Thanks, J! The larger HTA comp wheel makes sense. Does it have the same turbine wheel as the Green then?

GrocMax did indeed post that info. Acute Dementia is to blame for my forgetting it.

 

Turbine is larger than Green as well.

 

It looked bigger in the pics posted in the 9sec9.OKIX round two thread, but I didn't want to say anything bc I wasn't sure and I definitely don't have numbers to back it up.

 

Looks good. Im debating on a green or red now.....

 

I have been running the Green on my Evo for quite some time. Now I want more. So, I am seriously considering switching to the FP Red. It(the Red) is a big step up in power delivery according to the earliest tests on heavily modded Evos.

However, I'll hold off until Razorlab has a chance to tune a standard mods, Red-equipped, Evo VIII on, 91 octane, through the stock MAF/ECU. Specifically, I want his take on how real world Red spoolup compares to that of the Greens he's tuned at GST.

 

Here's some data for those of you inclined to 'chew' on it. First of all, this Green pull was made on the Buschur Racing Dyno on Nov 27,2007 during my cam testing. Of critical note is the air intake temps. The FP-RED data came from the same dyno during ONE OF THE RECENT DYNO RUNS. It wasn't necessarily the final, since we were constantly making changes to boost and David was making changes to the tune as well. This may have been the 540whp run, not the final 530whp.mI guess I'm going to have to qualify everything I say from now on. If you aren't interested in Race Gas comparisons, no sense in reading any further. This was using a maximum of 37 psi on the Green and a 39.x psi run on the RED. Still, I thought some of you might be interested in comparing the temp,boost,rpm numbers. I took the time to type the data into a file and used RPMS within at least 10 rpms of each other, most closer than that. Also, as you know, the FP-RED used an intake manifold that was designed to spool up to 700 rpms later. We haven't gotten exact measurements, since we didn't dyno the exact same turbo using it, but I feel it's going to be close. Take that into consideration on the RPMvsBOOST data. Still, interesting to look at . Up to 52 degree difference in temps and Garrett has an RPM correction of 1.06 on turbo rpm, so actually, the RED's corrected RPM would be 6500 RPMS less than we observed. Sorry about the quality of the pics, but I took it from logs to xls to text to paint to crap in one easy move.

 

seems pretty laggy, but the intake manifold had to be part of the lag

 

Lag isn't an issue to us for racing, at least not at this level. We built the manifold for our own use and it's purpose. On a normal ported manifold, I would expect at least 600-700 rpm sooner peak torque.

 

If the intake really causes spool to come up 700 rpms later.....the two should spool at about the same time with the same manifold. I'm afraid this would probably fall under the "too good to be true" category......still the red is looking very impressive.

 

We have no real way of knowing the true spool on a stock manifold. When the manifold was designed, it was built assuming a turbo that would spool at 4750 - 4850RPM's. We may have projected it a little low, but even then, it was a total unknown.

 

Of the 15 already sold, has anyone bolted it up and tested it?

 

Thanks for the data 9sec9, the 32psi at 7k on the Red has me excited.

 

wow Tom, thanks for sharing all that info. Big help.

 

razorlab, jbrown..you're both welcome. I've been studying all of the logs on both the White and the Red. I think my earlier feellings of the White are actually going to prove to be accurate. The time-to-rpm is very strong. I've measured 3000-7500, 6000-7500, 6500-8000 and a few others on multiple pulls. I just wish I had stock logs to compare this data to. As far as the red, the boost IS promising. If I were to guess as to the spool difference in my Wilson vs Stock ported, I think we're going to be close. We hit peak at 5000, so I would expect the stock ported to hit maybe 4500 or so. That's just a swag though.

 

One last thing. The Green psi may have been around 36.5 instead of 37.3, since the 2byte loads were usually maxed at least for a while on the 37.3 runs. Also, during a few of the runs, the Green hit UNUSUALLY quick spool, as evidenced in this one at 3750. I remember one of them hit it at 3680 I believe. In summary, these numbers compare possibly a Green that spooled as fast as any I've seen and the RED, which is using a higher end manifold. Still, something can be extracted from the data.