Does Not Rev - Ford Powerstroke Diesel Forum

7.3L IDI (Non-Powerstroke) Diesels Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

 
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post #1 of 3 Old 05-20-2010, 06:35 AM Thread Starter
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Does Not Rev

I just prchased a 1989 Intl Box Truck (28' U-Haul) I run a land speed bike at Bonneville and El Mirage CA. I purchased the truck because I am tired of dragging a 44' trailer and was hoping to set this up as a race rig.

There is just one problem it has the 7.3 non-turbo motor and is a dog it will not rev there is no tack but all i can get is 40 mph in 4th gear and 57mph in 5th gear does anybody know if these were governed or how to get some more RPM out of if for a a little more power.

1996 F-250 XTRA CAB 4X4 PSD ZF 5 SPEED
327,000 ON THE OD (STILL RUNNING STRONG)

1992 CC LONG BED 4X4 BLOWN UP 460
(SOON TO BE POWERED BY A 12 VALVE)

WORLDS FASTEST HARLEY DAVIDSON V-ROD
(207.715 mph)
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post #2 of 3 Old 05-20-2010, 08:45 AM
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International trucks were governed at 2800rpms. If you put a pump off of a f series truck they would turn between 3300 and 3800 rpms, sounds like the tranny is a non overdrive unit.

-Justin-
1985 Ford F-250 with a 6.9 IDI/T-19 4speed 4x4
Paint, Eagle Alloys, Kelly Safari TSR's, ATS turbo, gauges

2004 Jetta TDI 5 speed
2004 2wd Excursion Limited 6.0. Testing how loyal I am to Ford
1997 Passat B4V TDI. 1 of 80 imported in 97. 50 MPG and a factory 25 gallon fuel tank!
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post #3 of 3 Old 05-20-2010, 12:37 PM
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Have you verified with a GPS to ensure that the speedometer is accurate?

What rear end ratio does it have? That plays into it. Also, non turbo IDI's aren't powerhouses but they will get it there.....just not fast....

Thad


2003 F350 6.0 4x4 Crewcab Longbed SRW w/X Code Front Springs- 265/75R16's on it now. Still got the 285 retreads in the shed though.
Future modifications: Edge Insight CS, SCT X3 with Custom Tunes

-SOLD-
1994 F350 7.3 Banks Turbo IDI 4x4 Crewcab Longbed-Miss you old girl
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