Hello All,

I recently converted over to E70, and I have to tell you my IX pulls like a raped monkey. I HAVE to keep both hands on the wheel in first to stay in control. It is sick.

Anyway there is one problem at wot, high load, 4-6 gear, 2500-4000 rpm, I have what my knowlegable friend says is compressor surge. I was wondering if anyone else has that issue? I have troubleshot everything bov, spark plugs, boost leaks. My friend says that the e70 is forcing the turbo to spool too soon. So how do I get rid of it, tune it out, buy cams, ported hotside. My goal of the car was to have stock drivability

 

Can you post a log or a video clip of it? Here's a You tube clip you can watch. If it is surge there are a few things you can do.
One is not to bog the engine. Two turn the boost down. Three add timing to help the engine accelerate into boost. Four a stiff sprung BOV can cause it. Are you sure your not tripping a fuel cut?
http://www.youtube.com/watch?v=LZUbo_mNDZM

 

Thanks for trying to help. I will try and do a video tommorow. Fuel cut I never thought of cuz I have 1000cc injectors, do you think fuel cut is possible with that size of injector and the stock turbo?

 

Are you flashed for higher boost? I have my boost cut delay timer set to the maximum value. Anytime you over boost it trips the fuel cut timer.

 

I am self tuned so their is a possibility that I did overlook something. Are you refering to Boost Limit?

 

No not boost limit. I was looking for the Boost cut delay timer for the IX but I don't see it in Ecu flash. It's in the older roms 05 and down. You might have to post in EcuFlash forum to find out. Maybe it's hidden or they did away with it. I will do some searching and see what I can find out.

 

What is you boost limit set at and what is your maximum load scaled to?

 

My boost limit is set to 319 and I hit load cells of 320-340, which seems like a problem to me, but I dont know how to fix it

 

You need to check your load tables and see what the maximum load is set for. You may have to rescale for more load or turn the boost down. I hope your not on the stock fuel pump. If you post whats going on with your car in the EcuFlash forums your going to get a lot more help. Here is a link for rescaling load.
https://www.evolutionm.net/forums/sh...t=rescale+load

 

Not on the stock fuel pump and definately rescaled the the load on the fuel and ignition just cant do it on boost limit. Thank though for taking the time.

 

You can up your "Boost Cut Delay Timer" to a high ms number and that will effectively turn boost cut off.