Uhmm...my friend told me that the Evo is puttin out 19 psi of boost from their turbos which is risky because the car can only handle 21 psi of boost. He said they should be creating more hp that 271 and the STi is not even puttin out that much. Is this true?

 

Not true. The motor can handle 21, no problem. With a little tuning of the fuel and spark you can get that 271 close to 300 (at flywheel). The Sti I believe is 300 at the flywheel. Look around on here though, there are a bunch of people over 300 at the wheels with very little modification overall.

PM me if you are in South Jersey.

 

Yup... EVO only hits 19 psi very briefly at midrange.. then tapers
to some 16psi at redline... on top of that... EVO's high rpm also
runs very rich... By maintaining 19psi and lean out slightly near
redline... EVO should achieve 300hp easily.

 

Anyone, Anyone?

Reason I was asking is because I'm scouting out a few possibilities as far as finding some possible turbo upgrades for the SRT-4 since we too have a reverse flow mitsi turbo.

FYI- The TD05RA-15GK2-10.5T (GSR) / E6) will be the turbo that is used in the Mopar Stage III performance upgrade.

 

Does anyone know why they never made the compresor out of TI?

 

Does any one know what the max PSI the turbo can take? And also what can the engine take boost wise.

 

Though the titanium turbine assembly offers lower rotational mass there have been some durability concerns raised. The earlier spool up was probably deemed too risky for the very “consumer rights aware” US market.

 

Im not sure but it may have something to do with the properties of titanium. Its a very very strong metal, but its relatively softs. Good steel will hold an edge better then titanium. Maybe a thin compressor blade will begin to lose its edge from impact with tiny particles.

 

Maybe ur right about the soft metal thing. But if they use it for the turbine and that spins just as fast and hits as many particles. I dont' know, but thanx for the reply.

 

I don’t recall that the problem was ablation of the turbine blades. I seem to remember reading of cases of shaft shear. There is a story of someone finding his lovely titanium exhaust side turbine on the track after a run. Seems it fell out of the tail pipe when it broke.

 

the turbine blades are much much thicker then your15-30 thou think compressor blade.

but just an idea.

 

the turbo can take max boost of 22 PSI with almost perfect tun- ning no higher than that. The good news is that evo engine is bullet proof iron block and so on, it can handle up to 30 psi with stock internals and head. however, i wont push that kinda boost on high RPM but i will push it on mid rang. to proof that search on the net, many people did it.

 

Yea, I guess they are thicker, I'll take that as my reason until I hear otherwise, I mean, it makes sense and all.

 

well, don't tell me that as truth, lol

 

Does anyone have a compressor flow map for the EVOIII trubo? I've been searching the web and this forum for about 3 hours now with no luck.

Any help would be great!

Thanks.