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901 gear ratios
Posted: Wed Aug 02, 2023 7:16 pm
by keith fellowes
A mate has a 901 gearbox with gears ADIOT in it
We know it is not standard gearing but could it be a setup for rallying?
Anyone any ideas?
Re: 901 gear ratios
Posted: Thu Aug 03, 2023 8:13 am
by Mike911scrs
HI
has the box a Std 7:31 CWP, if so
Approx ratio speed due to tyre size
Max speed to 7.000 RPM
1st A(Std) 38.4 MPH
2nd D 54.3 MPH
3rd I 76.6 MPH
4th O 97.6 MPH
5th T 118.8 MPH
that is with a MAX of 7.000 RPM, with the ratio change around the 5.000 rpm mark for 1st >2nd and 2nd >3rd, rest are above the 5.000 mark
regards mike
Re: 901 gear ratios
Posted: Thu Aug 03, 2023 11:23 am
by keith fellowes
Hello Mike
Don't know about the CWP but will pass on the information
Thank you very much
Re: 901 gear ratios
Posted: Thu Aug 03, 2023 2:20 pm
by Mike911scrs
Hi
forgot to ask;
what year is the box and is it a Ally case box or Mag
I take it you have it in bits to work out the ratios ?
regards mike
Re: 901 gear ratios
Posted: Thu Aug 03, 2023 7:24 pm
by keith fellowes
The box came along with a lot of other parts as part payment for an Avenger rallycar!
The box is complete and I have no idea what type of case it is
It is for sale, if you're interested I can put you in touch
Keith
Re: 901 gear ratios
Posted: Fri Sep 01, 2023 2:40 am
by perry911
What is the gearbox numbers? There are two different stampings.
gearbox number
gearbox type.
These will tell all.