Computer boost overide ?
I drove my modified Bonneville today. I mean really hard . I was checking all the mods .
I did them all in one swoop. It was reasonably fast. Keep in mind this is the first time I've really drove the car.
I did notice a ... step like progression in the acceleration. Is this the PCM ramping up timing or the boost bypass kicking in ?
I do have a smaller SC pulley. I put in 92 octane and a full bottle of octane boost so I wouldn't think it was the timing.
Does anyone else have this sensation with a modified car ?
1992 SSEI Bonneville with all the options except heated windshield and ride control.
Mods Include 1998 SC'd Delco Ignition with Belden wires.
Autolite 104 plugs ,180 degree tstat
K&N Filter with ricepipe, 2.3 inch pulley with ZZP idler
Ported exhaust headers, Poly end links.
High flow cat. TPS tweak, Boost bypass mod
High low fan override.
" Always try it yourself. I bet the guy you pay to repair it broke a few before he fixed your'*. "