I just wanted to know if you people with heavily modded cars have a solid consistence idle. I wanna know if its just a rotary thing or a modded car thing, its really not bad but itl be at 900 constant then go up to 1000 for 30 seconds then back down to 900.

 

probably just your radiator fan coming on... or a/c maybe?

 

idk, you are only on a street tune right now right?

 

That's what I was about to suggest.

900-1000 is rather negligible and is pretty decent for any decently modified vehicle.

My old altima wasn't modded at all and would do 800-1100 constantly, it ran fine until the timing chain snapped 50,000 miles later.

 

Its sounds like on piston cars that would be due to the cams, but on rotarys, when you go to the drag strip, you can hear them idling like that. But those are ported. Is your car ported?

 

Random Input: Rotary braps are sexy...

 

my stock 04 rx8 does that.. I think its normal, alot of people whine about it and nobody gets it fixed so im assuming its normal and not an issue. It doesnt bother me as long as it stays running and no more then 100-200 rpm jumps

 

i dont know if you would consider my car as heavily modded but my car from a cold start tends to bounce a bit but once warmed up she idles very well... you can see my mods in my garage....

 

my lil honda only has intake and header, and when i start it is rather high, 1500, almost 2000 sometimes, but if i let it warm up it goes to 1000, but sometimes its still at 1500/2000 not sure why

 

Considering its not that high of a surge in idle I wouldn't worry about it. It could be an accessory that is kicking on to just a little jump in idle that the ECU gives the car. Do you have the a/c on or anything when it does that? Cause that could be whats causing the slight raise in idle.

But unless its going to like 1500+ randomly for no reason I wouldn't worry about it...

Are you on a base map?