Recent overlooks show my car is slumping...
After completing my Skunk intake manifold, Edelbrock throttle body, and AEM fuel rail/fpr install, I decided to some maitenance.
One surprise that I found was my compression test results.
Cyl 1 = 205
Cyl 2 = 190
Cyl 3 = 180
Cyl 4 = 148
Also, to add to my new list of worries, my car is running extremely rich and right around 3-2.5k RPM range, on a decline, my car sputters and backfires horribly.
I guess its time I order JDM ITR pistons etc and rip open the block...Any ideas of what might be goin on? VAFC settings are at 0, running on a chipped p28 with Skunk2 program.
Oh, and if I am going to take off the head, what should I replace while its off? I was thinking I should do JDM ITR pistons, cams, rods, valvetrain. That with some tuning should get me around 190ish whp? I just want a reliable street setup while I save for my S2k. Thanks guys.
One surprise that I found was my compression test results.
Cyl 1 = 205
Cyl 2 = 190
Cyl 3 = 180
Cyl 4 = 148
Also, to add to my new list of worries, my car is running extremely rich and right around 3-2.5k RPM range, on a decline, my car sputters and backfires horribly.
I guess its time I order JDM ITR pistons etc and rip open the block...Any ideas of what might be goin on? VAFC settings are at 0, running on a chipped p28 with Skunk2 program.
Oh, and if I am going to take off the head, what should I replace while its off? I was thinking I should do JDM ITR pistons, cams, rods, valvetrain. That with some tuning should get me around 190ish whp? I just want a reliable street setup while I save for my S2k. Thanks guys.
With those upgrades, you're basically trying to build a stock ITR engine. They usually don't break 170 whp even with tuning. If you want to hit 190, you'll have to think up a crazier setup than that.
Now, I'm not trying to be a jerk or anything. But why would a person need a chipped ECU (which give you a new "general performance" fuel curve) if you have a VAFC (which allow you to give the ECU a new fuel curve)?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ThePro »</TD></TR><TR><TD CLASS="quote">Now, I'm not trying to be a jerk or anything. But why would a person need a chipped ECU (which give you a new "general performance" fuel curve) if you have a VAFC (which allow you to give the ECU a new fuel curve)?</TD></TR></TABLE>
I just guessing he picked up the ECU to remove the control of his secondary intake butterflies since he's got the S2 intake manifold.
Make sure you do a leakdown test and find out where the cylinder is leaking from before you pour all your money into something that doesn't fix the problem.
I just guessing he picked up the ECU to remove the control of his secondary intake butterflies since he's got the S2 intake manifold.
Make sure you do a leakdown test and find out where the cylinder is leaking from before you pour all your money into something that doesn't fix the problem.
Thread
Thread Starter
Forum
Replies
Last Post
weavertime1
Northeast (Sales)
33
Mar 29, 2011 05:54 AM
DC4R27
All Motor / Naturally Aspirated
8
Feb 12, 2007 11:45 PM
Mark
All Motor / Naturally Aspirated
19
Jan 16, 2004 01:34 AM



