Pettit Super Charger Owners
05-14-2010, 01:46 PM
#7101
Thanks for the feedback MM. I have been in contact with Greg and Jeff. Jeff is the TT director for the SE region. They have told me to get my hp down to what I mentioned, use no bigger than a 245 tire, basic coilovers and bars with weight at 3150 or so and I should be at TTC.
I would be at a power to weight ratio of approx 11.6/1 and you are right that i wouldnt have much room for anything else.
It was interesting that water injection doesnt cost any points. No methanol can be used however---in any class--unless you run the open ones.
I would not TT without a real cage however. Not going at it to have a undisputed winner of a car, but rather a car that i would be honestly competitive with.
Maybe getting time for another DD?
I would be at a power to weight ratio of approx 11.6/1 and you are right that i wouldnt have much room for anything else.
It was interesting that water injection doesnt cost any points. No methanol can be used however---in any class--unless you run the open ones.
I would not TT without a real cage however. Not going at it to have a undisputed winner of a car, but rather a car that i would be honestly competitive with.
Maybe getting time for another DD?
05-15-2010, 03:38 AM
#7102
Registered
nothing for the 09'+s yet.
Yall I am semi seriously thinking of using my car to become a competitive NASA TT car.
With the low boost pulley (hp about 270 or so?) i can just make the TTC class--its thought.
I could be very competitive in that class. I would no longer use it for a DD and a proper cage would be installed.
Think Cam would sponser me --lol!
Hard decisions.
OD
Yall I am semi seriously thinking of using my car to become a competitive NASA TT car.
With the low boost pulley (hp about 270 or so?) i can just make the TTC class--its thought.
I could be very competitive in that class. I would no longer use it for a DD and a proper cage would be installed.
Think Cam would sponser me --lol!
Hard decisions.
OD
Can't you drive a car with a cage on the street?
I made 297RWHP with a stock pulley and no porting.
/NASA??? You won't be like the JATO guy on Mythbusters; will you?
05-15-2010, 08:26 AM
#7103
297 with the small pulley? Damn--come to think of it i was pulling over 300g/sec myself.
It may be easier to just go TTB. max power to weight there is 10.25/1 i think and i know i can make that--plus have room for a better suspension tires---this is not a firm decision yet guys--just doing due diligence. But i think i am ready to go to the next step.
Most people dont realize with a little added power the 8 can be a force to reckon with.
Look at this vid with mike driving a na car
http://vimeo.com/8047700
It may be easier to just go TTB. max power to weight there is 10.25/1 i think and i know i can make that--plus have room for a better suspension tires---this is not a firm decision yet guys--just doing due diligence. But i think i am ready to go to the next step.
Most people dont realize with a little added power the 8 can be a force to reckon with.
Look at this vid with mike driving a na car
http://vimeo.com/8047700
Last edited by olddragger; 05-15-2010 at 08:33 AM.
05-15-2010, 06:54 PM
#7104
Registered
A question I have not been able to answer;
Do extremely high MAF numbers cause tire spin, or does the tire spinning and motor revving, cause high MAF numbers?
/Is this like the chicken and the egg?
Do extremely high MAF numbers cause tire spin, or does the tire spinning and motor revving, cause high MAF numbers?
/Is this like the chicken and the egg?
05-15-2010, 07:55 PM
#7105
Thanks for the feedback MM. I have been in contact with Greg and Jeff. Jeff is the TT director for the SE region. They have told me to get my hp down to what I mentioned, use no bigger than a 245 tire, basic coilovers and bars with weight at 3150 or so and I should be at TTC.
I would be at a power to weight ratio of approx 11.6/1 and you are right that i wouldnt have much room for anything else.
I would be at a power to weight ratio of approx 11.6/1 and you are right that i wouldnt have much room for anything else.
When I sent in my dyno (340 HP at the boost that I run on the track) and weight (3314 with me in it), they classed me to TT-C +14 and just counting in my suspension pushed me into TT-B.
You serious?
05-15-2010, 08:21 PM
#7107
260-275 range depending where my weight went. This is with BASIC coilovers and bars and tire size no bigger than 245. No other mods. That would get me to TTC+14 they thought.
I would hate being that close to be thrown into TTB or DQ'ed because there was cold air temps that day.
I think just giving it up and going TTB may be the sane thing to do.
I have heard about a turbo'd RX8 that would have placed 3nd in TTB if he had been running TT.
Track times where there.
you are under a 10/1 ratio?
Brettus ---its peak power after 3 pulls.
OD
I would hate being that close to be thrown into TTB or DQ'ed because there was cold air temps that day.
I think just giving it up and going TTB may be the sane thing to do.
I have heard about a turbo'd RX8 that would have placed 3nd in TTB if he had been running TT.
Track times where there.
you are under a 10/1 ratio?
Brettus ---its peak power after 3 pulls.
OD
05-15-2010, 08:26 PM
#7109
In our case, equipping the car with aftermarket forced induction means a director looks at our dyno sheet and weight and comes up with a "comparable" platform (in our case, the BMW 135i Coupe), which puts us in TT-C with an additional 14 point penalty.
