Keep posting, I want to see how far we can take these motors.
Keep posting, I want to see how far we can take these motors.
Bump
Update:
The ported head I was running seems to have a few issues and was starting to drop a couple of valve guides so I got my old head and moved all the valves/springs/retainers over. I ported the stock head I have out and unshrouded the valves in the combustion chambers. That was a project in itself and I probably have at least 10-12 hours into it!! It's apparent that the stock ports needed a bit of work specifically around the bowl area between the guide and the valve seat. The exhaust bosses around the guide definintly had to be ground down (not the guide, just the bosses around it) and seemed to intrude on the port a good bit. I'll probably have the head entirely assembled and back into the car in a couple of weeks or so. I had recently helped my friend make over 625whp on his civic hatch (S366 turbo, way over 30psi boost) and he's gunning for me to get my car back together and wants to re tune it for me on the dyno with the new head on. So stay tuned!
Update: the head is back on the car and torqued down TIGHT with the head studs and copper spray. I'm using a new AC Delco digital torque adapter and it worked pretty well to get the right torque on the head studs. I have to get the intake manifold and turbo mani/turbo back on and also set the valve lash before its done. I'm probably going to upgrade to a 6262 turbo or somthing bigger in order to make more power, probably better in the long run than changing housings
Soo doing research on my setup, I initially thought the turbo was undersized but the compressor side is the same as GT35R (650+hp) and my turbine is the same as 6262 precision (rated to 705hp) so I don't think the turbo is the restriction overall. My intercooler is about 8" tall but only 2.75" thick so I'm thinking that might be my main issue considering most 600hp rated cores are between 10-12" high and 3"+ in thickness which is at least 25-30% bigger in terms of outright flow...
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