiency, mostly for gas mileage purposes as I drive 60 miles one way to work. It's an expensive modification for potentially very little gain but it has crossed my mind. I got the idea from the guys intercooling na motors packed with dry ice on the Bonneville salt flats trying to make times by freezing the air in the intake before it got to the motor. Who knows, if I did it and I felt froggy I could put a nitrous ring in front of the intercooler to do the same thing in a neck and neck race to slightly pull at the finish. It's all an expensive daydream but I have had the thought. Just throwing it out there to gauge reaction or see if it's been done yet.
![Seungmin "그렇게, 천천히, 우리(As we are)" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/kAzmhLHePqU/mqdefault.jpg)
We do want a supercharger video lmao
LivingKV agreed.
Impede to the 🏪 for us all I have
pretty much the same with turbo but much simple
thank you for making a guide like this, as someone who's new to the car scene and trying to learn new things, tutorial/info sort of content is very valuable to me.
One of the best overall videos on Turbo charger systems I watch recently.
Directly to the point and not 1+ hour. Thanks
super grateful for this channel's communication skills. it's so hard to find videos about this stuff without 20 minutes of useless monologue
Yes do supercharger too!
Supercharger video please!
Yup supercharger video
super charger video please and thank you :)
Supercharger video
I’ve been loving the turbo kit on my BRZ for 3 years. The 86 should’ve come this way from the factory, it only improves the car. Of course getting much wider rubber than stock is a mist afterwards. I was on stock wheels/tires for a few months with the turbo and it was pretty sketchy.
@mysticstrider You could also have a go at installing yourself with a friend or two, then taking it to a shop to get tuned.
Supercharger video please
This guy knows exactly what I need to know about 86.
Saved this video ! Will help me prepare before I turbo my FRS
Thanks a lot for this video, been debating on buying a solid next to new FRS 2015 with 20 000 km for almost nothing. I'm definitely buying and turning into a monster.
Supercharger vid please
We want Natural aspirated Max power video!!!!!
your looking around 400 ish hp but youd end up dumping around 7-12k into your engine
@@budderswag seriously? What would that take? Forged internals, Higher comp pistons, Bored, de-stroked, header, straight pipe, 9500 redline, rad upgrade, oil cooler, ecu?
@@najirban all of that + bigger valves. Any engine that you want to make NA power will cost lot of money.
But but but... stutututut
@@budderswag there is no way u could reach 400 na especially with consumer parts . Dont push the bs on the web if you don't have build to back it up.
Great video. Very concise and informative. I hope you do other videos about modifying other cars also. Seems like it’s difficult to research information
it's kevin from subispeed
Just his hands......
stalker!
( ͡° ͜ʖ ͡°)
Not sure how many takes you shot Thomas, but the video was edited extremely well. Kept me interested all the way through! =)
Liked and subbed (even though I don't have an 86/brz).
Thanks for the video, very informative and well thought out! Keep up the awesome informative videos, love your site!
Yes please! Also some pro and cons between each hahaha, keep it up!
A turbo does use energy from the engine. On the exhaust stroke, the piston has to travel upward, pushing the exhaust gases out. The more restriction the exhaust gases have, the harder the piston has to push to expel the gases. That is taking power from the crank. A turbo increases the resistance the exhaust gases experience, and therefore take more force to expel, and take power from the crank.
It just isn't as much power as a supercharger, but a turbo isn't exactly free boost.
Am i the only one who reads Ecutek like "E-C-U Tech?"
Not at all. I’ve made this mistake with them as well as GReddy, which I always pronounced as “G-Ready” 😂
Matthew Novak no you not, I do to
@@metallicaspiker16 dude, i thought that's how you're supposed pronounced it the entire time, thx bro
"Everything you need to know before you turbo your frs/brz/86"
You'll blow through transmissions faster then the advertised 0-60 times.
Not really. Put a good clutch. The motor will go before the transmission
Synchros in these are super unhappy.
I want to daily drive for 300k plus on original motor this power any suggestions?
@@surferman911 lambo
@@vicentesulbaran307 won't last
I would love to see a video on superchargers. Also, while I realize it only affects a portion of your audience including myself, a list of CARB legal supercharger and turbocharger kits would be awesome.
