GU with Cummins donk

Submitted: Monday, Feb 11, 2008 at 10:27
ThreadID: 54456 Views:10023 Replies:7 FollowUps:3
This Thread has been Archived
Hi all,

Recently I have been thinking about the option of fitting a Cummins 5.9 or the 6.7 L TD 6 cylinder in my GU ute. Reason I am considering this is because I can get one of these engines with less than 10 k on the clock for 10 grand (incl. gearbox and transfer) through a mate who is an importer and also fuel economy would be excellent.
I am told that I would need to replace diffs because of the torque of these motors.
Does anyone know whether it is possible to fit one in a GU and what the weight difference would be compared with the TD42 and whether it has been done before?

Thanks.
Back Expand Un-Read 0 Moderator

Reply By: Member - Doug T (FNQ) - Monday, Feb 11, 2008 at 10:39

Monday, Feb 11, 2008 at 10:39
Bloke was here where I live and he had a Dodge Ram with Cummins , I think you'll be more than happy with it, he said it has loads of power with good economy.


.
still going strong with 836,179 K's

Lifetime Member
My Profile  My Blog  Send Message

AnswerID: 286851

Reply By: traveller2 - Monday, Feb 11, 2008 at 10:45

Monday, Feb 11, 2008 at 10:45
Don't know anyone that has fitted them in a GU but there have been a few fitted to Hummer H1's and Humvees in the US.
They too fit the entire drivetrain from fan to rear of the transfer case, because of the massive torque the engine outs out (it is more than a 6.2 or 6.5T Chev) theydo have a problem with diffs and halfshafts if the loud pedal is used indiscriminately.
They usually get a complete donor vehicle (Dodge utes usually) as you need all the electronics for engine and trans as well as the intercooler, ABS sensors, dash and instruments plus interior driver controls, (accelerator, trans selector overdive selector etc as everything is fly by wire/electronic).
Are you getting all the electronics/wiring harness/controls/instruments etc?
If you want I can find the link to an article one of them wrote re the conversion.
AnswerID: 286853

Reply By: TerraFirma - Monday, Feb 11, 2008 at 11:45

Monday, Feb 11, 2008 at 11:45
I have 2 x Cummins 6BT 210HP 5.9's in my boat and they are a very strong motor with near 800nm of torque each. They are slow revving engines that max out at around 2600rpm however you never take them pass 2400rpm. Big and heavy donks..!
AnswerID: 286857

Reply By: Trevor R (QLD) - Monday, Feb 11, 2008 at 15:45

Monday, Feb 11, 2008 at 15:45
If it's a goer and you get it done, post some info on the result and problems encountered please.

Good luck with it.
Trevor.
AnswerID: 286890

Reply By: Truckster (Vic) - Monday, Feb 11, 2008 at 16:20

Monday, Feb 11, 2008 at 16:20
It has been tried before - they are too long.

But like your thinking.
AnswerID: 286899

Follow Up By: brett patrol - Monday, Feb 11, 2008 at 18:52

Monday, Feb 11, 2008 at 18:52
Truckster,

i believe you have to move the radiator forward and slightly alter the firewall.
The other option is to fir the 6.4 L V8 powerstroke engine. This engine is shorter and really not much wider as the turbo and manifold is located on the top of the engine.
Food for thought
Thanks for your feedback guys.
Will keep you posted on any results.

Brett
0
FollowupID: 552140

Reply By: Member - MUZBRY (VIC) - Tuesday, Feb 12, 2008 at 07:34

Tuesday, Feb 12, 2008 at 07:34
Gday
You could always try a "4BT" 3.9 ltr, they have 160 hp and heapes of torque. The weight will be less .
Murray
Muzbry
Great place to be Mt Blue Rag 27/12/2012

Lifetime Member
My Profile  Send Message

AnswerID: 287005

Follow Up By: Trevor R (QLD) - Tuesday, Feb 12, 2008 at 09:20

Tuesday, Feb 12, 2008 at 09:20
Not trying to be smart Muz, but why? when it is realatively simple job to get 160+ rear wheel HP out of the current 4.2 GU mill.

Most of the figures engine makers fly around are flywheel figures and heaps is lost through the drivetrain. Fpr example the 4.2T Gu of mine has 114kw as advertised by Nissan, put it on the dyno nd it is running 66kw at the back wheels. Work it over and am now running 126kw or 168HP at the back wheels for a heap less cash than an engine swap.

Just my thoughts.
Regards, Trevor.
0
FollowupID: 552251

Follow Up By: Member - MUZBRY (VIC) - Tuesday, Feb 12, 2008 at 12:06

Tuesday, Feb 12, 2008 at 12:06
Gday Trev
No problems . The gent was interested in Cummins, so i put my bit in. Knowing full well that the hp of a 4.2 was the similar.

Ps......How is the weather up your way,,? you must be sick of the rain by now. I lived in Fiji for a number of years and we saw the sun only half the year. We used to take the kids around to the West sideof the island so that they would dry out.
Murray
Muzbry
Great place to be Mt Blue Rag 27/12/2012

Lifetime Member
My Profile  Send Message

0
FollowupID: 552263

Reply By: BMKal - Wednesday, Feb 13, 2008 at 03:49

Wednesday, Feb 13, 2008 at 03:49
There's one kicking around Kalgoorlie with this conversion. Don't know the owner myself, but I'm told it's pretty impressive.

If you want to get some info, look up Bantick Brothers in Kalgoorlie and give them a call. They are the local ORE / ARB agents and they know the vehicle well (that's where I saw it).
AnswerID: 287189

Sponsored Links

Popular Products (14)