Hi All,
I am looking to buy a gearbox for my Torana and have a couple of questions a calculator can't answer so hoping someone might have gone through this before me and can help shed some light.
I've got a 355 VN headed stroker engine that is good for almost 530HP at the flywheel at 7,300 RPM.
My LX Torana will be running a 295/50/R15 tyre - 26.6 inches tall.
Diff ratio is 4.11:1
The box I'm looking at comes in 2 overdrive ratios and not sure which to buy. They are 0.82 and 0.64.
The car won't see a lot of highway driving - only a few times a year.
Using the calculator, the engine at 110 km/h will rev at approx:
1. 3,000 RPM with the 0.82 ratio OR
2. 2,300 RPM with the 0.64 ratio
Is 2,300 RPM too low to drive the car for a period of say 2.5 hours, eg from Sydney to the South Coast where the road is hilly?
On the other hand, is 3,000 RPM too much to be revving the engine for 2.5 hours?
Thoughts?
Thanks all...