Compression numbers.....advice?

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Old Mar 28, 2003 | 01:37 PM
  #1  
RacerXI's Avatar
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From: Dothan, AL
Default Compression numbers.....advice?

160, 70, 160, 160
jrsc@8psi 3.8" blower pulley
dsm 450's
hondata
i/h/e...untuned.
Any words for the unwise so as I don't really fawk up my bottom end? thanks in advance. I'm thinking of going back with forged pistons/rods of the stock compression.
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Old Mar 28, 2003 | 03:52 PM
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From: Saint Petersburg,, FL, USA
Default Re: Compression numbers.....advice? (RacerXI)

I don't understand what you're asking. Looking at your compression, it looks like your engine is already screwed?
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Old Mar 28, 2003 | 03:59 PM
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Default Re: Compression numbers.....advice? (94TealGSR)

Would it hurt any more it to keep driving it until i decide what my next plan of attack is?
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Old Mar 28, 2003 | 04:17 PM
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Default Re: Compression numbers.....advice? (RacerXI)

You should be ok to drive on it for a bit. I drove on a spun rod bearing for 5 months, although it wore the crank journal to next to nothing.
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Old Mar 28, 2003 | 05:30 PM
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Default Re: Compression numbers.....advice? (RacerXI)

Don't drive it too long, take it off the road asap and do a rebuild.
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Old Mar 28, 2003 | 07:56 PM
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Default Re: Compression numbers.....advice? (ekb18c)

thanks
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Old Mar 28, 2003 | 09:28 PM
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Default Re: Compression numbers.....advice? (boosted hybrid)

You should be ok to drive on it for a bit. I drove on a spun rod bearing for 5 months, although it wore the crank journal to next to nothing.
Unlikely. Ive broke three motors due to rod bearing failure...they all go soo fast. Once you heard the *bang bang* (the knock knock sound) you better get the hell home and fast. The last engine that spun i was at high RPM when it happened and i bent one rod and broke another in 1/2. A friend with a b16a once he started to hear the knock...by the time he got home which was 5 miles away..the motor was distroyed.

liam
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Old Mar 28, 2003 | 09:29 PM
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Default Re: Compression numbers.....advice? (RacerXI)

160, 70, 160, 160
jrsc@8psi 3.8" blower pulley
dsm 450's
hondata
i/h/e...untuned.
Any words for the unwise so as I don't really fawk up my bottom end? thanks in advance. I'm thinking of going back with forged pistons/rods of the stock compression.
Your #2 is blown. Good chance its the ring lands. I wouldnt drive on it for very long as the broke piston can scar up the walls very bad which will force you to bore the cyl to fix the damage.

liam
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Old Mar 29, 2003 | 12:10 AM
  #9  
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Default Re: Compression numbers.....advice? (liam821)

160, 70, 160, 160
jrsc@8psi 3.8" blower pulley
dsm 450's
hondata
i/h/e...untuned.
Any words for the unwise so as I don't really fawk up my bottom end? thanks in advance. I'm thinking of going back with forged pistons/rods of the stock compression.

Your #2 is blown. Good chance its the ring lands. I wouldnt drive on it for very long as the broke piston can scar up the walls very bad which will force you to bore the cyl to fix the damage.

liam

Yup, that's why i had to bore mine walls .20 over!!
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Old Mar 29, 2003 | 12:11 AM
  #10  
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From: St.Paul, MN
Default Re: Compression numbers.....advice? (liam821)

160, 70, 160, 160
jrsc@8psi 3.8" blower pulley
dsm 450's
hondata
i/h/e...untuned.
Any words for the unwise so as I don't really fawk up my bottom end? thanks in advance. I'm thinking of going back with forged pistons/rods of the stock compression.

Your #2 is blown. Good chance its the ring lands. I wouldnt drive on it for very long as the broke piston can scar up the walls very bad which will force you to bore the cyl to fix the damage.

liam

Yup, that's why i had to bore mine walls .20 over and get new pistons!!
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