Colossus
15+ Year Contributor
- 891
- 4
- Jun 23, 2003
-
Crestview,
Florida
Just bought this GSX, and was told to watch out for some of the bolts connecting the manifold to the turbo, as they occasionally back out.
Well, the other night I accidently hit the revlimiter in first gear because I was watching my rear view mirror instead of the tach, so I went ahead and shifted to 2nd gear, and upon reaching about 4.5-5K at a couple psi, I hit a brick wall that really seemed like fuel cut.
So, I took the heat shield off, and retightened one of the bolts that was pretty back out for some reason, all the others are ok.
I checked my FMIC couplings, etc, etc, no leaks that I've found yet. Got back out on the road, hit 17 psi in first, shifted to second, built up to 5 psi, hit that brick wall. Now I hit it again in every gear. The car idles fine, accelerates fine if I accelerate slowly through RPM's so I don't build boost.
What do you think the problem is? I can't find it. It can't be fuel cut since it kicks in at around 5 psi, and my MBC is set at 19..and I can normally hit 19psi all day without a problem. 550cc injectors, and s-afc tuned.
I took out my spark plugs (NGK BPR7ES) and they're decently white on the first 3 cylinders, and somewhat white on the fourth.
Think this is a problem? White is a sign of running to hot? I ordered some more plugs which should be in tomorrow, but is this a probable solution?
Well, the other night I accidently hit the revlimiter in first gear because I was watching my rear view mirror instead of the tach, so I went ahead and shifted to 2nd gear, and upon reaching about 4.5-5K at a couple psi, I hit a brick wall that really seemed like fuel cut.
So, I took the heat shield off, and retightened one of the bolts that was pretty back out for some reason, all the others are ok.
I checked my FMIC couplings, etc, etc, no leaks that I've found yet. Got back out on the road, hit 17 psi in first, shifted to second, built up to 5 psi, hit that brick wall. Now I hit it again in every gear. The car idles fine, accelerates fine if I accelerate slowly through RPM's so I don't build boost.
What do you think the problem is? I can't find it. It can't be fuel cut since it kicks in at around 5 psi, and my MBC is set at 19..and I can normally hit 19psi all day without a problem. 550cc injectors, and s-afc tuned.
I took out my spark plugs (NGK BPR7ES) and they're decently white on the first 3 cylinders, and somewhat white on the fourth.
Think this is a problem? White is a sign of running to hot? I ordered some more plugs which should be in tomorrow, but is this a probable solution?
