MPGT45 vs. PT76GTSH on a 370ci ?
#1
MPGT45 vs. PT76GTSH on a 370ci ?
I had this MPGT45 on a stock LQ4 and was pretty happy the way it ran. Spool was instantly and made about 700whp @ 15psi
I had an engine noise so Im ripping it all apart and building a forged 10:1 370ci for E-85. I'd like to get about 800-850whp out of it.
This is just my street car so I'd like it to spool instantly. I got a good deal on this PT76GTSH and I was wondering since the GT45 has a 80mm turbine side and a 1.05 a/r and spooled instantly, and this PT76 has a 76mm turbine side and a .96 is it going to choke it at all being 370ci? I was going to build a 325ci but found another deal on some 370 parts.
Anyone else run a single PT76? Results?
Thanks.
I had an engine noise so Im ripping it all apart and building a forged 10:1 370ci for E-85. I'd like to get about 800-850whp out of it.
This is just my street car so I'd like it to spool instantly. I got a good deal on this PT76GTSH and I was wondering since the GT45 has a 80mm turbine side and a 1.05 a/r and spooled instantly, and this PT76 has a 76mm turbine side and a .96 is it going to choke it at all being 370ci? I was going to build a 325ci but found another deal on some 370 parts.
Anyone else run a single PT76? Results?
Thanks.
#4
The stock LQ4 (ls6 cam) now is on E-85 and 25 degrees of timing. Im just estimating the 700whp comparing it to my 5.3 w/ 640whp. There is quite a difference.
#6
MP rates them at like 1000hp. My old 5.3 put down 640whp (15psi, gasoline) with it though a TCI streetfighter converter (horrible) . I would think 750 would be doable, but about at its limits. Other forums say 800whp is doable.
The stock LQ4 (ls6 cam) now is on E-85 and 25 degrees of timing. Im just estimating the 700whp comparing it to my 5.3 w/ 640whp. There is quite a difference.
The stock LQ4 (ls6 cam) now is on E-85 and 25 degrees of timing. Im just estimating the 700whp comparing it to my 5.3 w/ 640whp. There is quite a difference.