Down on Power
#1312198
09/29/12 12:38 AM
09/29/12 12:38 AM
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Joined: Jan 2005
Posts: 866 Winnipeg ,Mb. CA.
chryco
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super stock
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super stock
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Winnipeg ,Mb. CA.
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I had the car out last weekend testing a new converter and really think my et and mph should have been better. My 2800# Dart with a 557" aluminum hemi .750" lift cam , 12:1 comp, tweeked heads , Barton intake w/1150 , Dyno`d @ 875hp @7000 / 750ft.lbs @ 5200 ran 9.71 @ 139.4 . The car felt like it was running strong and seemed to launch OK with the new converter ( Neal Chance custom 9" 5400 stall )and trans brake 1.39 60' . I think there`s more , but where ??? Ideas thought? Chryco
Last edited by chryco; 09/29/12 10:10 AM.
Gas is fer washin' parts ....Alky`s fer drinkin' ...Nitro`s fer Racin'!
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Re: Down on Power
[Re: jamesc]
#1312200
09/29/12 01:10 AM
09/29/12 01:10 AM
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Joined: Feb 2003
Posts: 3,456 Out West
408strokerdart
master
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master
Joined: Feb 2003
Posts: 3,456
Out West
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Quote:
generally speaking MPH is horsepower and ET is chassis, you're slow across the board which indicates it's down on power. imho properly tuned that car should be in the 8's at >150. start from the bottom and go over everything. can you post a time card?
BTW nice car
at 2900 lbs it should be well into the 8's.
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Re: Down on Power
[Re: jamesc]
#1312201
09/29/12 01:11 AM
09/29/12 01:11 AM
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Joined: Jan 2005
Posts: 866 Winnipeg ,Mb. CA.
chryco
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Winnipeg ,Mb. CA.
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Dang ! I`ll get them posted up ASAP I think their still out in the car !!!!!!
Last edited by chryco; 09/29/12 01:12 AM.
Gas is fer washin' parts ....Alky`s fer drinkin' ...Nitro`s fer Racin'!
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Re: Down on Power
[Re: chryco]
#1312202
09/29/12 01:33 AM
09/29/12 01:33 AM
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Joined: Jan 2005
Posts: 866 Winnipeg ,Mb. CA.
chryco
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Winnipeg ,Mb. CA.
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Some more info : 4.10 Dana J.W. 'Glide w/ brake ladder bars , axle floaters 2 1/4" x 4" Hookers w/ 12" collector extensions BG 400 fuel pump #10 line to BG regs @9# c112 fuel MSD 7AL and Pro Billet Dist set 35deg (locked) Thanks Again ! Chryco
Gas is fer washin' parts ....Alky`s fer drinkin' ...Nitro`s fer Racin'!
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Re: Down on Power
[Re: chryco]
#1312203
09/29/12 01:39 AM
09/29/12 01:39 AM
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Joined: Dec 2009
Posts: 20,657 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,657
in a cattle trailer down by th...
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You say you were testing a new converter, what did it run with the old one? My car weighs near 2800 pounds and I know I'm not making anywhere near 875 HP.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: Down on Power
[Re: Guitar Jones]
#1312204
09/29/12 06:33 AM
09/29/12 06:33 AM
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Joined: May 2004
Posts: 3,210 robin hood country
deaks
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robin hood country
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According to the wallace calc, your present speed suggest a 9.51 with a quicker 60 ft. Based on 875 hp and 2800#, you should be running high 8,50's at nearly 160 mph. Mick
69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200# best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft best 60ft 1.36
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Re: Down on Power
[Re: Guitar Jones]
#1312206
09/29/12 08:09 AM
09/29/12 08:09 AM
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Joined: Jan 2005
Posts: 866 Winnipeg ,Mb. CA.
chryco
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Winnipeg ,Mb. CA.
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The old converter was in my opinion a screw up on the part of the manufacturer even though I gave them the complete list of specs , they sent me a 4600 stall 9" . My 60' went from 1.45 to 1.39 NOT what I`d expected BUT an improvement just the same.Last time out there was a lateral cross wind 35 - 40 mph and I ran the 9.71 The previous time out VERY humid and hot with the old converter I went 9.74 both at the same MPH 139. Which is why I thought I`d have had bigger gains with the new converter. Thx chryco
Last edited by chryco; 09/29/12 08:14 AM.
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Re: Down on Power
[Re: chryco]
#1312208
09/29/12 08:28 AM
09/29/12 08:28 AM
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Joined: Jan 2005
Posts: 866 Winnipeg ,Mb. CA.
chryco
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Hey ! What about hood scoop to carb clearance? There`s probably 3" above the air horn to the scoop. Again , there`s no miss or hint of actual power loss other than what the dyno results would suggest. Chryco
Gas is fer washin' parts ....Alky`s fer drinkin' ...Nitro`s fer Racin'!
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Re: Down on Power
[Re: chryco]
#1312209
09/29/12 08:44 AM
09/29/12 08:44 AM
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Joined: Nov 2009
Posts: 2,177 ill
dennismopar73
top fuel
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top fuel
Joined: Nov 2009
Posts: 2,177
ill
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I don't believe the dyno #s are correct!! Running 9.70s, everyone says it should be a sec faster, that thing , if it is not laying down, misfiring, boogging ,blowing the tires off , and tuned way out , those dyno # are wrong, Something amiss in the build of the motor!! Get a leak down on the motor after it is hot!! see what the # tell you then J M O
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Re: Down on Power
[Re: chryco]
#1312213
09/29/12 09:47 AM
09/29/12 09:47 AM
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Joined: Apr 2005
Posts: 2,128 Salt Lake City
camastomcat
top fuel
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top fuel
Joined: Apr 2005
Posts: 2,128
Salt Lake City
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Quote:
Hey ! What about hood scoop to carb clearance? There`s probably 3" above the air horn to the scoop. Again , there`s no miss or hint of actual power loss other than what the dyno results would suggest. Chryco
I'd like to hear the tourque nunmbers at what RPM. Also where is your timing, rear gear, jetting and carb size? what RPM are you going through the traps? Head flow numbers would help. There's more there for sure but the combo needs to be right. I'll go back over your post to see if I missed anything, but it takes around 950HP to run 8's at sea level
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Re: Down on Power
[Re: dennismopar73]
#1312215
09/29/12 10:16 AM
09/29/12 10:16 AM
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Joined: Jan 2005
Posts: 866 Winnipeg ,Mb. CA.
chryco
OP
super stock
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OP
super stock
Joined: Jan 2005
Posts: 866
Winnipeg ,Mb. CA.
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Quote:
I don't believe the dyno #s are correct!! Running 9.70s, everyone says it should be a sec faster, that thing , if it is not laying down, misfiring, boogging ,blowing the tires off , and tuned way out , those dyno # are wrong, Something amiss in the build of the motor!! Get a leak down on the motor after it is hot!! see what the # tell you then J M O [/quote
Here`s the sheet..........
Gas is fer washin' parts ....Alky`s fer drinkin' ...Nitro`s fer Racin'!
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