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Yea I need max grip over wet traction. How much lower was your car then stock when you had those tires? Mines stock 4x4 height. Thinking about getting some marching Rpf1's for the back of my car to get rid of the draglites.

Go to the dyno with the same timing and bump it up 2 degrees at a time on the dyno.

I am curious to see how people mounted it under the passenger seat.

Still interested in seeing pictures of peoples installs. Going to be installing mine soon.

Correct, Friction modifier makes the clutches slip more. IF you really want it to lock up, drain and refill with Redline NS. There is ZERO modifier in that fluid so you would have the most grip possible. Keep in mind though, its a "LIMITED slip" for a reason. It isnt a locker, if one tire has...

Anyone have any experiance with these? Trying to think of ways to make the suspension a little more geared towards drag racing but not sure if its worth it. Theres no geometrical advantage in the IRS for drag racing so really the only thing you can mess with is the application of the weight...

Yea thats prolly why. Seems you went threw all the effort for maximum "limited" in limited slip but now your tires cant keep up hahahaha. Im going to change the fluid in the spring in my car and ill prolly put in the same 25ml.

Eh, I would find someone parting out a car to cut a piece out to replace your rather then do that. Radiator support is what ties the front frame rails together. I don't think you have anything to gain by making a tube crossmenber other then cosmetics. There isn't much room to lean the radiator...

Oh wow. I don't have any hopping around corners even before I put and additive in the Redline NS. What tires do you have on the rear of the car. I have 275 drag radials so maybe that's why I didn't have and hopping. When I looked into it IIRC redline recommended 10% mixture of additive.

Did you try cranking it in gear with the fuel pump or EFI fuse pulled out? That would tell you if the clutch is locked up.

I have a similar experience. The "Carquest" oil i used initially with no additive was butter smooth. The Redline NS i put in after made the rear VERY loud and i thought something had come apart inside the diff. I added like 20ML of redline slip additive and its better but still makes noise. I...

Any pictures of the install? Im thinking of just putting it in the glove box and locking it. Dont really use it anyway.

Was hoping to see some installed pics. I like the under the seat idea but I'm trying to think how to cleanly run the wires there and not have them interfere with the seat sliders.

Bump for the 90 degree covers.

Exactly right, witch is why I feel like I hurt my cars performance going to the higher numeric (shorter ratio) 3.91 from the lower numeric (taller ratio) 3.73. I'd be able to launch with less wheelspin if I kept the 3.73. Can't imagine a 4.30, I don't think id have traction in third. I'd love...

Glad to see you got it sorted. How do you like the 4.30? What do you use the car for? I feel like I hurt my cars performance going to the 3.91 from the 3.73. It spins so easy, feel like less gear is better for street play over 500hp.

That would be awesome. Id prefer not to have it just thrown into the glove box. From the pictures i have seen the 128 looks huge.

I have herd of this, How much room is there between the bottom of the seat and the ECU? I would be afraid of someone getting into my car, moving the position of the seat and ripping out all the wires from the ecu connectors. Haha

Nice new car! I live the FR-S. I might be the only one to not have many problems with my Supra. Ofcourse a few here and there and tens of thousands of dollars have been spent but im ususally spending money on upgrades rather then repairs at least 5-10:1.

You really dont need to do anything to the suspension for 400HP, its strong enough stock. Anything after market parts you put in would be to make the car handle better. Im at 520 and all i have is poly bushings front and rear. To be honest, didnt notice a big difference but my car is more of a...