Outer Limits 4x4 Board

Hi everyone I have a suzuki based truggy that's running a series 2 commodore v6 with the turbo 700 auto and while it has great low down grunt and gearing I would like to go to a lighter motor and gearbox package. I'd like to stick with an auto but want to drop a heap of weight from over the front axle. It is running twin nissan transfers for the reduction but I have a spare zook case with 6.5 gears which can be used with the new engine gearbox combo. What would peoples opinions be on the best combo for reasonable power but at a realistic weight any advice would be greatly appreciated

cheers troopy

how about a vitara v6 with autobox with your zook case behind that?
light and rev to the moon

dr who? wrote:how about a vitara v6 with autobox with your zook case behind that?
light and rev to the moon

mm nice

other wise theirs heap of alloy 4's 6's and 8's out their

I'm thinking an alloy 4 cylinder would be the best for weight and then hopefully i could shift it back further in the engine bay for better weight distribution

Suzuki v6 is a nice engine compact, powerful and light, only problem its a revy engine with most of its power in the mid and high range. Not much low down where you need it for rock crawling. Would have thought a suzuki 1.6litre or 2 litre would be a good choice.

Twin turbo rotary

Why not be the first on the block with an electric powerplant

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~$2100 for batteries (40 AH x 40, for 60kg)
~$2900 for motor (38kg)
~$3600 controller (15kg)
~$1000 battery management (5kg)

Yeah, $10g or so but a system that's different, inherently has bags of torque down low, small and light (120kg all up) and easy to arrange the CoG where you wanted it. Use your Zook case or dual lux cases straight up to the motor for gearing (essentially set and forget though) one at 4.7:1 the other at standard 2.2:1 would give a good spread with 3.7:1-3.9:1 diffs

If you looked at it seriously it would be one hell of a publicity machine and could do the sport a huge favour.

You could up the battery voltage from ~150 to ~180 for an additional 8 cells and 12 kg, or simply go as high as you want right up to 330 volts if you have room and can or want to carry the extra weight for extra endurance.

You may need to factor in a 1-2kW generator on you truck to charge between rounds.

Thankyou everyone for the ideas and the electric option is very interesting but I'm not sure if they will allow an electric powered vehicle in rock crawling events or even in tufftruck as that is my ultimate goal for the zook. I currently run the v6 on straight gas and would do the same with whatever motor goes in so it doesn't have to be an injected engine. I have another zook as a daily driver with a 1.6 but I feel that it isn't enough for the truggy so around 90 to 100 kw would be ideal with the right gearing.

just helped a mate do a 4agze to vitara auto and transfer.

troopy94 wrote:Thankyou everyone for the ideas and the electric option is very interesting but I'm not sure if they will allow an electric powered vehicle in rock crawling events or even in tufftruck as that is my ultimate goal for the zook. I currently run the v6 on straight gas and would do the same with whatever motor goes in so it doesn't have to be an injected engine. I have another zook as a daily driver with a 1.6 but I feel that it isn't enough for the truggy so around 90 to 100 kw would be ideal with the right gearing.

Don't laugh, but have a look at a Sportage driveline.

Auto available, 2 litre, 1.98:1 low if you use stock Tcase. Fairly compact from the fan to the firewall (600mm), assuming you are using a rear mounted radiator, less than that. Strong bottom end (crank originally from a diesel) Whole D/line is within 15mm of the length of a Commo V6/4L60E/Marks adapter/Hilux Tcase.

Full name: Mazda FE3N

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As for the electric option, test the waters with the organisers, you'll never know if you don't ask, and it would help to "green" our sport, which I don't think would be lost on them.

What about a 2.7 hilux motor, auto box if they come with one and transfer case? All stock parts from the hilux and bolt together with no adaptors which makes spares cheaper and easier to get if something goes wrong.

Mark.

