street port idle?
 

when they mean street port idle do they mean that fast rump..pause...rump sound that sounds cool?what causes that? my motor is a stock 13b with 48ida. i want to keep that idle cause mine goes of and on!

I can get my monster SP to lope like a bridgey if its rich as fuck and purr smoothly if tuned right.

so how do i make my stock 13b stay at that idle

There are pros and cons. You can use smaller venturies and idle jet say 65 or smaller, BUT top-end will suffer.

so why does this brap..brap...go on and off??is there a idle speed that will increase the chances of that idle??

You've basically got too much unburnt mixture spilling over to the next phase...thus causing a near stall condition...loping!

Never heard it desribed that way, but I do love the sound of a bridgey. Under 4k rpm they're worthless, 5k+ hang on.

i like the choppy ness of my lrg srt port people always ask if i have cams lol

I was asked that once. I replied "Nope, no cam at all". Talk about a "Deer in the headlights" look......:lach:

Same here on the cam, body rocks side to side at idle sometimes from the lope. Something most V8s will never do. lol

My large streetport has a lumpy idle. It only has about 2 hours run time though; mostly idling. It's around 1100RPM at the moment. Maybe when it's broken in it'll smooth out at a lower RPM.

A heavy stock flywheel will smooth out the idle of an engine.
A light flywheel will permit it to idle rougher.

I have to run a lot of heavy, start and stop traffic with my daily driver street port. I changed from a light flywheel back to a stock flywheel, and my idle smoothed out; it will almost (but not quite) pass for stock porting.