I just got my car tuned yesterday with the same turbo as you guys same rear housing aswell, with the same engine, EJ207 built with cosworth S2 cams. Made 364AWHP and 432nm at 1.5 bar of boost tapering to 1.4 bar at redline on a Mainline Dyno with 95RON fuel. Im very happy with the response compared to the GT3076R that was on the car previously. Cant wait to see how much of a difference the bigger .92 turbine changes the graph. Good luck Speed Academy. Greetings from Indonesia.
Wait.. u guys were running jdm ej207 on usdm ecu right? U guys really need to open up avcs map and copy the jdm ej207 evcs map into the ecu...and at high rpm pull the avcs back to 0 degree advance..
A good starting point for IMAP vs EMAP is 1:1.5....I run a Blouch Dom 3 with 10cm housing still internally gated. But we modified the rear housing to bring EMAP down. We were seeing 1:2.4 before modifying housing. Now it’s 1:1.5 and that’s with 9:1 Comp as well.
yah the .72 housing is prolly better suited engines in the 1.6 to 2.0L (fiesta st would rock). The bigger .92 housing may still not be enough and garrets upcoming g30 turbo lineup may be required to keep the refreshed heads flowing
Josh H. I don’t think housing size matters much on engine displacement, Tomioka racing turbo for the golf r is a 10 cm .73ar housing and makes 675hp and the turbo itself is even smaller than the g25, I think it’s all about flow and efficiency of the turbo itself that matters
You can hear that something is wrong even at the start of measuring, so I see no point to continuing in measuring until rev limiter... You have a big luck that you have enough clearance between pistons and valves. Valve float is a ticket for a complete engine disassembly and replacing valves and guides.
I’m guessing you’re not running more than 6-8 psi of boost so even if the pressure ratio something bad like three you still have half the back pressure they’re seeing
15psi, I definitely on the edge of efficiency, but I have a larger .6x that is external gate, will be interesting to see if it’s worth any high rpm power. I agree they must have some intense pressure in there...
13,000 miles, most at around 9-10psi, did crack the chra on my first turbo, cold two step lol. I got some rods on the shelf but really just tuned it myself conservative and haven’t had any issues. Would love to see how it would drive with a nice ball bearing turbo
I had an 05 forester XT and I'm gonna be honest.. I dont miss all this complicated crap. I'm loving the n/a life. I would love to boost my 08 350z, but I'm doing all n/a mods before that. Cams, fuel, air and exhaust.
i run the 660, .92 ar on my 06 sti. stock heads. made 460 hp at all four wheels on e85 at 26psi. same issue as here, the housing is choking and getting valve float. will be throwing some 272 cams, light port job, and stronger springs in there to hopefully squeeze some more out of the turbo. holy shit, the spool on the thing is crazy.
You might also seal the flex joint on the tomei exhaust manifold. I have an equal length header with a turbo installed on frs. what we noticed that tomei had an exhaust leak on the flex joint. I welded that joint and made more whp.
Not to knock the guy remote tuning but it just seems a lot more efficient and accurate to have someone properly there tuning the car there’s good tuners for these chassis in the area such as Definitive Tuning (Justin) and OnPoint Dyno (Sasha) who could really do a great job tuning this car
No knocking at all, we had every intention of using OnPoint but after Cobb came on as a sponsor on the build and talking to Mike we thought it would be a great idea to do a remote tune since he knows the Cobb Tuning software so well and we havent ever done a remote tune. So far its been really great.
COBB's the problem here. If you were running Tactrix cable, Evoscan (yes it works with Subies) and EcuFlash , the tuning process would be a lot more rewarding with your current setup. I learned this myself the hardway.
Adam LZ is making like 450 on his G25-550 (the cream 240) and chris forsberg has a pair of 660's on his pro car making a thousand. It should be perfect for the power level with the right housing
@@snape1464 still not a good turbo for me. With a small turbine housing 25mm even if you put a bigger housing you'll still need to push the turbo to about 40psi to make 450whp making the reliability questionable. Compare that to a true big turbo, at 25-30 psi makes already the same even more power and still has more room for future power and the turbo isn't pushed to its limits.
