what is the avarage compression on a ls vtec with b16 and with ls pistons????
#1
what is the avarage compression on a ls vtec with b16 and with ls pistons????
im just wondering when i go to do a compression check to see what i should be looking for
with b16 pistons the compression should be around 11-4-1 to 11-7-1
and with ls pistons 9-4-1 to 9-7-1 just wondering because i didnt build it. just got the block on the head and fixed alot of ---- that was fucked up, the guy said it had all this ---- but i dont think it does, but just wonderin on what compression #s across the board i u experienced when u did a test, and is there any other way to find out what i have in it besides pulling the head off?thanks -blake
with b16 pistons the compression should be around 11-4-1 to 11-7-1
and with ls pistons 9-4-1 to 9-7-1 just wondering because i didnt build it. just got the block on the head and fixed alot of ---- that was fucked up, the guy said it had all this ---- but i dont think it does, but just wonderin on what compression #s across the board i u experienced when u did a test, and is there any other way to find out what i have in it besides pulling the head off?thanks -blake
#3
Re: what is the avarage compression on a ls vtec with b16 and with ls pistons???
#4
Re: what is the avarage compression on a ls vtec with b16 and with ls pistons???
Originally Posted by SinisterCRX
#5
Re: what is the avarage compression on a ls vtec with b16 and with ls pistons???
either way it could be anywhere from 200+ all the way down to nothing, it depends on what shape the rings/valves etc. are in, you need a boroscope to look at the stamp on the top of the piston if you dont want to pull the head, any shop will have a boroscope, if its stamped pr3, you have b16 pistons, if its stamped pr4 you have b18a/b ls pistons....
#6
Re: what is the avarage compression on a ls vtec with b16 and with ls pistons???
Spend the 50 bucks and buy a headgasket. 2nd compression tests are just that. Motor could need a rebuild and have high compression pistons and throw 160's. Also larger cams bleed of compression
#7
Re: what is the avarage compression on a ls vtec with b16 and with ls pistons????
ya i was thinken of it, i have a honda head gasket to throw on already, just kinda lazy lol, i guess ill do that when i do my transmission this week. -blake
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