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Tech Talk => Engine Mechanical / Electrical => Topic started by: vedo71 on January 16, 2015, 07:43:13 PM

Title: Reversion/ cam specs
Post by: vedo71 on January 16, 2015, 07:43:13 PM

I'm building an ls motor for my jet and I would like to get the largest can without reversion problems can anyone help me out with the correct specs to look for and what to avoid


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Title: Re: Reversion/ cam specs
Post by: vedo71 on January 18, 2015, 06:11:24 AM

Nothin?


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Title: Re: Reversion/ cam specs
Post by: mash on it on January 18, 2015, 07:09:59 AM

What type of exhaust? logs and snails, or headers.

On a bbc, ABOUT 230* for logs and snails, and well into the 250* for wet headers.

Some will be trial and error with an ls.

Compression ratio, intake design, and how the cooling is plumbed can/will effect (affect?) reversion

more info is needed.

Dan'l

Title: Re: Reversion/ cam specs
Post by: vedo71 on January 18, 2015, 03:45:58 PM

9.6:1 compression, marine power center riser manifolds, water ran through thermos tack setup


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Title: Re: Reversion/ cam specs
Post by: steves86ta on January 26, 2015, 02:20:16 PM

Quote from: vedo71 on January 18, 2015, 03:45:58 PM

9.6:1 compression, marine power center riser manifolds, water ran through thermos tack setup


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Id say something around the 230 range, but LSA has a lot to do with it and also the overlap.

In comparison, ill be running headers, dry at idle and manually injecting water and i just ordered a 235/242 .621"/.592" 111+3 cam.

if i was looking for a "wet" exhaust system, id look at somehting around 223/230 maybe this one http://www.briantooleyracing.com/naturally-aspirated-ls1-ls2-stage-i-camshaft.html (http://www.briantooleyracing.com/naturally-aspirated-ls1-ls2-stage-i-camshaft.html)