GLD next week...

[Jcobra]

They are older, but they are right around 72mm. Due to the larger diameters it takes a little bit longer to spool but provides a little more power in mid/top end range.

The turbos i want will be somewhere between 62-67mm. I am only running 8-9 lbs of boost for now so a bigger turbo isn't necessary. I love turbos and their concepts so any questions let me know.

Any video of the car?

[Pro Stock John]

I don't have any short term plans to boost the car, though the Formula had a blower and then the turbo. I think if I build something crazy it will be a separate project.

[SYCK SS]

Any video of the car?

twin turbo 2010 camaro at drag strip - YouTube

Here is the most recent trip to the track. Also if you hunt through my channel there are a couple other little ones. Ignore the puppies in the snw though lol

[Pro Stock John]

What kind of tires you have in back of your TT car? Sometimes in the old days when the clutch stayed down, we'd change out the fluid after that.

[SYCK SS]

What kind of tires you have in back of your TT car? Sometimes in the old days when the clutch stayed down, we'd change out the fluid after that.

when I went to the track last time is was the stock tires. I have a set of C6 zo6 wheels that I was going to setup with Nitto drag radials but I didn't get the tires in time for the last trip.

And thanks for that advice, I'll be sure to change the fluid before Tuesday to see if that helps. I'm even thinking about creating a separate reservoir for the clutch soon. Hopefully that helps too.

[CAMARO SS]

Can't make it Tuesday or Wednesday but might be able to go on Thursday if anyone wants to go that day.

[HumanWiki]

And Wiki did you have any problems with traction in 2nd and 3rd??? My first goal is to nail the 2.0xx 60ft, I know I can pull it off, buy I'm also losing a lot of time from spinning in the top of my gears. So I was curious on if you experienced that as well.

Nope.. My traction issues are in 1st only for the moment because I run with the computer still on... I took the system off for one pass and almost got sideways.. not again unless I'm on a proper tire.

I may have missed it -- but, how are you launching?

[SYCK SS]

Nope.. My traction issues are in 1st only for the moment because I run with the computer still on... I took the system off for one pass and almost got sideways.. not again unless I'm on a proper tire.

I may have missed it -- but, how are you launching?

Ahhhh see, I turn the computer off everytime. I didn't even think of leaving it on. Just a habit to turn it off. Now which mode are you in usually?

And as far as me launching, I usually hover between 2500-2700- slowly letting the clutch out and feathering the gas a little. The last two passes I tried something different basically like a two step and reved up really high to get my turbos spooling to try and have boost when leaving, but it made my clutch stick to the floor for some reason.

[HumanWiki]

Ahhhh see, I turn the computer off everytime. I didn't even think of leaving it on. Just a habit to turn it off. Now which mode are you in usually?

Try leaving the computer fully on a couple passes and get a feel for clutch and launching on the OEM tire.. You and I are pushing too much power for our OE tires for 0 computer w/o crazy pedal modulation. Lower your launch RPM some and ride the clutch out a little longer before rolling in to the thottle.. With your twins, you should have lower TQ on launch than I would if I just hit it.. Even w/o the blower engaged, the engine can overpower the tires easily. Make sure you're below 30PSI on the rears and pump the fronts up to 40 (less rolling resistance).. Next time out, I'm going to try leaving the tree like I leave a light.. Just enough of both to get the car moving, almost to the point of tire spin.. Leaving the computer on allows you to off load that portion while you work on clutch engagement and throttle rolling.

Once you've got that down, go switch to TCS off,but leave Stabilitrak on (you'll want that if you get crazy)... This still lets you have some tire spin, but also help keep the car from getting crazy...

Sadly, you have to be rude to the clutch to launch these cars w/o overspinning or bogging..

And as far as me launching, I usually hover between 2500-2700- slowly letting the clutch out and feathering the gas a little.