6 more points and you are in TT-B with cars like the ZR-1 Corvette, Ferrari 348, Mustang Cobra SVT, Mercedes E55 AMG and Porsche 997 Carrera.
6 points are springs, shocks and a swaybar.
05-15-2010, 09:08 PM
#7110
I guess you could dial back the power, but you would have to demonstrate that there is no way to increase it on the fly.
Yeah, I'm 9.2:1
Well, clearly a turbo set-up with the same peak power is always going to have the advantage over an S/C on a road course.
Yeah, I'm 9.2:1
Well, clearly a turbo set-up with the same peak power is always going to have the advantage over an S/C on a road course.
05-15-2010, 11:48 PM
#7111
And it can be done without a boost controller which gets around the 'altering on the fly' issue .
05-16-2010, 08:43 AM
#7112
The Chief
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Damn, think my engine is done. Doing some unspirited driving the other day. My car started misfiring, All my dash lights lit up, and I've got a HUGE smoke cloud behind me. DTC's P0300 and P204. Had car towed to house. Found LOTS of oil in intake and in spark plugs for rear rotor. No oil on floor and no coolant loss. I'm thinking I lost a seal. Any other causes perhaps?
05-16-2010, 11:38 AM
#7114
Sorry to hear that JSK---that sucks.
You can use the 09 short block you know?
No argument here that turbo offers more flexibility in a rd racing situation, every system has benefits and negatives of their own.
Dont forget to add the lotus (na version) and the Porsche 993 (non turbo!) thats in TTB
OD
You can use the 09 short block you know?
No argument here that turbo offers more flexibility in a rd racing situation, every system has benefits and negatives of their own.
Dont forget to add the lotus (na version) and the Porsche 993 (non turbo!) thats in TTB
OD
05-16-2010, 01:10 PM
#7115
ThreadJack
No, it's not an RX8, but I can't let Denny have all the fun...
Yes, I'll be keeping my day job
http://www.youtube.com/watch?v=0Rcl1Nfpwu8
Yes, I'll be keeping my day job
http://www.youtube.com/watch?v=0Rcl1Nfpwu8
05-16-2010, 01:16 PM
#7116
Damn, think my engine is done. Doing some unspirited driving the other day. My car started misfiring, All my dash lights lit up, and I've got a HUGE smoke cloud behind me. DTC's P0300 and P204. Had car towed to house. Found LOTS of oil in intake and in spark plugs for rear rotor. No oil on floor and no coolant loss. I'm thinking I lost a seal. Any other causes perhaps?
05-16-2010, 08:32 PM
#7119
Registered
Damn, think my engine is done. Doing some unspirited driving the other day. My car started misfiring, All my dash lights lit up, and I've got a HUGE smoke cloud behind me. DTC's P0300 and P204. Had car towed to house. Found LOTS of oil in intake and in spark plugs for rear rotor. No oil on floor and no coolant loss. I'm thinking I lost a seal. Any other causes perhaps?
Remove the leading plugs.
Spin the engine and listen: do you here even pulses or PULSE, pulse, PULSE, PULSE, pulse ....
OR
Have a friend spin it with a finger in one leading plug hole; does it feel even?
Try the other hole; same test.
Sorry to hear about it, hope it's OK
05-17-2010, 08:38 AM
#7120
the all dash lights lit up throws me here. On my blown engines I never had a dash light come on that fast?
Z baby---man the hp of that M3 shows doesnt it? Wow--tapping 160--now thats a different world. I would probably blow out all my wheel liners at that speed. Love the video set up.
The one thing I wish i could do is to increase acceleration from 115mph to 135mph. This car is pretty quick from 60 to 115, but after that you can tell its air footprint could be better.
Has anyone other that Juan installed the 09 underpanels?
Z baby---man the hp of that M3 shows doesnt it? Wow--tapping 160--now thats a different world. I would probably blow out all my wheel liners at that speed. Love the video set up.
The one thing I wish i could do is to increase acceleration from 115mph to 135mph. This car is pretty quick from 60 to 115, but after that you can tell its air footprint could be better.
Has anyone other that Juan installed the 09 underpanels?
05-17-2010, 09:56 AM
#7121
05-17-2010, 10:52 AM
#7122
The Chief
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Charles, I still have your fuel pump tool. With this going on, I haven't gotten around to the fuel pump. I might just ship it back to you and get it from you again later.
05-18-2010, 08:14 AM
#7123
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05-19-2010, 08:20 PM
#7124
Registered
05-19-2010, 08:36 PM
#7125
So that was a serious question? lol
The MAF just measures throughput. Nothing "causes" it.
The motor is just an air pump. It passes a fixed amount of air through itself per rev. The blower is fixed-displacement, so it stuffs a fixed amount of air into the motor per rev.
Now, if you take some of the drag off of the drive train (i.e. the car), what do you think happens?
The MAF just measures throughput. Nothing "causes" it.
The motor is just an air pump. It passes a fixed amount of air through itself per rev. The blower is fixed-displacement, so it stuffs a fixed amount of air into the motor per rev.
Now, if you take some of the drag off of the drive train (i.e. the car), what do you think happens?