Here's a couple carb cert kits
Works Stage 1 Turbo Kit - www.ft86speedfactory.com/works-stage-1-simple-turbo-kit-tuned-carb-compliant-2013-ft86-mt.html#.WtX6EYjwYkk
Kraftwerks Supercharger Kit - www.ft86speedfactory.com/kraftwerks-supercharger-carb-exempt-system-with-tuning-2013-ft86.html#.WtX6NYjwYkk
Thank you! That turbo kit is super interesting too. Simple and different approach.
Awesome explanation not boring and not repetitive also efficient! I clicked subscribe more videos like this and dont change the way you explain things( making it not so complicated)
Just get an aftermarket oil pan. The FA already has issues with oil starvation if you turn right too much. The oil pan is going to be a much bigger issue than the internals in terms of running risks making power.
Super charger video and maybe a recommendation for twin charged set ups. Yes I'm crazy...but I want it.
Definitely make a supercharger video
really love these videos man, keep it up!
I am running my stock fuel system. My tuner is pushing 320kw on the wheels(with his car) with the stock fuel system but he is tuning with the direct injection only. The port is used for cold start only. If you want to be safe, upgrade the supply pump but you can get more then enough power on the stock setup.
Also... Delicious Tuning ftw. Absolutely superb tuner!
This is a really great video to get a lot of information quickly. I would love to see a SuperCharger video though, since that is what I am thinking of getting for my car in the future.
Great video dude ! Learned a lot about turbos. Please do a supercharged version !
I would like a supercharger video. I'm more inclined to get a supercharger since I live in a large city and am more likely to want instant power vs. spooling up. Great video on the Turbos along with all your other videos. Keep them coming. I've started purchasing stuff from you and plan on buying more. Your videos are why I've become a customer.
Nicely explained without all the B.S. Well done.
I have a 2016 Genesis Coupe 3.8 automatic that has 58,000 miles because I drove it to school everyday for over an hour. I think I have owned it for three years now? Unfortunately, I wasted ten years of my life going to school to get a bachelor's degree in the U.S. in December 2018. I did an amazing Summer internship in 2019. Now I have no job and not making any money during coronavirus apocalypse tribulation. For the past few months, I have been learning more about cars and making a parts list for my Genesis Coupe to get it to 440+ wheel power someday. It doesn't look like I will have the money anytime soon. Over a week ago, I start looking into the GT86/BRZ/FR-S. When I see these cars on the road, I usually think, "It's another annoying kid in a brz/frs. Nothing amazing. move on." Which they usually are those kids. But the more research I do and videos I watch, I think I would rather have this car than my Genesis right now. Only if I had extra money for mods. Let me tell you the main reasons. 1. Yes, those are usually annoying kids who drive them, but this car has so much support and modifications that it can be transformed into a car that is beyond what high school and college kids drive. 2. Again, this car has support. All of the support for the Genesis Coupe is very small because the car is no longer manufactured, and the Infiniti Q60 is a better deal than Genesis cars now. The few turbo kits and modifications are very expensive (Remnant Performance being the cheapest and best I would be able to do someday). It is difficult to find anyone in Dallas area who works on Genesis Coupe like the they do with Subaru and the Evo cars, Mustangs, etc. 3. This car is super light and apparently handles well in turns. 4. There are stage 3 built motor blocks that I could have a shop install on this BRZ/86 car, and if I add a turbo kit and ECU and other supporting mods on top of that, I could reach the 440 to 500 whp I hope to experience someday. Not only this, but a car that weights this much and had that much wheel power would smoke some Porsches. I saw a video of a BRZ/86 beating a GT-R (GTR is one of my favorite cars). Of course the GTR was probably not heavily tuned, but the thought of that as a daily driver is what I need.
Do a bolt on guide!
Exciting to hear more on Supercharger video as well, thanks!
Yes supercharger video would be amazing!
Definitely do a supercharger video. Great video as always guys
Supercharger video please. I want to go turbo, but it's not CARB legal here in CA.
KarantsTV works Motorsport turbo is CARB legal
theres already a couple legal turbo kits
Pretty decent summation of a turbo guide, except would have like to have seen info on drivetrain upgrades too.. anything over 350 is a good time to upgrade the stock clutch and driveshaft.. AND BRAKES!!!
a supercharger video would be good, so that people will know which to choose and understand more about supercharger
A supercharger video would be perfect. Keep up the good work!
