One day I am going to put a 3.0L Isuzu and 5speed out of a Rodeo in a 40 should have more go then a 12ht and better fuel economy
12HT improvements
- Thread starter Rocher
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I'm curious as to the exact model of Isuzu engine and 5 spd that you refer to, and years of manufacture.
My 12HT in my 60 is phenomenal, and I have a 13BT sitting on the floor for my 40. Is this Isuzu engine really that much better? Why?
I will try and get a model of engine they put out 140KW and heaps of torque un modified even better with a tune and exhaust
4jj1 motor and 5speed manual from a rodeo and DMax
4jj1 motor and 5speed manual from a rodeo and DMax
With a BEW TDI from an 04-05 Jetta/Bug/Golf, you can have 365 ft lbs with easy mods, and also amazing MPGs.
Sent from my SCH-I535
Sent from my SCH-I535
- Thread starter
- #46
New 2ltr biturbo jetta is 500nm out of the box.
After estimating the loaded weight I think I'd rather the 12ht for the larger area under the curve torque. If it wasn't going to be a tourer and just a daily with a few weekends away the tdi would probs be great for it
After estimating the loaded weight I think I'd rather the 12ht for the larger area under the curve torque. If it wasn't going to be a tourer and just a daily with a few weekends away the tdi would probs be great for it
I put a 12ht Engine on my 97 80series for over a year now and I'm glad I did is the best mod for my truck , the 12ht is a phenomenal Engine I drove it for almost 15km now without any issue ,some people followed me at the stop light and telling me Dude your truck shooting is flames LOL.
- Thread starter
- #48
hmm after seeing this on the tdiclub forum gets me thinking the tdi may go alright in a lightened 40 series cruiser...
(Collection of Dyno Charts and Videos - TDIClub Forums)
FYI peak torque of the 12ht is 230ft.lbs (at the flywheel) and it seems to move my 60 series along ok
Even if it needed a little more bottom end torque a supercharger could be fitted and still retain better fuel economy then a 12ht.
At a guess my planned 40 with a tdi would come in at 1700kg (shortened 3rd gen 4runner or prado frame and driveline, lengthened fiberglass 40 series tub, etc). Although aiming for a weight of between 1500-1800kg (as it'll have to regularly tow my 1050kg race car + 400kg trailer), fully loaded for touring hopefully under 2,000kg
seeing as the Tiguan is 1650kg (according to redbook) a 2000kg loaded cruiser should be fine with the 2.0 tdi.
seems like a lot of the 4 runner guys get around 30mpg with the 1.9 tdi and the 2.0 gets slightly better fuel economy (0.1l/100km in the same model golf, along with more power).
my biggest concern would be with fuel quality tho, no idea what the 2.0 would be like on lower grade fuels i may encounter during my travels... guess i could always carry some cetane booster...
(Collection of Dyno Charts and Videos - TDIClub Forums)
FYI peak torque of the 12ht is 230ft.lbs (at the flywheel) and it seems to move my 60 series along ok
Even if it needed a little more bottom end torque a supercharger could be fitted and still retain better fuel economy then a 12ht.
At a guess my planned 40 with a tdi would come in at 1700kg (shortened 3rd gen 4runner or prado frame and driveline, lengthened fiberglass 40 series tub, etc). Although aiming for a weight of between 1500-1800kg (as it'll have to regularly tow my 1050kg race car + 400kg trailer), fully loaded for touring hopefully under 2,000kg
seeing as the Tiguan is 1650kg (according to redbook) a 2000kg loaded cruiser should be fine with the 2.0 tdi.
seems like a lot of the 4 runner guys get around 30mpg with the 1.9 tdi and the 2.0 gets slightly better fuel economy (0.1l/100km in the same model golf, along with more power).
my biggest concern would be with fuel quality tho, no idea what the 2.0 would be like on lower grade fuels i may encounter during my travels... guess i could always carry some cetane booster...
- Thread starter
- #49
didn't realise but they are used in the Amarok as well (2050kg 4x4), may have to see if i can take one for a test drive...
- Thread starter
- #50
Im hoping with a bit of luck you may even be able to use a A750F behind the 2.0TDI as you will hopefully have all of the input parameters (AFM, etc)...
unless someone can think of a simpler 5 speed auto with decent gearing and a TC.
I'm finding this a bit hard to believe.
- Thread starter
- #52
So did I, thought it would have the v6 tdi out of the Audi q series or touareg.
Amarok is 2lt bi turbo
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And they're gutless - We've got the TD Amarok at work, and my 3.2 manual BT50 canes it above 60...
Come on guys these small litre diesel engines are working hard to get these numbers so it's in the throw away class once it's spent. Do you think Isuzu or VW will be stocking parts in 30 years to suit these engines.
Toyota stand behind there old stuff and thankfully so does the aftermarket suppliers.
Toyota stand behind there old stuff and thankfully so does the aftermarket suppliers.
My brother in law put a 2.0 electronic tdi engine in his 95 xcab toy pickup and his buddy has one in his 85 4Runner regeared and they move like that dyno graph. Its with a specific stock injection pump though. It's actually sort of unbelievable to be honest when driving in it, but they are stressing those engines out quite a bit to do it. Way faster than the 3.4l v6 gasser through the whole rev range. Broken turbo shafts and bent rods aren't uncommon so some guys cobble rods from earlier engines which are stronger. Head gaskets are also an issue. For a dedicated commuter id do it, but I need to tow a 5k pound trailer and I doubt they'd handle peak torque like that all day for a few weeks. Still though 7L/100km is amazing. That was the average economy from Vancouver to Edmonton and back last winter at 120km/hr in the runner. That's 2300km of mountains.
Gday @watrob, a while back you mentioned about your throttle dampener to help prevent stalling when coming off the throttle. I have the same issue with my 12ht, so I found a dampener at the wreckers, and mucked around, making an additional throttle bracket that sticks out past the original, and a mount for the dampener. It does what I hoped it would in slowing the movement of the throttle lever down before idle, but it hasn't fixed the issue with the engine trying to stall!!! Here is a pic - should I have connected it somewhere else instead??
Thanks! Drew
Thanks! Drew
I forgot to add - this is my prototype bracket - it is now a nice stainless steel one....
The 12ht engine if it has air-con should be idling at around 800 to 900 revs, otherwise about 750. The damper needs to be screwed in pushing the throttle to increase the revs, sounds like the revs are dropping below 600 or 500 which will cause a 12ht to stall.
I use my damper to set the revs at idle, the damper stops the throttle bounce by slowly dropping the revs so you don't get that bunny hop when idling at low speed over rough ground and you foot is bouncing on the throttle in first or low gear.
I use my damper to set the revs at idle, the damper stops the throttle bounce by slowly dropping the revs so you don't get that bunny hop when idling at low speed over rough ground and you foot is bouncing on the throttle in first or low gear.
Thanks for that. My 12HT is set to idle at 800 as it has a problem when you come off the throttle the revs drop too fast, going past the 800 - down to 4 or 500 causing it to occasionally stall before it gets a chance to come back up . I used the dampener to slow down the rev drop, but apparently the movement is on the inside of the inj pump....