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GU 2.8td vs 4.2td towrig and DD
Posted: Tue Oct 21, 2008 6:37 pm
by DIRTY ROCK STAR
guys,
abit off topic but..
whats the stock figures of a 2.8TD VS a 4.2TD in GU's.
yeah i did search too
looking at getting a GU to tow my comp rig. so wondering what the stock performance figures are vs economy.
and if the smaller 2.8 is up for towing 2500kg?
cheers
Posted: Tue Oct 21, 2008 8:04 pm
by coxy321
Serious?????
IMHO, depending on how long you want to keep the car, i'd go for the TD42 for longevity. I dont think there's any "issues" with the 2.8 like there was with the ZD30, but the TD42's are great for towing even in N/A form.
Posted: Tue Oct 21, 2008 8:07 pm
by rogantriton
i love my 2.8 its great to dive good on fuel and goes places, but if you are after a tow vehicle dont even bother about the 2.8, go the 4.2 definately, the 2.8s just dont have much power to tow anything especially not a comp truck and car trailer. they would do it but not hapily.
Posted: Tue Oct 21, 2008 8:13 pm
by coxy321
rogantriton wrote:i love my 2.8 its great to dive good on fuel and goes places, but if you are after a tow vehicle dont even bother about the 2.8, go the 4.2 definately, the 2.8s just dont have much power to tow anything especially not a comp truck and car trailer. they would do it but not hapily.
99% sure the 2.8's had a "lesser" drivetrain too....
Posted: Tue Oct 21, 2008 8:30 pm
by rogantriton
the 2.8s got the same as the 4.2 as far as i know. just different diff gearing.
Posted: Tue Oct 21, 2008 8:33 pm
by coxy321
Might be the GQ RD28's i'm thinking of.
Posted: Tue Oct 21, 2008 8:50 pm
by nastytroll
GU rd28 still had the small gearbox, the ZD30 has the big TD/TB gearbox.
Posted: Tue Oct 21, 2008 9:00 pm
by rogantriton
yeh thats right, 2.8 / 4.2 got same transfer and clutch/flywheel setup
Posted: Tue Oct 21, 2008 10:01 pm
by Troll00
I have the 4.2tdi and it works hard on big trips towing the buggy let alone a full body rig, if you go the 2.8 get a big overdraft and thats just to get to perform as good as the 4.2 let alone repair it after is sh*ts it's self. The petrol 4.2 are not so bad if run them on gas.
Chers
Damo
Posted: Wed Oct 22, 2008 8:59 am
by bogged
2.8's are worth small change now some going for GQ prices, get one with shit load of klms, and do engine swap with a Chev Diesel...
Posted: Wed Oct 22, 2008 9:13 am
by coxy321
bogged wrote:2.8's are worth small change now some going for GQ prices, get one with shit load of klms, and do engine swap with a Chev Diesel...
zoom zoom
Posted: Wed Oct 22, 2008 9:50 am
by DIRTY ROCK STAR
cheers guys.
anyone got a link to the actual Kw and Nm figures for stock 4.2td and 2.8td GU's.
the truck wont have to tow too often but will have to get me to and from work reliably every day.
Posted: Wed Oct 22, 2008 9:56 am
by bogged
DIRTY ROCK STAR wrote:cheers guys.
anyone got a link to the actual Kw and Nm figures for stock 4.2td and 2.8td GU's..
2.8 1kw 2nM (after chip)
4.2 59kw 700nM
Posted: Wed Oct 22, 2008 10:09 am
by coxy321
bogged wrote:DIRTY ROCK STAR wrote:cheers guys.
anyone got a link to the actual Kw and Nm figures for stock 4.2td and 2.8td GU's..
2.8 1kw 2nM (after chip)
Snorkel = add 1.5kw
3" Mandrel bent exhaust = add 2kw
Double Hyclone Electronic Supercharger = add 300kw
Posted: Wed Oct 22, 2008 11:08 am
by bogged
coxy321 wrote:bogged wrote:DIRTY ROCK STAR wrote:cheers guys.
anyone got a link to the actual Kw and Nm figures for stock 4.2td and 2.8td GU's..
2.8 1kw 2nM (after chip)
Snorkel = add 1.5kw
3" Mandrel bent exhaust = add 2kw
Double Hyclone Electronic Supercharger = add 300kw
downhill add another 3kw
tail wind - subtract 3kw..
