Saturday Night Racer - Rear Gear Ratio

Redalert144 LMR Senior Offline IMCA Stock Cars Rule! Posts: 269 Yuma, Az	Re: Rear Gear Ratio Reply #22 - 05/03/11 at 12:14pm No it's the oil deflecting skirt I guess
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streetstockracer LMR Member Offline I love YaBB 1G - SP1! Posts: 164	Re: Rear Gear Ratio Reply #23 - 05/03/11 at 5:36pm If you broke the oil shield right below the retainer, you should check valve spring pressure. Maybe you are "floating" the valves and bouncing the valve springs off the seat in the head. Could turn ugly real quick if the keepers fall out of the retainer.
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Redalert144 LMR Senior Offline IMCA Stock Cars Rule! Posts: 269 Yuma, Az	Re: Rear Gear Ratio Reply #24 - 05/03/11 at 5:49pm Thanks thats what I believe is happening and as soon as we get the car back from frame shop, that's what we are going to do
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DaveBauerSC6

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Re: Rear Gear Ratio
Reply #25 - 05/04/11 at 7:46pm

A couple assumptions, you are running stock oil deflectors - you are running stock springs. Not many builders would reinstall the deflectors on top of racing springs. The idea is to reduce valvetrain weight to increase the motor RPM at valve float. Hopefully above what you are geared for and the strength of the rotating assy.
Replace all the springs with racing springs, toss the deflectors, if you have the exhaust rotators, toss them too and install conventional retainers.
Good luck.

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Redalert144 LMR Senior Offline IMCA Stock Cars Rule! Posts: 269 Yuma, Az	Re: Rear Gear Ratio Reply #26 - 05/04/11 at 8:39pm That's exactly what's going on, new springs are on order but won't be in till monday. Just going to have to shift at, which I prolly should have been doing before.
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Redalert144 LMR Senior Offline IMCA Stock Cars Rule! Posts: 269 Yuma, Az	Re: Rear Gear Ratio Reply #27 - 05/08/11 at 6:32pm Just to let you guys know, we got the new valve springs early and were able to install them before last nights race. That totally fixed the problem pulls strong the whole way, just want to say thanks again to everyone that offered help
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pinky

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Re: Rear Gear Ratio
Reply #28 - 05/16/11 at 11:25am

What happened to you in the main last race? Sounded good til the timing went out...or something electrical? As for your gearing...like one poster said...its the final gearing that matters. Back in the day I ran a pontiac dana 3.73 with about a 1.76 transmission gear(2nd in a 4 speed?) for total gearing of 6.55. Our track was a good deal smaller than Yuma and I'm sure we ran a lot less RPM than you are. From the stands...you car looks real good...I wouldn't change it too far if you are getting the rpms the engine can handle. Seems like a lot of Rpms for a factory stock anyway.

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Redalert144 LMR Senior Offline IMCA Stock Cars Rule! Posts: 269 Yuma, Az	Re: Rear Gear Ratio Reply #29 - 05/16/11 at 12:36pm We had a ignition wire that runs to a fuse come loose, never came off just got jiggled. So that's all fixed, we had a valve spring that went soft on us cause the valve to float. That last race with the springs changed out, car ran excellent all the way to 6k.
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jah67 LMR Rookie Offline Dirt Late Models Rule! Posts: 37	Re: Rear Gear Ratio Reply #30 - 08/04/13 at 2:01am sounds like your cam is limiting the RPM of the motor...
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