TOYOTA / LEXUS STAGE 2 Transmission Mod (Upgraded Valve Body Swap!)
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- Опубликовано: 2 сен 2020
- MY STORE: forward-momentum.printify.me/
All of these mods, including most importantly the modified valve body, will make shifts and kick-downs MUCH quicker. I considered shimming the accumulators while I was in there but in the end decided against it. Those with real world experience told me that shimmed accumulators really only impact the "finish" of a shift and can make it feel "rubbery." If you get your valve body professionally done, you can also get upgraded accumulator springs during your order if you wish.
LEXUS GS400 shown with A650e transmission. Stage 2 should be applicable to any TOYOTA vehicle equipped with the A650e transmission such as GS300, IS300, etc. Please verify all instructions to your specific vehicle!
STAGE 1 VIDEO: • TOYOTA / LEXUS STAGE 1...
STAGES 1 & 2 (RECOMMENDED AT THE SAME TIME)
1. Transmission Cooler -- (video: • External Transmission ... )
2. Line Pressure Dial set to III (most pressure)
3. Trans Strainer ("filter") Replacement
4. Valve Body professionally upgraded to your preferences by a reputable shop, such as IPT (www.importperformancetrans.com/)
SUPPLIES NEEDED (2-4 above; see Trans Cooler vid for supply list)
~6 qts TOYOTA TYPE T-IV ATF
Duralast Strainer Kit, P/N TF634 (includes strainer, 3 gaskets, 1 trans pan gasket)
Transmission drain plug crush washer (motor oil drain plug size will work too)
Modified valve body (to minimize down time, buy a used valve body and have it sent to IPT to be worked up, then install it when you drop the old one. Sell your old one and recoup some cost!)
Transmission assembly grease
TOOLS
Jacks and stands
Gloves (lots of them!)
Safety glasses
Basic hand tools
Ratchet extension
Torque wrenches (in-lbs and ft-lbs)
Drain pan to collect oil
Funnel to fill ATF into dipstick hole
MUSIC
Eternal Flame by Lahar / musicbylahar
Creative Commons - Attribution 3.0 Unported - CC BY 3.0
Free Download / Stream: bit.ly/al-eternal-flame
Music promoted by Audio Library • Eternal Flame - Lucjo ... 
Авто/Мото
Awesome video, thank you for taking the time and making some nice 2nd gen GS videos. Definitely sounded like it shifted a little stronger and didn’t fall on its face as much as the stock VB. 👍✌️
Great video,always very detailed as really anyone with basic car mechanics could possibly do it to their own vehicle, i give thumbs up 👍🏼💪🏼.
Man i cant wait for that exhaust video. Sounds sick!
Definitely thinking of getting a gs300 soon for my first car and your channel has been very informative!
"What was that"
"Something"
That part about killed me 😂
LOL! My son is a typical dude!
As always great video bud!
Nice bro all the best keep on 🔛
I installed a shift kit and it was amazing can't imagine doing it with trans installed much easier out of the car
@John Smith 93 ls400 with the a340e I believe
@@jdm_obsession What’s the biggest change u noticed? Does it make it feel faster?
Great as always. did you buy the modded body from importperformacetrans? also i want to dial mine to 3 when i got to drop the pan to clean ad add fresh fluid do i need to get a trans cooler first i dont want to strain the transmission?
Hey thanks! I actually purchased it from a fellow enthusiast who performed the mods just like the pro shops do. It was very tedious work according to him, requiring massive upfront research and careful modification. Therefore I recommend having the pros do it. IPT is a shop that has been around forever. Also, Level10 is another option. As for the dial to III you do not need the trans cooler. You can do that later. If anything the dial to III slightly reduces temps anyway.
Very nice.
Good video like the rest drive
I just noticed the pulleys on the wall. Did you get the pulley issue squared away with XAT? Thanks for the update on the catch can. There are some nice options for the 2 port can.
Ha ha, good eye. No, not yet. I’ve got quite the collection of tensioner pulleys that won’t work going. I’m told they have a design that will finally work and they will get it to me in a week or so. Good thing it’s a 5 min R&R to replace it!
When the update on the exhaust. I see you sold the mufflers lol. Looking forward to the video
I’ll probably drop the vid next THU. Should be an entertaining one.
Forward Momentum thanks Christian.
