NASA PT/TT thread
03-03-2013, 09:25 AM
#51
mr 15k is not skinned to the bone, he sleeps well at night too - guess that leaves BHR then
4.5" is available through Motorsports or elsewhere and works
https://www.rx8club.com/rx-8-racing-...aspeed-187679/
4.5" is available through Motorsports or elsewhere and works
https://www.rx8club.com/rx-8-racing-...aspeed-187679/
03-03-2013, 12:55 PM
#55
Don't quite want to go to a 4.5" or 5.5", mostly due to cost but also so it's not absolutely retarded to drive at low speed. There are DSM guys that still daily the 7.25" Quartermasters, I still want to drive the car to local races, putting it on the trailer to pull it 10 miles is annoying.
03-04-2013, 01:26 PM
#57
Autoclub Speedway 03/02/2013
Had some great racing this weekend at the NASA race at the Auto Club Speedway in Fontana, CA.
The Mother's Wax / Robert Davis Racing team brought out three other RX-8s and a Miata for the PTD race and it was some great close racing. The attached pic was from after the first turn after the race start but it stayed almost this close the whole race.
Probably the best race with NASA I've had.
The Mother's Wax / Robert Davis Racing team brought out three other RX-8s and a Miata for the PTD race and it was some great close racing. The attached pic was from after the first turn after the race start but it stayed almost this close the whole race.
Probably the best race with NASA I've had.
03-07-2013, 02:31 AM
#59
Had some great racing this weekend at the NASA race at the Auto Club Speedway in Fontana, CA.
The Mother's Wax / Robert Davis Racing team brought out three other RX-8s and a Miata for the PTD race and it was some great close racing. The attached pic was from after the first turn after the race start but it stayed almost this close the whole race.
Probably the best race with NASA I've had.
The Mother's Wax / Robert Davis Racing team brought out three other RX-8s and a Miata for the PTD race and it was some great close racing. The attached pic was from after the first turn after the race start but it stayed almost this close the whole race.
Probably the best race with NASA I've had.
Is there any footage? I see a GoPro on that last RX-8 there.
03-18-2013, 10:44 PM
#62
Registered
Thread Starter
As always, the boys and girls at NASA TX ran a great event at Cresson (MSR 3.1 CCW). I ended up being first... and last as I was the only TTD signed up 
Since it was St Patty's weekend, I felt much better on Saturday than on Sunday (too much "antifreeze" - don't ask). That said, I ran better on Sunday up until noon when I ran out of stamina.
Next: TWS in College Station, TX!
Since it was St Patty's weekend, I felt much better on Saturday than on Sunday (too much "antifreeze" - don't ask). That said, I ran better on Sunday up until noon when I ran out of stamina.
Next: TWS in College Station, TX!
03-25-2013, 01:50 PM
#63
Dyno Reclassing - This can be a very useful option for cars competing in NASA TT and PT. As we know the NASA National Time Trial / Performance Touring Director, Greg Greenbaum, has a secret formula for determining your race class and minimum weight based on dyno results (must be from a Dynojet Dyno). He won't release how he determines this to anyone - not even his assitant directors (I should know as I am one!).
Often a Dyno Reclass is very useful because it eliminates any "points" taken for motor modifications or weight reduction and instead assigns you a maximum rear horsepower rating you must not exceed and a new minimum weight (weight is with driver). Also, you can't spend "points" to reduce this minimum weight once you have reclassed - you may not go under in any way.
Just FYI the "base" minimum competition weight/class (with driver) for a 2004-2008 RX-8 is PTD at 3045lbs if you do not dyno reclass. PTD has a maximum ADJUSTED power to weight ratio for ALL vehicles of 14.25:1 - once you factor in the "Adjustments" for the RX-8 you can run up to 229rwhp and you will still not exceed the max power/weight ratio of the class. We know that getting the renesis motor to that level without massive porting or forced induction is not really possible but if you happen to have a VERY powerful motor NOT doing a Dyno Reclass might be to your advantage. Dyno testing for TT and PT cars that are not Dyno Reclassed are rare but I've seen it done - particularly at Nationals. The base class for a 2009-2011 RX-8 is PTD* and for a 2009-2011 RX-8 R3 PTC. Same 3045 min weight. If you have one of these newer RX-8 models you really should dyno reclass right away. The 2009 and later RX-8s really don't have much of an on track performance advantage so why they're base classed so much higher is a mystery.
