Hi guys im new on here from Tasmania (australia) and VERY new to the world of EVO's..... Traded my LS1 V8 on a jspec evo7 yesterday....

LOVING IT! Although I am experiencing 1 problem

When it winds up and gets over 5000rpm and I go to shift the throttle sticks and takes it straight to the limiter!!!

Now it doesnt do it below 5000 rpm and it doesnt do it without the engine running and the cable and spring on the t/b seem to both be fine and the spring is returning the way it should be....

Just wondering if anyone had heard of or experienced this...? Cause it had me a tad worried as its my 1st import and my 1st turbo car!!!

 

this happens on my car to...do you have a bov on your car?

 

How is the clutch on the car?
Any idea what kind or how many miles on it..
Does it stay when it revs or does it just go to the rev limiter and then fall.
Sounds like the clutch or the cable is binding somewhere at high rpms.
plz give more details.

 

Cltuch seems fine...it has an exceedy organic h/duty from what i was told from the previous owner..
Stock HKS BOV...?
Goes to the limiter and falls again.....

 

To be honest, it kinda sounds like the clutch if it goes up and then falls again..
Does it do it in every gear, once you hit 5k.

If it went up and stayed, it would be the cable binding..

Is the HKS bov recirculated or "VTA" -Vented to atmosphere..

 

Havent had the chance to really test it out to see if its every gear although it did do it in 2/3/4 yesterday....It kinda goes up hits the limiter....stays then drops again...Really strange.

I wouldnt have a clue about the bov either mate...never owned a turbo before.

 

It could be in the tune --- can you have a tuner check out your ROM?

We got some funky throttle issues when we messed with the idle tables.

 

ROM? Help hahhaha im new to this guys!! hahahahaa if its not LS1 i dont know crap about it. Whats the ROM?

 

my hks is vented to atmosphere and it my car has the same problem it started a few months after the bov was installed and during the cold weather im thinking that in my case my bov is getting stuck and i need to grease it cuz the revs shoot up to rev limiter then i hear my bov go off so i think its either sticking or needs to get tuned...im gonna try greasing it soon cuz that really seems to bethe problem.

 

It's the current fuel and timing tables that your car's computer is referring too when you go through the revs. Chances are, if your car was modified at all, or if the tables were enhanced to provide more power through the car's ECU --- then the tuner could have inadvertently altered something causing your throttle hang.

Are there any Evo tuners in your area? I'd start with a call to one of them.

 

If you look at the BOV, is there a hose going back into the intake, or is it just coming out of the upper Intercooler pipe and thats it..
If there is a hose going back to intake it's Recirculated...
If not it is VTA..

Sounds like the clutch to me..
How much HP you got, and how many miles on the Clutch?
Typical clutch going bad, is it's revving to a high rpm when you press clutch pedal and then falling at gear change.

Do you have a video cam..
That would help alot..
If so, go video the rpm guage while it's doing it..

 

if mine doesnt go away from greasing it im just gonna go get it tuned im in need for one anyway just waiting for some goodies.

 

Someone with a very similar problem recently posted a thread : https://www.evolutionm.net/forums/ev...s-5500rpm.html

It turned out that there was a styrofoam packing peanut stuck in the throttle body:

So you might want to take off your throttle body to see if anything is getting caught.

 

check the throttle plate screws as well once you take the upper IC pipe off. Mine did the same and come to find out my plate was getting stuck open cause the plate was loose. like others said it could also be tuning for the throttle hang

 

Sounds good guys thanks for all your help!! I'll go pull the IC intake pipe off and have a look!! I'll be back!!