need some ideas on [*] the circle track car this issue

fresh built ln2 ... stage 1 cam from WebCams, crane 1.6 roller rockers, manley thick wall pushrods, very mild port work, 3cc's shaved off head, stock bore, but new rings,bearings etc... about 10:1 compression

95 odb1.5 chipped ecm ... egr shut off , mild spark advance, PE mode engages earlier (tune was done for stock motor before these mods)


when i blip the throttle from idle it doesn't have the throttle response i would have expected (or even the response the stock motor had)... it sounds like its starving for air if you know what i mean

once its reved up a bit throttle response seems normalish

but from idle it cant get out of its own way

haven't driven it on the road as its not street legal (circle track car) and still breaking in the motor

as its obd1.5 i cant get live data from it (ordered a cable that should let me see live data with tunerpro rt) but there is no CEL

could it be a bad sensor or something ? or could it be the tune now that it has a bigger cam, headwork and more compression then stock ... do i need to increase the injector pulsewidth ... or where should i be going for tuning changes with theses mods?

any thoughts or ideas would be appreciated

My guess is AirFuel is way off. Get a wideband gauge on and see what it is doing.



FU Tuning