Guys,
We finally got our dyno back up and running today, thanks to a replacement cable from Dynapack, so we decided to put the EVO up on the dyno and see what we get out of the current combo of parts.

Our car is still in very simple trim; it runs the following parts.

TurboXS turbo back exhaust system with race pipe
TurboXS prototype intake
TurboXS RBV-H34 bypass valve
TurboXS UTEC

Here are the plots from today’s runs.


The lowest run is our highest bone stock dyno pull on our EVO 8. In stock form it produced 246.9hp and 262.4ft/lbs.

The middle run is where we left our 93-octane map. We typically are pretty conservative on pump gas when we know we are going to be pushing race fuel in the same dyno session. This map topped out at 295whp and about 290ft/lbs.

The top run is our C16 race fuel runs. Here is where we push the car. The C16 maps hit 340whp and 315ft/lbs. This represents a gain of 96whp and 53ft/lbs for about $2400 retail. Of course for you guys you'd have to add the cost of race fuel and dyno time, but as the bang for the buck numbers are VERY impressive.

Here are the boost charts


As you can see peak boost is a spike to 22psi. The car holds 20psi to redline using the UTEC’s closed loop boost control with the ABC installed. We did not add the optional 4mm boost line, but will do so soon, because this was about all we could get out of the system as it was configured. The boost map is the same for the pump gas and race gas maps. The HP gains were purely from ignition timing and fuelling adjustments.

The pump gas map was tuned right around 11.8:1 and the race fuel map is right at 12.2:1AFR. We ran a total of about 18 degrees of ignition timing on the pump fuel map vs. the 22-23 degrees we were running with the C16.

The state of tune for this level of modifications is very impressive and the ability to switch between the race map and the pump map at the flick of a switch should put a smile on anyone’s face. Now we just have to get the clutch in it and take it to the track.

Then it’s time for another round of modifications.
-Nathan
www.turboxs.com

 

Umm, yes please.... I want the map Also the H34 has no hesitation or stumbling problems?

 

Good numbers for such few mods, I am starting to sway and I am thinking of getting the UTEC.

 

does your H34 give you any problems?

 

No problems what so ever.... If it did we wouldn't recommed it for the EVO.

We are pretty straight forward if our products don't yield above exceptional performance.

At any rate 34x was our stopping point. I didn't think we needed to go any farther. The early torque is so enjoyable.

Jermaine@turboxs.com
www.turboxs.com

 

Very Nice, That exhaust of yours makes really good power and is not loud. You guys should rename it to JABLTS (just a bit louder then Stock).

Have you tried pull a little timing during spool to increase the exhaust temps?? I don't do a full degree.

Eric

 

The key is to get the EGTs up as quickly as possible. I prefer to do this mostly by keeping the AFR lean. A little bit of timing retard can help, but unless you pull a bunch you'll get better results from keeping the AFR in check.

-Nathan
www.turboxs.com

 

yea, I was wondering that also...I heared about yours and I have the Forge and I get a bit of studdering or somthing like a chargeback at mild throttle.....

-shahul