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Old Oct 29, 2002 | 05:08 PM
  #1  
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Default Join my quest for 10's

What gearing/tire choice should I go with on my quest for NA tens in the spring....
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Old Oct 29, 2002 | 05:11 PM
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Default Re: Join my quest for 10's

You need around 30-40hp or 300# to get there, I don't think gearing / tire size will matter much. 4.10s with 10x15x26" slicks should be fine. 4.30s if it makes you feel fuzzy inside.
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Old Oct 29, 2002 | 05:50 PM
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Default Re: Join my quest for 10's

I agree with Terry. Losing the weight or adding the power will make your odds more solid and your consistency higher. There are also other variables such as better air and working on better short times, but sometimes these variables are hard to always have and aren't as consistent, where the weight being gone and/or the extra power being there is solid.

I think alot of people over look gearing and tire size. You are going in the right direction I think. The height of the taller tire is going to give you a bigger patch and help your traction and drop your short time. I also like deeper gears for us M6 guy's. I think it helps with the foll out period of first gear. I know you guy's already know all this stuff, but it is good to kick ideas around. I liked Mooses 4.30 27" tire set up. Just my two cents, what do you guy's think?

BTW, good luck on your quest for 10's <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Glenn
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Old Oct 29, 2002 | 06:19 PM
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Default Re: Join my quest for 10's

Back up and I will join the quest for 11's.. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> At over 3700lbs.. One day I will do it.. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
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Old Oct 29, 2002 | 07:42 PM
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Default Re: Join my quest for 10's

You gained 24 rwhp with the cam swap? What were your traps with the old 226/234 cam?
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Old Oct 29, 2002 | 08:42 PM
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Default Re: Join my quest for 10's

Of course the gearing/tire change is only a small component. Some more weight out, more tuning etc will also be done. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

I kind of like the 4.33/26 inch combo. If I ever plan to spray I am only a tire swap to 28 inch slicks away.

4.56/28s will be more consistent at marginal tracks with the added sidewall and rollout of the taller tire.

Gearing makes a bigger difference in a M6 than an A4. You dont have the torque Multiplication and flash of the converter off the line. It is all rpm and gearing for us M6'ers.

I am looking at gaining no more than 1 tenth and 1mph from the gearing/slick/traction change. The other 2 tenths will be weight, tuning and suspension setup etc. I want to be able to run consistent high 1.4 to low 1.5 sixties. Need your opinions on what would be the best choice for those kinds of sixties.
Thanks again,
Chris
ps- I gained just over 1.7mph from the cam change but I raced in worse DA since the swap. (with the six speed in the car.)
I would guess the gain is about 2mph in similar weather.

<small>[ October 29, 2002, 08:47 PM: Message edited by: Chris ARE 360 ]</small>
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Old Oct 29, 2002 | 08:55 PM
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Default Re: Join my quest for 10's

I like the big gear/bigger tire, personally... Good luck in your quest. It starts getting more and more difficult to find that last .1sec the quicker you go! <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />
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Old Oct 30, 2002 | 01:00 AM
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Default Re: Join my quest for 10's

You are definitely going to have to 60ft in the high 1.4x or 1.50 range to run the number you are looking for. I personally like the 4.56/28 inch tire combo-the extra sidewall of the 28 inch slick
helps. What rpm does your combo peak at and does it fall sharply after its peak? A friend of mine has 4.56's and m/t 28x10.5x15's on his H/C '01 SS.
His best so far is 11.26@120.55 with a 1.50 60ft, his car weighs in at a portly 3550 lbs. He goes through the traps at around 6600rpm. His car makes peak power at 6600-4.88's probably would be ideal with his setup, but he is planning on spraying the car. I would start with 4.56's and go up from there. I don't think that the car would hook CONSISTENTLY on a 4.30/26x10 combo, IMO
the 28's are a must for a stick car.
Good luck on your quest for 10's, I hope to join you in the spring. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
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Old Oct 30, 2002 | 06:37 AM
  #9  
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Default Re: Join my quest for 10's

Thanks guys <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

My car peaks at 6300-6400rpm but carries over 400RWHP from 5200rpm to almost 7000rpm. (Area under the curve <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" /> )

I think I am going to go with the 4.56/28 combo. I would hate to spend the money on the 26/4.30s and end up not hooking.
Cheers,
Chris
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Old Oct 30, 2002 | 08:08 AM
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Default Re: Join my quest for 10's

You are so close now, this is a real simple one, and only requires one change. Switch to the ET Drags, same size as the ET Streets you are now running.

My experiment with tires this month:
Worn ET streets=1.59
newer QTP=1.50
Newer ET Drags=1.44!! <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />

You will be there with that simple change. Dont pussyfoot it off the line & you will fly. I would try that first, before messing with the gears. Good luck.
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Old Oct 30, 2002 | 08:09 AM
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Default Re: Join my quest for 10's

I think that you need to go with 30x9x15 slicks and 5.13 gears. <img border="0" alt="[devil]" title="" src="graemlins/gr_devil.gif" />

I have run a 1.49 60ft, 11.07 ET at 123 MPH getting off the gas at the top end. My weight was 3415lbs. <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" />

With the added 85 lbs this weekend at the Thunder Racing shootout, I am hoping to run in the high 10's. <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />

Good luck with your quest. <img border="0" alt="[angel]" title="" src="graemlins/gr_angel.gif" />

Iam in the same boat as you. I want that 10 second time slip so bad I can taste it. <img border="0" alt="[hail]" title="" src="graemlins/gr_hail.gif" />

