ZR-1 Net Registry Forums - View Single Post - Tuning larger LT-5 cams

rkreigh · 06-24-2011

I'm facing VA emissions with the big 234 cams (not sure what LPE timed them at). I called Graham for some advice and help. for an emissions profile, he recommended going back to an open loop chip and pulling fuel out to clean up the idle. I have an old LPE closed loop chip, but it was before I had Marc pull the secondaries out which does nothing to help the emissions either

I can get the car down to 130 or so HC, but the new standard is 48

soooo........ I'm going to try fresh oil, plugs, cats, and getting an emission chip burned.

I'll need someone in VA that has an exhaust gas analyzer who is willing to work with Marc to do a mail order tune.

any suggestions?? I need to get this done NLT end of July so I need to move out.

HELP!!!!

sorry for the hijack, but it's relavent, and I'll start another thread too.

06-24-2011	#23
rkreigh Join Date: Jan 2004 Location: Alex VA Posts: 1,080	Re: Tuning larger LT-5 cams I'm facing VA emissions with the big 234 cams (not sure what LPE timed them at). I called Graham for some advice and help. for an emissions profile, he recommended going back to an open loop chip and pulling fuel out to clean up the idle. I have an old LPE closed loop chip, but it was before I had Marc pull the secondaries out which does nothing to help the emissions either I can get the car down to 130 or so HC, but the new standard is 48 soooo........ I'm going to try fresh oil, plugs, cats, and getting an emission chip burned. I'll need someone in VA that has an exhaust gas analyzer who is willing to work with Marc to do a mail order tune. any suggestions?? I need to get this done NLT end of July so I need to move out. HELP!!!! sorry for the hijack, but it's relavent, and I'll start another thread too.