L28et less muffler

[JessZ]

I've taken off the muffler to my stock l28et set up on my 240z and since then the car seems to idle rougher and actually die at idle. I was under the impression that turbo motors did better w/o back pressure? The car is faster at wide open throttle, which is what I was after, but it's just the idle thing now. I was wondering if I should simply turn the throttle nut to raise th RPM @ idle, or can I lean the fuel to help eliminate the rich smell, and in turn raise idle RPM a bit?

 

Thanks ya'll,

 

jesse

[randy 77zt]

you have something else going on-when i had stock l23et in my 77 it wouldnt idle after washing the motor-it was water in tp switch connector.the old nissan efi takes some work to keep it running consistant

[JessZ]

That curious to me then, because when I had no muffler (L28et) originally the car did the same thing, then I put the muffler on and it stoped, then just today I took it back off to that RRRRRace car feel back and the low idle thing started again. I know my '83 electronics are crap, but it still seems odd.

[george.bryant]

Weird. I've ran my L20et Without any muffler system at all, no even exhaust pipe. Just the dump pipe and i never had any probs.

[JessZ]

Well as it turns out there were two vaccum leaks, one small and one a little larger which happened to pop up roughly the same day I cut the muffler. My Z always throws in a little kink for me to work out. Gotta luv it.