^^what Bogg said. Did you get another tune already?

 

todd and protomotive ! the only way to fly .... lol

 

haven't done another tune yet.

 

May i ask you this question, why you don't let the TPS guys do the tune for you?

 

there is no reason why I wouldn't let TPC do the tune. They actually feel the car is running great right now and there is not a whole lot i'm leaving on the table.

 

Not sure how that can be? How can upgraded turbos and IC's not benefit from a more aggressive map?

 

^^^ It is curious how your upgraded turbos are responding to a non-upgraded turbo flash. Are you able to actually hit and sustain max boost? Seems odd.

 

That's how you blow a head gasket

 

Yikes What causes that?

 

Lean condition from running big turbos on a stock map. Bigger turbo puses more this needs more fuel. Otherwise it's kaboom

 

I would have guessed just the opposite since the upgraded turbos wouldn't be able to produce the requisite boost causing the motor to run rich.

 

Look
My car at stock Porsche boost is doing 750rwhp. And that's at .8 bar. So boost has nothing to do with it. Bigger turbo pushes more air but is also laggier. More volume needs more fuel. And if you follow ur logic then a smaller turbo will run the car lean?
Bottom line is you never swap turbos without proper tuning and other components. This is as basic as it gets.
You never install software that is not supported by the operating system right? Same idea here.

 

tic toc tic toc ......boom.

 

I think you're scaring him for no reason. No one will disagree that bigger turbos are capable of pushing more air but his turbos are the same size, just upgraded in the compressor wheel. Plus it's a vtg turbo which depends on how the vanes are map. If he is running a program that is meant for stock turbo, then his upgraded turbo will deliver less air volume not more. You could have a little turbo, making 1 bar, but having 2.5 bar backpressure in the exhaust, and being at the edge of it’s compressor map making barely 55% compressor efficiency with a restrictive catalyst, etc... It might be feeling pretty good making 400hp, then you put a big gt35r on there, run 0.8 bar, have only .5 bar backpressure, no cats, hitting 85% compressor efficiency right in the heart of where it’s happy and make 750rwhp as your car does. Of course this all depends on the right programming. While I think we all agree he should get a proper tune to match the upgraded turbos, blowing a head gasket is not one of them.

 

I wasn't aware that he just upgraded the compressor wheel. The discussion seemed to be "bigger turbos ". I was thinking in terms of a big turbo on a stock ecu.
There are 2 companies that upgrade the wheels, both with whom I do same business, I know what goes in the upgrade.
We are wasting time and energy. This person should get a proper tune period.


Going back to my software/ operating system example. Sure some programs will work even though they are not tested on xxx operating system. But most of them end up crashing and or locking up
Just my opinion.