GU Patol

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!

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

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...
Donald

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

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
BUT
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.
Indexing:
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...
Donald

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 http://www.turboglide.com.au/turbochargers/rapid.htm
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...
Donald

Hi
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