To help people determine if a Dyno Reclass might be useful for their RX-8 I thought I'd compile a list of the known Dyno Reclasses done for RX-8 race cars so far:
MagnusRacing: (2005 RX-8): PTD/TTD with 213rwhp and 3065lbs min weight OR TTD/PTD with 215rwhp and 3095 min weight
Etzilon: (2005 RX-8): TTD* with 207rwhp and 2900lbs min weight OR TTD** with 214rwhp and 2895lbs min weight as long as final class is TTC or higher
Arca ex: (2005 RX-8): TTD with 200rwhp and 2935lbs min weight OR TTD with 210rwhp and 3025lbs min weight OR TTD* with 218rwhp and 3055lbs min weight
Robert Davis: (2004 RX-8): PTD with 185rwhp and 2760lbs min weight OR PTE** with 185rwhp and 2900lbs min weight (final class must be PTD or higher)
Lee Papageorge: (2004 RX-8): PTD with 200rwhp and 2935lbs min weight OR PTE** with 200rwhp and 3030lbs min weight (final class must be PTD or higher)
DocgaterX8er: (2004 RX-8): PTD/TTD with 197rwhp and 2890lbs min weight
If anyone else has been dyno reclassed in a NASA TT or PT car please post your results here.
Often a Dyno Reclass is very useful because it eliminates any "points" taken for motor modifications or weight reduction and instead assigns you a maximum rear horsepower rating you must not exceed and a new minimum weight (weight is with driver). Also, you can't spend "points" to reduce this minimum weight once you have reclassed - you may not go under in any way.
Just FYI the "base" minimum competition weight/class (with driver) for a 2004-2008 RX-8 is PTD at 3045lbs if you do not dyno reclass. PTD has a maximum ADJUSTED power to weight ratio for ALL vehicles of 14.25:1 - once you factor in the "Adjustments" for the RX-8 you can run up to 229rwhp and you will still not exceed the max power/weight ratio of the class. We know that getting the renesis motor to that level without massive porting or forced induction is not really possible but if you happen to have a VERY powerful motor NOT doing a Dyno Reclass might be to your advantage. Dyno testing for TT and PT cars that are not Dyno Reclassed are rare but I've seen it done - particularly at Nationals. The base class for a 2009-2011 RX-8 is PTD* and for a 2009-2011 RX-8 R3 PTC. Same 3045 min weight. If you have one of these newer RX-8 models you really should dyno reclass right away. The 2009 and later RX-8s really don't have much of an on track performance advantage so why they're base classed so much higher is a mystery.
To help people determine if a Dyno Reclass might be useful for their RX-8 I thought I'd compile a list of the known Dyno Reclasses done for RX-8 race cars so far:
MagnusRacing: (2005 RX-8): PTD/TTD with 213rwhp and 3065lbs min weight OR TTD/PTD with 215rwhp and 3095 min weight
Etzilon: (2005 RX-8): TTD* with 207rwhp and 2900lbs min weight OR TTD** with 214rwhp and 2895lbs min weight as long as final class is TTC or higher
Arca ex: (2005 RX-8): TTD with 200rwhp and 2935lbs min weight OR TTD with 210rwhp and 3025lbs min weight OR TTD* with 218rwhp and 3055lbs min weight
Robert Davis: (2004 RX-8): PTD with 185rwhp and 2760lbs min weight OR PTE** with 185rwhp and 2900lbs min weight (final class must be PTD or higher)
Lee Papageorge: (2004 RX-8): PTD with 200rwhp and 2935lbs min weight OR PTE** with 200rwhp and 3030lbs min weight (final class must be PTD or higher)
DocgaterX8er: (2004 RX-8): PTD/TTD with 197rwhp and 2890lbs min weight
If anyone else has been dyno reclassed in a NASA TT or PT car please post your results here.
