I don't think thats posible unless several things were going on.SuckiT said:Like I told you on the sr20 I hit 200psi on all 4 Wiseco 9:1 pistons w/ gti-r motor.
EEK! a flat top, provided that the pin height is such that the deck is zero equals about 10:1 with the SR's 39cc combustion chamber! A GTI-R chamber is slightly bigger, like 40-41 cc's.SuckiT said:I read that the Wiseco pistons were originally designed for a RWD SR20 with a flat top design while the fwd is a dish design. Other than that I have no explanation for the high reading. There is no oil in the chambers. The gauge reads 180psi on my friends B16a which is normal. My cam timing was set correctly 3 times before I told my brother ok its fine. Any other ideas on why the high compression?
What head do you have?SuckiT said:Well my memory still is good, checked again for the gti-r manual and its 164 standard and 135 is the minimum. The DE with a 10:1 is 185 max and 156 minimum. As for my compression results, 10:1!!??? Dang that sucks but what can you do. I was planning to take it out maybe to recheck the internals but if I do should I change the pistons? Or leave it cause its been 6 months and seems fine?