max 65 mph ?
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Senior User
Joined: Sep 2010
Posts: 495
Likes: 0
From: Florida
max 65 mph ?
is 65mph normal max speed i mean the peadle is to the floor at 65 empty no trailer or load .Is there something that needs to be adjusted or is that normal ? Because on 91 superdutys post about the fan clutch IDIdieseljohn posted a vid and his truck was doing 80!
F-350
7.3L (NON-TURBO)
c6 auto tranny
xlt lariate
dually
EXT. cab
F-350
7.3L (NON-TURBO)
c6 auto tranny
xlt lariate
dually
EXT. cab
Fleet Owner
Joined: Jul 2006
Posts: 20,322
Likes: 789
From: Mi'kma'ki
i forget what the f-superduty had for gearing options but its lower than 4.10.like 4:88 or 5:something for options.
she's an f450,made for pulling and hauling like she means it truck.
with a c6 3 speed/no od,she's gunna scream.
im surprised you took her up to 65.she must of been talking back at ya.
stick to 45/50 for any sort of fuel economy,if you can help it at all.
oh nevermind.you first called it a super duty,then say f350 and xlt lariate.
never mind me.
she's an f450,made for pulling and hauling like she means it truck.
with a c6 3 speed/no od,she's gunna scream.
im surprised you took her up to 65.she must of been talking back at ya.
stick to 45/50 for any sort of fuel economy,if you can help it at all.
oh nevermind.you first called it a super duty,then say f350 and xlt lariate.
never mind me.
Postmaster
Joined: Jun 2008
Posts: 2,500
Likes: 2
From: Michigan
is 65mph normal max speed i mean the peadle is to the floor at 65 empty no trailer or load .Is there something that needs to be adjusted or is that normal ? Because on 91 superdutys post about the fan clutch IDIdieseljohn posted a vid and his truck was doing 80!
F-350
7.3L (NON-TURBO)
c6 auto tranny
xlt lariate
dually
EXT. cab
F-350
7.3L (NON-TURBO)
c6 auto tranny
xlt lariate
dually
EXT. cab
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Lead Driver
Joined: Dec 2006
Posts: 6,496
Likes: 94
From: So. Jersey
Exactly! NJ speed limit is 65mph on some highways, and a restriction of 55mph if towing a trailer. Most don't follow them though.
Senior User
Joined: Mar 2009
Posts: 141
Likes: 1
From: Houma,Louisiana
Find the tag on the rear axle and see what gear ratio it is. It sounds like you have a low gear axle and that combined with the C6 will make for a low speed top end.
Cargo Master
Joined: Oct 2008
Posts: 3,330
Likes: 13
From: Eaton, CO
I recently learned my IDI will go 80mph. The motor sounds excellent at those RPMs too.
Yesterday I saw a bricknose with SuperDuty clear as day below F450 Diesel. I thought it was a one ton at first.
Originally Posted by '87F-2504X4
They didn't start making the Super Duty until the '99 year model so I don't think your truck is a Super Duty.