Cam Only m6 stuck at 11.1's

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Old 07-04-2009, 07:54 AM
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Default Cam Only m6 stuck at 11.1's

short-
year ago it ran some 11.2s, after a lot of passes it went a 11.1 @123 with the clutch slipping, and the car light. I put a new clutch in and added a little weight 130-150? with a rollbar, putting the full interior back in

long-
https://ls1tech.com/forums/drag-raci...ch-diet-6.html

Last few tims on DRs can alot of 11.4s and a 11.38 off 1.6 60's

Now on drag wheels all ready to go. Thought it should go faster,


I thought it should go faster then this, this is the order of the clock. I gotta check but I think thats my 1st, with I wasn't happy with. It yanked the wheels and I turned a little bit. So I pullled 2nd short at like 6K? (shiftlite is 6600) then pulled every gear early (6k?) But that was the feaster run? If so I need to lower the shift light and see if if it picks up. I'll check my dyno but I think 6600 was peak power. The other runs were dead on shift hitting gears. Biggest wheelie was the 3rd run witch was the slowest 1.599, I'll get the vid, it was 8inchs maybe a foot, but for like 8-10 feet and bounced back up. So tightened the front shocks form 0 to 2. It helped that it wasn't as big, hoping the car went forword, but it didnt really show up. The I wanted to get some wheel speed and try to get the slicks to spin 1-3 times. So went form 15 to 16.5 psi. another (1.556) The car run the same numbers? I think the better 60's should have showed up in the et's more.
anyone have any ideas??

DS2's -43 psi
28x10.5x15S @15 (16.5 last pass)
2step @ 6500 every pass (maybe bogging, tring not to dump the clutch tho)


hopfully will have a vid form a local soon, I can see alot in that

Last edited by studderin; 07-04-2009 at 08:18 AM.
Old 07-04-2009, 02:16 PM
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Johnny,
Why don't you try a different rear tire just for comparison? I think your 28's are taking away too much of your gear for NA. You are welcome to try my 26" ET Street radials on stock Z wheels. Put your skinnies up front, and it just may be the ticket. You also need to know that if it was October, you would be right on the verge of 10's as your car is based on a significanly better DA.

Try the smaller tire with a 5800-6000rpm launch maybe?

Jason
Old 07-04-2009, 03:08 PM
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I dont think I can do the rpms for a radial 26 and 4:30s, maybe a ETdrag that grew to a 27.

26.0


6000 108
6100 110
6200 112
6300 113
6400 115
6500 117
6600 119
6700 121
6800 122
6900 124
7000 126



27

6000 112
6100 114
6200 116
6300 118
6400 120
6500 121
6600 123
6700 125
6800 127
6900 129
7000 131

Last edited by studderin; 07-05-2009 at 09:06 AM.
Old 07-04-2009, 03:48 PM
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I'd say it would be worth a try. I also think you may be shifting short in almost every gear. I used to see the most mph out of my 396ci motor when I ran 3rd gear out to 7000rpms (1st and 2nd gear I shifted at 6700). That is just what I found that my car liked.

If your car is peaking at 6600rpms, you should try shifting at 6900-7000rpms. Every combo that I've had over the years ran the best ET and MPH shifting 200-300rpms AFTER peak power. In my opinion, this is even more important for you since you are a small cube, stock head motor.

So if it were my car, I'd first try shifting right up there around 6900-7000 in every gear and then try a 26" ET radial. I think with weather like this morning when you ran, you'd see the 10 sec pass. You are welcome to borrow my tires if you want.

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Old 07-04-2009, 04:00 PM
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What were the temps and DA? The times and date don't look right on your timeslips.
Old 07-04-2009, 05:39 PM
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nice mph you are in the same boat as rob...those m6s are a pain in the *** to launch and get a good 60ft...

come to the DARK SIDE LUKE, it isnt so bad over here...i hear people are running 1.38 60fts cam only with stock 3.23 10 bolts...but that is only a myth...good luck man you will get high 10s when the cold air comes in...
Old 07-04-2009, 06:31 PM
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I'll get the temps and even the DA, mike form newera was there with his 10' SS (thats weird to type?) just put ARH on it I think he knew that info.
I got this off weather.com beofre I left to go to the track, But it did start to rian on the way down. And they stopped 2-3 times for sprinkles, ther was a full rainbow out, it was sunny, but rain clouds.

http://www.weather.com/weather/hourb...hrly_graph_tab

4:30 pm

Mostly Cloudy
69° F



7:30 pm
Mostly Cloudy

67° F
Mostly Cloudy
67° F 10% rain
72% hum. wind From WNW 13 mph

ya the date was the 3rd, but it says the 4th. And the printer was putting this line like every 2inch on the slips?
Mike hasn't scanned my car with HPtuners at the track all year. The lite is set at 6600, I'm sure the 1-2 is 68-6900 and 6700 of the others. I should try moving it around, I havnt sence it was SI good call jay, oh your old 396 LT1 was there....

no auto, thats boring, and
Old 07-04-2009, 06:38 PM
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The D/A was 2800
Old 07-04-2009, 07:39 PM
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I think you are shifting way too early. I shift @ 7200 with my peak @ 6500 car picked up 1-2 mph doing so... Last time I shifted 7400 and it really didnt gain any mph, or lose any so I will probably back down to 7200 again.

