GU Patol

Submitted: Friday, Aug 08, 2003 at 21:55
ThreadID: 6449 Views:2005 Replies:7 FollowUps:8
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i smile when i read all the problems with the 3lt patrol,I own a 2.8,yes i have "upgraded" it so it now puts out as much as the 3lt, but it is a 6 cyl diesel, it sounds like a diesel, its even lighter has a greater carrying capacity, tighter turning circle than the over stressed 4cyl 3.0lt .Ok the 3.0lt can tow more Kg and the 2.8 has a light duty clutch so were even on that .IF you read any 4wd mag they still have trouble admitting the 2.8lt (as in the GQ) is a more competent 4wd than the over hyped 3.0lt.
and they're cheaper.
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Reply By: Truckster (Vic) - Friday, Aug 08, 2003 at 22:20

Friday, Aug 08, 2003 at 22:20
Theres an article on buyin a 2.8 and 4.2 GU's in one of the latest mags...

Amazing how people have to justify their purchases...

Most people then come up with how can I get more power, etc.. then spend thousands on what they ahve to get what a 4.2 puts out standard!

2,8's are cheap! good for throwin Turbo 6.5 Chev V8s in!

Enjoy it!
AnswerID: 27202

Follow Up By: Member - Bonz (Vic) - Saturday, Aug 09, 2003 at 07:49

Saturday, Aug 09, 2003 at 07:49
Well said T-man, I love my GU3.0, powered it up so it has the same output as a Landcruiser TD, its cheaper and looks a whole lot better, has a smaller turning circle and no IFS..............

Horses for coursesSo many places to go!
So much work to do :0(
FollowupID: 18707

Follow Up By: Truckster (Vic) - Saturday, Aug 09, 2003 at 13:04

Saturday, Aug 09, 2003 at 13:04
From another forum

nissan replaced one (3.0 GU)last week with 140,000kms on it out of warrenty
they know they have problem they are giving everyone the same as me in may..

a new long motor and reuse your turbo, waterpumps, altenator etc etc.

basically you get a new block, crank pistons, and complete head assy.
mine did 81000kms too before blowing up
John Roly


FollowupID: 18723

Reply By: Allyn (Pilbara) - Friday, Aug 08, 2003 at 22:54

Friday, Aug 08, 2003 at 22:54
everyone one I know with a 2.8 has failed to call it competent at all , let alone more competent than the 3.0.
Next Trek - Callawa Rd
AnswerID: 27209

Follow Up By: Luke - Saturday, Aug 09, 2003 at 21:05

Saturday, Aug 09, 2003 at 21:05
I had a GU 2.8TDI - and whilst it was certainly a bit underpowered on the highway side - IMHO it was quite competent in other respects :-)

Outdid other "more competent" vehicles on many occasions :-)

FollowupID: 18761

Follow Up By: Allyn (Pilbara) - Sunday, Aug 10, 2003 at 12:10

Sunday, Aug 10, 2003 at 12:10
jest fishin' Luke !
To each his own and i's never seriously knock anyone for their choice of car
cheersNext Trek - Callawa Rd
FollowupID: 18812

Follow Up By: Luke - Monday, Aug 11, 2003 at 11:31

Monday, Aug 11, 2003 at 11:31
sweet :-)
FollowupID: 18876

Reply By: Member - Donald L- Friday, Aug 08, 2003 at 23:21

Friday, Aug 08, 2003 at 23:21
I love my 2.8 GU
upped the power by 33% plus the same for torque with a Rapid device, service it myself as I am formally trained & very experienced. Tow a 22.5 ft caravan.
get 9.8 to 10.5 LTR per 100km running around penrith (no hills) clutch excellent
6 horses have more heart than 4 big ones, cheersGet out there and use it.
Life is too short not to.
All the best...
AnswerID: 27213

Follow Up By: Hugh - Saturday, Aug 09, 2003 at 00:43

Saturday, Aug 09, 2003 at 00:43
Hi Donald,

I have a 2.8 also and find it to be a great touring vehicle. Must admit that when I started searching I dismissed it because of engine size, thinking it was 4-cyl. However when I found it was a 6-cyl I had a look at some. Sure not huge on power but very smooth and I figured being a 6-cyl is likely going to last a long time with regular servicing.

Currently the engine is std, though I have considered power upgrade via RAPID plug-in module to help out with towing a camper trailer we've recently acquired. Copes OK actually so just considering. I am very interested in your quoted fuel consumption. I am getting ~ 12.5 L/100km so would like to know if your improved figures came after power upgrade. What changes have you noticed in driveability? Does fitment of the RAPID module require any adjustment of boost, or simply a plu-in unit as claimed?

