Outer Limits 4x4 Board

Hey guys, just wondering how the Simex extereme trekker centepede 35x10.5x15 will run on my 410k 2H 60 series? Currently I have 33 BFG Mud Terrains, she seems a bit sluggish on the road (falling back to 70kph on decent hills on the highway) , but I havent run out of power offroad, im just concern that the 35's will effect the performance to a degree where I might run out of power up steep offroad hills, if this is the case, I would prefer to get the smaller 32 pedes for now, rather then rebuild the engine which I cant afford. I think the 32 pedes have a larger total diameter then the 33 BGF Muddies anyway? Am I correct there?

Some comments from 60 owners running 35's would be cool.

Cheers

Azz

Its definately not going to be 'QIKAZZ' running 35 pedes... your options are:

Diff gears - $1k changeover and installed.
Turbo - $3k for DIY/homemade, $5k for professional.
Given that its on 410k, turbo is probably not the best option so id go diff gears or transfer gears from marks.

Diff gears are outa the question as its got airlockers in it, I dont really wanna have to change to crawler speed gears, maybe I should just stick with the 32's, its still got me beat why they dont make 33's

Anyone else runnin 35's on thier 60 series with 2H engine?

It would be cool to borrow someones 35's for one of my small few hour sunday drives just to see how it goes before forking out for a full set of new ones. Anyone in Dandy area willing to help there haha.

Cheers

Azz

Just cause it has airlockers doesnt mean u can change the diff gears... if someone has told u that, find another mechanic!!!

Marks gears wont affect your on road performance, i think 8% change which should make it better on road to counteract the larger tyres, they only increase your low range, which in your case will be better for the same reason.

Id still go diff gears... www.ttdrivelines.com.au

i know it can be still done with airlockers, but I thought it would be more expensive, also I dont like playing with diffs, so I will have to pay someone to do them for me. haha

put a 350 chev in it

i wish i could just put a motor like that in it, my main question was will the tired 2H run 35's ok, (without any other modifications to the vehicle)

If your motors tired i would think 35`s will kill it on you. If you havnt the money to spare just go the 32`s IMO

I'd say it'd bring about an earlier demise for the ol 2H and be a real slug on the freeway. Steep hills wouldn't be fun at all. Offroad I don't see a problem for you - speeds are lower and most time is spent in lower gears.

I have a turbo'd 2H and find I use an extra 20kPa of boost to maintain 110 on the 35" ETs (as opposed to 31's). More boost, more heat, more fuel.....

You'll need 2" spring lift to get em under the guards & mine still rub on the rear at full tuck. Lose a bit of steering lock too - they just rub on the front springs at full lock.

Did I mention they're great offroad?

im not fussed about the sus lift, I already have 3" and if I decide to get the 35's I will get another 2" body lift, the lift part is easy and cheap, its the power I am worried about, I guess the highway stuff does not really bother me, im more concern about the offroad abilities.

The 32" ET's measure 33.6 IIRC, and i understand the BFG's measure under 33", so i think you'd be happy with the increase in size.

-Stu

The voice of experience speaks...
I have a hj60 4 spd 2h. In all my wisdom i through a set of Q78 swamper sneakers under the old girl. They measure somewhere between 35 and 36. Shit hot tyre. Slow going. Very slow going. First low is the only gear i could use lots of hills. I now have a supercharger, only 5 psi, and 4.88 ratios. It has help but they are still are bitch to get turning. The benefit the extra traction gives you is great so i'd recommend it but be prepared for some slow journey's. I never actually ran out of steam as such, i mean first low was always low enough to keep wheels turning but there is definitely times (lots of times ) when i want more power still.
On road don't expect to break any records, if you thought it was slow before you aint seen nothing yet, get used to changing gears on hills. Leave home 15 minutes earlier!!!!!
Hope this helps. Wanna know any more pm me.
Cheers

Hey Azz. I have non turbo'd 2h and 35z. It's a bit slow! Actually I haven't minded driving around town too much and on the open road (flat) it's ok, although I don't use 5th. On the weekend I took a lightly loaded trailer to the tip - what an effort! The bottmo line is that I'm looking for a 2nd hand turbo! Diff gears sound good too, but I think I would go the turbo first.

