The reason I am asking is because if you have a 997TT engine, at 1.5 Bar you would be getting around 600-650ft.lbs of torque maximum, this is driven by the VE of these engines, and the maximum amount of torque they can produce per lb. of air.. Max torque is produced at maximum boost. Unless you are running higher static compression than stock, which is why I asked earlier.

These numbers that I am quoting are per factory dyno standards.

Is your guy Andy?

 

Nice flame!

 

you are absolutely right.
my ecu guy name Ansgar was also very surprised, probably cams are doing this job.
my cooler system is working perfect, during acceleration on 6th gear my intake temp is rising 10C I believe it also helps.

here is dyno from Ansgar's maha, please watch the purple line it's boost.

 

Sorry, my bad, Ansgar not Andy.. Weissen.

 

so you can ask him about this engine.....

 

Thanks for posting this dyno sheet.
It seems to show 635ft.lbs of torque at 1.4 Bar, which seems very accurate.

To reach this level of torque at 1.5 Bar this engine should have the efficiency (VE) of a 997RSR (read compression and racing cams too)..Seems unrealistic.. Anyway no biggie.. The car is insanely fast!

 

it's 1,2 bar boost @ 3000 not 1,4 look again.
it's 1,4 @ 4500 for a moment as you can see, at top is again 1,1.
btw I have racing cams.

 

Karol, Sorry to keep dwelling on this, but just for clarity, the maximum torque reading of ~635 lbs.ft at 4740 RPMs is at 1.4 Bar on Ansgar's dyno sheet. Whereas the maximum torque on the new dyno sheet is 815lbs.ft at 1.5 Bar... torque is "at best" proportional (assuming 100% efficiency) to boost if measured on the same engine, so at 1.5 Bar your max torque should be max. 680lbs. ft.

I honestly dont know how is this possible. It would be interesting to hear Ansgar's reply to this if you talk to him.

The racing cams of the RSR hold idle at 2.7k RPMs

 

There's something wrong with these dyno graphs. TQ and HP curves should cross at 5250.

 

These torque readings are in NM, they dont cross at 5250 RPMs.

 

That's just units conversion. Has nothing to do with the equation (HP=TQxRPM/5250). Besides, his two charts cross at different places. If you don't feel they should cross at 5250, where should they cross?

 

you can talk with Ansgar, you know where to find him?
imagine that there was no way to find clutch that would hold this torque.
all 764 and clutch masters failed.
that is also why this car accelerate 100-200 in 4,7sec starting on 4th.
so now I know that clutch system is showing real porsche power if you are running sachs than ............
I know how rsr cams are working, but mine are not so bad too

btw 785 PS on 1,1 bar boost is also not so bad?

 

ok, here is another dyno test, same adjustment.
this is road dyno.

 

Power in HP = (Torque in lb-ft) ´ RPM / 5250
1 lb.ft = 1.356 N.M.
=> HP = (Torque in lb-ft) ´ RPM / 5250 x 1.355

Will cross at 7119 RPMs

 

Karol,

I am not disputing your numbers, I am quesitoning those torque numbers at those boost levels. If you are comfortable with them that's what matters!

Cheers.