November 2010 Dyno session does not go well, we determine my head must be bad. Car had uncontrollable knock issues and ran poorly under boost. I knew it had a couple hairline cracks but I wanted to try it out anyway. Also it seemed I had some bent valves after performing a leakdown test. Smoked pretty badly on WOT pulls on the dyno. Car drove fine enough but performance was severely lacking. Car is also running on speed density.
Here are the cracks on some of he combustion chambers once I yanked the head.
Found another MIVEC head in Nov and had DB Performance perform the head work. Bit of porting and 1mm oversized supertech valves put it.
March 2011 After fixing the head I put 2400 miles on the new motor. This past Thursday I visited DB Performance for another dyno session.
Boost drops a bit and I will try to fix that with a stronger WG and by running a BCS inline with the MBC. Car does not knock at all, the head was definitely most of the problem. Also the car does not smoke too bad at all after a WOT pull like it did back in November. The car should make some more power with the 2.3 and the Black, I think the FP4R cams are holding me back a bit on the top end and the boost drop could be a result of those cams. Maybe some GSC2s cams will help.
Current Mod List:
ACT HDG6
3" TBE w/ebay O2 housing
BR Race Core FMIC
LICP Niesi
1680 FIC High-Z injectors
Spoolinup High Impedance resistor bypass
255 Walbro modded
Kenne Bell Boost-a-pump
Spoolinup COP
FP4R cams
FP Beehive Springs
Supertech 1mm oversized valves
Ported Head by Gosh to DB Performance spec
K&N 4" Filter and CAI
FP Black Turbo
Grimspeed MBC
FiD Tubular Ex Manifold
E85 and Shane's tuning abilities
Hope to get this pig up past 530HP, that should put me over 600HP dyno jet which is a silly goal of mine.