Try and not do both at the same time... Stage, clutch in, idle up and wait for light.. On the 2nd light, let the clutch out to the point that it's just starting to move the car and leave it there.. the delay is sufficient that you won't red light between clutch engage, power transfer and beam break. Once you're rolling out on your steady throttle, then roll in to the throttle as you finish letting off the clutch at the same time.. No sudden actions, just like you're rolling your feet to be quiet or something.

The last two passes I tried something different basically like a two step and reved up really high to get my turbos spooling to try and have boost when leaving, but it made my clutch stick to the floor for some reason.

You could have superheated the fluid in the clutch. The OEM stuff heats up and does that easily.. A full flush with a higher grade fluid may help with that (assuming heat is the issue).. I noticed I was getting that as well up at Road America in the long straights just pounding on the engine.. Through the turns and excessive braking, I heated up both the brake and clutch fluid (since they're in the same system) and both went to the floor.. Once I had it swapped out with Motul RBF600 the next day, the break issue was gone -- though, I still had some clutch issues, but that's because we didn't bleed that portion of the system, so still on DOT3.


I don't really have any DR pointers -- never had run them on a stick car.

[DarkSS]

I'm going to GLD Saturday if anyone is interested. I will be making Priz curl into a ball and suck his thumb.

[CAMARO SS]

I'm going to GLD Saturday if anyone is interested. I will be making Priz curl into a ball and suck his thumb.

Damn school presentations and projects or else I would have gone on Saturday.

[KATHY63]

Got our new tires last weekend and going to Earlville, thanks for the invite though Dan!

[SYCK SS]

Thanks for all the tips, i will try it out and let you know how it goes.

i think i will do my next trip on the stock tires to see how much better i can do before i toss on the DR's. i am anticipating a broke axle at some point after i stick those puppies on so i want to make the most of the tires i got for now.

one last question, because i have heard the answer go both ways but because of your times i think you would know- smokey burnout or just a quick burst?

[Pro Stock John]

I can't race this weekend, my 6 year old has a baseball game double-header on Saturday.

I've not raced DR's plus a manual, but I would not dump the clutch initially as you could find the limits of your axles pretty quick. I would do a smoky burnout on the first pass, and then I usually do half as much on successive runs. I would change the clutch fluid maybe Randy's reccomendation will mitigate that issue.

I like using a 2-step, helps with consistency.

Here is how I use DR's:

-Air them down to __. For 20's I don't think I'd go below 25 psi to start. I've run 325-50-15's in the 16-17 psi range but they have a ton of sidewall.
-First burnout on new tires, I go extra long.
-if I don't have skinnies up front, I go around the water. I then back into the very front edge of the water box, where it might be a little damp. I do my burnout there to keep it easy on the posi. I roll out of it.
-I make sure to be in the groove. I look at the starting line to make sure I know where it is. If you are out of the groove, there is not as much rubber, and you will not do as well.
-If I'm using a 2 step, I would have that set. I'd roll out fast but not dump the clutch. After all you are trying to go from a 2.29 short time to a 1.95 on your first. Sure doing a 1.7 or 1.8 would rock but take baby steps.
-Watch wheel hop. That breaks stuff. Don't drive it out if it's really bad.

[HumanWiki]

one last question, because i have heard the answer go both ways but because of your times i think you would know- smokey burnout or just a quick burst?

Only smokey burnout I've done in the car was at the LCPC open house in their parking lot..

On the track, I drive around the water box (as John mentioned) and then back in to it just enough to hit the damp area. I put the car in 2nd, with all the computer controls off and do just enough to heat the tires, dry them off and knock and crap off them.. Constantly doing smokey burn outs on the PZeros is really just a way to make G-Man more money

The 2nd gear thing is for tire speed and to prevent you from bouncing off the limiter like crazy.. The car lights up the tires just fine in second and your RPMs on the engine stay down. Once you hear them start to squeal on you, let the car start moving forward and left off the gas.. Then stage like normal --- remembering to put the car back in to the proper mode before staging.