Quote:
Originally Posted by 214Chevelle
A little off topic, but I thought the LS9 blower was only applicable to the LS3 type heads and not LS7. I know LS9 has it's own set of heads, but the port configuration is what I'm talking about.
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Used LS7 heads with tall deck LSX block - since required spacers between SC and heads, they were made to adapt LS9 SC to LS7 heads.
For all those claims of 800 HP LSA engines (or even mid to high 700), just do the math with a 1.9L SC and you'll see why not so likely if even possible. You can even download compressor maps including adiabatic efficiency, drive losses, etc. from Eaton website.
We've done a whole lot of work at Thomson Automotive with Eaton using factory GM housings and Harrop housings with TVS rotors - I'll dig up some it the engineering data - but can tell you I've never seen a 1.9L LSA SC make that kind of power - regardless of engine size. Ever.
BTW, Brian's Chevelle makes 850 HP / 930 TQ on pump gas. And this was built before our latest learnings (like what we did in Stielow's latest engine in Mayhem). Confident we can get another ~80-100 HP with what we've learned there. After all, his car is kinda 'soft'......
Dave