Supercharge me Scotty!
they said HEY SCOTYYYYY
Super charger video? Yes please!
Thanks for putting out this video! Please do more videos on boost!
To me a supercharge has less complexity in terms of invasiveness to the the engine components because most sc kits like jackson and kraftwerks uses it's only oil system and in general yes they have less potential to make crazy power but sc has the immediacy of power and have less heat production. in my opinion the sc is better as a track application.
Depends on your track/power goals though right?
We need a supercharger video bro!
That red and black gt86 in the video is clean.
yes we all want a supercharger video i think im speaking for 99% of the brz, 86 community
i want that 86 shirt.
Yes please been wanting sc my frs for a long time
Can't wait to boost mine! Just need to find some deeper pockets! Ha
Ball bearing doesn't "flow more air", they just spin easier, leading to earlier boost compared to journal.
also , a wastegate will always open when the port on the wastegate "sees" the pressure that the spring is rated at. in order too run a higher boost pressure you have to manipulate what the wastegate "sees". This is what a boost controller does and you dont actually need one with external wastegates at all as you can just swap springs
jess Wastegates aren't off/on valves. They're progressive valves that crack open before the spring pressure is reached. They act as a "brake" of sorts for the turbocharger. They don't exactly open right at spring pressure and remain closed after that. A boost controller, especially an electronic one, aids in decreasing spool time by bypassing the air that would "crack" open the wastegate, and allowing the air in once target boost pressure is reached.
While it is true that you can swap out springs to change boost levels, that often isn't practical. Sometimes the wastegate lies in an uncomfortable location. Boost controllers come in several flavors and some you can get for as cheap as 20-25$ on eBay and they work perfectly fine and don't fail after years of use.
This is a really help full video, but i want also an supercharger video + a bolt on guid will be really nice. Thank you and keep up going!! 👍😀
I find this video very useful.
I am about to buy my brz but I've heard alot about blowning turbo brz engines. You said it would be good to modify valves and fuel pump, etc etc. I have found the auction without such modifications. Full spec is: Turbo FullBlownMotorsports USA installation. Power 300KM. FBM cooler. Oil cooler. Full Nur-Spec Exhaust. Front Alcon 6 piston brakes. Tein suspension with hardness adjustment. Rays Gray Lights Extreme Rims . Toyo R888 tires.
it has around 40000 of mileage. Do you think the engine might be a wreck just after this?
Is buying an used one a good choice? Especially with turbo installed?
Is this setup something worth looking (I am not an mechanic so modding myself would cost me extra $, here everything is set up).
How can I check engine before a transaction?
350wheel? I'd be happy with 240whp!
Please make a video on superchargers, and a video to directly compare the two for the FA20 motor.
I would really enjoy a supercharger video for the 86.
With twin scroll turbos lag is almost a thing of the past. My newer Subaru comes on boost at like 1500 RPM.
Exactly right. Newer small turbos have almost zero lag.
Video on super charges and one on the pros and cons of going either way would be nice
Let's see that supercharger video.
Nice Video as always, but would be great to take some time to decipher all the options you have on your site. Also, add me in for the supercharger videos.... I would like to see something where you explain the various SC kits FT-86 sells...Which ones are more plug and play (all parts included)? ... and which ones need more attention (tune + other parts) and maybe even horsepower ranges... What is the simplest way to make ~200-250whp (safe on stock compression)?
I elected to go with the Jackson Racing supercharger kit. I love having the instant boost.
How did that go?
Yep. Supercharger video... I'm leaning towards the Jackson Racing kit myself...
All forced induction videos are very appreciated.
I'm getting an Asian Engineering Explained vibe from this guy
can you guys do a video on what to look for when buying a used BRZ?
If you can, can you can make a video on how to modify the stock engine to rev to 12,000 RPM (naturally aspirated) like the AE86 in Initial D, driven by Takumi Fujiwara? Happy if the modifications can deliver 200 horsepower at the wheels.
Supercharger video for sure!
supercharger video!!
Yes please do one on Superchargers. Sprintex please
Just twincharge, that’ll eliminate the lag 😉
The Dudeprime lol right 😂👍
To be more specific a sequential set up yeah lol
My FRS almost killed me with this issue , Toyota really needs to issue a recall due to this problem. The clutch fork and throw out bearing are incredibly weak and not properly lubricated from the factory. I have a video on my channel explaining this more.
