Outer Limits 4x4 Board

Hey all,
Would S4 Rockhopper T case gears + 31" MT+ stock Wt diffs be way to over geared for highway driving. I can get these gears for a good price so i am wondering how it will perform on road as its my daily driver and i do 350km per week. Any1 have any idea what rpm this combo would produce at 100km/hr.

shouldnt be all that bad somewhere round 3800 rpm at 100 kays

Yea suppose thats not to bad. Just gotta figure out how to stop my engine pinging so when i get the gears it can handle the extra rpm. Any tips on how to do this?

sanger wrote:Yea suppose thats not to bad. Just gotta figure out how to stop my engine pinging so when i get the gears it can handle the extra rpm. Any tips on how to do this?

What octane fuel are you using?
I was told when i bought my zuk that the engine pinged with regular fuel but didn't with a little higher octane so thats what I use, and it works fine, but I havn't tried using regular octane yet so I'm just going by what i was told.

Stubbs

yea i think thats where i am comin unstuck
I'm using ethanol fuel which is cheep but has crap all octane bout 91 RON i think. Will have to try some Optimax or something similar.

See what happens

Im running s3 and 31 simexs and 3.9 ratios instead of 3.7's. Sits at 3700 at 100 and is quite driveable. For a 1.3, a pretty good combo.

I'm sure it won't be too long till you upgrade to some bigger rubber too and that will drop the rpm down

Yea thats true but not sure what size tyre i can run on standard diffs and driveshafts/cv joints. Could i run 32"-33" with 2" body lift +1 " shakle extension. I read somewhere u have to redrill spring hangers orsomething like that.

sanger wrote:yea i think thats where i am comin unstuck
I'm using ethanol fuel which is cheep but has crap all octane bout 91 RON i think. Will have to try some Optimax or something similar.

See what happens

Going with Optimax or similar may be overkill a bit for what you'll probably need, I only need premium which doesn't hurt the wallet as much as going with Optimax, and for some reason I am remembering someone telling me that octane from Optimax is too high, but that may be something totally different that im remembering
Hope this helps

Stubbs

Cheers Stubbs ill have a bit of a play around with different fuels and see what the little zook likes best.

Check your timing. Your might not be using the right timing marks or dizzy might be out a tooth on the gear. Or wrong spark plugs.

Spark plugs are ok cause i replaced them when i bought the zook. Ill check timing and go for a better quality fuel and see what happens.

But as for fitting 33"s what mods apart from 2 " bodylift and 1" shackle lift are needed?

sanger wrote: But as for fitting 33"s what mods apart from 2 " bodylift and 1" shackle lift are needed?

You'd probably need 2" springs and cut a fair bit out of the guards if keeping is spua. Else going spoa would probably clear it without the need for cutting.

zooker wrote:

sanger wrote: But as for fitting 33"s what mods apart from 2 " bodylift and 1" shackle lift are needed?

You'd probably need 2" springs and cut a fair bit out of the guards if keeping is spua. Else going spoa would probably clear it without the need for cutting.

If he choses to go SPOA with extended shackles, then he prob wont really need much trimming at all with 33's, depending on the way he sets it up and how much flex he wants. To stay SPUA 2 inch lifted springs, bodylift and shackles, then maybe a virtual lift and a bit of playing round should do it. If you wanted to cut it up bit more, you could do it without the bodylift. Stumpeds new body can clear a 33 easy with just 2 inch springs and shackles.

Layto....

Layto....

got the gears at willowbank yesterday let u know the outcome when there fitted.

he means willow glen,didnt remember seeing any drag racing out there sanger

My bad thanks for the heads up.

its all good mate how did ya enjoy ya ride in mine today

Awsome dude really was an eye opener as to what shit u can drive with the right set up and a bit of brains. (dont forget the big balls aswell) .