@forward momentum can you tell me how is the down shift? i have a Gs400 also but have to press the pedal really down for it to down shift , this car have really lazy transmission ....
Yes it does. The downshifts are better with the modded VB; they snap off quicker.
I truly Appreciate your channel. What city are you out of?
Thanks! I keep personal info on the DL for safety reasons.
@@ForwardMomentum - no problem I can understand it. I'm from the Los angels area, and have a 1998 Lexus gs400 that has been Bulit proof, but I'm thinking that I need to do some service on it. I don't want to pay an Arm and a Leg, at the Dealership. Can you Suggest a location in Northern California or Southern California?
Thanks for understanding. I am not aware of a particular shop in those areas, but I have found Google reviews, as a whole, tend to be pretty accurate. Also, the ClubLexus forums may have some recommendations as well. Best of luck in your search!
hi got a gs300 in uk same colour / trim. love mid rise video. how mutch was it just out of interest. the cleanest on the underside of you car. to one were they salt the roads in winter you would not beleve mine like its been under water compared keep the video comeing thanks
Hi and thanks for watching. This color seems to be a favorite when people see it clean. Stratus has the lift price on their site and I outline all costs in USD in the vid description. Check it out and LMK if you have questions. I advise to wait on the newer lift lock design. I don’t like this design at all.
ok thank for reply yeah ok . color!!!@@ForwardMomentum
i wonder if that 3rd port on the catch can was causing your car to run rich. Maybe something to look into. Now i can find a two port. Thanks Christian
Hey - no, my prior fuel trim problem was present well before the OCC. I even disconnected the OCC and checked the trims with the K&N in place and had the same problem. It was 100% the K&N.
Where did you find the valve body??? Can’t seem to find part anywhere
It was on eBay. IPT will take care of you. Give them a call/DM and tell John I sent you. 👍
I need some assistance please, I have a 2007 Lexus IS250 A/T, where my transmission seems to be stuck in a neutral, When moving through the gears it shifts ok, however when shifting from R to P it makes a grinding sound. Also when the car is on ( Iddeling) and I select the Sport mode and run through the gears, it changes like normal, however, there is a buzzing sound coming from the solenoids, but when I select 1st it stops buzzing, and all the other gears it buzzes.
Scan for codes?
@@ForwardMomentum I did, no codes, no engine light also, so also when the car is in either P, or N or R - it still rolls , so no gear is selected ?
Would it make much of a difference if you shim the transmission after you upgrade the valve body?
Some claim it does. Others claim it makes the shifts like a “rubbed band.” I personally don’t have experience with shimming the accumulators, so I cannot comment.
Do they have the same transmission in the 1998 Lexus GS300?
Pretty much.
did you put any type of gasket maker with the fel pro gasket? or is it just the felpro gasket?
Just Felpro. Do not use FIPG and the Felpro.
@@ForwardMomentum sweet. going to do this tomorrow. been debating on following the service manuel and using either the FIPG or the fel pro gasket but i think you sold me on the fel pro.
Getting off the FIPG is the worst part of the job. That stuff is a royal pain after all these years and heat cycles. 🤬
Whats the big difference between the gs400 an th he gs430
Honestly Wikipedia is a good place to compare. Of course engine size and e-shift on the 400 are a couple major ones.
Can you replace the line pressure solenoid and lock up solenoid without pulling down the whole valve body?
Solenoids should be accessible w/o dropping the VB. At least it appears that way. Admittedly I didn’t touch the solenoids, so double check me.
@@ForwardMomentum Thank you for the quick response. My said two solenoids doesn't have a resistance reading on multimeter so I've ordered replacement solenoids. Still researching if I have to drop the VB to replace. Hearing that is a relief for me ( newbie on AT transmissions )
I really want to get one of these old auto lexus v8s and put a ratchet shifter in it.
I'm interested but still it seems like my LS400 shifts better then this on the stock valvebody with the dial turned up. Traction control fights me on the 1-2 on cooler days
I can’t speak for your transmission but I assure you this made a crazy difference, especially at WOT. It’s obviously hard to film how firm a transmission shifts and one can really only go on sound and maybe the tachometer.
@@ForwardMomentum i'm gonna look into it more. and i'll be watching more of your vids!
Which one is selonied b
Thank you for sharing your experience. However, one time I went to change transmission fluid of my lexus and I was so surprised when I see small pin (dia 3.5mm and length 10mm) with the fluid pan magnetic. I don't know from where it fell. This was 1 month ago. I leaved it and up to this moment every thing is normal on my gearbox. I drive it every day. Any one has an idea about that? I will appreciate.
