Re: fast 60 ft, slow mph HELP
[Re: Racebuddy]
#1680605
10/01/14 12:35 PM
10/01/14 12:35 PM
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Joined: Jun 2006
Posts: 5,155 CT
GTX MATT
master
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master
Joined: Jun 2006
Posts: 5,155
CT
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Are you sure the fuel system is adequate for E85?
Now I need to pin those needles, got to feel that heat Hear my motor screamin while I'm tearin up the street
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Re: fast 60 ft, slow mph HELP
[Re: Racebuddy]
#1680606
10/01/14 12:35 PM
10/01/14 12:35 PM
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Joined: Jan 2003
Posts: 11,701 Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,701
Portage,michigan
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What cam/ heads/ gears.... Combo?
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: fast 60 ft, slow mph HELP
[Re: Racebuddy]
#1680607
10/01/14 12:49 PM
10/01/14 12:49 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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If you did install the cam retarted it will make the engine lazy on the low end... I usually install my cams advanced from 4* to 6*... on my 416 in my street rod I installed it straight up at 105(its a 105 LSA cam).. I didnt want to make any more torque to raise the conv stall any higher.. its 5000 with 500 ft lbs of torque and I made 535 torque
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Re: fast 60 ft, slow mph HELP
[Re: GTX MATT]
#1680609
10/01/14 01:44 PM
10/01/14 01:44 PM
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Joined: Aug 2003
Posts: 43,007 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Quote:
Are you sure the fuel system is adequate for E85?
If you can't jet the carb. up enough(fatter) to slow the car down it is probally the fuel system. Or maybe it is to fat now I would try jetting it up two jet sizes and see what happens on the MPH If the car picks up all the way down the track your on the right track, if it slows down all the way down the track it is to fat now I switch to E 85 several years back and dyno tested two different carbs, two gas and one E85, the E85 carb was real sensitive to the jetting on the dyno, one jet size either way made a measureable difference, it like 91 in the front with a power valve and 101 in the rear That was at 4300 Ft. in Klamath, OR, it came with 93 and 103 I need to jet it up some more now that the motor is in the car, I put it back to 93/103 so far BTW, the E85 I had done the tuning with ended up testing to be winter mix E75, not E85 Good luck, let us know what you find
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: fast 60 ft, slow mph HELP
[Re: Cab_Burge]
#1680610
10/01/14 02:45 PM
10/01/14 02:45 PM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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At 100 mph in the 1/8 I am curious to know the 1/4 mph and et ? My 63 street car runs 100 mph in the 1/8 but with only a 1.50 sixty on leaf springs at 3700 lbs so you have a strong eng so I wander about your 1/4 times ? Ron
Last edited by 383man; 10/01/14 03:10 PM.
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Re: fast 60 ft, slow mph HELP
[Re: Racebuddy]
#1680611
10/01/14 04:07 PM
10/01/14 04:07 PM
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Joined: Dec 2006
Posts: 1,178 Indy
FlyFish
super stock
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super stock
Joined: Dec 2006
Posts: 1,178
Indy
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What trans, rear gear ratio, and tire size?
I think the 60' timers are a little off at Muncie, but not that far off. My car does about 100 in the 1/8 too, but I'm a full tenth slower than you in the 60'.
Edit: Also, what fuel pump, filter, and line size?
67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
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Re: fast 60 ft, slow mph HELP
[Re: Racebuddy]
#1680612
10/01/14 06:07 PM
10/01/14 06:07 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Another thing is, you might be a bit too much advanced on the cam.. its pulling the wheels easy enough so I doubt its retarded.. what kind of RPM do you launch at and what does it rev strong to
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Re: fast 60 ft, slow mph HELP
[Re: nss guy]
#1680616
10/01/14 10:06 PM
10/01/14 10:06 PM
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Joined: Mar 2006
Posts: 9,791 MI, usa
dvw
master
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master
Joined: Mar 2006
Posts: 9,791
MI, usa
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I have had some no name converters that were over achievers in 60 ft and under achievers down track. When it was tightened it up with a good converter, slowed down the 60 ft and the car was quicker in the rest of the run. I'll bet loose 8" and lot of gear? I missed the fact that the converter came from Lenny. That changes my idea completely. In this case That area would be well taken care of. Doug
Last edited by dvw; 10/02/14 10:22 PM.