Really stupid men that is LOL
I have a stage II ExedyUSA
03-26-2013, 12:06 AM
#64
it would be interesting to see and compare the MAF & IAT logs between these ...
MagnusRacing: (2005 RX-8): PTD/TTD with 213rwhp and 3065lbs min weight OR TTD/PTD with 215rwhp and 3095 min weight
Etzilon: (2005 RX-8): TTD* with 207rwhp and 2900lbs min weight OR TTD** with 214rwhp and 2895lbs min weight as long as final class is TTC or higher
Arca ex: (2005 RX-8): TTD with 200rwhp and 2935lbs min weight OR TTD with 210rwhp and 3025lbs min weight OR TTD* with 218rwhp and 3055lbs min weight
Robert Davis: (2004 RX-8): PTD with 185rwhp and 2760lbs min weight OR PTE** with 185rwhp and 2900lbs min weight (final class must be PTD or higher)
Lee Papageorge: (2004 RX-8): PTD with 200rwhp and 2935lbs min weight OR PTE** with 200rwhp and 3030lbs min weight (final class must be PTD or higher)
DocgaterX8er: (2004 RX-8): PTD/TTD with 197rwhp and 2890lbs min weight
If anyone else has been dyno reclassed in a NASA TT or PT car please post your results here.
MagnusRacing: (2005 RX-8): PTD/TTD with 213rwhp and 3065lbs min weight OR TTD/PTD with 215rwhp and 3095 min weight
Etzilon: (2005 RX-8): TTD* with 207rwhp and 2900lbs min weight OR TTD** with 214rwhp and 2895lbs min weight as long as final class is TTC or higher
Arca ex: (2005 RX-8): TTD with 200rwhp and 2935lbs min weight OR TTD with 210rwhp and 3025lbs min weight OR TTD* with 218rwhp and 3055lbs min weight
Robert Davis: (2004 RX-8): PTD with 185rwhp and 2760lbs min weight OR PTE** with 185rwhp and 2900lbs min weight (final class must be PTD or higher)
Lee Papageorge: (2004 RX-8): PTD with 200rwhp and 2935lbs min weight OR PTE** with 200rwhp and 3030lbs min weight (final class must be PTD or higher)
DocgaterX8er: (2004 RX-8): PTD/TTD with 197rwhp and 2890lbs min weight
If anyone else has been dyno reclassed in a NASA TT or PT car please post your results here.
03-26-2013, 12:50 AM
#65
SAE correction is far from perfect unfortunately...
The toughest part is being on a Dyno reclass then going to Nationals at a different elevation and still having to be at the same power levels. They have a Dyno at the event and if you start winning, the car goes on the Dyno for compliance checks. Different elevation, different weather, different Dyno, it's a gamble of how much power you leave on the table to stay safe if you're going to be competitive at Nationals.
03-26-2013, 08:10 AM
#66
Registered
Thread Starter
I guess you need to have 'spare' points (I have 2 left).
From TTR:
One (1) “penalty” Modification Point will be assessed for every one (1) horsepower above the submitted number. The total number of penalty points will be added to the car’s current number of Modification Points to determine if the car has illegally competed in a class that is too low.
From TTR:
One (1) “penalty” Modification Point will be assessed for every one (1) horsepower above the submitted number. The total number of penalty points will be added to the car’s current number of Modification Points to determine if the car has illegally competed in a class that is too low.
03-28-2013, 09:04 AM
#68
Registered
Join Date: Feb 2011
Location: Houston, TX
Posts: 326
Likes: 0
Received 0 Likes
on
0 Posts
I guess you need to have 'spare' points (I have 2 left).