Coach

<small>[ October 30, 2002, 08:10 AM: Message edited by: Coach 02 M6 Z/28 ]</small>
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Old Oct 30, 2002 | 08:16 AM
  #12  
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Default Re: Join my quest for 10's

5.13's are a little extreme for me right now <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

The car is a daily driver hehe <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

hmm.. Maybe I will try the full slick (26x10x15 Hoosier) first in the spring with the 4.10s and then if it doesnt help a great deal go up in gear. (I already have 28 inch slicks, though they are the medium compound. <img border="0" title="" alt="[Sad]" src="gr_sad.gif" /> )

I am only launching at 5000-5500rpm now, I will up the launch rpm to ~6500rpm and see if that combined with a stickier tire is enough for high 1.4 Low 1.50 sixty...
Thanks again guys, lots of good information for me to think about <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Cheers,
Chris
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Old Oct 30, 2002 | 11:52 AM
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Default Re: Join my quest for 10's

Chris,

The only thing about the Hoosier tire is that they do not make a good stick tire. I have tried 2 different compounds they have with no luck at all. <img border="0" title="" alt="[Mad]" src="gr_images/icons/mad.gif" />

I have had great success with the Goodyears and the M/T. <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />

This is only my opinion. <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" />

Good luck to ya. <img border="0" alt="[angel]" title="" src="graemlins/gr_angel.gif" />

Coach

PS. My 5.13 geared Hot Rod is a daily driver also. I put 230 miles on her driving to work last week. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
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Old Oct 30, 2002 | 03:09 PM
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Default Re: Join my quest for 10's

hehehe <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
so you find the ET Drag a good six speed slick? Takes the shock of launching well?
hmmm that is very interesting <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Thanks,
Chris
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Old Oct 30, 2002 | 07:28 PM
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Default Re: Join my quest for 10's

chris take a look at www.ragingmotorsports.com website. on the main page (a friend of mark's)there is a pic of a 6 speed, full stock weight, full muffler exhaust n/a car pulling 1.50 60' times with et drags and big gears. i would really really really consider the 28" drag and 4.56 gearing combo. it is not bad at all on the highway with the 6 speeds. i think that is your ticket (with a little weight reduction) to 10s.

by the way, has anyone run 10.9x on head and cam 6 speed?
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Old Oct 30, 2002 | 08:47 PM
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Default Re: Join my quest for 10's

I am not sure about the 10 second HCI six speed times. I dont know if anyone under 382 ci has done it all motor with the six speed.

9Ball went high 11.0s with the 232/112LSA cam in his 382 MTI all-bore.

Yeah I think I'll give the 4.56s and 28's a shot. <img border="0" alt="[devil]" title="" src="graemlins/gr_devil.gif" />

I also found out my MAF has been NON-FUNCTIONAL for the past couple of months LOL <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

The power wire to the MAF was severed in behind the loom. I was getting a low voltage code to the MAF and now know why!

I fixed it and I picked up a SH!TLOAD of power in the midrange and some up top too. I cant believe I ran as fast as I did with a totally dead MAF. I am going to have to redyno and retune to make sure AF and everything looks good. If I can pickup another 10-20RWHP with some more tuning and functional MAF, that with traction and gear change plus another ~150 pounds should be high tens at 123-124mph.
Cheers,
Chris

ps- I think Coach is going to beat me to tens <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
I am looking forward to hearing the results from TR shootout <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

<small>[ October 30, 2002, 08:50 PM: Message edited by: Chris ARE 360 ]</small>
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Old Oct 30, 2002 | 09:19 PM
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Default Re: Join my quest for 10's

Chris I feel ur car would benefit from the larger tire/gear combo. The taller tire will give u a bigger footprint for those 6000+ rpm launches. Don't forget to getrid of that crap Mac exhaust! I'm sure there is more power in ur ride witha good "full length" header. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
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Old Oct 30, 2002 | 10:30 PM
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Default Re: Join my quest for 10's

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by gator's 99TA:
<strong>by the way, has anyone run 10.9x on head and cam 6 speed?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">GTS SS ran a 10.66@128.42 on a 1.52 60' with a Futral Motorsports heads/solid roller cam setup. This was in +1000 DA and at raceweight of 3350.

The Futral Motorsports shop car went 10.90@126 on a 1.47 60' with heads/solid roller at a 3400 raceweight in ~600' DA.

I hope to join them in the 10s n/a very soon. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Jason
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Old Oct 31, 2002 | 03:52 AM
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Default Re: Join my quest for 10's

Definitely go with the M/t or Goodyear slicks, the Hoosiers work well for the auto guys, but I think the compound is too soft for the stick cars.
I'd say 4.56/m/t 28x10.5x15, What size rear rim are you running? I run a 9 inch rim in the rear with my Hoosier 28x10's, I will be switching to M/t's soon b/c I have switched to a 6 speed.
Check out the link that gator mentioned
ragingmotorsports.com, the car on the top is the H/C car I had mentioned before, 1.50 11.2x@120.55
3550 or so.
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Old Oct 31, 2002 | 07:18 AM
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Default Re: Join my quest for 10's

Jason, I know there are a couple of solid roller guys in the 10's under 382 ci (which I think is awesome BTW <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> )

I dont know of any hyd cammed guys there yet though. Has anyone heard of any?
Cheers,
Chris

I think I'll go with the 4.56/28x10.5 MT ET Drags. That sounds like the best setup for traction on both sticky and marginal tracks with the six speed. I am hoping to pick up a set of 15x10 aluma stars rears and skinnies.
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