The TD04 RA turbo is *much* smaller then the TD05 Evo 10 turbo. It's also single scroll instead of dual scroll like the Evo 10.

Lots of good info logged in this thread I started over a year ago:

https://www.evolutionm.net/forums/09...ns-o-data.html

The stock Evo 10 turbo logs approx 41-43 lb/min depending on mods and tune.

The stock RA turbo logs approx 31-33lb/min depending on mods and tune.

So approx 10 lb/min more with the Evo 10 turbo...

 

So, the S-Sport mode is only in the ECU? What would it take to program such a thing into a Ralliart ECU? Have you figured out where this piece of software is yet?

 

correct, the ra has a tod04...

if my "deal" works out.. on a salvaged ra, i would upgrade it .. the question is to what..
currently thinking a evo x manifold and a 20g (or fp-red) -- depending on the web site seems that's a 44-49lb-min, flash, injectors, dump exhaust.. and that should do it.. for 300+ whp
(i love the SRT-4, fast/cheap/easy mod... traction is a serous issue 350-400whp in 1-3rd gear)

 

the tcu controls lunch control i guy in a other forum blow up his sst and the got a mr one from the wreckers put it in now he has lunch control and we do have the same crank as the evo