How much horsepower should I expect????

90mkiiisupra400hp

New Member
Mar 20, 2011
169
0
0
Gardiner, Maine
Hey guys, I just wanted to get everybody's opinion on how much horsepower I should be expecting. I am hoping for a safe 400whp but I don't know if my hopes are to high. Here is a list of the mods I have so far.

Rebuilt 7MGTE
Garrett T4 60-1 with .81 A/R P-Trim hot side
XSturbo tubular manifold
Ebay wastegate
Maft Pro in speed density w/ boost control, timing monitor, and timing control
RC550cc injectors
Walbro 255 f/p
Aeromotive AFPR set at 29psi w/ no vacuum
Full 3 inch turbo back exhaust
Driftmotion intercooler with 2.5inch hard pipes
IS300 COP (not that this will improve performance)
AEM UEGO Wide Band

Now I plan to run around 18psi when I can finally get it on a dyno for a tune. So how much do you guys think I can make with the above mods safely. Thanks for any input.

PS. The car is a 1990 5spd.
 

suprahero

naughty by nature
Staff member
Aug 26, 2005
14,971
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36
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Roll Tide
I think at 18psi, you'll be right at your goal. I don't know much about the 60-1, but I think it's about the same size as my old gt35r. I made around 440rwhp on a 1jz with it at 18psi on a dyno jet.
 

ClutchRR

New Member
Apr 12, 2012
83
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0
Slidell, LA
With your mods you should be around 430 to the wheels as long as your clutch don't slip to bad. What kind of clutch did you go with.