I am stuck on which turbo to use both are Innovative ball-bearing turbos.I have a gts61hp p trim.And a gt66hp p trim.I just cannot decide which to use I have studied both compressor maps over and over.I am looking to make somewhere around 450-500 rwhp.Someone help im going crazy.Thanks Maybe some one is running one or the other and can tell me what they think.

 

I ran the Innovative T66 with a 1.0 ptrim and found it to be awesome for spool but I believe the ptrim and exhaust housing combo was too restrictive for >450rwhp. If one of your ptrim housings is 1.15 or bigger I would suggest you team that up with the T66 or perhaps upgrade to a q trim wheel. Per the maps, the T61 should meet your power goals, however, I never ran that turbo so I cannot comment further.

 

Thanks alot for the info

 

anyone else

 

double post. what ARs? Divided?

 

The only fact I can offer is a 1.0 Q trim T66 will make 500@20psi on a street port. There is a guy on here (who is selling his motor BTW, MR LV), that made 527 at ~20 psi on the T61 unknown spec on an RE motor. I have a T66 .81 Q trim, which I will use for road race, goal is a fast spooling 450rwhp when it's dialed. AFAIK a Q trim should flow ~10% more than a comparable P trim (here say)Carl

 

id say go with the 61 for street duty