FollowupID: 18699

Reply By: Michael - Saturday, Aug 09, 2003 at 09:13

Saturday, Aug 09, 2003 at 09:13
i'm onto my second 4,2 gu, i'm happy with mine, it give me 'peace of mind'. but to each his own. Michael
AnswerID: 27242

Reply By: Member - Donald L- Saturday, Aug 09, 2003 at 14:34

Saturday, Aug 09, 2003 at 14:34
A few more points
Comparing 2 TD in-line engines that are very close to same capacity in cc's but one is 4 cyl & 1 is 6 cyl
*Both can be close in performance with a bit of tweaking but cost bucks$$.
*Both run about the same RPM
*Both are 4 stoke Engines
4 cylinder engines for the same capacity/performance are subject to:
** Increased Stress & load on components. Given there a less moving parts there are less to share the same load.
remember increased stresses when Extended towing
**Run rougher when worn.
for In-Line 4 cylinder crankshaft are set at 180 Deg (2 pulse per revolution)
for in-line 6 cylinder crankshaft are set at 120 Deg (3 pulse per revolution)
** The dynamic difference in load distribution along the crankshaft will always make a 6 cylinder a smoother unit.
(that is why Jaguar made V12's)...ultimate is a radial engine.

Balancing of a new engine is via design and is achieved these days with excellent technology .
This may be text book but time & experience will give the final answer.

It would be interesting to note what professional truck drivers and fleet owners think of giant 4 cylinder engines in their rigs.
-Rapid Unit-
My Fuel calcs were from full tank to full tank & measuring the KMs travelled.
I am only doing about 150 KM a month with domestic use. 75% of my use is in 5th gear the rest up & down and on flat roads. I have started another test last week so I'll give you a buzz with the outcome.
The Rapid Unit actually is a module that interacts with the fuel pump control and increases the injection rate relative to pedal demand, there is a direct increase in exhaust gas temperature offering a kenetic energy boost to the turbine expander picking up revs which immediately boosts air pressure hence available added power on demand.
The maximum permissible operating temperature allowed (including a safety margin) for the valves & valve seats in the 2.8TD is the performance limitations/set point for the Turbo Charger via the Rapid unit whilst in 4th gear on Dyno under load. This is where the % gain is limited.
If you drive conservatively the new efficiency can to be to advantage in fuel savings, but if you give it a bit of stick, she jumps up & roars and you get performance & use fuel you may not want to.
There is a switch to put it of & on and it is much more pleasant to drive with on.
When towing the van on highways only a few have need to pass me, steep mountains are always different .
Off-road more than ample torque for all situations and towing.
Get out there and use it.
Life is too short not to.
All the best...
AnswerID: 27261

Follow Up By: Patrol22 (Queanbeyan - Saturday, Aug 09, 2003 at 14:56

Saturday, Aug 09, 2003 at 14:56
Hi donald
I too have a GU2.8tdi and am very happy with it to date. OK it can be a bit of a slug off the mark but I haven't not been able to go where the rest of my 4WD club (Discos, Defenders, Cruisers, Prados, Patrols - with all sort of engine combinations) go. I am however interested in improving performance and fuel consumption and would like a bit more info on the Rapid - can you point me in the direction of who distributes/fits these things?
FollowupID: 18737

Follow Up By: ramp - Saturday, Aug 09, 2003 at 17:08

Saturday, Aug 09, 2003 at 17:08
sorry for butting in on you donald but im at work and a bit bored so ill answer patrol22 question.turbo glide at wollongong (russel vale) do them the phone is 02 week i hope to have one installed,but rather than on or off im going to get a off,10%,30% increase therefore 10%for normal driving and 30% for towing the camper trailer or as extra grunt is needed price is about $1200. cheers
FollowupID: 18744

Reply By: Member - Donald L- Saturday, Aug 09, 2003 at 17:04

Saturday, Aug 09, 2003 at 17:04
to answer Pete's question:
As per Followup ID 16372 also

With regards to the Rapid Module: It is a European device installed by "TURBO-GLIDE" of 609 Princess Hwy Russell Vale (Wollongong) ring 02 42847881 see website
There is a lot of info there & testimonials etc. They gave me a print-out of the DYNO tests & calibration of the temperature limits and on paper shows just above 30%. The GU is out of manufacturer's warranty so the modification was my choice. We picked up a "Show Special" from the caravan & camping show last year & it cost us $1200 plus GST. I don't know what it cost now.Get out there and use it.
Life is too short not to.
All the best...
AnswerID: 27272

Reply By: Member - Bigbear - Sunday, Aug 10, 2003 at 10:01

Sunday, Aug 10, 2003 at 10:01
I have a 2.8 GQ great car. Most of the time where a vehicle will go depends about 25 parts on the machine and 75 parts on the driver.
In our club I find I can usaully pull the 4.2 LC etc out once they get bogged LOL:)

Everybody has differnt tastes and different reqirements from there vehicles so I dont knock anyone despite what they drive,even if it is a Lada :)

Lets help each other with ideas rather than say my cars better than yours.Bush Bappo's 4WD Club
Get out there & have a look
AnswerID: 27325

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