Thread: Highway cruising 300tdi

206k, std turbo 16psi, diff inter cooler (not sure on make), slight pump tweek, max egt seen is 680-700 on a big hill. Holds speed ok, all things considered

Originally Posted by Rick1970

206k, std turbo 16psi, diff inter cooler (not sure on make), slight pump tweek, max egt seen is 680-700 on a big hill. Holds speed ok, all things considered

hottest i ever got mine was 650C and i was crying. going up a big hill with head winds and camping loads. i was only going up at 100kmh though and eventually was at 80kmh by top of hill, partly due to me backing off throttle because of the 650C. i'm too kind to her.

Originally Posted by mrb505

I reckon they feel sweet at 95 true speed.

my last two have their sweet spot around the 105kph mark

my 130 pulling a 1 tonne van has no trouble cruising at 105kph

the usual hills and headwinds caveats apply but in my experience the 300tdi pulls as hard / well as a 3.5 v8 or 4bd1-t county up the same long hill, if not slightly better... and you don't need a fuel stop half way up the hill

Originally Posted by Rick1970

Happiest at 95-100 yes, but will cruise at 120 easy.
265/75 muds, 1.4 trans, b/bar winch roof racks steel rear bar fridge and a bit of gear in back.

I see you're running a Defender Transfer Case (1.4). I've always been interested in this and I reckon it's the way to go but it does mean your engine is revving a lot more so not sure what that does to your economy. I assume u have to use a GPS to check your speed ??

Well based on all that I think I am too kind to mine too.
Rarely see over 550 even with FIP at the aggressive setting - might have to up the fuel a poofteenth.

Originally Posted by Robmacca

I see you're running a Defender Transfer Case (1.4). I've always been interested in this and I reckon it's the way to go but it does mean your engine is revving a lot more so not sure what that does to your economy. I assume u have to use a GPS to check your speed ??

Gps yes, 100 indicated = 104 on gps.
Revs a tad higher than would be standard, but ok on 32" tyres. Had it on 31's (30.4") tyres for a bt, prob a bit too small with a 1.4 trans.
Havn't checked economy properly, but would be around 10/100. Will have to block off sill tanks and check properly one day.

Originally Posted by incisor

my last two have their sweet spot around the 105kph mark

my 130 pulling a 1 tonne van has no trouble cruising at 105kph

the usual hills and headwinds caveats apply but in my experience the 300tdi pulls as hard / well as a 3.5 v8 or 4bd1-t county up the same long hill, if not slightly better... and you don't need a fuel stop half way up the hill

85-90 feels good in my 130 and let’s me have a good sticky beak as I get along

Originally Posted by Rick1970

Gps yes, 100 indicated = 104 on gps.
Revs a tad higher than would be standard, but ok on 32" tyres. Had it on 31's (30.4") tyres for a bt, prob a bit too small with a 1.4 trans.
Haven't checked economy properly, but would be around 10/100. Will have to block off sill tanks and check properly one day.

WOW, I would have thought it would be the other way around and even a little bit worse like 100kms on speedo but like 90 on GPS.... Is yours a Manual or Auto?