George@Revo Technik

Hello all. I just wanted to let you know, we will be releasing our 'race' file for the 996 GT3 shortly. If you are a club racer or a frequent DE participant, this new programming will be well suited to those driving scenarios. Like all Revo Technik programming, after your day is done, simply switch the program back to stock and drive home.
This tuning is based on and intended for 104 Octane fuel or better. If you are interested in purchasing our software, please contact your local Revo Technik dealer or visit www.revotechnik.com to find a dealer near you.

Z06

I can not make out the chart.. could you please post the a number chart..not the graph as above...stock vs. 104
do you change the 8200 rpm limiter?

that's 104 octane...not 94 or 100?
if you could email that would be great..

RJFabCab

George,

Are you a Rennlist sponsor?

GT3 Chuck

oops!

Laura

Yes, REVOTechnic sponsors the 997 board.

9Eleven

Can it run on 93 octane and if so, what will the hp numbers be?

George@Revo Technik

Yes we are. We're a banner advertiser as well as the 997 forum sponsor. Thank you for asking.

I do not have the point by point data plot at the moment so I've posted a larger graph that may be easier to read. I've also posted a graph of the same carw with our standard 'Stage-1' file. That graph is ploted agains the stock car. The fuel used on this dyno is 104 octane. This car is running a stock exhaust and intake. The rev limiter has been left stock at this time.

Z06

George,
We see alot of flywheel dynos but it's difficult to see what the gains are..the above charts show a stock car with 380 HP and the other chart shows it with 400 HP...we all believe the GT3 is at or above the 400 HP mark stock.. some rwhp results are 355-380...the higher number seems to come on cars with some miles when tested.

with a chassis dyno we can compare the gains to the general rwhp we have seen with the US cars posted on this forum.

I would think that if you could get them in the 390+rwhp, corrected range there would be something to look at.

How about a corrected chassis dyno graph..rwhp?

GT3 Chuck

George, those are good numbers...is that the SPS-2? Are you located in SLO?

RJFabCab

George, I was just ribbin' ya... hence the " " in my post.

Z06 brings up some good questions regarding the stock car's numbers. Was 104 fuel used in both graphs? Why the difference in the gears between the 2 graphs (4th vs 3rd)?

BTW, I heard good things about your programs when I was in Tejas...

George@Revo Technik

No worries. I know you were... 104 Octane was not used in the 404 graph but the tuning between the two is completely different. As for the gear difference, I couldn't say why there is a discrepancy there. To be honest I didn't notice until you pointed it out.

The 404hp chart is plotted against stock hp which you can see is on track for the factory HP rating of 383. The 422hp chart is plotted against the previous 404hp run. I suppose we could plot the 'race' file (422hp) against the stock run for a clearer comparison. As I'm sure you know, HP is merely a calculation of torque. The Dyno Dynamics Dyno we use can display corrected wheel horsepower but the default mode, the mode most D³ users implement, is flywheel horsepower, which incidentally is the figure Porsche quotes as well.

I'm sure you'll agree, particularly from a tuners standpoint, flywheel numbers have a certain marketability associated with them. If you calculate an industry standard 12.5% driveline loss , RWHP on the 'race' file is approximately 370 compared to a factory figure of approximately 333. D³ are considered to be amongst the most accurate in their results. They are an eddy current load base system and as such are not susceptible to inertial losses or gains associated with DynoJet or Mustang Dynos. As such, their results are comparatively low.

Dyno Dynamic’s dynos are not common here in the US and are far less prevalent than Mustang or Dynojet systems. More than likely, your 392rwhp example was cited using either a Dynojet or Mustang dyno. Considering Porsches factory rating of 380ish HP (flywheel), your 392rwhp would mean the stock car made about 440hp at the flywheel, a very optimistic result even for the best 'Monday' car. I’m not saying there haven’t been dynos showing those numbers, just that the disparity here can easily be attributed to different types of dynos.

38D

You can't change the ECU programming and remain in a stock class fro PCA club racing.

NJ-GT

George,

It's possible to have three maps? I mean stock (for trips to the dealer), modified (the 404Hp one) and race (for race gas track adventures)?

When is Spencer at F-L getting the new maps?

Thanks

Nordschleife

If I take my car to Porsche at Weissach, they take the engione out of the car and put it on an engine brake?
Why can't all tuners do this? Everything else is wonderland!

R+C

pole position

Well, it is no easy task to strap a motronic engine on a engine dyno and make it work. The main four letter US software tuner does not know either and the exorbitant powerclaims look soooooooooo much more impressive on chassis dynos used by tuner's sales departments.

Now, for the last time, by law , in Germany, a engine has to be within +/- 3 % of its advertised hp rating ,if not, it goes right back to assembly until it is within the specified range.

That is a fact not fiction and claims of 20,30 or 40 hp over advertised power figures are just dreams.