I was going to say the same. Waste gate was all over the place, maybe a bad spring? It should have leveled out but it kept fluttering the entire pull. Maybe its designed that way? Just seems like pulsing like that would keep the engine from a smooth flow and even boost pressure.
i have a GT3582R i will be putting on a 2.4L engine in the future. i was hearing rumors that it would take a while to spool. i wonder how that .91 housing will act spool wise.
While it totally makes sense for Speed Academy from the standpoint of producing quality content for the channel, I will never understand why normal people put so much time and money into a motor (and chassis) that is so inherently flawed. I know people who have had fully built motors from pro shops spin a bearing in the first 5,000 miles. A stock LS3 makes as much power as they just made, and a cammed LS3 would make as much as that motor with the bigger housing.
yeah i feel you man, that's why i've always stayed away from anything with a flat engine. my gf and i both really like the GT86 platform but i refuse to dump money into that motor
@@figu26 No engine platform is perfect; but the reliability of an EJ engine is far below average even in fully stock trim. It's just a fool's errand unless there are other motivating factors like NV attracting more business or SA adding variety to the channel.
@@VS666 if you found one of the many with a blown motor and dropped an LSX, K20, or VQ35HR in, you'd have an amazing set up. It just depends on your preference of engine character.
@@heyhayhay247 And yet at this very moment, hundreds, if not thousands of over 200,000 mile Subies are bombing around the country doing daily tasks. A 10 year old Subie is often in better condition than a 5 year old NA built rust magnet. Any LS is a great platform, yupp. But this vid is about tuning a EJ207
I just got my car tuned yesterday with the same turbo as you guys same rear housing aswell, with the same engine, EJ207 built with cosworth S2 cams. Made 364AWHP and 432nm at 1.5 bar of boost tapering to 1.4 bar at redline on a Mainline Dyno with 95RON fuel. Im very happy with the response compared to the GT3076R that was on the car previously. Cant wait to see how much of a difference the bigger .92 turbine changes the graph. Good luck Speed Academy. Greetings from Indonesia.
At least it's a good representation of how housing size matters... Sad but true, size matters after all ;-)
Exactly not much surprise here
Wait.. u guys were running jdm ej207 on usdm ecu right? U guys really need to open up avcs map and copy the jdm ej207 evcs map into the ecu...and at high rpm pull the avcs back to 0 degree advance..
A good starting point for IMAP vs EMAP is 1:1.5....I run a Blouch Dom 3 with 10cm housing still internally gated. But we modified the rear housing to bring EMAP down. We were seeing 1:2.4 before modifying housing. Now it’s 1:1.5 and that’s with 9:1 Comp as well.
Maybe not the content flow you guys were hoping for, but amazing info and explanation regardless.
yah the .72 housing is prolly better suited engines in the 1.6 to 2.0L (fiesta st would rock). The bigger .92 housing may still not be enough and garrets upcoming g30 turbo lineup may be required to keep the refreshed heads flowing
Theres TT v6s with g25-660s making 1000 and as the name states with the proper housing size it can make up to 660~
Josh H. I don’t think housing size matters much on engine displacement, Tomioka racing turbo for the golf r is a 10 cm .73ar housing and makes 675hp and the turbo itself is even smaller than the g25, I think it’s all about flow and efficiency of the turbo itself that matters
Love these videos. I'm so glad I found you guys.
You can hear that something is wrong even at the start of measuring, so I see no point to continuing in measuring until rev limiter... You have a big luck that you have enough clearance between pistons and valves. Valve float is a ticket for a complete engine disassembly and replacing valves and guides.
Possibly you're not used to the sound of an external wastegate dumping to atmosphere?
Running a T3 Chinese turbo on my Miata, .48 housing, love the instant boost
I’m guessing you’re not running more than 6-8 psi of boost so even if the pressure ratio something bad like three you still have half the back pressure they’re seeing
15psi, I definitely on the edge of efficiency, but I have a larger .6x that is external gate, will be interesting to see if it’s worth any high rpm power. I agree they must have some intense pressure in there...
Jeffrey Lyons Jesus I assumed with the cheap turbo the engine wasn’t built, or is it not and you just don’t plan on longevity lol
13,000 miles, most at around 9-10psi, did crack the chra on my first turbo, cold two step lol. I got some rods on the shelf but really just tuned it myself conservative and haven’t had any issues. Would love to see how it would drive with a nice ball bearing turbo
Shout out to mike from Rochester! Wish you still had a shop here. I’ve heard nothing but good things from everyone you tuned here.
