Well I have A B18B1/B18a1 Engine Can anybody provideme with links
or info on what the compression should be thanks!

 

200+ ideally.. But anywhere from 170-200 is good AS LONG AS all cylinders are within 10 of each other.

 

So Couple hours ago I did the test and most cylinders were 130 and up thats not good huh?
well so what can i do to fix this, should I buy new piston rings or what else could cause it?

 

either that or bent valves. You might not have done it correctly either. The engine must be warm and the gas pedal all the way in (throttle body open all the way)

 

Yea Im gonna do it again because we did it quickly
would you know the right procedure to do it?

 

unplug ur fuel injectors also, hold throttle wide open, and make sure ur engine is warm, let it crank about 5 times

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JSpeK_EM1 &raquo;</TD></TR><TR><TD CLASS="quote">unplug ur fuel injectors also, hold throttle wide open, and make sure ur engine is warm, let it crank about 5 times </TD></TR></TABLE>

Crank until it doesnt seem to increase anymore, a LS should he 180-190

 

appreciate it

 

as long as your results are consistent and within 10-15% of each other, your engine is fine.

 

My LS civic is smokin blue and would it loose compression if Oil control ring is bust
and im concerned because the B18a1 Block might
have too may miles on it

 

Loss of compression is either bad rings or bent valves, or bad valve seals. But if u know any history of the engine, it might help.

 

would the compression change if I replace the pistons with PR3's?

 

i think it would only change if u would change the pistons to either high or low compression pistons with head work. Also the thickness or ur head gasket.

 

Are the piston ur gonna replace stock replacements??? or performance

 

Stock PR3's

 

if ur refering to the pr3's from a b16, it will be high compression since b16's are 10 to 1 compression stock. High rev, no torque. Ur LS is a torque motor, get LS pistons if u wanna feel the power

 

really?

 

What would be PRO'S and CON's of the PR3 pistons?
and LS pistons?

 

well, i have a 2000 si w/b16a2. i guess i have the pr3's ur talking about since they're stock. Well, my compression is 10:1. 160hp, 116lbtq. and i have to use 91 octane gas or higher or else my engine will knock.
My friend has a LS with the b18b1. Rated 140hp i think with 128lbtq. Low compression which i believe is 9:1. it redlines at 6800 while my car redlines at 8000. Its pretty much if u have low compression, u have more tq than a high compression. i mean the LS integra has mor tq than a GSR. But less than a Type R. I believe GSR have 126, and Type Rs have 132. Well, thats pretty much what i know.

 

pr3's will give you high compression, you might feel a slight power gain, but with high compression comes high octane gas, otherwise you will be looking at detonation, also I would not rev a stock LS bottom end past 7500rpm and really 7500rpm is pushing it, the rods are a bit weak, but the torque on it is fantastic, personally I would go ahead and run a small turbo with like 7psi, it would give you the bump in hp like a vtec motor and turbo's are fun especially an ls turbo

 

good info in here

 

Alrighty I did the compression test asyou guys told me It came Out---185-175-178-175


Modified by JDMbullshit at 4:36 PM 7/22/2006

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by elguluso &raquo;</TD></TR><TR><TD CLASS="quote">pr3's will give you high compression, you might feel a slight power gain, but with high compression comes high octane gas, otherwise you will be looking at detonation, also I would not rev a stock LS bottom end past 7500rpm and really 7500rpm is pushing it, the rods are a bit weak, but the torque on it is fantastic, personally I would go ahead and run a small turbo with like 7psi, it would give you the bump in hp like a vtec motor and turbo's are fun especially an ls turbo</TD></TR></TABLE>

the rods are fine. its the rod bolts that are the weak link in most honda motors
if you have arp rod bolts you can rev to 7500

jdm bullshit: with those compression numbers your motor is fine

 

What about the valvetrain will they holdup to 7500?

 

and will i have more power or equal to the LS pistons with pr3's?