What would be the weight difference be between the commo v6 and the 2.7 hilux motor? I have read a bit about the 2.7 or 3rz I think it's called and it seems they are quite a grunty motor for a 4cylinder but my navie wants me to put a 2.6 pajero motor in it with magna injection but I'm worried it would be too much for the zook transfer.

not the 2.6 astron its also found in canter trucks sigmas and forklifts

thought about the volvo v6 (all alloy)
or even the rover v8 comes with a brilliant transfer case
both real cheap options

sr20, all alloy 2.0lt motor either turbo or na.

troopy94 wrote:. I have another zook as a daily driver with a 1.6 but I feel that it isn't enough for the truggy so around 90 to 100 kw would be ideal with the right gearing.

how big of tires you running ?? what terrain? my 1.6 has plenty of go , this years tuff truck winner has a 1.6L, power comes second to suspension design unless of course your a mud bogger

2liter zuk motor or 3rz only thing with the 3rz when I looked into it was a bit pricey to by compared to como motor thats the only reason I went that way.3rz should be heaps lighter just over 100kw and is built for a 4x4 so no crank angle sensor out the front were they get full of crap and break.

I'm running 38 in tsl swampers at the moment with a tyre change to 40 stickies soon, the diffs are 60 series front diffs with rear steer and dirty 30s all round. It is pretty heavy with quite alot of barwork so would guess it to be around the 1700 plus kg mark and I'm thinking the 3rz sounds like a great motor for it since it was built to push around a 4x4 of a similar weight

troopy94 wrote:I'm running 38 in tsl swampers at the moment with a tyre change to 40 stickies soon, the diffs are 60 series front diffs with rear steer and dirty 30s all round. It is pretty heavy with quite alot of barwork so would guess it to be around the 1700 plus kg mark and I'm thinking the 3rz sounds like a great motor for it since it was built to push around a 4x4 of a similar weight

What are your optiopns of putting the whole truck on a diet ?
replace some tube with smaller diameter or thinner wall section (non critical of couse) Alloy links , alloy rims etc etc

Another vote for the 3RZ from me.

Suzuki jimny 13bb or m15a with a holden 3 speed auto behind it and sierra transfer. This is what i will be using once again when i build my buggy.

cheers mark.

3rz aint much lighter than a v6, still a cast iron block and a big 4cyl one at that.

Not 100% but was pretty sure late model 3rz is all alloy or go a injected 1.6 with a little hair dryer strapped on it

i'd be interested also in the weight difference of a 3rz to v6 holden . as this is the way i almost went until i picked up a v6 and auto with complete car for $50 .

na 3rz's are cast iron, dont get me wrong there a great motor its just he stated light weight and u can get lighter than a cast iron 2.7lt 4cyl

johnsy86 wrote:3rz aint much lighter than a v6, still a cast iron block and a big 4cyl one at that.

It's also similar power to the V6 commo motor and easier to fit in a small engine bay.

why not for light weight and power, sr20 turbo, powerglide to lux transfer?

Glides have quite a high first gear

love_mud wrote:

troopy94 wrote:I'm running 38 in tsl swampers at the moment with a tyre change to 40 stickies soon, the diffs are 60 series front diffs with rear steer and dirty 30s all round. It is pretty heavy with quite alot of barwork so would guess it to be around the 1700 plus kg mark and I'm thinking the 3rz sounds like a great motor for it since it was built to push around a 4x4 of a similar weight

What are your optiopns of putting the whole truck on a diet ?
replace some tube with smaller diameter or thinner wall section (non critical of couse) Alloy links , alloy rims etc etc

i think this would be a good idea also, and if not powerglide maybe a 6l80e or turbo700 or c4 theres a few to choose from, just some ideas.

Nice to fit a motor that was designed for a 4x4 not a car as I love my como v6 had 2 of them but the crank angle sensor sucks right at the front were they break easy when you drop them in some mud thats course full of tiny little rocks.

Im running a r151 manual what other manuals are out there to suit some of these motors could you use the box from a sr20 is it strong enough and what is first gear like ratio wise.

got no idea on other manuals for this motor Duncan. Id run an auto, the whole idea of running this motor would be cause its light weight. whichs is what he asked for a light weight motor, i wouldnt run this motor in anything other than a zook or buggy because of its small capacity only 2lts.