***UPDATED INFO***Dyno/Tune experts, please step in..
Thread Starter
Safety Car
Joined: Aug 2002
Posts: 3,796
Likes: 11
From: Long Island NY
***UPDATED INFO***Dyno/Tune experts, please step in..
had my car dynoed over the week.. the car seems to fall everytime it reaches ~5300 RPMS all 3 pulls for just a bit. same time, same drop same RPM.. mainly in 4th gear.. on the highway, if i stand on it in 4th, when i reaches ~5300 RPMS, it feels like i took my foot off the gas..bogs pretty bad...but 1st, 2nd, 3rd pull to 6000 RPMS with no problem. during the run, when it drops, some fuel comes out the driver's side tail pipes. no check engine lights.
it's a 2000 FRC w/ 29,xxx miles
mods:
-halltech stinger
-Z06 intake maifold
-Z06 ti's
-Kooks 1 3/4" w/ 3x3 cats
- NGK TR55 gapped @ .035 w/ Z06 wires
the car has NO tune as of now. is this more of a tuning problem, or should i start looking at somewhere else? other than that problem, the car runs fine
thanks in advance,
vinnie
it's a 2000 FRC w/ 29,xxx miles
mods:
-halltech stinger
-Z06 intake maifold
-Z06 ti's
-Kooks 1 3/4" w/ 3x3 cats
- NGK TR55 gapped @ .035 w/ Z06 wires
the car has NO tune as of now. is this more of a tuning problem, or should i start looking at somewhere else? other than that problem, the car runs fine
thanks in advance,
vinnie
Thread Starter
Safety Car
Joined: Aug 2002
Posts: 3,796
Likes: 11
From: Long Island NY
After a help from forum member Fallen ( BIG THANKS!!!! 
), we were able to read my computer with his HP tuner.. at that RPM and gear, the computer shows 5 degrees of knock retard..the car falls out pretty hard... i can only assume that the car needs a tune to straighten this out?
thanks
vinnie
), we were able to read my computer with his HP tuner.. at that RPM and gear, the computer shows 5 degrees of knock retard..the car falls out pretty hard... i can only assume that the car needs a tune to straighten this out?thanks
vinnie
ttt
Le Mans Master
Joined: Sep 2003
Posts: 6,278
Likes: 227
From: Farmington CT
Cruise-In VII Veteran
vinnie, swap out the knock sensors, the intake manifold comes off in about 15 minutes and you could 'borrow' one from one of your buddies cars; almost sounds like the sensors are p/u some frequencies the headers may be producing?? no cracked springs?
