How do some guys run untuned?
My car is together but I have to wait a week or so until it can get tuned. In the meantime I still have to work out bugs that require me to drive the car. I've been tooling it around the neighborhood but it drives like utter crap - pops, shakes, stumbles, etc... unless you find a sweet spot.
Then I read how guys are locking their timing and running stock PCM's untuned - some in the low 10's but I can't drive around my neighborhood?
I don't have the time to sit and do nothing to the car waiting for it to be tuned but, again, I have to drive it to find some of the issues i'm looking for.
Is it because i'm running an SCT meter? It's calibrated to my 48lb injectors and there's an SCT flip chip in the car with like 4 base tunes to get the car running but every one that i've tried does roughly the same thing.
I need to know if the bucking, stumbling, pops and shaking are tune based or is there something wrong that I need to address before taking it for the tune?
SCT flip chip w/ few base tunes to get the car running
3924 plugs gapped at 28
MSD wires, Cap, Rotor, Coil
It seems to idle just fine, will rev freely but as soon as you drive it is when the issues occur. Light throttle roughly 2000 rpms from a stop you have to pedal it.
Any thoughts? Tune based or is it something else that needs fixed?
1986 Mustang GT
306 E303, TEA 185 TW, Quicktime Turbo 67mm, Redneck C4 15lbs boost
*Sold drivetrain - Rolling Chassis may be available*
Last edited by ratedz; 03-31-2008 at 06:21 PM.