Thread: 4BD1 performance

Someone makes an aftermarket gearbox which drops in place of an R380.
Can't find it now but it was linked up on Pirate a while ago.

Originally Posted by Dougal

Someone makes an aftermarket gearbox which drops in place of an R380.
Can't find it now but it was linked up on Pirate a while ago.

Possibly Milner? If not probably one of the other UK offroad racing companies.

Dougal, any chance of a slightly higher res version of the 4bd1 power curve.

Cheers,
WR.

Originally Posted by wovenrovings

Dougal, any chance of a slightly higher res version of the 4bd1 power curve.

Cheers,
WR.

Sure. PM me your email address.

That torque curve is incredibly impressive...I see why everyone has been saying this Isuzu is unbeatable off-road...I want one!!!

Originally Posted by def-90

100k's/hr in 3rd by geese, i'm sitting at 2250rpm on 35's with my 5speed (LT77) and she is screeming! i'd be lucky to get to 60 in third!! hmm i suppose you've got airconditioning too

Chuck and I discussed top speeds once (he had tested his...), so I went and did the same (late one night on the highway).

If I remember correctly, my county (4BD1/LT85/LT230(1.003:1) with 235s) hit the Governor at 90km/h in 3rd and I think 130 in 4th. Mine has always revved fairly smoothly though - some get a bit harsh up the top end.

Originally Posted by isuzurover

Chuck and I discussed top speeds once (he had tested his...), so I went and did the same (late one night on the highway).

If I remember correctly, my county (4BD1/LT85/LT230(1.003:1) with 235s) hit the Governor at 90km/h in 3rd and I think 130 in 4th. Mine has always revved fairly smoothly though - some get a bit harsh up the top end.

I rev mine to the governor, 2nd-3rd and 3rd-4th most times its driven, once its warm

Can't hit the fuel governor in top, WAAAyyyy to slow for that (LT95 and 32's)

Have to give it a birfday some time soon, NEED that turbo and extra cab

Ok well i think the county i had that could do 100km/h in 3rd had 1:0.996 gearing in the transfer case and a LT85. It also still had the lock wire on the max speed screw so the governed speed was still right.
It was a bloke that test drove it when i was selling it that did that, I never explored to top end that much myself as it isn't the best part of the isuzu power curve.