Guest kc6wfs Posted February 2, 2002 Share Posted February 2, 2002 Hello all, On my holley I have rejetted it and my Haltec AF meter shows it's lean only at crising on the fry. It's not even 1/4 throttle. Do I need to change the "Cam" on the carb to have it squirt sooner? It's the only time it's lean. My plugs are white with a trace of red. Any ideas?? Tim 240Z saw it. Thanks.. Dave Quote Link to comment Share on other sites More sharing options...
Guest greimann Posted February 3, 2002 Share Posted February 3, 2002 Your main jets are too lean. Go richer (up) by two numbers and read your plugs again. If still white, go two more numbers until the plugs are tan. Quote Link to comment Share on other sites More sharing options...
Guest greimann Posted February 3, 2002 Share Posted February 3, 2002 Your main jets are too lean. Go richer (up) by two numbers and read your plugs again. If still white, go two more numbers until the plugs are tan. Quote Link to comment Share on other sites More sharing options...
Guest kc6wfs Posted February 3, 2002 Share Posted February 3, 2002 Thanks I'll bump it up and recheck today.. Dave Quote Link to comment Share on other sites More sharing options...
John Scott Posted February 3, 2002 Share Posted February 3, 2002 What Greimann said, then jet the secondary side for MPH, not ET in 1/4 mi. Lastly adjust pump shot and squirters for best 60 ft. JS Quote Link to comment Share on other sites More sharing options...
Tim240z Posted February 4, 2002 Share Posted February 4, 2002 Dave, The comments above are on the money. The change in pump cam is only necessary if the engine stumbles when the carb is opened full bore from idle or low cruise. If it is accelerating cleanly, then you are getting the correct 'squirt'. BTW...the ideal way to get a good plug read is to cruise at highway speed as usual then cut the engine before you start having to idle and 'stop start' driving. Obviously this is difficult unless you have a race track to use, but like I said "ideal". This way you get an accurate plug color from the main cxarb circuts and not the idle circut, which may be rich enough to give you a 'false read'. Also, while you're at it (don't you just love that phrase...always means lots more work), you may want to consider ducting some cool air to your air cleaner, I remember how much under hood heat your Z generates! Tim Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted February 5, 2002 Share Posted February 5, 2002 If you do put a fresh air system, you'll want to check jetting again, mine has a rediculously large roundy round (5" tall, it seemed like a good idea at the time ) air cleaner going through the hood with a cowl scoop and I think since I went to that, the car needs to be rejetted, I've yet to really sort it out due to an electrical problem. Also I know that outside temps and stuff play a major role, mine feels way way faster on a cool morning thats for sure. Good luck with it Dave. Regards, Lone Quote Link to comment Share on other sites More sharing options...
Guest kc6wfs Posted February 5, 2002 Share Posted February 5, 2002 Hay guys, Well just poped the hood and pulled the primaries. I had 66H's in there. I know I jetted this origionaly, and came up with that some how. Now I have 70 's in there. Think I have 76's in the snd'aries. It feels pepier(sp). I have not played with it on the street yet. Had a MGD while playing. hehe. But i did notice a bad stumble at 4000RPM. (WTF!!!) Hell. The rev limiter has been on for MONTHS!!!!!!!!! I set it one day when the WIFE wanted to go and drive it. Not too often I drive it during the winter time. hehhe OK question for you HIGH-TECH guys. Will it, with being set at 4K start stumbling at 3K? I would think not. It's a Crane FireBall HI-6 with a TCI coil. I reset it for 6k and now no stumble but that was after rejetting also. Should I get the Crane brand coil??? Any how that's what I did today.. Tomarrow I have to change out the trans pan. I installed a drain plug and it got taken out my a speed bump. boooooooo. Tnx, Dave Quote Link to comment Share on other sites More sharing options...
Guest kc6wfs Posted February 9, 2002 Share Posted February 9, 2002 Thanks guys, Not lean anymore. Dave Quote Link to comment Share on other sites More sharing options...
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