Dry sump? a Performance Mod?
#1
Burning Brakes
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Dry sump? a Performance Mod?
I was Looking throught the Nasa TT rules and Nasa-X rules which is there autox And they want a person to take a 7 point Hit for adding a dry sump to your car and then a 14 point hit if you move the motor.
So i can see the points for moving the Motor but just adding a dry sump? Is there really that much of a performance boost from adding a dry sump system? without utilizing the ability to relocate the motor?
And well i know there can be some horsepower gains or i have read there is but is there really that much?
Sorry if this is a dumb question
So i can see the points for moving the Motor but just adding a dry sump? Is there really that much of a performance boost from adding a dry sump system? without utilizing the ability to relocate the motor?
And well i know there can be some horsepower gains or i have read there is but is there really that much?
Sorry if this is a dumb question
Last edited by 97C5inSD; 02-20-2010 at 07:56 AM.
#2
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Increases crankshaft horsepower by decreasing windage
Creates crankcase vacuum which decreases blowby and intake charge contamination and decreases detonation
Creates crankcase vacuum which decreases blowby and intake charge contamination and decreases detonation
#3
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The points system is only going to matter if you are running TTA/PTA or TTB/PTB. I doubt that anyone in those classes are running a drysump anyway. If you are running ST2 or ST1 then the points don't count as it's all power to weight based.
I agree that some of the TT/PT points modifers are out of wack.
I agree that some of the TT/PT points modifers are out of wack.
#5
Drifting
I was Looking throught the Nasa TT rules and Nasa-X rules which is there autox And they want a person to take a 7 point Hit for adding a dry sump to your car and then a 14 point hit if you move the motor.
So i can see the points for moving the Motor but just adding a dry sump? Is there really that much of a performance boost from adding a dry sump system? without utilizing the ability to relocate the motor?
And well i know there can be some horsepower gains or i have read there is but is there really that much?
Sorry if this is a dumb question
So i can see the points for moving the Motor but just adding a dry sump? Is there really that much of a performance boost from adding a dry sump system? without utilizing the ability to relocate the motor?
And well i know there can be some horsepower gains or i have read there is but is there really that much?
Sorry if this is a dumb question
#7
Burning Brakes
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#8
Drifting
I wish NASA would take a look at thier rule book as a new to NASA person and clean up the point adders. If I have a dyno HP of XXX and weigh XXXX why worry about mods that make HP. That is already included in the dyno. That would include dry sumps, exhaust and other mods that result in increased power. Some classes allow averaging F & R tires sizes and other classes do not. There also seems to be a difference between regions. Some places have classes that others do not. Areo mods that do make a difference in lap times are not point adders.
Overall it could be easier to build equal cars and with time I hope they get there.
Overall it could be easier to build equal cars and with time I hope they get there.
#9
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I wish NASA would take a look at thier rule book as a new to NASA person and clean up the point adders. If I have a dyno HP of XXX and weigh XXXX why worry about mods that make HP. That is already included in the dyno. That would include dry sumps, exhaust and other mods that result in increased power. Some classes allow averaging F & R tires sizes and other classes do not. There also seems to be a difference between regions. Some places have classes that others do not. Areo mods that do make a difference in lap times are not point adders.
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I wish NASA would take a look at thier rule book as a new to NASA person and clean up the point adders. If I have a dyno HP of XXX and weigh XXXX why worry about mods that make HP. That is already included in the dyno. That would include dry sumps, exhaust and other mods that result in increased power. Some classes allow averaging F & R tires sizes and other classes do not. There also seems to be a difference between regions. Some places have classes that others do not. Areo mods that do make a difference in lap times are not point adders.
Overall it could be easier to build equal cars and with time I hope they get there.
Overall it could be easier to build equal cars and with time I hope they get there.
Once you start running you will be very happy that the PT/TT rules are there, you can be competitive without spending a ton of money. I was told the Dry Sump rule was more of a way to keep costs down.
Myself I'm looking to get back to TT/PTA just because of the limiting rules, I would love to just maintain.
Also if the went had HP/LB only rule you all would be spending $$$ on dyno time and so would NASA. Currently PT a-f has a HP/LB max but no dyno is required.
Last edited by L98Terror; 02-22-2010 at 08:06 AM.
#11
Burning Brakes
I wish NASA would take a look at thier rule book as a new to NASA person and clean up the point adders.
If I have a dyno HP of XXX and weigh XXXX why worry about mods that make HP. That is already included in the dyno.
Email Greg Greenbaum (National TT Director) with all of your car info and he can re-class your car like he does with motor swaps. You will have a new base class and will not take points for engine mods.
http://www.nasaforums.com/viewtopic.php?f=2&t=12638
That would include dry sumps, exhaust and other mods that result in increased power.
Some classes allow averaging F & R tires sizes and other classes do not.
I'm not aware of any that allow averaging in PT/TT/ST.
There also seems to be a difference between regions. Some places have classes that others do not.
The Regions have the option to add a new class if they see a need. (much like SCCA with ITE...)
Areo mods that do make a difference in lap times are not point adders.
All PTA-F and TTA-F cars that have aero (that didn't come on the base model car) take points.
Overall it could be easier to build equal cars and with time I hope they get there.
If I have a dyno HP of XXX and weigh XXXX why worry about mods that make HP. That is already included in the dyno.
Email Greg Greenbaum (National TT Director) with all of your car info and he can re-class your car like he does with motor swaps. You will have a new base class and will not take points for engine mods.
http://www.nasaforums.com/viewtopic.php?f=2&t=12638
That would include dry sumps, exhaust and other mods that result in increased power.
Some classes allow averaging F & R tires sizes and other classes do not.
I'm not aware of any that allow averaging in PT/TT/ST.
There also seems to be a difference between regions. Some places have classes that others do not.
The Regions have the option to add a new class if they see a need. (much like SCCA with ITE...)
Areo mods that do make a difference in lap times are not point adders.
All PTA-F and TTA-F cars that have aero (that didn't come on the base model car) take points.
Overall it could be easier to build equal cars and with time I hope they get there.
Performance Touring is the easiest and cheapest class to race a Corvette.
Matt
#12
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I am trying to build my car for TTA because it seems like ST1 and ST2 are for deeper pockets. I really dont want to cut up the interior to do a full cage for PT but that may happen once I start TTing!
#13
Drifting
Agreed. My question was related to the points for just the dry sump; don't move the engine. Are the points there because with a dry sump you can lower the car more than if you have a wet sump?
#14
Burning Brakes
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Havein the Dry sump dose not allow you to lower the car anymore the you could prevouisly but you still get assesed the points just for the dry sump
#15
Racer
Honestly, the only reason I could see there being points for a dry sump system would be to encourage keeping the cost of the class down. Since this is a lower budget (as if that really exists in racing) class, so they could just be trying to encourage people to spend less money, or if anything, discourage people from spending more money.