Awesome video 👌
Supercharger please, and nice video about turbo
Yes We Do Want That In The Comments Down Below....Yes Please Do Make A Video About Super Charging Your GT86.....PLEASE
How much power can an auto BRZ transmission handle and will it easily overheat?
I would recommend against boosting with an auto transmission. They are alot more complicated which means alot more can go wrong/more chances of something breaking. Manuals are much much more simple and more rugged. There's a reason you never see boosted autos lol
428WHP/331WTQ P&L motordports
Sporkinstien the only boosted autos are manufactured ones lol, anyone working on a car would buy and learn a manual because $$$
bruhh the last few seconds of the video lmaoooo 😂😂😂🔥🔥🔥...love this channel
SUPERCHARGER TUTORIAL!! 😀
A supercharger video would be great! I'm eyeballing the edelbrock for mine.
If I turbo my car how much of a fuel efficiency decrease do I except to see
Nice SKX009 ;) I have the same one!
HARROP = From Australia = supercharged inlet manifold = 500 hp !
If this video was audio only youd think that Owen Wilson was talking. Can you say wow in your next vid?
lol. Sure.
Yes! Supercharger video please!
For 5k idk 60 horse power doesn’t buy me
I will probably only do the headers and a stage 2 tune with opentablet
Thanks for the info! Can you do a super charger video?
Toyota needs to come out with a turbo version of the 86
What kind of nose/splitter is on the FRS/86/BRZ behind him? Looks like it has brake ducts too. Very nice :)
You should do a 2step for the brz
Please do the supercharger video!!!! I have a 2017 BRZ and I want to supercharge it!
about how much will everything cost you
At least £5k for a basic set up, for what he’s talking about it’ll be 7+
So question what is in the place of the a/c compressor on one of the turbo frs that was shown ? Looks like some sort of oil pump
I’d like to see the Supercharger counterpart video to this please. Thank you.
Damn I want an FRS so badly. I've done so much work on my truck though I'd have no money to upgrade an FRS anyways 😥
Get a 370z alot more fun
With a bigger fuel pump and injectors would you have to refill your fuel more often
Question, compression ratio stated in video is 12.5:1, last I checked my 2013 FRS is 11:1. Was there an update to the pistons/combustion chambers in the 17+ models?
Edwin Craig 12.5:1 was on all years
Marcos Diaz Thanks for the clarification, was told it was 11:1 initially, haven't had a reason to look it up since.
Excellent video, not planning on boosting but would like to see a supercharger vid. As crazy as it sounds I've considered an intercooled na build after doing more work to reduce underhood temps.
Edwin Craig not to sound like one of those know-it-all’s or anything like that, but I don’t see why anyone would do that. That’s practically unheard of because it would only obstruct the flow of air into the engine and add more bends, thus requiring a huge length of intake piping. I’m probably trading my FRS at the end of the year for an S2000, but if I were to build something NA for the track, I’d consider things like hood vents/brake ducts and oil coolers as well as an upgraded radiator to help cool the engine under prolonged pressure and heat. Maybe a transmission cooler as well, but at least an oil cooler and an upgraded radiator. If searching for NA power, Intake/Header/Exhaust and a tune is gonna provide the most gains (mostly Header and tune), anything else like those billet power blocks and whatnot will add marginal power that won’t even be noticed.
Marcos Diaz I agree with what you are saying, mine is used as a daily driver and occasional fun on twisty roads. I considered autocross but not close enough to me. The air here in Louisiana is humid and oxygen rich, we don't have desert temperatures but it gets quite hot here. That said I would be doing it to reduce intake temperatures to increase volumetric efficiency, mostly for gas mileage purposes as I drive 60 miles one way to work. It's an expensive modification for potentially very little gain but it has crossed my mind. I got the idea from the guys intercooling na motors packed with dry ice on the Bonneville salt flats trying to make times by freezing the air in the intake before it got to the motor. Who knows, if I did it and I felt froggy I could put a nitrous ring in front of the intercooler to do the same thing in a neck and neck race to slightly pull at the finish. It's all an expensive daydream but I have had the thought. Just throwing it out there to gauge reaction or see if it's been done yet.