1st Gen. Ram - All Topics Discussion for all Dodge Rams prior to 1994. This includes engine, drivetrain and non-drivetrain discussions. Anything prior to 1994 should go in here.

65 Mph Power!

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Old Aug 31, 2008 | 09:05 AM
  #16  
NotEnufGarage's Avatar
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From: Rocket City USA - AKA Huntsville, AL
I haven't tried yet, but I should be able to get my '90 up to about 100MPH with 3.54:1 and stock tires in 6th gear (Double OD).
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Old Aug 31, 2008 | 03:10 PM
  #17  
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From: Jottamtown, LA
I would say quite a bit more. I have seen 117 on the GPS in mine. 366 spring, 3.5 gears, getrag.
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Old Sep 6, 2008 | 03:33 PM
  #18  
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From: socal
hrmm. its got 3.07 gears so that shouldnt be an issue. guess it may be time to invest in a pyro and start tinkering
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Old Sep 6, 2008 | 03:46 PM
  #19  
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From: Quinton, New Jersey (middle of nowhere)
Originally Posted by jeepsuck
hrmm. its got 3.07 gears so that shouldnt be an issue. guess it may be time to invest in a pyro and start tinkering
However, it has no overdrive. Our non od 3.07 truck with 3200 spring tops at 93.
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Old Sep 6, 2008 | 03:59 PM
  #20  
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From: terre haute IN.
My 90 w/3.07's and the getrag i just installed w/35in tires did 120mph in 4th on the dyno. At 75 mph on the inersate the motor is lugging a bit. Dont have a tach yet but you can hardly hear the motor running.
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Old Sep 6, 2008 | 04:29 PM
  #21  
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From: Central Mi
BUT -

Don't forget drag on these barn doors...
They got a drag coefficient that resembles a flat plate ( Cd=1.25 ).

I saw a Cd for a '94 Ram 2500 listed at .500 - ours HAS to be more, they've got a tilted windshield and somewhat streamlined fenders
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Old Sep 6, 2008 | 06:22 PM
  #22  
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From: terre haute IN.
With it in 4th that is 1to1 it will do 120 easy,but dont ask me how i know Lets just say a supercharged pontiac gtp dont run that fast in a staight line
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Old Sep 9, 2008 | 12:37 AM
  #23  
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From: socal
Originally Posted by Crossy's son
However, it has no overdrive. Our non od 3.07 truck with 3200 spring tops at 93.
i would completely agree with you if not for the fact that two of my friends have 727 3.07 89's that both do better on the top end. the sister truck to mine does about 77, and the other SRW truck does 90. strangly enough, this was not so before he got a pump rebuild and some new injectors.

I changed the fuel filter and primed it with ATF to see if it would clean the injectors a lil and maybe free up some power. no dice. i will try a real life injector cleaner as well. i have little faith in the mechanic in a bottle but its so cheap its well worth a try.
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Old Sep 9, 2008 | 12:47 AM
  #24  
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From: Keizer, oregon
Originally Posted by jeepsuck
i would completely agree with you if not for the fact that two of my friends have 727 3.07 89's that both do better on the top end. the sister truck to mine does about 77, and the other SRW truck does 90. strangly enough, this was not so before he got a pump rebuild and some new injectors.

I changed the fuel filter and primed it with ATF to see if it would clean the injectors a lil and maybe free up some power. no dice. i will try a real life injector cleaner as well. i have little faith in the mechanic in a bottle but its so cheap its well worth a try.
getting full throttle travel? that makes a big difference
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Old Sep 10, 2008 | 12:41 AM
  #25  
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From: socal
Originally Posted by jeepsuck
so my 89 will only do about 67 mph with my foot jammed to to the floor. there is no more play in the throttle cable. that got me to 2 up from 65. the truck belonged to a storage place that used it to tow gooseneck trailers. Is this the result of possibly some low rear end gears(i'll see if i can find the tag) or maybe a governer?

i would prefer not to turn up the pump as i do not want to spend the money on a pyro.

any ideas?
just so nobody asks again
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Old Sep 10, 2008 | 12:50 AM
  #26  
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From: Keizer, oregon
like that will stop us

what about backing out the high idle screw to get more rpm?

its probally the low rear end gears. i dont think a gov spring would hurt it thou, your adding rpm. not really fuel
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Old Sep 10, 2008 | 10:11 AM
  #27  
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From: Central Mi
Nearly all of us has had no play in the throttle cable but found out we don't have full throttle movement. Just because there's no play in the throttle cable doesn't mean you're getting full throttle

If the throttle is not hitting the pump with the high idle screw backed out - then you don't have FULL throttle.

That's with someone INSIDE the cab pressing the throttle.
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