From TTR:
One (1) “penalty” Modification Point will be assessed for every one (1) horsepower above the submitted number. The total number of penalty points will be added to the car’s current number of Modification Points to determine if the car has illegally competed in a class that is too low.
From TTR:
One (1) “penalty” Modification Point will be assessed for every one (1) horsepower above the submitted number. The total number of penalty points will be added to the car’s current number of Modification Points to determine if the car has illegally competed in a class that is too low.
There are some cues we can all take from the dyno classes (AI, GTS, etc) that have been at this alot longer than we have
03-28-2013, 07:52 PM
#69
Dyno Reclassing - This can be a very useful option for cars competing in NASA TT and PT. As we know the NASA National Time Trial / Performance Touring Director, Greg Greenbaum, has a secret formula for determining your race class and minimum weight based on dyno results (must be from a Dynojet Dyno). He won't release how he determines this to anyone - not even his assitant directors (I should know as I am one!).
Often a Dyno Reclass is very useful because it eliminates any "points" taken for motor modifications or weight reduction and instead assigns you a maximum rear horsepower rating you must not exceed and a new minimum weight (weight is with driver). Also, you can't spend "points" to reduce this minimum weight once you have reclassed - you may not go under in any way.
Just FYI the "base" minimum competition weight/class (with driver) for a 2004-2008 RX-8 is PTD at 3045lbs if you do not dyno reclass. PTD has a maximum ADJUSTED power to weight ratio for ALL vehicles of 14.25:1 - once you factor in the "Adjustments" for the RX-8 you can run up to 229rwhp and you will still not exceed the max power/weight ratio of the class. We know that getting the renesis motor to that level without massive porting or forced induction is not really possible but if you happen to have a VERY powerful motor NOT doing a Dyno Reclass might be to your advantage. Dyno testing for TT and PT cars that are not Dyno Reclassed are rare but I've seen it done - particularly at Nationals. The base class for a 2009-2011 RX-8 is PTD* and for a 2009-2011 RX-8 R3 PTC. Same 3045 min weight. If you have one of these newer RX-8 models you really should dyno reclass right away. The 2009 and later RX-8s really don't have much of an on track performance advantage so why they're base classed so much higher is a mystery.
To help people determine if a Dyno Reclass might be useful for their RX-8 I thought I'd compile a list of the known Dyno Reclasses done for RX-8 race cars so far:
MagnusRacing: (2005 RX-8): PTD/TTD with 213rwhp and 3065lbs min weight OR TTD/PTD with 215rwhp and 3095 min weight
Etzilon: (2005 RX-8): TTD* with 207rwhp and 2900lbs min weight OR TTD** with 214rwhp and 2895lbs min weight as long as final class is TTC or higher
Arca ex: (2005 RX-8): TTD with 200rwhp and 2935lbs min weight OR TTD with 210rwhp and 3025lbs min weight OR TTD* with 218rwhp and 3055lbs min weight
Robert Davis: (2004 RX-8): PTD with 185rwhp and 2760lbs min weight OR PTE** with 185rwhp and 2900lbs min weight (final class must be PTD or higher)
Lee Papageorge: (2004 RX-8): PTD with 200rwhp and 2935lbs min weight OR PTE** with 200rwhp and 3030lbs min weight (final class must be PTD or higher)
DocgaterX8er: (2004 RX-8): PTD/TTD with 197rwhp and 2890lbs min weight
If anyone else has been dyno reclassed in a NASA TT or PT car please post your results here.
Often a Dyno Reclass is very useful because it eliminates any "points" taken for motor modifications or weight reduction and instead assigns you a maximum rear horsepower rating you must not exceed and a new minimum weight (weight is with driver). Also, you can't spend "points" to reduce this minimum weight once you have reclassed - you may not go under in any way.
