Ih8mud diesel drag challenge (1 Viewer)

Mr Cimarron

DRIVE, BREAK, FIX, REPEAT
SILVER Star
Joined
Nov 8, 2011
Messages
5,404
Location
Cedar Valley, Texas
I unleashed the beast this morning going to work! Morning commuters were just passing me like normal.
1977 BJ40 - front and rear doors removed
B Engine - using Stanadyne fuel treatment. I do feel the difference when using fuel treatments. Not any faster but seems to run better.
4.11 gears
255/85 KM2s - 33's


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Mr Cimarron

DRIVE, BREAK, FIX, REPEAT
SILVER Star
Joined
Nov 8, 2011
Messages
5,404
Location
Cedar Valley, Texas
Pulled the 80 out of garage after shock install and went for a drive.

80 series BTJ80
Cummins 6BT p-pump with #10 fuel plate.
NV4500 trans
315/75 BFG KO2
4:10 axles with .9/1 high gear in transfer case.

It’s pretty dismal due to the NV4500 drives like a dump truck. I love it but you can’t get out of the first three gears fast enough to get moving. Once in 4th and 5th it pulls like a train. I didn’t push it due to it wasn’t warmed up yet but maybe a second better if I pushed it hard. Let boost reach 25 psi in 4th. Auto would probably be better for acceleration as you won’t loose boost when shifting.
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LandCruiserPhil

Peter Pan Syndrome
Supporting Vendor
Joined
Mar 10, 2004
Messages
24,964
Location
Scottsdale Arizona
Pulled the 80 out of garage after shock install and went for a drive.

80 series BTJ80
Cummins 6BT p-pump with #10 fuel plate.
NV4500 trans
315/75 BFG KO2
4:10 axles with .9/1 high gear in transfer case.

It’s pretty dismal due to the NV4500 drives like a dump truck. I love it but you can’t get out of the first three gears fast enough to get moving. Once in 4th and 5th it pulls like a train. I didn’t push it due to it wasn’t warmed up yet but maybe a second better if I pushed it hard. Let boost reach 25 psi in 4th. Auto would probably be better for acceleration as you won’t loose boost when shifting.
View attachment 1696222 View attachment 1696223

What gear did you use for the test below

 

IanB

SILVER Star
Joined
Jan 23, 2010
Messages
4,398
Location
Winnipeg, MB
Pulled the 80 out of garage after shock install and went for a drive.

80 series BTJ80
Cummins 6BT p-pump with #10 fuel plate.
NV4500 trans
315/75 BFG KO2
4:10 axles with .9/1 high gear in transfer case.

It’s pretty dismal due to the NV4500 drives like a dump truck. I love it but you can’t get out of the first three gears fast enough to get moving. Once in 4th and 5th it pulls like a train. I didn’t push it due to it wasn’t warmed up yet but maybe a second better if I pushed it hard. Let boost reach 25 psi in 4th. Auto would probably be better for acceleration as you won’t loose boost when shifting.

Would it be any better if you started in 2nd, or skipped a gear?
 
Joined
Mar 3, 2018
Messages
130
Location
Northland nz
Couple of runs 88 Hj60 378000kms stock except 32in tires 26 sec 1/4 prob 200kilos of gear. Definitely not a race car. Anything more than 3/4 throttle makes no difference.
 
Joined
Jul 9, 2012
Messages
2,475
Location
South KC
Turbophils 96 lx450 6bt VE pump non-intercooler 3.55 gears 305/75r16 a/t tires arb front bumper slee rear bumper winch and rock sliders and the 6bt with a343f using a car performance app ran a 11.5 sec 0-60.
HX35W ported waistegate set to 32psi

Didn’t do 1/4 but it will run 90mph happy down the highway with those gears.

My 4bt has been 14-17sec 0-60. 315/75r16 a/t tires intercooler 3.55 a343f depending on tune. 30-40 psi on an Hx30 46mm inducer
 
Joined
Jan 30, 2010
Messages
2,412
Location
SK Canada
i want to try this out. anyone using a good apple app that’s free here? nice to use the same apps as others for best comparison i’d imagine the perfexpert costs like $13 which is a lot for an app ill use a couple times (maybe i’m just cheap but i’ve given apple more money than they deserve already!!).
 

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