Re: 60 ft calculation
[Re: dodgeram1998]
#1656883
08/09/14 11:24 PM
08/09/14 11:24 PM
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Joined: Jan 2003
Posts: 5,894 Florida
Locomotion
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Florida
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I think you're doing ok. I bracket raced a w-2 360 Challenger @ 2,800 lbs and had high 1.37 - 1.40 60's running 10.20's @ 129 - 131. If footbraking, fine tuning the squirters and pump cams may help. Tuning for a trans brake would be a bit different which I'm not familiar with. Stock and Super Stock cars usually have even better 60's for the ET for various reasons, mainly through a lot of work with everything. (Experimenting with cams, converters, gears, shocks, etc.) I've had high 1.40 60' times with 11.20's @ 115-117 weighing 3,540 lbs +, but there are harder leaving cars in Stock with similar ET's & MPH.
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Re: 60 ft calculation
[Re: dodgeram1998]
#1656885
08/09/14 11:49 PM
08/09/14 11:49 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Posts: 52,972
Romeo MI
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Quote:
Fuel is steady at 6.5. Gonna do some checkin around just seen timing was 42 backed it down to 36 now to make another pass 93 jet pri 103 sec e85 1050 mph is 130 .5
try it with just a little less timing.. with E-85 you can try more jet.. keep jetting up till you see the mph drop then back it down a couple... one thing at at time
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Re: 60 ft calculation
[Re: dodgeram1998]
#1656890
08/10/14 02:03 PM
08/10/14 02:03 PM
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Joined: Mar 2008
Posts: 5,746 Ontario, Canada
Dodgem
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Ontario, Canada
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With a 446 inch those heads and 276 roller you would probably keep picking up all the way to a 8200 shift point. and it will want lots of total timing?? How much is timing rolling back when you hit the throttle?
Last edited by Dodgem; 08/10/14 02:06 PM.
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Re: 60 ft calculation
[Re: dodgeram1998]
#1656892
08/10/14 11:19 PM
08/10/14 11:19 PM
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Joined: Jan 2003
Posts: 6,591 Canton, Ohio
Sport440
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Canton, Ohio
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Quote:
3375 w/driver 103.5 mph @ 1/8 8"flash stall @5100 convertor Is what I suspect? still sorting out as timing change from , jet change, ,shift point resulted same 1/4 only a .005 et difference mph stays 130.15 weird eh?
Your not doing to bad IMO, maybe just a touch slower then the numbers indicate.
1.38/39 is about 10.20
130.5 MPH is about 10.25
Your picking up 26.5 MPH on the back half, so thats very good IMO. Its not your vert. it seems to be working great. Have you ran at more then just one track?
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Re: 60 ft calculation
[Re: Sport440]
#1656893
08/10/14 11:41 PM
08/10/14 11:41 PM
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Joined: Jan 2003
Posts: 11,722 Portage,michigan
B3422W5
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I Live Here
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Portage,michigan
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I disagree that 1.38 equates to 10.20.. .... Way to many variables involved to make that statement. My old car(3350 race weight) most often went 1.36-38 60 foots on 9 sec passes. As another example I know 340 Ricks gen3 Challenger goes mid/ high 1.3xx while running 9.60's. Compression, suspension, weight, and other factors contribute as well. At 3375 pounds, that 1.38 would absolutely not hinder a much better time slip.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, 10.40 @127 1/4 1.41 best 60 foot 6.60 at 103.90 1/8
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Re: 60 ft calculation
[Re: dodgeram1998]
#1656898
08/12/14 01:46 PM
08/12/14 01:46 PM
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Joined: Mar 2008
Posts: 5,746 Ontario, Canada
Dodgem
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Ontario, Canada
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I set my timing at 43 but if you whack the throttle good you can see it backs up to 39 ish. You need lots of advance on that cam and lots of rpms I ran a 272/282 .700 lift 110 LSA in my 452 installed at 100 and it loved 7600 to 7800 shifts. Same combo now with 255/263 .700 lift 108 LSA installed at 103 runs same times with 7200 shifts.
Last edited by Dodgem; 08/12/14 01:47 PM.
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