Shownomercy

iTrader: (1)

I had my car tuned, open loop, SD dyno, before I wrapped my crossover.

Wrapped the crossover and while I was checking the trans fluid noticed some primaries glowing red, nothing changed between the time before/after wrap, should I have it adjusted tune wise now?

sbcgenII

iTrader: (1)

The wrap wouldn't affect anything at idle. Did you remove anything to put the wrap on? You could have a vacuum leak.

Shownomercy

iTrader: (1)

Nope, just un bolted crossover and bolted it back up. Did not notice any difference in vac readings at idle.

Only change really was thats its gotten to be ~40F out and it was tuned at prob mid 60s...

Blackpanther99

iTrader: (8)

No re-tune required.

Shownomercy

iTrader: (1)

Well crap, hoping it was something simple.

Guess its going back to the tuner.

Blackpanther99

iTrader: (8)

Weird issue that shouldnt happen with just a header wrap. Hmm.

Shownomercy

iTrader: (1)

Only other change was tossing in a 200amp alternator vs the stocker. So much better voltage at hot idle now, but that shouldn't effect things.

Edit: I am an idiot. Tune was done on crappy alternator and the injector vs voltage offset is probably all sorts of F'd up now.

sbcgenII

iTrader: (1)

Bingo. May not be that table exactly but diff voltage can effect all sorts of things.

Shownomercy

iTrader: (1)

Enough to cause glowing header primaries is the question though, wish I knew how to tune things

sbcgenII

iTrader: (1)

Can you put the old alt back on?

Shownomercy

iTrader: (1)

I can try, gonna first get in contact with the tuner and go from there. Just sucks to install the alternator, gotta swap pulleys back etc.