lq4 402 pt7675 going to a ?????
07-04-2013, 05:52 PM
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lq4 402 pt7675 going to a ????? So I have a lq 402 It has a pt7675 turbo which is to small. I am wondering what the smallest physically sized turbo there is that I can try and fit. its a c5 corvette so I have very little room to work with. I want to make 800 -900 hp or 750+ with my usable hp that runs all the way to 6700-7000 rpm. at the moment the car is at 680hp 720 tq but the power falls off around 5000 pretty bad. I only have about an extra 2 inches I can go in width on the exhaust side and really cant go bigger on the inducer side unless i do some hood modifications. If anyone has any ideas that would be much appreciated..
07-05-2013, 08:39 AM
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PT88 for sure. Has the same H compressor cover as your current turbo only the exhaust housing is just as big. Literally exactly the same diameter as the compressor housing so if you could fit a 7675 you can fit an 88 in the same spot....In theory of course. It worked for me when I upgraded
A BW S480s physical size is way bigger. Unnecessarily big IMO but they are very durable and were never designed for compact locations on small cars. For what you want it for the PT88 will reach the same goals in a smaller box.
A BW S480s physical size is way bigger. Unnecessarily big IMO but they are very durable and were never designed for compact locations on small cars. For what you want it for the PT88 will reach the same goals in a smaller box.
Last edited by 1sick-Z; 07-05-2013 at 08:47 AM.