Posted: Wed Oct 22, 2008 12:38 pm
by DIRTY ROCK STAR
hahahah.
ok fine.... i will stick with owning toyotas!
Posted: Wed Oct 22, 2008 12:44 pm
by coxy321
Posted: Wed Oct 22, 2008 3:55 pm
by bogged
2.8s do have a history of cracking heads.. $2000-2500 to fix.
Posted: Wed Oct 22, 2008 5:08 pm
by ozy1
2.8's also have the smaller gearbox similar to the 300ZX from what i believe, they have a shit duel mass flywheel which make loaded takeoffs on steep hills shit, and duel mass flywheels are about 2k new, thou you can fit a stamdard flywheel and clutch set up.
RD28 has smaller tail shafts, smaller unis, injector pump problems are common as well, with repair values up to 3k,
they are only good for towing 2500kgs where as a td42 is good for 3500kg's,
TD42's are real hard to find in top nick,
Posted: Wed Oct 22, 2008 5:50 pm
by DIRTY ROCK STAR
thanks shaun.
yeah looks like i should be looking for a 4.2TD then.
yeah condition will be interesting....
see how i go.
Posted: Wed Oct 22, 2008 7:10 pm
by ozy1
how much you looking to spend?
Posted: Wed Oct 22, 2008 7:23 pm
by coxy321
Best tip i can offer for a TD42 in good nick....
- Service history
- Service history
- Service history
Easy.
Posted: Wed Oct 22, 2008 9:15 pm
by bogged
DIRTY ROCK STAR wrote:thanks shaun.
yeah looks like i should be looking for a 4.2TD then.
yeah condition will be interesting....
see how i go.
http://www.patrol4x4.com/forum/showthread.php?t=21459
Posted: Thu Oct 23, 2008 9:00 am
by DIRTY ROCK STAR
bogged cheers for the link.
thats the puppy im after. but WA is a hassle with not being able to view the truck or drive it.
and its not that i dont trust people... its just that i dont trust people.
but that thing on the east coast and id be test driving it for sure.
i do need to sell my 80, but meh details details.
shaun looking to spend under 20. prefer 17ish.
but im still yet to find the stock kw & Nm performace from GU4.2td.
i will use my old friend google and see how i go.
Twon
Posted: Thu Oct 23, 2008 11:20 am
by bogged
DIRTY ROCK STAR wrote:bogged cheers for the link.
thats the puppy im after. but WA is a hassle with not being able to view the truck or drive it.
and its not that i dont trust people... its just that i dont trust people.
but that thing on the east coast and id be test driving it for sure.
Andrew who owns it is on this board to.. GQAndrew.
Getsomeone to check it over basically, then cheap airfare to Perth yourself if your happy with photos, and inspection etc.
Take a week off work, fly over drive home..
I think if you bought it and it was a dog (I dont think it is lookin at it), you could still make bux on it easily, $15k is cheap - and hes keen to sell, so $12-13k?. People are dreaming of that price on GQ's still...
Posted: Fri Oct 24, 2008 6:55 am
by DIRTY ROCK STAR
finally found the figures for the 4.2.
91kw for NA and 114KW for TD. the TD having 330nm at 2000rpm.
not quite what i was expecting.
but it may have to do.
time for some test driving.
Posted: Fri Oct 24, 2008 7:13 am
by coxy321
The numbers may not be super high, but i think you'll be surprised. My car is definately not the fastest out of my crew of mates, but it doesn't matter if i'm running around empty, towing the stock trailer, or towing a car trailer - at least its consistently slow.
It sits on 110km/h all the way to work without dramas, doesn't slow up on hills, and is very consistent with fuel usage when driven "properly".
All i can say is thank christ its not as slow as a hilux.
Posted: Fri Oct 24, 2008 9:45 am
by bogged
coxy321 wrote:The numbers may not be super high,.
and not super correct either

Posted: Fri Oct 24, 2008 10:40 am
by coxy321
bogged wrote:coxy321 wrote:The numbers may not be super high,.
and not super correct either

Yes...... I think the N/A has around 45ish rwkw on a good day, so 91fwkw is probably a tad optimistic.....