Gear Change

[LateModel B23]

Raced the old DW8 last night. It is still a 9" rearend car and has a 5.29 in it. Motor only turned 6800 heat and then 7100 feature. I need to get it up to about 7600-7800. Any thoughts on ratio to go to?

[powerslide]

What were you running with the quickchange?

[LateModel B23]

Never ran this motor in the car with the QC. The last motor that was in this old car was 421 about 2 years ago and it was good with the 5.29. I can borrow a 3rd member that is 5.42 - but I would like to be good on the ratio when I change it.

[LateModel B23]

Is changing the gear a big job for you?

When you get to be my age alot of things are not as easy as they used be - trust me.

Anyway, thanks for the advice on the 5.83. That is the sugestion(s) I am looking for.

[powerslide]

I think it's about 200-300rpm per 9in gear jump.

[LateModel B23]

I looked and I have a 6.00 on the shelf. I just don't want the car to be done at or before the flagstand. You know how the Bowl can be.

[powerslide]

Put it in and put the chip at 7800. Dyno sheets on the motor and how fast it falls off?

[LateModel B23]

I will change gears at least 4 times this week.

racing mon tue wed thur

I am not sure of the exact point you are trying to make, so I will say this: I wish we had the opportunities to race that many times a week, at least one of the cars I own and sponsor would be a part of it.

Now on another note let me just say that I sincerely hope that you or anyone else NEVER-EVER has to go thru what I am dealing with. There was a time when I would have been able to change the 3rd member in a 9" Ford 9 times before breakfast and another dozen times before lunch. I wish I still could. Please enjoy your racing and your good health every day that you can.

[Powerglides]

7600 RPM /7100 RPM X 5.29 = 5.66 For 7600 RPM I would run a 5.67
7800 RPM /7100 RPM X 5.29 = 5.81 For 7800 RPM I would run a 5.83

[LateModel B23]

Thanks for the info Powerglides.