Need help on 99 454, cant rev past 4800
I have just started using efi live and i can not get my truck to rev past 4800. What all tables effect this? It has already been tunned by wait4me and the minimum dwell was reduced. My cam retard is between 0 and 2 if that would effect it in any way. What else can i do? Also iv read about a tcc apply pulse width. I cant seem to find anything about this. is that just on the newer pcms? thanks!
okay so after doing some logging it turns out its closer to 4900 but still.. can anyone help me? its driving me crazy. no point in putting my new cam in if i cant rev any higher. I want to be shifting at 5500 with the new cam. thanks
Post your tune for starters, maybe your shift points are setup to have it shift at a specific mph and not at a certain rpm.
~Erik~
2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.
Have you done some upgrades to your valve-train? If it's stock I'm surprised you can make it rev that high without running into some serious valve float. Stock springs are pretty weak.
New to EFILive, been wrenching for about 20 yrs now. Current project: 1998 Chevy K3500, L29
Ill post my tune when i get to my efi live computer later tonight. Its not the shift points. If i try to raise the shift points it hits that limiter, its like a hard limiter. Feels like it cuts fuel or spark. hits pretty hard. No the valve springs arnt stock, or the cam. I have a mild comp cam with matching springs set up at the correct installed height. as well as bigger injectors, ported heads, headers, and a 3200 5 disk lockup converter.
Sweet! What headers do you have, and how do you like 'em?
New to EFILive, been wrenching for about 20 yrs now. Current project: 1998 Chevy K3500, L29
Still gotta get that tune posted up. The headers are headman. They are actually for an older tbi truck (they were much cheaper). I Just welded o2 bungs in the collector.
the stock rev limit is set at 5000rpm and refuels at 4800 rpm. Up the rev limiter.
peace
Hog
1997 rcsb stock L31 longblock, Marine Intake with 28# EV6 injectors, L35 2700 stall TC,Hooker LT's 2.007 60ft
I find no table to change rev limit? There is the minimum dwell table that says to cut the last column by 1/3 to raise the rev limit. wich i have done. Am i overlooking something?
here is my tune. custom.wait4me.tun
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