Sure, but pushing that kind of hp and torque you also need to look at rods and pistons or you roll the dice.

Can't speak for Cobb, but they have a reputation to protect and they have to make sure their package works on all kinds of customer cars in all kinds of climatic conditions. Seems they have it just right.

 

good numbers

 

I don't think that's necessary for any amount of power that you can create on the stock turbo. Gates is up to 10k track miles with power in the mid 500's. You need a competent tuner, to be sure.

The handful of failures were over 600hp, ran to 8500 rpm on stock springs, had a meth system failure, or were self-tuned. I haven't heard of a rod failure when run on E85 (or race gas) with a professional tune on the stock turbo. I've seen a couple posts of pistons overheating and chipping but the suspicion was that was due to faulty fuel pump relays, a problem that we've known about for a while.

I'm personally doing drop-ins soon but I'm heading over 500hp.

 

Yeah, but not a big sampling over a long time to make any definitive analysis on that IMO. If you have deep pockets or a sponsor, no problem.

 

Of course not! I have a failsafe which would put the boost back to stock and save the motor.

 

Well, with E85 you have pre-mixed meth and gas and you carry it with you all the time in the gas tank

If you do run out and have only gas available, you can plug in the AP and switch maps, < 45 secs, and you're good to go

 

I agree, which is why I consider your 'roll the dice' comment a bit premature. The 4G93 is good into the 400's so there's no reason to assume this motor is less strong...evidence has been suggesting that it is stronger.

I'm upgrading mine because I only have semi-deep pockets. Buying a new block would hurt. haha.

 

Maybe it's premature, but if you are on the bleeding edge, chances are good that you will bleed sometimes. For most of us the wait and see approach is less risky. Be sure to post your progression

 

I know the sales pitch.

What I do like about the meth setup is that I don't have to worry about lugging around a laptop that could potentially get stolen (my own car has been broken into 4X since owning it). And on hot days, my meth will serve as a secondary heat exchanger since it's mixing with the hot air. Lastly, if I do run out of meth, I just have to drive the car without boosting too high and can still get from point A to point B on regular pump gas.

 

Looks like the E85 and MIVEC combo spooled quicker and made more power than the meth until about 4,000 rpm. Do you have a bigger turbo?