I think I might be better off sticking to the 32's for now, I really cant afford any other performance upgrades just yet, and I will still want to tow the motor bike to the state forest once a month as well.

Cheers Guys

Azz

mate, with a standard 2H 35's will slow you right down big time on the hills, but a bigger problem is off road where you loose your 1st low crawling ability because of the higher gearing. Downhill becomes too fast in the rough stuff, and you will be using your clutch a lot, having to go down under brakes, then you'll want the transfer gearing or diff ratios changed, then you'll want the...................goes on and on.


stick with the smaller ones if you don't want to spend too much.

Hi there,

I am planning to use a set of 60 axles, but not sure what ratios they are. The vin of the car is the following: jt1wohj6000964983, the (uk) reg plate is from 1988.
it is a 4 cylinder diesel with a turbo, but the turbo is aftermarket.

Anyone can determine the diff ratio from the vinnumber?

Daan

quick60 wrote:mate, with a standard 2H 35's will slow you right down big time on the hills, but a bigger problem is off road where you loose your 1st low crawling ability because of the higher gearing. Downhill becomes too fast in the rough stuff, and you will be using your clutch a lot, having to go down under brakes, then you'll want the transfer gearing or diff ratios changed, then you'll want the...................goes on and on.


stick with the smaller ones if you don't want to spend too much.

Diesel 60's are bloody slow anyway in 1st low. IMO i think if you can put up with the slow driving on the roads the capability off road will be great Up the bush the gears are low enough in low to go slow enough so i say go for it

I had an HJ75 running 35x12.5R15 BFG Muddies. Same drivetrain as an HJ60, 2H, H55f and 4.11 diffs. It was bloody slow on the hills. Above 1200m elevation all I could pass on the road was a bicyclist with emphysema

Daan wrote:Hi there,

I am planning to use a set of 60 axles, but not sure what ratios they are. The vin of the car is the following: jt1wohj6000964983, the (uk) reg plate is from 1988.
it is a 4 cylinder diesel with a turbo, but the turbo is aftermarket.

Anyone can determine the diff ratio from the vinnumber?

Daan

BJ60 after 1987 usually gets a 4.11 ratio, but since yours is a Euro market vehicle, all bets are off. Look at the build plate on the bulkhead. If it says K08_ under "axle" it is a 4.11, if it says K05_ it is a 3.70 diff.

Dave

hokey wrote:Up the bush the gears are low enough in low to go slow enough

Not once you put larger diameter tyres on them, climbing is not too much of a problem, but going down steeps or large rock shelves is a problem, they run away a bit.

Agreed. The low first factor is gone with 35's or bigger. Up hill you lose road speed, downhill you gain it!

Ruffy wrote:Agreed. The low first factor is gone with 35's or bigger. Up hill you lose road speed, downhill you gain it!

Gotta hate that gravity
I was only saying the previous statement from driving a cruiser with 33's down rocky and in 1st low i found my self accellerating to get to the bottom. compared to my FJ40 with the same size tyre the 60 outcrawled it very easily. I didn't think that 35's would make much of a diff. How slow do you girls want to go

I got a 2h 60 series with 35/12.5/15 kellys its got 400k also, had it for 200k now. I found its slow on take off but once its up to speed it pretty much stays there. I tow a car trailer to Willowbank and back from Logan once a month, you know its there but I dont push it.
The sand is the big killer if you dont let the tyres down its a 1st gear job I find it easier to go in 3rd low range through soft stuff with the tyres down.
As for clearance all I got is a 4" shackle lift and I did that 12 months ago as I started to go a little bit harder when 4wding up the bush, (thanks to this site):lol: before that it was standard height.

Have you looked into the Jungle Trekkers instead? They come in 33" and 34".

Very good off road