ive searched and didnt find the results that i needed. i know that a tt setup works best on the vq (as opposed to a t88 on supras, etc.). i havent come across many built st motors, whats the reason? is there something that the st setup is lacking in terms of powerband, reliability, boost spike, overboost (st problem) etc? i recently came across this:

"I built this car to be super fast with keeping very clean and almost stock look. All upgrades and addons minus the rims have been done trying to keep a nice clean look. Now the following list is everything that has been done to it. The end result of all of this work is 451whp and 435wtq at 8psi for daily driving on 93 octane and 598whp and 576wtq at 15psi on race gas for racing. This built motor will hold 18psi easy and up to 21psi on race gas so you can get more out of the engine. The redline has been uped to 7800rpm." (http://cgi.ebay.com/ebaymotors/Nissa...17851999QQrdZ1)

now would a built st motor be able to keep up w/ say a built tt setup? i know turbo lag will probably be greater as the t-60 wouldnt flow as efficiently, and have to be swapped out for a larger turbo(t66?). but how well would it work?

can anybody possibly place a built st graph over a built tt graph (preferably in the same power range)

it just made me curious because i havent seen many built st's and am kind of particular as to why.

 

A st setup has nowhere near the potential of a tt setup on the vq engine. A vq is not a high revving inline motor like the 2jz-gte or rb26dett so a peaky/laggy turbo like a t88 is not going to work.

 

what if the rev limit was raised? im just exploring possibilities.

 

there are no single turbo kits out there right now capable of pussing solid 500whp of power yet. except for a few that have bastarized the Tn or APS kits

Wait about 7 weeks and ill show you my custom setup on a build engine

if you are building your engine and do head work you can raise your rev limiter

 

Custom APS setups have hit the 500+, but with a lot of work (external wg, different fuel solution, different ems). TN would need a turbo upgrade along with everything else needed on the APS to hit the mark.

New things are coming soon though so don't lose hope just yet. Custom ST kits hitting 550-650whp have been done a few times already, and similar "kits" are going to be hitting the streets this year. Injected Performance took a stroked 4.3 to 700+ a couple of years ago, but it was a ton of work and money for everything involved. Then again, hitting 700+ with ANY setup is going to get real expensive, real fast...

BTW - that ebay link is complete BS. The dyno looks like it's from a JWT TT, while the car looks like a somewhat plain TN install. I think the guy's just trying realy hard to sell his car. Even with a built motor, there's no way he's running 598rwhp at 15psi on a TN. Not even close.

 

werd on a single turbo he shoudl be like over 20 psi to hit that mark