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I dont have an afc to tune with but have an adjustable resistor hooked up to the iat, fooling the ecu of the actual temp, which in turn dumps more fuel. Also have a holley 255 fuel pump. Just finishing a rebuild and blocked off the egr. Anyone have this type of setup to know if it will work...

So if it doesn't know you disabled it, when it thinks it is open, it will dump more fuel to compensate. I thought less fuel more oxygen caused detonation not more fuel.

So your saying when the EGR is active, the ecu advances the timing to make up for the loss of fuel. So when its not active or blocked off, there is more fuel. So my question is, how can disabling it cause detonation?

I'm rebuilding my engine too and I have the whole system you can buy if you want. Since its worth at least a hundred, I'll sell it for $75. Let me know

The timing being off 2 degrees would not make that happen. I hate to say it, but sounds like detenation. Might have to move up to the 550's. Try lowering your boost down and if it stops, you know that's the problem

Thanks, I'll give it a try

My passenger side window has a mind of its own. Seems to work only when it feels like it. Anyone experienced this before?

My hatch used to leak also but it was coming from the rear tail lights. I used roof tar in a caulking tube and sealed them and havn't had a problem since. Got my lamp failure sensor off ebay for 15 bucks.

Ok, thanks for all the help! Looks like you had another late night!

I'm not seeing positive pressure until 3900 so I'm thinking the wastegate has a small leak. I appreciate you sharing your stats, helps me to realize that the lag isn't coming from just a bigger exhaust housing. BTW, what is mani pressure?

Just curious to see if anyone had the same turbo and has the same issue with lag but looks like I might have some other issue going on. Seems like I'm the only one starting to spool at 4000 rpms. Checked out the quick spool valve and one of the specifications was to have an undivided manifold so...

I have a 50mm external wastegate and a stainless t4 manifold, full 3" catless exhaust. Start boosting around 3900 rpms and full boost around 5000. Had a t3/t4 turbo before and I know it naturally boost a lot quicker but almost 4000 rpms before boosting now seems a little ridiculous. Just became...

Recently finished installing a dual bb gt35 with .82 AR exhaust housing. Anyone else have this turbo in their car? I'm having some serious lag issues.