Upcoming project, need help.

Since I got my supra now, I'm thinking of what to do next? The car already has so much in it, I actually am going to need to detune it a bit

Thinking to go around 800hp, so I need to figure out which cams, exhaust and turbo I'm going to go with. The car already has the proper custom intercooler, manifolds.. and all the pipings including the downpipe-midpipe will be done custom. So basically I'm in need of cams (thinking of either 264 or 272 - HKS), exhaust (muffler section only and I guess a 100 - 105 mm diameter should do it) a turbo and meth/water injection system.

I've been looking GT4088, GT4094 and HKS T04Z. I'd like to hear some opinions of those who's been using/used one of these turbos in their MKIV's. Responsiveness, top end power etc.. The price different is serious between GT's and HKS, I'm curious if it would worth it?

Also I need to replace the dash parts with new OEM ones, not carbon or any other stuff, looking for regular old looks where is the best place I can buy the whole dash kit?

Any ideas would be much appreciated,

Salih

Hi Salih,

Not to sure about the single turbo stuff, but no doubt some more experienced member will be able to help you with that. Out of interest there is quite a good thread on here with regards to Single turbo's and ECU's which shows what dyno powers people have been achieving.

Link

With regards to the panels in the car. I got a complete 6 spd set for £350 although that was a few years back. Paul Whiffin here on the forum does sets of dash panels for about the same price. Again see link.

Link to dash panels

Hope this helps.

Second hand dash panels could be the way to go from a trader here (Keron at extreme performance)

A new dash set will set you back over £450 from Toyota, ive just priced them up a couple of days ago.

Garrett Turbos and HKS are nearly identical, as both are manufactured by Garrett - the main difference, as far as I know, is that HKS have some proprietary housings that mean boost comes on harder and they make slightly more power.

T04Z won't make 800, and you might be pushing it on the 40 series. I think you'd have to go 71mm or bigger to achieve that comfortably.

As sdistc says I would go 71mm turbo, something like a billet 71 or one of the smaller gt42's, cams depends on how high you are going to rev the engine?

I'm thinking to rev it to 8000, I thought T04Z is more close to 42R than it is to 40R. What about T51R?

Leaning towards to T51R KAI or Precision 71mm. I'm now searching for threads about cars which use these, but if anyone would like to give feedback, that would be nice