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Re: fast 60 ft, slow mph HELP
[Re: WHITEDART]
#1680619
10/01/14 11:40 PM
10/01/14 11:40 PM
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Joined: Dec 2006
Posts: 2,094 Byron, NY
W.I.N. Racing
top fuel
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top fuel
Joined: Dec 2006
Posts: 2,094
Byron, NY
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What rear gear ???? is it out of power or out of RPM at the 1/8th????
'01 P1500, Blown/Inj BAE,/Veney ,Bruno/CS2,Dana 60 '01 Dodge 3500 S Cummins Auto, Fresh air kit, 4" Exhaust, '05 Dodge Magnum R/T - Too Much to list '60 Willys CJ5 '01 International LPX - Project,DT466, Allison '64 Plymouth Valiant, Inj 528 Hemi, 2spd
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Re: fast 60 ft, slow mph HELP
[Re: StealthWedge67]
#1680620
10/04/14 02:47 AM
10/04/14 02:47 AM
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Joined: Aug 2005
Posts: 989 WI, USA
67dodge67
mopar addict
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mopar addict
Joined: Aug 2005
Posts: 989
WI, USA
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Quote:
So much for the "8.75 rears won't survive in B-Body race-cars" argument.....
Ohhh don't get me started on the 8 3/4 issue... ugggghhhhh.... my Dana is, to say the least, lovely that old 8 3/4 was an EXTREME headache. Sorryyyy..... not for me, glad I did the HUGE upgrade.
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Re: fast 60 ft, slow mph HELP
[Re: MR_P_BODY]
#1680621
10/06/14 11:04 AM
10/06/14 11:04 AM
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Joined: Oct 2004
Posts: 611 Muncie
Racebuddy
OP
mopar
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OP
mopar
Joined: Oct 2004
Posts: 611
Muncie
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Thanks for responses. Some additional info:
cam is 600/600 Comp roller with 265/272 duration. 108 CL Have run this cam in other motors, usually straight up on the timing chain.
i tried running with hood, without, with air breather, w/out, no difference. I did think it may have been lack of air but I tried all options on that.
It has a 4:88 gear with 29 tall Goodyears. Launch started at 3700 and is at 3300 now with sky high launches.
Converter is not shot, it is brand new out of the box. W-2 race heads, some porting work. 2 inch header tubes,
it is difficult to even hear the motor rpm change when shifting. It sounds as if it is wound up the whole way down the track.
It is difficult to start when cold, kicks starter hard. after warm up, starts ok but not great. the 32-33 timing is where it runs the best mph, but it does not pull hard like this stroker should. I have had 365's run faster mph.
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Re: fast 60 ft, slow mph HELP
[Re: 67dodge67]
#1680622
10/06/14 11:09 AM
10/06/14 11:09 AM
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Joined: Oct 2004
Posts: 611 Muncie
Racebuddy
OP
mopar
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OP
mopar
Joined: Oct 2004
Posts: 611
Muncie
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Fuel system is 8 AN line going to regulator. 2 6AN going to carb. Has an Aeroquip fuel pump. pressure at 6.5 Has a NOS line at 6AN but haven't sprayed anything with this motor yet. It has a Holley black pump for it.
I can only footbrake the converter to about 3ooo rpm before it pushes thru the 4 wheel disc brakes. I do not think converter is loose at all.
The motor sounds as good as any I have heard but there is no pulling power down track.
It does 4.38 in 330 and 6.73 best in 1/8. 1/4 mile time...haven't stretched it there yet really.
There is no way I am out of gear by the 1/8 mile.
Victor Jr. intake, 850 E 85 carb, new
Worth trying a different coil?? Have a good one but maybe the best available would help
Last edited by Racebuddy; 10/06/14 11:13 AM.
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