turbotuner20v

I finally put the car in the 10's this weekend. I have a 2009 Z51 with a 6spd running 345/30-19 NT05Rs out back at 17psi hot and CTS spares w/ 185/50-18's up front. I'm also on the stock clutch, gears and motor.

I got the 60' into the 1.7's for the first time this trip. I'd like to get it into the 1.5-1.6 range, but it's hard to keep the RPM's high enough to get out of the hole hard w/o spinning... I didn't bog on this one, but it defnitely feels like the car would 60' better if I got through the first few thousand rpm of acceleration faster.

Any suggestions or comments?

http://www.youtube.com/watch?v=Zx2iQ...&feature=share

2003VETT

MPH says ALOT more... Get those 60's down... Congrats!

turbotuner20v

thanks... getting the 60' down is definitely a challenge. If I go much higher than 3,000 rpm for the launch it seems to spin too much and turned into a little wheel hop.


And I think the MPH could be even better, the DA was ~1,850'... I'm jealous of the guys running in conditions that produce negative DA's.

2003VETT

Post up in the c5 performance section, there are a few guys that could help you out...

ajrothm

Nice times!! Good mph too...

I am running a pretty similar combo..

I made my first trip to the strip a couple weeks ago. Just running on Nitto 555Rs to make some easy passes and get an idea of the mph. Well I only made one full pass before the PS bracket/idler pully broke off throwing the belt.

I went a pitiful 11.97@131 with a 2.09 60' and a worse 5.44 330'. Basically babied it all thru 1st, got WOT in 2nd which got it fish tailing...pedaled it and it hooked, then hit 3rd/4th...

I am thinking I can go some 10.80s@134 as well if I can get any use out of 1st... Gonna have to throw some ET Streets on it to get there I think.

I'm too broke to fix anything else right now so I am gonna have to wait til after the first of the year before I head back out to the strip...

Keep us posted on your progress... I think you have 10.50-10.60s in it with a 1.60'

Rob Petyo

congrats

jpee

I have the utmost "respect" for ANYONE who can run a street car in the 10 sec zone!

With that being said, I prefer to run "bracket races" where "reaction time" is a major factor in determining who wins the race...

I just got my almost stock 2005 A4 into the very high 11 sec zone & know just how difficult it is.. I cant even imagine getting my car to run in the 10s

But correct me if I'm wrong or going in the wrong direction.. but isn't running in the 10's sort of who has the most $$ ( which I don't have)

I have never raced a car with a supercharger, Turbo, or NO2...all my cars are or have been NA.. I have not even had the valve covers off my 05... & I plan to run brackets, and a 12.0 Index if E Town has one...

Also I'm sort of leery of VERY HIGH HP cars just because of the $$ to maintain them .. (I'm retired and on a fixed income) so I run a "soft" set up to save parts, but "WISH" I could do like you guys do and set it on KILL and run mid 10 sec runs...

On the + plus side of what I do is I have won enough $$ this yr to cover my racing costs.. and "IF" I ever win a big payout I just might go to a Supercharger or Turbo...

I know the feeling of going fast as I did have a D/A back in the 90's when I had more play $$

Enjoy and good luck

LS1LT1

Congrats on the 10s.




Not necessarily.
I went 10s with not all that much more than you have done to your car right now.
But a blower or cam or stroker (or all of the above ) does make it much easier to accomplish, especially in the warmer months.

Joe_G

If you don't have money it takes a lot of practice!

Op glad you met the goal before your track closes!

I read the facebook and other news on the track. I hope you guys can keep it open!

turbotuner20v

I can understand the draw for bracket racing... to be honest though, I'm not sure how much challenge there is driving a relatively stock car w/ an automatic transmission down the 1/4 mile.

I will say though that I'd love to have an auto so I could throw in a cam and meth and hit a 9 second pass, but I do enjoy the 6spd even if it's a challenge at the strip.

turbotuner20v

Thanks I really hope they stay open, but at least I got my passes in while they were in 'ignore the 11.49' rule

Tsab

A switch to bias ply tires might yield you a better 60 ft time since they have a little more give in the side wall. Try some different air pressure settings and see how the car reacts. Really, all you can do is practice to get better. What clutch is in the car presently ?

turbotuner20v

It's the stock clutch w/ ~11,000 miles and a season of NA passes last year.

The motor is totally stock too, just bolted on a procharger kit I got a deal on.

It seems like I can only get down to a 17" rear wheel, which limits my bias ply options. I was looking at the Hoosier quick time pros, but they only go up to 16's.

Tsab

With that power level you will probably need to replace that clutch soon. Switching to a dual disk may help that 60' time. There are some very good dual disks on the market presently which will hold that power level very well.

What do you have for a Harmonic Balancer ? I know my stock one gave up after about 1 1/2 seasons. If you run a stick car with a blower this is important as well. If you track the car on a regular basis it will give out, its just a matter of when. ATI makes a good balancer which will hold up to all the loading / unloading on the belt drive.

LS1LT1

When trying to eek out every last thousandth of a second on a track with marginal traction, it's a hell of a lot more difficult than many give it credit for. On a day when my car has 11.0s in it (such as last Friday), only the first few 11.3s/11.2s came easy, anything quicker took a lot of work/careful attention to detail.
But yes, compared to trying to do the very same with a manual it is far less challenging of course.

Vetter 1

Congrats!

larry00

Doing more with less is always a challenge !

jpee

Granted it is a LOT harder to get a 6M to 60' as well as a A6 or A4... Its also a LOT harder to be "Consistent" and run the exact same ET run after run... "That was my point"

On any given race day, I get to make one or 2 "time trials" (example I run 12.08 and 12.06) those runs were made at 9-10 am ...

Not its 12 noon and the air temp is hotter, the humidity has changed (up or down) the track is hooking BETTER... but the air is slower..

I have to race a 13.40 car so what should I put on my window 12.06, 12.07, 12.08 or "hold a little and dial 12.11 (if I spin)

Now I also have to have an .040 light to have a legit chance to win...and I only have to do that 5-6 times to win the race...

"YES" its is a helluva" lot easier to launch an "automatic" as compared to a stick car...

But speaking "ONLY for MYSELF" ... I think I'd get board just chasing a quicker ET... There are many many runs where I could have run quicker, but had over a car length lead, and tapped the breaks to avoid breaking out....

I don't think it matters if your chasing a "new best" or a class win in bracket racing.. "Its all good"

Try to make 4-5 runs and cut a .040 or better light.. just for laughs and see how well you do??

LS1LT1

True.







100%
I index/bracket race during the regular season and then sometimes do a little 'ET chasing' at the end of it all...a bad day on the track still beats most good days off of the track LOL.

Eric Fischer

I can. Just add heads and cam to your existing setup and you are there.