turbonetics HP66

87targa

New Member
Nov 14, 2005
200
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Utah
i am not familiar with this turbo so i was wondering how it would be on the car. the turbo is a turbonetics hp66 with a t4 0.58 ar exhaust housing and that is all i know about the turbine side. I do not have head work done to the car but do have cams.

when do you think this turbo would be in positive boost and then hit full boost of about 17 psi?

i currently have a gt35r with a 1.06 t4 housing and it's way to laggy for my liking (hit positive boost at 3.5k and full boost at about 4k depending on the load). i was thinking about changing the housing on the 35r but recently had the hp66 pop up for a very good price so i would like some info on the hp66.

thanks
 

Failure14

Banned
May 29, 2009
276
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0
Ohio
Well from what ive seen on other threads about the hp66
its not a bad turbo, and about the lag aspect you wont
see a huge improvment, not enough to go through
with another turbo...

.58 and 1.06 have there differences yes lol.
But so does garrett and turbonectics....


Your best bet would probably be the new housing...
Im not a turbo expert but the mathmatical part shows
the partments.