I had an 05 forester XT and I'm gonna be honest.. I dont miss all this complicated crap. I'm loving the n/a life. I would love to boost my 08 350z, but I'm doing all n/a mods before that. Cams, fuel, air and exhaust.
I truly enjoy the videos you guys produce.
i run the 660, .92 ar on my 06 sti. stock heads. made 460 hp at all four wheels on e85 at 26psi. same issue as here, the housing is choking and getting valve float. will be throwing some 272 cams, light port job, and stronger springs in there to hopefully squeeze some more out of the turbo. holy shit, the spool on the thing is crazy.
You might also seal the flex joint on the tomei exhaust manifold. I have an equal length header with a turbo installed on frs. what we noticed that tomei had an exhaust leak on the flex joint. I welded that joint and made more whp.
Not to knock the guy remote tuning but it just seems a lot more efficient and accurate to have someone properly there tuning the car there’s good tuners for these chassis in the area such as Definitive Tuning (Justin) and OnPoint Dyno (Sasha) who could really do a great job tuning this car
No knocking at all, we had every intention of using OnPoint but after Cobb came on as a sponsor on the build and talking to Mike we thought it would be a great idea to do a remote tune since he knows the Cobb Tuning software so well and we havent ever done a remote tune. So far its been really great.
Learn something new everyday! Thanks for these videos mate!
cant wait till the next video!
Well have to put a bigger exhaust housing to get to the power your looking for.
The drop off in power above 7500 was the same shape in both pulls?
Might be a lil low but it's such An awesome car!
Keep at it dudes, loving the videos.
Any chance of an exhaust pressure gauge being fitted? It'd be interesting to see some actual numbers for intake & exhaust pressure vs engine speed
mantis is a great shop, look at all those sweet 944s in the back!!
From the title I would not watch this UNLESS its speed academy
lets get it boys!!! cant wait
COBB's the problem here. If you were running Tactrix cable, Evoscan (yes it works with Subies) and EcuFlash , the tuning process would be a lot more rewarding with your current setup. I learned this myself the hardway.
What's wrong with cobb?
Lol wrong..
@@leotam3372go buy one, pay for pro tunes and then come back and let us know how much you spent chancing a good tune that didn't overboost or knock.
And that’s on a dynapack which read super high
Feels like they're cheating on Sasha!
He's a busy guy :-)
can't waittttttttt ... new mods for my 16 hyper blue Sti
I'm using an .82 t3 on an s257sxe and made over 500whp with a very linear powerband.... I cant see how a 72 would fall on its face.
G25-660 is a small turbo. It's meant for 1.4L engine like Focus ST. My suggestion, get a GT30-35 size and you'll be rocking.
Adam LZ is making like 450 on his G25-550 (the cream 240) and chris forsberg has a pair of 660's on his pro car making a thousand. It should be perfect for the power level with the right housing
@@snape1464 still not a good turbo for me. With a small turbine housing 25mm even if you put a bigger housing you'll still need to push the turbo to about 40psi to make 450whp making the reliability questionable. Compare that to a true big turbo, at 25-30 psi makes already the same even more power and still has more room for future power and the turbo isn't pushed to its limits.
@@BlueHoodie74 That's the trade off for the faster spool I suppose. I assume you're talking about the mk5 GTI with 2.0 TFSI?
jonray74 lol no it’s good up to 3.0L
Swap that thing and make it happen 🤘🏻
The answer is always LS!
Boywonderr71 he meant swap the turbo. No one cares for an ls sti
abortioncritical many reasons not to. Its not a drift car. Weight distribution most importantly
@@iDayVids exactly that!
my buddy's evo 9 just made 550 on this turbo with e85. interesting how different the sti is.
E85 cant be compared to pump gas though. This setup on e85 will make 500whp+. Sadly we dont have e85 readily available otherwise wed be running it.
