if you gave a crap about roas racing and cared about response wouldnt be using crappy single scroll turbo

stock framw turbo hit their peak from around 09 to 11

 

Agree on your first point.

I disagree with the bolded. If you have a good MHI turbine housing, FP will build a true stock frame for you still. The new HTZ red is an AWESOME turbo, 61lb/min compressor shoved in the stock housing. 20psi at 4k rpm, 32psi at 4500rpm on my Evo 8 with GSC S2's. And its super responsive.

 

I am having two mhi turbo being built at fp.

61/ min red is basicly an fp black....



my fp black on my 2.3 was hitting 35-36 psi around 4400 rpm...on the 73hta it was hitting peak boost around 3800 dumped those small turbo and moved on to t3 though

 

I accidentally added too much wgdc on my car, once. It made 36psi at 4400. This is on a 2.0L. I wouldn't call it a small turbo. More like a fast spooling/responsive turbo. I have no need for a 3586 that will spool 500-600 rpm's slower, and will make too much power on a 25psi road course tune.

 

What C/R does your engine have ?

 

My engine is stock internally except the GSC S2's and GSC valve springs.

 

My reply was directed towards a lack of time slips from the drag strip. As for your post, response is key in road racing. We don't really care what our peak WHP is, so I agree with the first part of your post.
I'm not quite sure what you mean in the second part.

 

I will be able to add some 1/4mile time slips and traps with this setup. I will have to report back.

 

Actually the evo community does plenty of racing compared to most other car platforms. If you want to talk about dyno queens go check out some of the bmw forums (n54/n55 guys in particular).

 

Not an FP turbo but my Blouch Dominator 1.0xtr on my Evo 8 with stock 86k mile block, stock head bolts, S2 cams and pump 93 fuel made 440 whp and 370 tq at 27.5-26 psi. I see 27 psi by 3800 rpm with the MHI housing. GREAT pump gas street setup.

 

I had the car tuned a bit ago and it did 430/400 at 28psi on a mustang dyno. I was hoping for a little more as they said the red usually makes about 450 on their dyno but we didn’t push it super hard. He said It seemed a little out of its efficiently range and could either be a small boost leak or compression or something else. (checked compression and its at 170 + or - 2 across and tested up to 25psi till my blt kept blowing off) He compared it to another red setup with close to the same mods and mine spooled a little slower and didn’t make quite the same power at the same boost. But the car runs great and smooth here is the sheet. Guy I got the turbo from sent me a vd sheet at over 500 at 30 psi. Ill have to take it to the track and get a trap time.

 

Torque peaks, and then falls off really hard. The red flows enough air that you should have a decently flat torque curve out to 6500rpm. What cams are in it? If aftermarket cams, did you upgrade valve springs with them?

 

Got brand new kelford 272's and kiggley street springs.

 

Could the torque issue be from the exhaust manifold we made? Or is the turbo getting lazy as I got it used. It is nice and tight. It's 1.25 twinscroll every transition is very smooth and close to equal length

 

This is my car on a mustang dyno. 32psi, tapering to 27 out the top is the high line, was 455whp, and 390wtq.


Granted, these are all mustang dyno results, so who know what they actually mean