Will that work with a car thats already been custom programed.

 

Racer Z... you are worried about 4 hp? come on.. giving up a few degrees of timing as probably the culprit.. but you are never even going to notice 4 hp to be concerned with... especially if tq went up.. that is what you feel in the first place... 383LQ4SS is correct the timing computer is what you need.. i have one and they work great.. and yes you can use it on an already programmed car... this will get your 4hp back and still give you the retard capbility when on the spray.. money well spent... good luck

Wes

 

I was thinking I should have gained Hp not lost it. Since I added the intake and had the computer programed from stock. I,ve had nitrous on my car for over a year and probably used it twice. It wasn't suppose to be set up as though I would use it all the time. I only wanted the computer done to get more power out of the Heads/cam combo. But, I will get the tuner and see if that helps or just sell the N20.

 

I had my computer set up while back for my heads cam,LS6 intake and nitrous set up. The car actually dynoed lower after the computer was done. The torq went up but I lost about 4hp. Would this be due too the computer being set up for a 150 shot N20. If so how much Hp would I have lost.

 

Exactly. You may benifit greatly from Ramchargers timing tuner. Will allow max timing NA and then pull timing on the juice.