Thread: want a faster fender

If you change to disco transfer gears in a 130 you will regret it. That vehicle is too heavy to get it moving.
I would suggest going to slightly taller tyres and tweaking the fuel injection pump for some more go.

I have a friend with a 130 CC which has disco transfer gears and if you want to swap transfer cases he will gladly do it.

Regards

John D - Defender 110 2.4

Originally Posted by rick130

No you don't. Low range is an identical ratio in all the LT230's, regardless of the high range ratio.

The only way to get a lower low range is to install the Maxi low range gear set or use an Ashcroft Underdrive that bolts onto the back of the t/case.

Well that confuses issues.
There is quite a bit written on the web on the replacement aschcroft high range gears for the Defender and most often there is reference to keeping the lower Defender low range by installing these gears and getting a higher high range for on road and lower on road rpm. It is stated on several reviews / statements that the Defender low range is in fact lower than the Disco. Fact or Fantasy?????????
Will have to look at the ratios in the Rave when I get home and do some more research. If that is the case then it is probablly much easier and not much dearer to get a Disco LT230 and change out.
Thanks for the info, but forgive me as I am going to double and triple check before I commit to one method or the other.
Does anyone have the ratio's at hand for reference?

LandyAndy look out if you come down at Xmas, you may find me under Betty pulling out her transfer box.
Cheers
Craig

Dave Ashcroft has been making a few posts lately, so hopefully he'll chime in.
There are some small variations in the gearing which are all to do with the primary reduction gear in the case.
According to my sources (Maxi Drive tech catalogue) these are
26/41 = 1.557:1
28/44 = 1.557:1
38/59 = 1.552:1

all the low gear pinions are 19 teeth which is 19/41 = 2.105:1

Multiply your low range gear by the primary reduction gear to get your low range ratio.
They are basically all the same low range ratio.

Several things to note:
1. All LT230 low range ratios are the same -
2. All Dicso LT230s have 1.2:1 high range which gives just ove 2600 rpm at 120km/h in a Defender.
3. 1.2:1 high range will make the vehicle a bit of a hill detector, but that is overcome by changing down a little earlier.

Verdict: I fitted a 1.2:1 (Disco) transfer case to my Defender 110 (always heavily loaded - not much lighter than a loaded 130) before the Isuzu was fitted. The vehicle was faster point to point, better on fuel, quieter - downside a bit more gear changing. If I had not fitted the Isuzu I would have retained the 1.2 TC. 120 km/h cruise was very relaxed.

PS Low Range 3.321:1, High Range (Defender) 1.4:1; or (Disco) 1.22:1. A disco TC in a Defender raises high range by approx 16%

Fast Defender WTF would you buy a Defender if you wanna go Fast.......
Get a Disco or a newish jap thingy.......poor ol fenders weren't engineered to go Fast...they were engineered to go Anywhere.
Now onto the next fantasy post.....

Will it cruise at 130 kph now? Or is it just a matter of being more comfortable?

Irrespective of gearing, it takes the same hp to sit on say 130 kph. If it struggles to maintain speed, more hp is the go. If it goes ok, doesn't die too badly on hills, then yes taller gearing will make for a more relaxed vehicle.

I'm assuming you have 1.4s in the t/case. Swapping to 1.2s makes a 15% difference in the revs. Swapping to the D2 quiter gears makes ahuge difference in noise & refinement.

I'm surprised at the earlier post that the 1.2Q Disco gears didn't work. I have that conversion and its the biggest single improvement in making the Defender a blacktop tourer. It transforms the car on the open road. I can onlly guess that the 130 with these gears is down a bit on power and the taller gearing made it worse. Mine's a TD5 with a mild chip. It will hold 5th gear on cruise control on 99% of freeway & highway hills.

Regards
Max P

How about this - 132 bhp and 340 Nm (250 Lb.ft) Torque Wouldn't this remap completely change the torque/power curves and rev response?

JE Engineering Defender Diesel Engine Upgrades

tusker its a 98 tdi 130 it sit on 120/125 but its doing 3000rpm pulls quite well up cathrine hill changing down comes over the top sitting on 100 in fourth so gearing is an issue along with hp i,ll never get rid of it but when the wife blasts past in the gu patrol its an issue