how to get 3sgte past 320 hp? Options

[coustoe]

okay, im getting a st205 clip soon, I know it comes 255hp but 255hp seems so common these days in stock cars, what are the mods starting from greatest hp gains to least that I can do to increase the engine to 320hp?

[west_minist]

Ok. Looking good

Let me say that the turbo for the ST205 is not very efficient over 300hp. It will get you there, but expect to see an increase in temperature at the turbo compressor or hold air system as the turbo speed increase.

At this point, you will be drastically decreasing the life of the turbo.

To really see what I am talking about, check out turbo magazine march. april issues.

I think the ST205 have 245-255hp @ Flywheel leaving around 190+- at the wheels.

3S-GTE DOHC 4/50 95-98 1998 255@6000 225@4000 86 86 (Celica GT-4 Japan)
3S-GTE DOHC 4/50 98 1998 260@6000 239@4400 86 86 (Caldina GT-T Japan)

Basic mods of filter and exhaust can take you up to 260+ and in some instances, up to 280HP with a small increase of boost (>=2+ psi) and fuel.

In turbo applications, you need high flow. Therefore, you would be looking at a high flow filter like th HKS MegaFlow Filter and a high flow 3" custom exhaust system with a Veilside/HKS Titanium exhaust

After that, you are looking at boost to carry you over the 300 mark.

You can run upto 20+psi boost to get you over the 320 mark, which is not the best think.

I have only research HKS as there are were installed and used in alot of JD cars.

If you are really serious in HP up to 450HP, I would advice you to get the HKS GT3037S. If not, a HKS GT2835Pro would do.
http://www.hksusa.com/categories/more.asp?id=1092

After 300hp, I would advice you to get a aftermarket computer or (a Apexi SAFC & AVC), 550+cc injectors, Ignition controller and other stuff to get a constant 320+ @ the wheels (hope you have good rubber rated 1,2,3 @ tirerack for USA to look at).

I hope this helps. More can be had, but cost more money to go higher.

Oh, don't forget to upgrade your clutch.

This post has been edited by west_minist: May 21, 2003 - 10:06 PM