This over the phone tuning is no good, take it to a tuner
Sounded a bit fluttery in the first pull
That's just the wastegate
that was just Pete's stomach you were hearing ;)
@@speedacademydave hahahahaha
PT has to get his stuff sorted out
@@altimatic2183 the dude has way too much fiber in his diet :P
I was going to say the same. Waste gate was all over the place, maybe a bad spring? It should have leveled out but it kept fluttering the entire pull. Maybe its designed that way? Just seems like pulsing like that would keep the engine from a smooth flow and even boost pressure.
i have a GT3582R i will be putting on a 2.4L engine in the future. i was hearing rumors that it would take a while to spool. i wonder how that .91 housing will act spool wise.
lag for days.
@@steezosaurusrex dang foreal? why is that turbo so laggy?
Eager to see that .92 housing vid
Something must be up with this a leak or the smaller turbo or the usdm ecu maybe something weird the roll off was exactly the same
U migh need injector or high pressure fule pump and low pressure fule pump
Hi all.for 2000cc tfsi ( audi s3 8p) car which use is for every day and some times for track race is better 72ar or 92ar??
Cant wait to see the update!! Or sell it and get a evo 😂😂😂 great video guys!
Shows how you need to dyno and experiment if the mods aren't being directly copied from an engineered mod.
And i think i won the guessing game with 380whp in picture post back then... 😘
Wow, that was just short of disappointing. Beautiful shop, top of the line parts and stock STI HP. C'mon, let this thing eat.
nice 993 on the lift behind :-)
Cobb, these guys are in Austin Tx really close to my shop.
Just waiting for it to blow up now
Time to get the cars to competitive events
Turbo life.
Time for k24 turbo life?
Kohen J for me I more of an all motor itb guy
Should have had Chris at Touge Tunning build u an STI motor. LOL.
...but it is an STI motor? A JDM one.
What street fuel octane are u using ??
Is that a garret 660 or 550?? Good work 👍
cant wait!
You guys should link your sponsor 🙂
Haha had lunch with Mike not too long ago.
Holy shit I thought it was Salomondrin working part time as a tuner 😂
Nice!!
At least it hasn't blown up yet like Subaru's normally do!
Even with a .72 ar it should make more power wtf
That's about 450 crank hp, not bad tbh
nobody cares about how much you make before taxes haha
I spy a Porsche 968 in the background!
maybe you should kswap an Evo or Subaru and really make them good and reliable plus make big dyno numbers.
Size doesn't matter !! Oh wait....
Subaru's break if tuned too much. Leave it stock ish
Mat S it’s a fully built engine...
Called it lol
Get rid of the front mount all they do is cause boost lag on stock turbos go back to top mount
It's not a stock turbo
@@kevinlogan2306 what turbo are they running?
Oddu guddu
Guys it's my daily driver just get over it 😂 #dreambuild
Please do an evo9 pleasee
ACID WAK they did an evo 8/9 a while ago, pretty sure they sold it like a year or 2 ago.
where is the turbo 240 kswap instead of these garbage engines.
K24 swap ;)
First
Brian Ang gay
He said orifice.
While it totally makes sense for Speed Academy from the standpoint of producing quality content for the channel, I will never understand why normal people put so much time and money into a motor (and chassis) that is so inherently flawed. I know people who have had fully built motors from pro shops spin a bearing in the first 5,000 miles. A stock LS3 makes as much power as they just made, and a cammed LS3 would make as much as that motor with the bigger housing.
I have seen Ls motors blow up as well to. I guess it’s just what you like. The abandon sti doesn’t represent all sti’s out there.
yeah i feel you man, that's why i've always stayed away from anything with a flat engine. my gf and i both really like the GT86 platform but i refuse to dump money into that motor
@@figu26 No engine platform is perfect; but the reliability of an EJ engine is far below average even in fully stock trim. It's just a fool's errand unless there are other motivating factors like NV attracting more business or SA adding variety to the channel.
@@VS666 if you found one of the many with a blown motor and dropped an LSX, K20, or VQ35HR in, you'd have an amazing set up. It just depends on your preference of engine character.
@@heyhayhay247 And yet at this very moment, hundreds, if not thousands of over 200,000 mile Subies are bombing around the country doing daily tasks. A 10 year old Subie is often in better condition than a 5 year old NA built rust magnet.
Any LS is a great platform, yupp. But this vid is about tuning a EJ207