It started a couple weeks ago. But under hard or mild acceleration between shifts my rpms will shoot up about 500 or more rpms...? The throttle isn't sticking my vacuum/boost shows regular...any ideas on what it could be??

 

It's just you pushing the clutch in while the turbo is still spooled or your foot is still on the gas. Don't worry about it unless it is slipping in gear.

 

It's normal.

 

=Throttle Hang alot of evos got it

 

Is there a cure for throttle hang though?

 

Yeah lay off the gas earlier and not at the same time.

 

What is throttle hang exactly? How can it be fixed? The car never acted like this before even with haaard acceleration so I'm thinkin something has slack or something....

 

when i changed my mass air and blow off valve i never had that problem agian

 

lol i was about to ask about this after a curvy road we went on. first time i really pushed my car to the limits.

 

That's actually incorrect. Here's a thread I found that explains it better with a possible cure.

https://www.evolutionm.net/forums/sh...ttle+hang+cure

 

Friend of mine thought it was just flywheel inertia...I dunno. I've had it on my car since day 1.

 

i dont kno i tested it again today. hard accel then i clutched in and paused before i went to the next gear and theres a slight delay before the rpms will shoot up..it makes slammin gears kinnnnda hard way to much shock...

 

I noticed it a handful of times as well and changed the timing of my shifts slightly and haven't had it since. Either what I did work or it fixed itself. When you floor the gas, don't try to shove the pedal through the firewall with all your might. That MAY be what is causing the throttle to hang a little, but I'm no expert on the problem and I don't know how you drive either.

 

Does'nt happen anymore since I replaced my clutch and flywheel. Went with a 10.5lb flywheel from Gruppe S and clutch is a ACT HDSS

 

A lighter fly will obviously lose RPM faster than the stocker. That is my diagnosis