new here and thinking about getting a Supra

[WhisPer]

I might run low boost on 91 so somewhere around 13-14 psi right? and I will run highboost on 100 octane


wouldn't do nitrous just because it's cheap...because if you do nitrous properly, it's actually not that cheap. When you price in the cost of a wet kit (not dry), automatic electronic rpm limits, purge kit, separate test switches for your fuel solenoids, in-dash electronic nitrous pressure gauge, bottle blanket, plus proper installation, testing & tuning, it isn't what I'd call a cheap proposition. Again, I do recommend it in general, but only if you do it right


Well I would just buy a wet kit thats it, you dont need a purge kit you can just purge the bottle after use right? and if you know what your doing you dont need the rpm lights.

[pwpanas]

Originally Posted by WhisPer

I might run low boost on 91 so somewhere around 13-14 psi right?

Yep

Originally Posted by WhisPer

...Well I would just buy a wet kit thats it, you dont need a purge kit you can just purge the bottle after use right? and if you know what your doing you dont need the rpm lights.

I agree you could skip the wet kit, but no, you absolutely do need electronic rpm limits on the solenoids (not lights). If you try to spray while launching, there's no way on earth you're going to be able to hit 3k rpm exactly to begin the spray, while trying to keep your Supra going straight down the track and trying to modulate wheelspin...

Originally Posted by WhisPer

also I was wondering how well the supra performs on time attack courses. I know it will be a beast on any stright away but is the turning good, and can it handle the constant high rpms. I know its a heavy car but only weighs a little more then the evos/stis that dominate time attack.

I agree it should do great on time attack, depending on the size of your single turbo (if you do go single turbo). However, note that suspension modifications to optimize your time attack performance wouldn't be ideal for drag racing.

[WhisPer]

Originally Posted by pwpanas

Yep

I agree you could skip the wet kit, but no, you absolutely do need electronic rpm limits on the solenoids (not lights). If you try to spray while launching, there's no way on earth you're going to be able to hit 3k rpm exactly to begin the spray, while trying to keep your Supra going straight down the track and trying to modulate wheelspin...

I wouldnt spray tell 3rd I did'nt kno people spray off the line, Anyhow it doesnt matter much because if i do want to time atttack then nitrous is illegal.

Originally Posted by pwpanas

I agree it should do great on time attack, depending on the size of your single turbo (if you do go single turbo). However, note that suspension modifications
to optimize your time attack performance wouldn't be ideal for drag racing.

Yea I was thinking of getting HkS coilovers, some sway bars and strut bars but I dont know of any good brands for supra yet I know cusco makes sways and a lot of brands make strut bars but I havent looked into it. Also What else might help suspension wise? maybe something like an Hbrace and a front splitter?

[pwpanas]

Originally Posted by WhisPer

I wouldnt spray tell 3rd...

Even so, you still need electronic controls ... if you spray at too low of an rpm, you will almost certainly bend your connecting rods. In my experience, the guys that leave stuff like that up to chance, or a guestimate while trying to keep the car driving straight down the strip, are guys that end up prematurely rebuilding their engines.

Also, the purge kit is not for the bottle after you spray...it's for the lines before you spray, so that the power comes on right when you activate it (and with a semi-random delay a second or so later, after the lines have had the air pushed out of them).

You asked for advice on this thread, and for what it's worth, my advice is 100%+++ for sure to either: 1) not install nitrous, or 2) to be sure to install it with all of the proper electronic controls.

Originally Posted by WhisPer

...Yea I was thinking of getting HkS coilovers, some sway bars and strut bars but I dont know of any good brands for supra yet I know cusco makes sways and a lot of brands make strut bars but I havent looked into it.

Titan Motorsports offers a good sway bar set, and the best strut tower bar is by TRD. TRD also makes sway bars, but they are heavier than the TMS set, and not adjustable.

Again, note that some of these modifications, like a stiff front sway bar or coilovers with a stiff rear spring rate, can make your Supra slower at the dragstrip. A car purpose-built for one application (eg drag racing) will always be significantly faster than the same car that was attempted to be built for all applications. If you want to be really fast at time attack, for example, I'd suggest you not worry about drag racing...or vice versa.

Originally Posted by WhisPer

...Also What else might help suspension wise? maybe something like an Hbrace and a front splitter?

No one makes an Hbrace or a front splitter for the jza80 (Mkiv Supra chassis). In Europe, an active front spoiler was available, and several aftermarket body kit nose pieces come with a front splitter built in, such as the TRD widebody kit.

If you want advice as to how to invest your $ to ensure your Supra can take corners as fast as possible, invest in driver training at your local road course. A highly skilled driver in a crappy car will beat a mediocre driver in a great car every time, in pretty much any race event with turns. As they say, the best mechanical investment you can make in your car is to put some $ into the "nut behind the steering wheel".