Be careful spraying on a tuned car. The timing advance is programmed in the chip or computer and may not be retarded enough by simply changing base timing.
Joe
The tuner told me I was fine to retard for nitrous but optimally I should bring it back and put a “nitrous tune” on it as well as the SCT chip is switchable and will hold 4... I didn’t know that and still don’t know if there would be a cable coming from it at that point to switch between “tunes”?? I believe that’s what he told me when we first tuned it 15 years ago and would switch from glove compartment now that I think about it hard..
at any rate I’ve got the non protruding NGK’s in a 6 heat range for an 80hp shot (also have some -7’s if needed) .., will be retarding 3 degrees... I am still afraid to go by the only jet chart I can find online (or anywhere else) for this obviously very rare ‘TNW’ throttle body plate I have... I’m going by the calculator for a single fogger nozzle as the chart for plate shows considerably SMALLER fuel and LARGER nitrous jets than calc says for single nozzle for all levels..80, 100, 125, and 150... I know the plate distributes differently than a fogger nozzle but the differences scare me lol.... and the plate doesn’t have a part number on it... I’m just going to err on safety’s side and be disappointed until I talk to someone with experience with said plate, if I can ever find that person....thanks for the info and help gentlemen
I will be trying to learn to “read” the plugs but not sure if 80-100 shot is enough to leave the timing mark on strap or anything I’m seeing to look for.
