I have come across an offer to trade my Work Emotion w/tires for a barely used Tomei 7760 and have been doing some fervent research on this particular turbo. One piece of information that I can't seem to find is this:

Would having higher boost at low rpm's better than having higher boost at higher rpm's? I'm talking in context of long-term engine life because I'm a college student with student loans so just trying to look out for my future. I don't want my gaskets blowing up at 50k miles, currently at 30k on a 2005 wrx.



The tomei seems to create most of its power in the earlier rpm's, which I would suspect means bigger combustion in the lower rpm's. Were the lower rpm's ever meant for that type of high temperature combustion or is that only safe for the higher rpm range when the engine is already in high temperature.

Spooling early sounds really intriguing to me because I'm a tq guy more than hp, but never have upgraded a turbo before so just not sure.

Thanks,
Kevin

 

Is that basically a 20g?

 

-Spools faster
-less upper end power

 

all the tests i saw didnt show it spooling any faster than a td05-20g. maybe a couple hundred rpm faster than my td06.

think of it like this,the turbo will make the same power on less boost which means easier on the motor.

personally for the money theres better deals out there.

 

Same power on less boost, that's what I thought. But, it's actually more boost. Less boost in upper rpm's, but more in the lower. So my question is, is it better to have more boost in lower or higher rpm's?

 

Isn't this going to spool slower than stock? Stage 2 on a stock turbo spools pretty damn quick.

Found a little info from Tomei themselves, not sure if it'll be useful. The turbo specs as compared to a VF39 are in there.

http://www.tomei-p.co.jp/news/Report-EJ25-V1.html

 

Engines are more prone to knocking at low rpm. So more boost down low can be dangerous.
Its not about combustion temperature, but more of how fast can you burn the mixture.

 

That turbo is mad tyte jdm yo.

Should be a good turbo. I don't see how hitting boost sooner would be an issue other than having quicker response. I personally prefer the kick down low vs the up top power.

 

How low are we talking about? 2k rpms? that would be sweet =D