Hi my name is serjio. I have a Lexus IS 250 v6...2006..
I'd be having a little bit of trouble with my transmission but they charge too much money the mechanics I tried to do it by myself it only works first second and third gear I will appreciate if you have any idea what's the problem
Manual or auto? If auto, you probably need to test the solenoids.
@@ForwardMomentum
I really appreciate that you answer my car is both in the wheel you can put the gears up and down ..
In automatic.......
Your videos are awesome
I seen where you did the manual swap, but what did you do with the auto transmission
Shot it with a .50 cal, then took it to the metal recycler for $25. 😆
😆
I needed it for my gs400
@@johnsem2568 well there are quite a few out there. You’ll find one. Plus mine was slipping so you would have needed to fix 2 clutch packs. Not worth it at that point unless you can DIY.
Thinking on doing this on my A340E but economy here is shit😩💀everything is expensive
I hear ya. Well when you decide to do it, you will like it.
Is it still running? Ans how much power are you getting out of it?
Are you asking about my car in general? (You commented on an old AT video which is why I ask).
Damn bro I need your help! Lol
My transmission is going out! When I press on the gas it doesn’t move sometimes and when it does move it either shifts hard or doesn’t shift at all! Any help?
Start with the cheap items (fluid qty, codes, etc) and work your way to the more expensive stuff. Did it happen all of the sudden or has it been gradual?
Forward Momentum it’s been gradual! It was hard shifting a first! The car would jump going into the next gear! I had a whole bunch of codes including misfires from like 4 cylinders I believe. I was thinking maybe the shift solenoids could be clogged up or something but I’m not sure!
Did you get any solenoid codes?
Forward Momentum I had over 10 codes I couldnt remember what it was! I wanted to do the cheapest things first!
Did you clear them? Can you get them to trigger again? I suggest the Veepeak OBD WiFi scanner and Car Scanner Pro app. You can even export all the codes to email. One code often triggers other codes, so we need to pick out the key codes first.
There's a higher performance 9.5 Dragon Torque Converter for the GS400 by Precision Industries for $825.00 , it adds 50 HP , & has a 5 year warranty, has anyone installed it yet?
A TC adds 50HP?
Yes, just spoke to their representative this morning, thought it could be a great option for us to keep in mind in near future.
Sam A I know TC’s can help with launches, stall rpm and slippage, but from a physics standpoint an object bolted to a rotating mass on the engine may free up some HP, but if they’re claiming 50 I’d be very skeptical. It makes no sense from a physics standpoint.
Sam A Yah it doesn’t work like that lol
They say it changes the Converter from 1.97:1 to 2.53:1 , this is how HP of 50 is increased.
will adding a gs300 or a supra rear end help with torque distribution?
It definitely helps with 0-80 but the ratio will cause the car to run at like 3K RPM on the freeway. UNDER FUNDED GARAGE did this mod on his 430 I believe. He could confirm.
Makes me sad to see this lol i still have a shift kit for a 5.7 tundra that i never got to install
Bummer. It definitely firmed things up a bit!
@@ForwardMomentum trying to sell it or something but not many racing tundras lol
I bet if you put it on the Tundra forums it would go. Quite a few guys mod those trucks. Great rigs!
Has anyone here modded there own valve body?? Has anyone gotten the (trans go )shift kit?I messaged the guy on eBay about his product a lot of people have used his kits for there a340e for the 4 speed autos but trying to find some info for the 5 speed like this guy
My old modded VB had the Transgo kit in it, among other things.
@@ForwardMomentum how was it? I just ordered it. A few people have sent me links to the same one I bought so I could only assume it’s a good kit.
@@ForwardMomentum the actual company got back to me and said they have sold 60 within the last 4 months and haven’t
Gotten any complaints.
@@cornertaken6627 no issues. When I was AT shifting was too soft for me, even with a modded VB. So I went manual.
@@ForwardMomentum so we’re the shifts much quicker and
Better with the shift kit?
ill mod mine soon i ike even harder shits i guess that will be accumulator mods with coins or ill get lathe going and make some it like to me twin o-ring be better design
LMK how it works out for you.
@@ForwardMomentum pardon bad grammar a bit messy