[IROC383]

Hey guys,
Anybody use a Rankin in their race car? Mine makes a LOT of noise while driving. I know th usual stuff.
Could there be a shim option to make shifting not so hard on the gears. I want to make sure I'm not damaging my tranny before I ruin it. Thanks for all the input.

[Beach Cruiser]

Thanks Alan,
I guess I should pull the plate and see how it's plumbed inside, so I can see if I need an external pump or not. A lot of these cup transmissions have a pump on the mainshaft and a Squirter bar aimed at the gears. Just looking for info on Rankin, not much online that I could find.

[Shortcutsleeping]

Thanks Alan,
I guess I should pull the plate and see how it's plumbed inside, so I can see if I need an external pump or not. A lot of these cup transmissions have a pump on the mainshaft and a Squirter bar aimed at the gears. Just looking for info on Rankin, not much online that I could find.

I talked to George (aka 'the old man') at Jerico about this years ago and he told me that if you're pushing cup power (over 750 at the crank) and over 45 minutes then yeah, likely should have a cooler, but even then it was marginal. Over an hour race? yes, if running "serious power".

I've never seen a pump on the mainshaft, but I've seen the jericos that had the tailshaft mod with a pump there and they were notorious for having problems. I don't know of any cup or busch team that ran them, they went to a tilton style elec pump to leave off until temps came up. A few teams even ran a two stage on the rear axle, one stage for the diff, one for the trans.

Remember...a cup team is a WHOLE LOT different than the typical club person. First, not many push that level of power. Second, we arent going through our boxes after every weekend of use and setting main lash and fork tolerance based on wear and expected temperature range. I've not touched the inside of my jerico in four years and I don't run a cooler to save the weight. I'll drain the oil every half dozen races or so and put fresh stuff in just for peace of mind. I have decent power, but still only run 30-40 minute races maximum.

I'd need better pics of the case from the sides and top to get an idea of the fill/return/vent/drain setup and potentially would need to pull the side cover and see what the oil splash/return setup is like. So many of these boxes have been modified by shops that do it totally different than other shops and unless you open it and know what you're dealing with, you're guessing.

Costas
cars and such...