981rwhp 996TT?? (dyno chart in link)
#1
12-31-2005, 09:19 AM
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981rwhp 996TT?? (dyno chart in link)
Is this person on the board? Can anyone verify this dyno chart? The name looks familiar...
http://forums.evolutionm.net/showthr...&highlight=996
http://forums.evolutionm.net/showthr...&highlight=996
Just finished my first dyno run with lots of final tuning to be done. Anyway, my Porsche 996 twin turbo made 981 rwhp. My goal is at least 1000 rwhp. Looks like we need to overcome some obstacles above 6800 rpm to 7400 rpm. Nevertheless, looks like it will be one fun street car to drive!
#2
12-31-2005, 10:06 AM
Ruiner,
I've never seen him post here before, but he used to post on Rennlist.
He sort of disappeared after his car was modified.
Enzo_Etr
New Dynojet AWD in Midwest (Ohio)
Greg A
I've never seen him post here before, but he used to post on Rennlist.
He sort of disappeared after his car was modified.
Enzo_Etr
New Dynojet AWD in Midwest (Ohio)
Greg A
#4
12-31-2005, 12:02 PM
Here is another dyno graph of that same car with some additional top end tuning to smooth our the power curve. We have some more tricks that we are adding that will put it well over 1000 RWHP. All I can say is this car is a BEAST. We will have more news shortly. Stay Tuned! 
#5
12-31-2005, 12:04 PM
Originally posted by teflon
He sort of disappeared after his car was modified.
He sort of disappeared after his car was modified.
That chart looks awful! It will be more like 800 flywheel HP anyway, based on the 6-8 second runs we see EVOMS rate their engines on, and those 25-30PSI of boost .
#6
12-31-2005, 12:29 PM
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#7
12-31-2005, 01:20 PM
Originally posted by Jean
It will be more like 800 flywheel HP anyway, based on the 6-8 second runs we see EVOMS rate their engines on, and those 25-30PSI of boost .
It will be more like 800 flywheel HP anyway, based on the 6-8 second runs we see EVOMS rate their engines on, and those 25-30PSI of boost .
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#8
12-31-2005, 01:40 PM
Originally posted by Johnfromjersey
care to elaborate? if the car is putting nearly 1000hp at the wheels any figure measured closer to the crank should have less drivetrain loss and therefore a higher output not lower...
care to elaborate? if the car is putting nearly 1000hp at the wheels any figure measured closer to the crank should have less drivetrain loss and therefore a higher output not lower...
The RWHP to FWHP is not what I was talking about.
A dyno run that is performed on a chassis dyno for a length of a few seconds under hardly any load, typically translates into a much lower "real" Porsche hp figure once on the ground, nothing to do with drivetrain losses and conversions etc..
Basically, once these cars are running under load and boosting so much, they will hardly hold more than 60-70% of this HP that you are seeing on the chassis dyno for a few seconds, obviously because of heat.
This is not a popular thing to say but unfortunately it is the reality. I believe the HP claims that are made by some (disclaimer) tuners on the chassis dyno (like the one I saw of EVOMS) are more like ponies once the car is on the ground...don't be surprised if a 650HP engine-dynoed Porsche beats these 1200 chassis FWHP animals in a 0-190mph run.
#9
12-31-2005, 01:56 PM
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Hardly any load? Most Chassis dyno's put more load on the car then the road does. 5000lbs rollers are heavier then the car itself. I am sure the there is some loss that the dyno creates, but I am sure the total output is still way above the WHP figure.
#10
12-31-2005, 02:09 PM
It depends on whether the dyno is load-bearing or not. For instance, Mustang AWD dynos are load-bearing while Dynojet typically is not.
Either way, the American dynos are typically much more conservative than the MAHA dynos used in Germany.
That's why American HP numbers generally seem higher than the German tuners. That, among some other reasons.
I'd like to see how this car stacks up against Alex D.'s Protomotive car. I predict the power curves are quite different.
Either way, the American dynos are typically much more conservative than the MAHA dynos used in Germany.
That's why American HP numbers generally seem higher than the German tuners. That, among some other reasons.
I'd like to see how this car stacks up against Alex D.'s Protomotive car. I predict the power curves are quite different.
#11
12-31-2005, 02:26 PM
Tyson congrats on the M5 I cannot believe you're coming back into the BMW fold, congrats.
Are you sure you don't want to wait for the 6 speed? I understand NA's SMG III has a dumbed down LC.
Are you sure you don't want to wait for the 6 speed? I understand NA's SMG III has a dumbed down LC.
#12
12-31-2005, 02:29 PM
Originally posted by Hamann7
It depends on whether the dyno is load-bearing or not. For instance, Mustang AWD dynos are load-bearing while Dynojet typically is not.
Either way, the American dynos are typically much more conservative than the MAHA dynos used in Germany.
That's why American HP numbers generally seem higher than the German tuners. That, among some other reasons.
I'd like to see how this car stacks up against Alex D.'s Protomotive car. I predict the power curves are quite different.
It depends on whether the dyno is load-bearing or not. For instance, Mustang AWD dynos are load-bearing while Dynojet typically is not.
Either way, the American dynos are typically much more conservative than the MAHA dynos used in Germany.
That's why American HP numbers generally seem higher than the German tuners. That, among some other reasons.
I'd like to see how this car stacks up against Alex D.'s Protomotive car. I predict the power curves are quite different.
#13
12-31-2005, 02:32 PM
It is not only the chassis dyno that is the issue, it is how you do your runs. You will understand better what I mean when you see your car being dynoed and slaughtered at the MAHA facility of someone like Manthey Racing, those are real "loaded" runs, the session is about 20-30 minutes just to get a reading (not tuning the car, just measuring), each run is about 25 seconds or so, they put special tires because the others tend to blow up and you see fire coming out of your exhausts and bumpers melting if they are not removed. Then I compare those results vs. what I have from my engine dyno sheet.
It is not about my car here anyway, I only have half of that EVOMS 1200FWHP but I would love to see what this car does against Alex D.'s car like Hamann said or against a RUF RT12 with only 650 horses.
It is not about my car here anyway, I only have half of that EVOMS 1200FWHP but I would love to see what this car does against Alex D.'s car like Hamann said or against a RUF RT12 with only 650 horses.
#14
12-31-2005, 02:39 PM
Originally posted by Paul S
Tyson congrats on the M5 I cannot believe you're coming back into the BMW fold, congrats.
Are you sure you don't want to wait for the 6 speed? I understand NA's SMG III has a dumbed down LC.
Tyson congrats on the M5 I cannot believe you're coming back into the BMW fold, congrats.
Are you sure you don't want to wait for the 6 speed? I understand NA's SMG III has a dumbed down LC.
I really like the CLS 55, but the roofline is so low and the back seats are tight.
If I can get a good deal on an E55 wagon, I may just do that.
Hopefully, I will see you at the next track day... I've been so busy with work that I haven't been able to get out to the track much this year.
#15
12-31-2005, 02:42 PM
Originally posted by sharkster
Yeah it'd be good to see. Alex and I were both suprised you didn't take the GT2 to him after what you did with the TT? We can't believe you stayed stock lol!
Yeah it'd be good to see. Alex and I were both suprised you didn't take the GT2 to him after what you did with the TT? We can't believe you stayed stock lol!
By the way, the fact that I left it stock should tell you what a great package the GT2 is right out of the box. On the track it is quite a disciplined challenge to go really fast even in bone stock form.