NASA PTD Race Car Dyno Results
#27
this is a good thread!
i think it might in our region, we've got a lot of sunday drivers our PTE people run around the same times as the PTC...
IMo, i think the simple start is to do PTD/TTD, and run the 225 hoosier, you take 10 points for the hoosier, but -4 for the 225. the Hoosiers run wide... vs running like a 245 hanook, which is 7 points...
i think the easy way is to run a pretty basic car in PTD, suspension, 225 hoosiers, and the free stuff that applies. adding hp seems to be the hard part, so going up a class might not be the way to go? although this is off the top
i think it might in our region, we've got a lot of sunday drivers our PTE people run around the same times as the PTC...
I found that the 275's actually slowed me down a little. 245's-255's ( hoosiers only?) seem to be the best size for my car. I guess each one can be a little different.
i think the easy way is to run a pretty basic car in PTD, suspension, 225 hoosiers, and the free stuff that applies. adding hp seems to be the hard part, so going up a class might not be the way to go? although this is off the top
#29
BECAUSE RACECAR
iTrader: (10)
Besides, there's a supercharged Miata here that runs in TT-D and cleans house, his times are about a second faster than the TT-C times so being in TT-C means I can have a faster car and run against slower times anyways lol.
#30
I'm not running in TT-D. I'll be in TT-C so I have points to play around with aero and then the next step will be motor swap for significantly more power, either N/A 20b or 13b-REW single turbo. It's a stepping stone for me.
Besides, there's a supercharged Miata here that runs in TT-D and cleans house, his times are about a second faster than the TT-C times so being in TT-C means I can have a faster car and run against slower times anyways lol.
#31
Hi i have a question, i just signed up to nasa last year in november i drove my rx8 in HPDE 1 at Summit Point Raceway after the race like a week after i decided to dyno the car to see how much power it was making stock, the numbers were 157, 159, and 156hp to the wheels is this normal a normal amount of horsepower for a 96k miles RX8?
#32
Registered
iTrader: (3)
thats a little low on the dyno.
If i could get into TTC with my 315 rwhp that would be good.
But I have a problem. My power doesnt have a peak. Even at 9K it is still gaining hp. I dont want to rev the engine that high and at the redline I want to use, 8.2K, I am making less hp. So my classification has to be done on the power that i will not use. I understand that--but it is somewhat of a handicap.
So if anyone is planning to fi this engine and wanting to run TT --be aware of this possibility.
If i could get into TTC with my 315 rwhp that would be good.
But I have a problem. My power doesnt have a peak. Even at 9K it is still gaining hp. I dont want to rev the engine that high and at the redline I want to use, 8.2K, I am making less hp. So my classification has to be done on the power that i will not use. I understand that--but it is somewhat of a handicap.
So if anyone is planning to fi this engine and wanting to run TT --be aware of this possibility.
#35
So if my horspower is low those that mean that my compression is low?
Also I will be attending a HPDE session at Limerock Park on March 30th and I was wondering if its ok to use Premix on the on my car since I will be running the car hard, I have bottle of Protek from Pettit Racing.
Thanks for helping me with this question and for any advice...
Also I will be attending a HPDE session at Limerock Park on March 30th and I was wondering if its ok to use Premix on the on my car since I will be running the car hard, I have bottle of Protek from Pettit Racing.
Thanks for helping me with this question and for any advice...
#37
I want to use the Protek because they have a actuall video of the product vs the idemitsu and other premix and proteck actually burns better...look it up on YouTube when you get the chance and tell me what you think about it...
#42
Yeah... you should ask him to reclass you for like maybe 190rwhp or something. Maybe even less. How close are you to your minimum weight? If you're light ask for a lower weight but the same classing. If you're heavy ask for a lower classing like PTE or something.
#48
Registered
The best mid for an RX8 PT/TT using a points based system is to plan for the MSpeed 5.12 ring and pin. It will take your avail power and make it waaaay more useful. Period.
#49
Registered
The best mod for an nasa RX8 PT/TT using a points based system is to plan for the MSpeed 5.12 ring and pin. It will take your avail power and make it waaaay more useful. Period. No more bog dog 3 rd gear low rpm or dog slow 5th gear acceleration. It is a near perfect gear ratio that gives u many choices including not using 2nd gear and needing to use 6th at many of the road courses in the US. Best mod out there
#50
I think this sort of answers my question, but anyway:
I am looking into running NASA TT next year but I don't want to lighten/gut the car. I imagine the 'race weight' of the car with me is 3250-3300. Power should be around stock, ~185RWHP. Will using these numbers allow me to go down to TTE and add points from there? Alternatively, can I class in TTD with FI while using the additional 200-250lb min competition weight? Does classification with FI take into account the shape of the curve or only the peak value (I read it this way, but everything is up to the discretion of the organizers)?
Thanks,
Chris