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LS1 Carb Conversion


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Did anyone see this Horsepower TV Episode last weekend? It was a re-run from June 6, 2009 original air date. I thought it was pretty cool yet different.

 

http://www.spike.com/full-episode/460-payoff-ls1-carb/32439

 

I guess this is for the guys that don't want to go through the hassle of converting their ride to EFI?

 

Has anyone done this, just curious if your numbers matched what the Horsepower TV guys received?

 

Good Articles:

 

~ http://www.chevyhiperformance.com/techarticles/0508ch_chevrolet_ls1_carburetor_power_increase/index.html

 

~ http://www.superchevyperformance.com/ProductDetails.asp?ProductCode=88958675

 

~ http://www.customrodder.com/tech/0510cr_gm_ls1_engine_carburetor_install/index.html

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I think Pop N Wood did this conversion before he was banned. I seem to recall that there were dyno numbers showing slightly higher hp than with factory FI, but I don't think they were his, I think they came from Hot Rod magazine.

 

Gimmee a sec and I'll post you some dyno charts... . The Carbed LSx runs right with the EFI versions and even better in some instances...:2thumbs: And it's drop dead sexy with a single 4bbl sitting on top!

 

Be right back...

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These Dyno charts came from this book;

Courtesy SA design

Dynoproven.jpg

 

There are even more Carb dyno sheets comparing different cylinder heads, cams, etc. Personally, I don’t put much stock in the actual numbers, just the shape of the power curve and when back to back such these are, the trends of what the changes produce are good “indicators”! :wink:

 

 

On to the charts…

FAST LSX EFI intake vs GMPP single plane and Holley 850

Engine; 408 stroker, (6.0L truck block), no specs on the cam sorry.

Courtesy SA design

LSxvsGMPP2.jpg

 

 

Edelbrock Performer RPM, (dual plane) vs GMPP single plane.

Engine; LS1 crate engine.

Lunati VooDoo 212/218 @ .050” .531” lift, 113 LSA

Hooker Long tube headers.

Barry Grant 750 Mighty Demon Carb

Courtesy SA design

RPMvsGMPP2.jpg

 

 

LS2 intake vs Edelbrock Performer RPM, (dual plane) and Edelbrock Victor Jr. (single plane)

Engine; LS1 crate engine

Lunati VooDoo 212/218 @ .050” .531” lift, 113 LSA

Hooker Long tube headers.

Barry Grant 750 Mighty Demon Carb

Courtesy SA design

LS2vssglvsdl2.jpg

 

LS2 intake vs Pantera EFI ITB’s

Engine; LS2 crate engine.

Crane Z series cam, (216/224 @ .050”)

Hooker long tube headers.

Courtesy SA design

LS2vsITB2.jpg

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