[Land-speed] Real Racing --no rant

[Doug Odom]

Sparky, Sounds more like an oiling problem to me. Are the thrust bearing 
surfaces showing any lack of oil. I do some things to my mains in the small 
blocks that are not DART block. The rods will throw the oil off because of 
centrifugal force faster than the system can keep up at a high RPM for a 
long period of time. LSR being about the only type of racing where you don't 
lift for two minutes or more. With the dry sump system were you putting oil 
in both the front and back of the block? I know GM had some issues with the 
rear main thrust wearing out and changed bearings. I always liked the 
Vandervell bearings because the thrust was staked and not molded to the rear 
main.

The reason I don't think the harmonics is the issue is I have run both 
flexplate and flywheel  9500 at Bonneville with no converter and see no 
difference in the bearing surface.

Big Ditch Doug


>I have a recuring problem---I am having issues with the back rod journasl 
>and mains---We have lost these with and with out dry sump--I am begining to 
>suspect harmonics---
>
> I run a flex plate with no converter and a circle track type auto pum 
> drive cupler--I am thinking of running  clutch type flywheel instead of 
> the flexplate---
>
> thoughts and comments  thanks sparky