Thread: revs at 100ks

Mine is a 96 Discovery V8i Auto and does around 2600rpm at 100kph. Mine is the 3.9 injected V8. Hope that helps.

hmm, i think my 98 v8 auto disco does 2200 rpm @100kph.....not 100% though.
i run 245/75/16's.

old fossil - what tyres do you have?

I remember a post so time back on this topic. I think it should be around 2200 to 2400 from memory. Mine's a 3.9 Auto and was around 2200, fitted bigger tyres now so it is different.

found out to-night that this 1994 model has the gearbox and front diff from a 1993 model,
would this alter ratios ?
darryl

Originally Posted by Jim621

hmm, i think my 98 v8 auto disco does 2200 rpm @100kph.....not 100% though.
i run 245/75/16's.

old fossil - what tyres do you have?

tyres are 245/70R 16.
GPS reading 100ks

Originally Posted by old fossil

hi there ,
have a 1994 discovery v8 auto, eventually got it on the road,
is 2800 revs right when doing 100ks or is this to many revs,
does the same when coasting along , no load,
revs do drop when you hit 90, apparantly dropping into overdrive,

thanks
darryl

I also have a 94 Discovery, doing around the same rpm at 100kph as yours.

We also have a 96 Discovery and so does my father,
both of them do around 2200 at 100kph.

All vehicles are V8I and auto with standard size wheels/tyres
Havent worked out whether it's the diffs or transfer case which has the different ratio's.
I know it's not the transmission as it's been replaced from a 97 disco, with no change in RPM
Cheers Luke

Originally Posted by roverv8

I also have a 94 Discovery, doing around the same rpm at 100kph as yours.

We also have a 96 Discovery and so does my father,
both of them do around 2200 at 100kph.

All vehicles are V8I and auto with standard size wheels/tyres
Havent worked out whether it's the diffs or transfer case which has the different ratio's.
I know it's not the transmission as it's been replaced from a 97 disco, with no change in RPM
Cheers Luke

thanks luke,

does any other members with 1994 discovery 3.9 autos do 2600-2800 revs at 100ks
is the 1993 discovery auto the same as 1994? ... ( ratios etc. )

thanks
darryl

Originally Posted by old fossil

hi there ,
have a 1994 discovery v8 auto, eventually got it on the road,
is 2800 revs right when doing 100ks or is this to many revs,
does the same when coasting along , no load,
revs do drop when you hit 90, apparantly dropping into overdrive,

thanks
darryl

Is your gearbox kicking into overdrive at 80kph?

your torque convertor is meant to lock up above 80.
Steve