screming_z28_95

how do u set back timming on a lt1 i wanna spray a 125 shot but i have to set the timing back 4 degrees can any body help me

96capricemgr

iTrader: (1)

You can do it either in the computer, in the computer or, in the computer.
A better way to go about it though would be to buy an aftermarket ignition like say the mallory 685(there are others too) and use it for on demand spark retard, rev limiting and window switch ALL of which you should be using with nitrous.

The factory rev limiter shuts off the fuel which would be near instant death for a stock shortblock, forged pistons will handle it better but still chance of damaging them the rods or bearings. Stock injectors??? lock closed if overpressured too high and a dry kit jacks fuel pressure to get the added fuel, if the fuel pump is stock as well I would expect major issues with it supplying the high pressure demand.

C_Rules

iTrader: (7)

i have the software to tune my car but i'll end up going with the 685 when on the juice. saves me the hassle of loading an unloading tunes. like caprice said the 685 is like a one stop shop.

on a side note i'd recommend you get a laptop tuner for yourself as well since its a great tool to have.

screming_z28_95

its not a stop pump and i have the stock fuel pump plus a second electric oen that turns on wen i activate teh system my hole bottom end is forged and i do use a window switch


how much does the 685 cost and were can i get it?