whats your average revs on your 8 Valver?

[bampotman]

Hi,

I have just noticed something thats got me thinking what the hell is going on. My mate just got a new car, an L plate 8 valve gti. I took it for a test drive the otherday and noticed that at 80 his car revs at about 3500 rpm. I have a P plate 8 valve Colour concept gti and that revs at 4000 rpm at 80 and at 2000rpm at 40.

What does your car rev at cus I don't know whose car is right.

Thanks

[Bazzer]

Reckon mine is about 3500 at 80 but I'll try and remember to check on the way home tonight!!
(97 P CC btw)

[Overseer]

revs under load are directly related to gearing.. right?

like you said for your car 2000rpm = 40, therefore 4000rpm = 80.. double revs = double speed  ih the same gear.


so you have to test both cars in the same gear at the same revs.

i could say mine does 60mph at 7000 revs.... but thats just about to hit the redline in second..


if there is still a different i guess maybe one box is different either by model year or been replaced with a different one?

[bampotman]

OK. I double checked today. My car is deffo revving at 4000rpm at 80 in 5th gear compaired to now  2 confirmations of 80 at 3500rpm in 5th.

What could be causing this? The engine is standard and I have not remapped the ECU myself. Anyone have any ideas? Could a different gear box or changes to it explain it as 500 rpm difference is quite big.

Thanks

[Overseer]

as i understand things you need get readings of speeds at a particular RPM. not the other way around.

so get say...

2000 RPM in 1st =
2000 RPM in 2nd =
2000 RPM in 3rd =
2000 RPM in 4th =
2000 RPM in 5th =

through these differences you'll be able to see whats up with the gearing.

if there is a difference (i'm sceptical) the only reason would be a different gear box

[Bazzer]

as i understand things you need get readings of speeds at a particular RPM. not the other way around.

so get say...

2000 RPM in 1st =
2000 RPM in 2nd =
2000 RPM in 3rd =
2000 RPM in 4th =
2000 RPM in 5th =

through these differences you'll be able to see whats up with the gearing.

if there is a difference (i'm sceptical) the only reason would be a different gear box

What he said.... Mine is doing 70 at 3000rpm. Couldnt get to 80 cos it's a mk3 slug           

[Overseer]

ok i know my car's a valver.. so totally diff gearing..plus it rev's up to 7000.. but still  i got these figures out of mine earlier which follow a nice set patten


2000 RPM in 2nd =  20 ish
2000 RPM in 3rd =   30 ish
2000 RPM in 4th =   40 ish
2000 RPM in 5th =  45 ish

[bampotman]

I'm gonna have to check this out tonight on the way back from work and see what figures I get

[bampotman]

Ok we have the following speeds in my car

2000 RPM in 1st =  10
2000 RPM in 2nd = 15
2000 RPM in 3rd =  25
2000 RPM in 4th =  33
2000 RPM in 5th =  40

[sellers]

the spedo could be out but not by 5mph consistantly so really im no help

anyway what am i doing in a mk3 section

bye