Had a customer come in today for a retune after bolting on a FPwhite.

I've tuned this car a bunch of times with different turbos and setups so I know the car pretty well.

The last tune was with a stock 9 turbo back on the car. Which is perfect so we could see just what a FPwhite does in comparison to a stock 9 turbo, with a more "real world" setup.

Before I post the graphs and mods, I want to point out that this 9 made power in-line with all the other local Evo 9's with the same point of mod level. Meaning it's a perfectly healthy example of what kind of numbers, with the same type of mods, other Evo 9's put down on this dyno. We have a low reading Mustang dyno and also beautiful 91 octane.

That said, Please do not turn this post into a dyno battle thread.

2005 Evo 9

Mod List:

FPwhite (replaced a stock 9 turbo)
GSC S1 cams
RC 750cc injectors
Walboro Fuel Pump
ETS intake kit
Ported exhaust manifold
ETS intercooler pipes
ETS 3" FMIC
TBE with no cat 3"
Titek tubular 02 housing
Sun Hyperforce ignition box
GM 3 port boost solenoid using Ecu-controlled boost
Stock ECU
Stock Head
Stock shortblock

On to the graphs, I tuned the car to as close as possible, the same boost, AFR and timing as with the stock 9 turbo to get a true A to B comparison.

91 octane

Dotted lines are the stock 9 turbo, Solid lines are the FPwhite



91 octane boost

Dotted lines are the stock 9 turbo, Solid lines are the FPwhite



100 octane

Dotted lines are the stock 9 turbo, Solid lines are the FPwhite



100 octane boost

Dotted lines are the stock 9 turbo, Solid lines are the FPwhite



As you can see with both examples, the FPwhite trailed behind in power and torque to the stock 9 turbo until around 6500, where the FPwhite gained a tad. Again, boost is as close as possible between the two, with the exception the FPwhite which ran a tad more boost up top on both tunes. AFR's are the same between the two turbos and Timing is as close as possible, I had to run about 1* less up top with the FPwhite because of a tad more airflow.

So that said, lets take a look at some data:


91 octane, Load, Airflow, Lbs/min, IDC between the two turbos:



As you can see, everything is pretty close between the turbos until 6800 or so where the FPwhite has more airflow, lbs/min/ and load. Also notice a tad more from 3500 to 4500 rpm as well, both these areas are where the FPwhite ran a tad more boost than the stock 9 turbo.

100 octane, Load, Airflow, Lbs/min, IDC between the two turbos:



Same observations as 91 octane, expect the FPwhite just gains a bit up top where it ran a little more boost than the stock 9 turbo.

 

interesting!

 

Interesting results, thanks Bryan. Were ambient conditions similar for each turbo?

 

About 12-15F different intake temps according to the data logs

 

wow im pretty surprised by these results, very interesting.

 

So..................it looks like the white was a waste of $600.

Or am I not reading something correctly?

Jason

 

Dang that's disappointing!

 

*cough* Flop *cough*

 

exactly what im thinking...to me the white looks pointless to this graph.
If anything this turbo was ment to spool up quick and gain power quick...to this graph it seems like it makes a tiny bit more power well above 6000rpm which does not add up to the loss through out the rest of the power band.

 

This makes me wonder what the RED will do. I wanna see the RED on a car with similar mods to this one.

thanks Razorlab for the thread. Mayb some others will have better success with the White.

 

not happy with this

 

exactly what i was thinking...im hoping the red won't be this dissapointing.
But then again the red made 530whp but that was at 38psi.
It almost seems like the green is gonna be the only one left standing.

 

what a hugh disappointment.. glad i didnt jump the gun on this turbo.

 

Great post, it's good to see these results come forward from cars running average mods and not fully built setups.

 

To be fair, this is only one example so far. Maybe the turbo wasn't 100%.

One of the things I noticed, and you can see in the airflow and load plots, is that the FPwhite would "surge", "Flutter" whatever you want to call it a bit right at peak boost. The stock turbo did this a little too,which I also contribute a little to the intake, but the FPwhite did it much more, as you can see with the datalog overlays.