65 Mph Power!
09-06-2008, 03:59 PM
#20
Registered User
Join Date: Sep 2006
Location: terre haute IN.
Posts: 99
Likes: 0
Received 0 Likes
on
0 Posts
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.
09-06-2008, 04:29 PM
#21
Registered User
Join Date: Apr 2007
Location: Central Mi
Posts: 666
Likes: 0
Received 0 Likes
on
0 Posts
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
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
Lets just say a supercharged pontiac gtp dont run that fast in a staight line
09-09-2008, 12:37 AM
#23
Registered User
Thread Starter
Join Date: Oct 2005
Location: socal
Posts: 453
Likes: 0
Received 0 Likes
on
0 Posts
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.
09-09-2008, 12:47 AM
#24
alwaysonDTR
Join Date: Dec 2007
Location: Keizer, oregon
Posts: 2,551
Likes: 0
Received 0 Likes
on
0 Posts
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.
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.
09-10-2008, 12:41 AM
#25
Registered User
Thread Starter
Join Date: Oct 2005
Location: socal
Posts: 453
Likes: 0
Received 0 Likes
on
0 Posts
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?
i would prefer not to turn up the pump as i do not want to spend the money on a pyro.
any ideas?
09-10-2008, 12:50 AM
#26
alwaysonDTR
Join Date: Dec 2007
Location: Keizer, oregon
Posts: 2,551
Likes: 0
Received 0 Likes
on
0 Posts
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
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
09-10-2008, 10:11 AM
#27
Registered User
Join Date: Apr 2007
Location: Central Mi
Posts: 666
Likes: 0
Received 0 Likes
on
0 Posts
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.
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.
Thread
Thread Starter
Forum
Replies
Last Post
treemonkey
12 Valve Engine and Drivetrain
2
06-17-2009 02:06 AM
Mark Hodowanec
3rd Gen Engine and Drivetrain -> 2003-2007
9
11-13-2004 11:02 PM
Mark Hodowanec
3rd Generation Ram - Non Drivetrain - All Years
4
11-10-2004 06:41 PM