3.76 Supra Differential-More info
12-03-07, 04:45 PM
#32
Yes through the standalone EMS. I can set the rev limit to what I want it to be. Keep in mind, you have to have everything up to spec or else it could be disastrous. I have stronger pistons, rods, valve springs, and valves installed in my new engine. Also, revving higher will not gain you more power unless you have proper head work or have some kind of FI. In my case I have both...the head has been custom port and polished and the turbo is blowing in more air. I'm also thinking about putting in a HKS264 cam on the ehxaust side in the future. Either way, if you raise the rev limit on the GS400 to say 7500rpm...I'm not sure if that engine will hold together. Also, you won't make much power because that V8 starts running out of breath close to redline. You will need to do some work to the internals, port the head, and cams to gain from an increased redline.
12-06-07, 06:11 AM
#33
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how noticeable is the rear-end upgrade. can you feel a difference? i'm looking into the HKS exhaust cam gear and the 3.76 gears. any suggestions? i want to keep it N/A for now as a DD but still be able to get Slideways
12-06-07, 08:09 AM
#34
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the rear end upgrade will not work for your gs3. The 3's already have a 3.92 gears in them. Going down to the 3.76 would actually slow you down! You should just add the lsd unit to your rear end!
12-06-07, 04:32 PM
#36
You should be able to disassemble it and swap the differential pieces. The supra TT rear end does have an advantage though. It has 4-5x more cooling fins than the GS stock rear. Under heavy load those fins will help the rear diff from overheating.
12-11-07, 12:38 PM
#39
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Guys, I just did this mod and it's worth it. However, I didn't swap->
out the whole pumpkin. We opened up the TT pumpkin and swaped out the Diff. The car feels a whole lot more stable at high speed and now I am able to put the power to the ground. Driving a 500+rwhp GS on one wheel was extremely scary. Everytime I hit boost one wheel would spin and slide the back end into the next lane LoL. For price reference I paid $400 for the TT diff and $300 for the install. By the way I have a 2000 GS300.
Later, Jose
Later, Jose
12-11-07, 12:46 PM
#40
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This is what I did, no problem so far. A night and day difference
in my car.
Later, Jose
You should be able to disassemble it and swap the differential pieces. The supra TT rear end does have an advantage though. It has 4-5x more cooling fins than the GS stock rear. Under heavy load those fins will help the rear diff from overheating.[/QUOTE]
Later, Jose
You should be able to disassemble it and swap the differential pieces. The supra TT rear end does have an advantage though. It has 4-5x more cooling fins than the GS stock rear. Under heavy load those fins will help the rear diff from overheating.[/QUOTE]
12-12-07, 06:34 AM
#42
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Honestly nothing special, the Is300 guys have been doing this for years.
TT head gasket, TT piston and Rods, ARP studs,Tec3r standalone, PT 67bb turbo, Unorthodox pulleys, 85LB Injectors, Water Meth. I dynoed 552 to the wheels at 25lb of boost on 93 octane with water meth. I only had 1 fuel pump at that time. Now I have dual fuel pumps I am sure I can hit 600 + rwhp with race gas at 30lb. However, my tranny is not going to like that LoL.
Later, Jose
Later, Jose
12-14-07, 06:43 AM
#44
TT head gasket, TT piston and Rods, ARP studs,Tec3r standalone, PT 67bb turbo, Unorthodox pulleys, 85LB Injectors, Water Meth. I dynoed 552 to the wheels at 25lb of boost on 93 octane with water meth. I only had 1 fuel pump at that time. Now I have dual fuel pumps I am sure I can hit 600 + rwhp with race gas at 30lb. However, my tranny is not going to like that LoL.
Later, Jose
Later, Jose
12-14-07, 11:34 AM
#45
I don't mean to highjack--just a quick question for clarification. (I'm a new convert to the RWD car, purchasing a GS400 or 430 in the near future. Yes, I did a search to try to learn more--maybe I missed it...)
If someone could quickly clarify this for me, I'd appreciate it...
The GS did NOT come factory with an LSD--just a D with 3.2X gears, right? The Supra TT auto unit is a 3.76 LSD that will bolt right in. Better gearing with limited slip=better grip. This upgrade saves only 0.2 seconds off a 0-60, primarily because on the extra gear change to 3rd. This swap is the same for 400 and 430 models.
Also, a torque converter upgrade complements this, right? Will this cut any 0-60 time?
I'll keep searching in the meantime...
Matt
If someone could quickly clarify this for me, I'd appreciate it...
The GS did NOT come factory with an LSD--just a D with 3.2X gears, right? The Supra TT auto unit is a 3.76 LSD that will bolt right in. Better gearing with limited slip=better grip. This upgrade saves only 0.2 seconds off a 0-60, primarily because on the extra gear change to 3rd. This swap is the same for 400 and 430 models.
Also, a torque converter upgrade complements this, right? Will this cut any 0-60 time?
I'll keep searching in the meantime...
Matt