gearbox or diff need your help???
Posted 26 June 2008 - 07:40 PM
my 240z has a 3.5l v8 with a supra 5 speed box in it and diff has just been changed to a r180 3.54 ratio.
the car is still reving very high in all gears for example in 5th gear at a 110km its reving at 5000rpm
what could be the problem
diff has been changed which i thought would of fixed the problem
could it be the gearbox??
any ideas need help
Posted 26 June 2008 - 08:00 PM
What is the maximum speed in 1st 2nd 3rd and 4th?
What is the Highest speed you have had the car up to?
Is the speedo accurate?
Is the tachometer accurate?
This will give a better picture of what is going on. Also try to find out some more information on the gearbox and if you can, who did the conversion.
Posted 26 June 2008 - 08:06 PM
Also, how do you know the Tacho is accurate?
Posted 26 June 2008 - 08:07 PM
havent pushed it past that
and when in 5th on the freeway 110km 5000rpm
at 130km 6000rpm in 5th
speedo is accurate
tachometer im pretty sure is accurate due to the sound of the car and how loud it is
it might be the gearbox ratios im not sure but diff was changed
Posted 26 June 2008 - 08:10 PM
how can i check the tachometer??
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