LS1TECH - Camaro and Firebird Forum Discussion

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- - 26915's and 26918's (https://ls1tech.com/forums/generation-iii-internal-engine/853657-26915s-26918s.html)

sammyb

Jan 28, 2008 12:05 PM

26915's and 26918's

Whats the difference? I was looking in comp book at wk and they say the same thing. max .600 lift, for ls1-ls6? Anyone got an idea?

oange ss

Jan 28, 2008 12:59 PM

915 = 105lb seat pressure, 290lb open press

918 = 130lb seat pressure, 320lb(?) open press

numbers may not be exact but they're close

sammyb

Jan 29, 2008 10:51 PM

so could the 26915's be used with a comp cam 232/234@50 .591/.598 112? Just wondering.

stevied916

Jan 29, 2008 11:02 PM

Quote:

Originally Posted by sammyb (Post 8598297)

so could the 26915's be used with a comp cam 232/234@50 .591/.598 112? Just wondering.

the 105 290 seat pressure is pretty low. You might get valve float. If not the 918s check out the afr 8019 springs (155 412)

socal

Jan 30, 2008 12:22 AM

the new 918 are said to be good now there were the 928's, we have them on our car no problemsjust make sure there silver in color w no blue strips

oange ss

Jan 30, 2008 10:21 AM

Quote:

Originally Posted by sammyb (Post 8598297)

so could the 26915's be used with a comp cam 232/234@50 .591/.598 112? Just wondering.

theoretically yes, but i wouldnt...915's are geared more toward smaller cams

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