earlier in this forum, 14Feb13 (evo X dyno results) I posted a scan of English Racing's dyno plot of the stock turbo with bolt-ons and meth on and the thread is called: EvoX stock turbo, bolt-ons, meth inj

 

 

Dynos can read significantly different. Proof (20% in this case):

 

Do we know for sure the FPBlack MR is running at full potential, ie no boost leak etc? Because I know a stock cam/stock manifold bolt on X with JB Green makes 350-360whp on Rocket Rally's "low reading" Dyno Dynamic with our crap 94 octane in BC as well.

 

Definately not the full potential of the turbo, but it was at the knock threshold for 20psi. Haven't found Rocket Rally's dyno to read low. All the customers that come here from RR make way lower #'s here.

 

Not bad

 

Should see if either car can come down to Washington for some runs on either English Racing's or Drift Office's dynojet. Would be interesting to compare the dyno results.

 

Hi my car is the one with the 7670. I have had mine on English's dyno, but before I had the 7670 istalled.

 

Interesting post....
You compare very well FP Black and BW EFR 7670.
I think both are so good and have their own valuable features. thanks for sharing.

 

Tariq -

For comparison to a stock turbo X on your dyno... in 2009 my X was tuned to ~310whp and ~280wtq on stock turbo with a ****load of methanol added to the mix. The car baselined at ~180whp.

There's a video of it on youtube shooting flames everywhere after the tune. Tommy will remember the car!

I'd have to agree with a few people on here - that FP Black set up sounds like it should be pushing a lot more power.

 

Fact: on the same dyno, the car with the EFR put down about 395whp and the FP Black put down about 335whp.

What number would you like to see from the car with the FP Black? 400whp? That would be about right for the mods on the car on 92 octane on a typical dynojet. Fine, go stick the car on a dyno where it reads 400whp. Guess what, the car with the EFR will read about 470whp.

 

This is a stupid comparison of different cars and different transmissions as well as gear ratios.

 

since there aren't too many threads about EFR turbos on pump, i'll just refer RT/Ernie's 7670 (red line)



his car is exceptionally well built and made 450whp with a built 2.2, ported head, S3s, Magnus etc on 91 octane on a real dynojet. i highly doubt a stock head/stock cam X will make "470" translational whp (on Canadian "94" octane that's actually worse than American 92)

the very fact that the FP Black is hitting knock threshold at only 20psi should raise a huge red flag that it's not running at full potential. i have 2 friends that run FP Blacks up here in Edmonton, AB (2200ft above sealevel) that's doing 26psi on stockblock running the same crappy "94 octane" so it has nothing to do with the stock frame turbine housing.

i might sound like i'm defending FP turbos, but if given the chance i'd go straight to a T4 TS 8374 in a heart beat so no, i'm no biased at all. i just don't feel this is a proper comparison.

 

Okay, so what do you think would make it a 'proper comparison'? Same fuel and same dyno seems realistically fair enough to me (only way to be more 'proper' would be to test one directly after the other).

FYI, on RRE's dynapak, a modded Evo X with upgraded turbo went from 400whp on Cali 91 octane to 500whp on E85. From general observation, 93 octane falls in the middle, so would probably be around 450whp.

On my nearly stock Evo 8 (just a 3" downpipe and K&N filter, still stock cat, exhaust, etc), going from 91 to 93 octane gained me about 25whp.

Put PR/Ernie's setup on 93 octane and I bet it gets close to 500whp.

Beeble in Australia with his 2.2L build, AMS kit, GTX3576 made right at 500whp using Virtual Dyno on Aussie 93 octane pump fuel. So a similar build to RT/Ernie.

 

I completely understand where that dyno reads - hence why I posted my personal results, on that exact same dyno. The fact is that my car, running a stock turbo, 4 years ago made ~310whp. That was on a 94 tune with a huge amount of methanol being pushed.

The guys from RG know what they're doing, even Tariq on here agrees the car isn't running to its full potential due to knock and 20 psi.

No need to start a pissing match when I wasn't knocking anything. I was actually agreeing with the OP and throwing in a stock MR turbo comparison as a few people noted the comparison between the two cars may not be valid due to the MR GSR variance.