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Effective Gear Ratio Calculator
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Specs. for most Domestic Engines

 

 

 

 

News & Events

What's been going on at SD
07.14.11
We'll to say things have been challanging since the landslide that took out our old shop in 09 would more >>
Northwind Intake manifold Dyno Testing.
12.23.09
Well we had a chance to test the new Northwind on a 535 pump gas hyd. roller engine recently against more >>
2009 What a Year!!
12.19.09
Well we're coming to the end of 2009, to say it's been a challenge is an understatement. Three days into more >>