Just FYI the "base" minimum competition weight/class (with driver) for a 2004-2008 RX-8 is PTD at 3045lbs if you do not dyno reclass. PTD has a maximum ADJUSTED power to weight ratio for ALL vehicles of 14.25:1 - once you factor in the "Adjustments" for the RX-8 you can run up to 229rwhp and you will still not exceed the max power/weight ratio of the class. We know that getting the renesis motor to that level without massive porting or forced induction is not really possible but if you happen to have a VERY powerful motor NOT doing a Dyno Reclass might be to your advantage. Dyno testing for TT and PT cars that are not Dyno Reclassed are rare but I've seen it done - particularly at Nationals. The base class for a 2009-2011 RX-8 is PTD* and for a 2009-2011 RX-8 R3 PTC. Same 3045 min weight. If you have one of these newer RX-8 models you really should dyno reclass right away. The 2009 and later RX-8s really don't have much of an on track performance advantage so why they're base classed so much higher is a mystery.
To help people determine if a Dyno Reclass might be useful for their RX-8 I thought I'd compile a list of the known Dyno Reclasses done for RX-8 race cars so far:
MagnusRacing: (2005 RX-8): PTD/TTD with 213rwhp and 3065lbs min weight OR TTD/PTD with 215rwhp and 3095 min weight
Etzilon: (2005 RX-8): TTD* with 207rwhp and 2900lbs min weight OR TTD** with 214rwhp and 2895lbs min weight as long as final class is TTC or higher
Arca ex: (2005 RX-8): TTD with 200rwhp and 2935lbs min weight OR TTD with 210rwhp and 3025lbs min weight OR TTD* with 218rwhp and 3055lbs min weight
Robert Davis: (2004 RX-8): PTD with 185rwhp and 2760lbs min weight OR PTE** with 185rwhp and 2900lbs min weight (final class must be PTD or higher)
Lee Papageorge: (2004 RX-8): PTD with 200rwhp and 2935lbs min weight OR PTE** with 200rwhp and 3030lbs min weight (final class must be PTD or higher)
DocgaterX8er: (2004 RX-8): PTD/TTD with 197rwhp and 2890lbs min weight
If anyone else has been dyno reclassed in a NASA TT or PT car please post your results here.
03-28-2013, 08:11 PM
#70
I guess you need to have 'spare' points (I have 2 left).
From TTR:
One (1) “penalty” Modification Point will be assessed for every one (1) horsepower above the submitted number. The total number of penalty points will be added to the car’s current number of Modification Points to determine if the car has illegally competed in a class that is too low.
From TTR:
One (1) “penalty” Modification Point will be assessed for every one (1) horsepower above the submitted number. The total number of penalty points will be added to the car’s current number of Modification Points to determine if the car has illegally competed in a class that is too low.
03-29-2013, 07:43 AM
#73
Registered
Thread Starter
D.3 seems to refer to the gearbox only. I.d.4 refers to the final drive ratio as it pertains to the drivetrain (no accounting for tire diameter).
My interpretation is that changing R&P would fall under I.d.4 and should not cost you any points at all. I have been reading through it as it would be great to have a 5.12:1
As always, consult your friendly neighborhood NASA TT Director.
My interpretation is that changing R&P would fall under I.d.4 and should not cost you any points at all. I have been reading through it as it would be great to have a 5.12:1
As always, consult your friendly neighborhood NASA TT Director.
03-29-2013, 08:05 AM
#74
D.3 seems to refer to the gearbox only. I.d.4 refers to the final drive ratio as it pertains to the drivetrain (no accounting for tire diameter).
My interpretation is that changing R&P would fall under I.d.4 and should not cost you any points at all. I have been reading through it as it would be great to have a 5.12:1
As always, consult your friendly neighborhood NASA TT Director.
My interpretation is that changing R&P would fall under I.d.4 and should not cost you any points at all. I have been reading through it as it would be great to have a 5.12:1
As always, consult your friendly neighborhood NASA TT Director.
do u know if the Base model RX-8 has a posi?