Thread: Defender Tdi300 LT230 1.30 ratio

Originally Posted by C H T

James

Consider fitting a V8 ration fifth gear - on of my sons fitted one to a customer car - it has worked very well. FWIW I fitted a 1.2 TC to my defender when it had a 300Tdi in it - it went well overall, but became a 'hill detector'. I now have an Isuzu 4 BD1T in the vehicle which transformed the vehicle.

C H T

Im now going the 4bd1 and turbo when i can afford it so yours runs fine with the 1.2 ?? going the r380 conversion just awaiting delivery of bell housing fm NSW.

While not a directly on point of the OP. I have a Puma. Fitted 4.11's to suit the 35's. result is 8% shorter than factory 1.221 TC, 3.54 and 235's. It sat a little over 2200 rpm at 100 khp and felt over geared. i fitted 1.1 to the TC which dropped the rpm to 2000 at 100 kph (same as factory combo). The result is a shift into 4th on steep hills and no chance of holding 6th on any hill. Even on flat country roads i find i have to put the boot into it more than before to maintain speed. What i save in fuel by lower rpm, i spend because i need a heavier foot. While the numbers suggested i would be fine, the real world result was a truck that is gutless. Sometimes the number lie.