26's should work, 27's ideal..

Im running 28's with a 4.56 gear.
Old 07-04-2009, 08:16 PM
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My point exactly.

Jason
Old 07-04-2009, 09:08 PM
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With the six speed you need alot of gear to overcome that shitty 2.66 first I'm running 5.38's with a 29.5x9.0x15 s slick and I'm going through at 7500rpm. My car peaks about where yours does 6600 I shift at 7500 rpm try it, it will pick up. I suggest more rear gear. Granted I do have a jerico with a 3.19 first gear, and it helps e.t. over the six speed ,but more gear will help your e.t. I noticed you also said not trying to dump it. I was wondering why. I leave at 7000 rpm and let it fly. You may be bogging the motor also just some thoughts.

Going back a few years I made 431 rwhp and had 1.50 60' with the six speed in a heavy 3540 lb car. You can widdle it down alot if you work at it. The car went 11.20 at 120.

Good luck.
Old 07-04-2009, 10:42 PM
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ok, more rpms it is. I think my limiter is 7200, so I may have to have mike bump it a little. I set the shiftlite to 6800 and see what that dose, and some at 7 and see what that dose.


Tim, I should have said not, side step. More like a fast fast slip, just letting your foot up fast. Like what carteck alex talked about. With the 28s the car only put down 413 whp, even on the DR @ 6K it hooks and bogs the motor down. The stiff ETdrags are almost too good, and bog the motor with the new clutch. I wanted to go up in pressure and see if I could get them to spin a little, and not bog the motor. Witchout having to ride the clutch to much, it's a very small window.
Old 07-05-2009, 09:07 AM
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I was off on the peak power RPM, this was from a few weeks ago.


Last edited by studderin; 07-05-2009 at 09:16 AM.
Old 07-05-2009, 11:25 AM
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DA was +1870ft we must use a different Calculator

http://wahiduddin.net/calc/calc_da.htm

good luck breaking into the 10s...
Old 07-05-2009, 02:43 PM
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Originally Posted by studderin
ok, more rpms it is. I think my limiter is 7200, so I may have to have mike bump it a little. I set the shiftlite to 6800 and see what that dose, and some at 7 and see what that dose.


Tim, I should have said not, side step. More like a fast fast slip, just letting your foot up fast. Like what carteck alex talked about. With the 28s the car only put down 413 whp, even on the DR @ 6K it hooks and bogs the motor down. The stiff ETdrags are almost too good, and bog the motor with the new clutch. I wanted to go up in pressure and see if I could get them to spin a little, and not bog the motor. Witchout having to ride the clutch to much, it's a very small window.
If the car is bogging either leave higher or put some air in the tires. Its a fine line to get it right . I do not believe in slipping the clutch at all if the car works right there is no need for that. With me I leave on the floor and get my foot off the clutch as fast as I can. I've had a 1.48 so far which isn't very good in my mind .I should be in the high 1.30's or low low 1.40's ,but it all just takes time.

Even at 413 rwhp nothing to sneeze at I'm at 424 rwhp we are very close as you can tell by the mph. I think my car will go 126 on a good air day at 3250 lbs. At 123 the power is there to get you in the 10's.

I wish I could run a fast intake and t/b ,but the rules say no,hell I wish I could port my stock t/b lol.

Last edited by TOSTO RACING; 07-05-2009 at 05:45 PM.
Old 07-05-2009, 02:47 PM
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One more thing you need 4.88's in that car
Old 07-06-2009, 04:27 PM
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Originally Posted by TOSTO RACING
One more thing you need 4.88's in that car
minimum 4.56's
Old 07-06-2009, 07:03 PM
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Ever thought of a 2 step? Was at our track this past weekend, don't know what his 60ft. was or the HP, but he was running 7.2s, left off the floor & a lift of the botton, he was running 5.13s or 5.38s, i'm sure he was in the low-mid 1.4s, ran out with some nice wheelies, it looked like 29" DRs, don't even know what he shifted at, but it was tapped out in 4th. at the 1/8. So i would say definitly get a steeper gear if shifting higher doesn't help much.
Old 07-06-2009, 09:48 PM
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Originally Posted by studderin
2step @ 6500 every pass (maybe bogging, tring not to dump the clutch tho)





jay, I would like to tray a smaller tire but I dont think a 26 radial would be enoght for my setup.
Old 07-06-2009, 10:18 PM
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Enough in what way.....the launch or the top end speed? I doubt these will hamper your launch at all, and you are good to 126-127mph at 7000rpms. Plus, you'll have more effective gear without jumping to a numerically higher ratio. All I am saying is that it's certianlly worth a try. You may be suprised

Even if you tried using the 26" radial just for 1/8 mile for a few passes, you'd still have a direct comparison to draw some conclusions from.


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