Compression Results......Thumbs up to Turbo???
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Compression Results......Thumbs up to Turbo???
I have a b18b with 100,000 miles on it.
The compression results were:
#1. 195, #2. 185, #3. 180, #4. 200
Do you think that Im good to go for a daily driven turbo setup. Im plannin on bossting 6-9 pounds. Anyone have experience turboing their car at 100,000 miles or more?
Modified by DownBoyDown at 6:27 AM 11/25/2003
The compression results were:
#1. 195, #2. 185, #3. 180, #4. 200
Do you think that Im good to go for a daily driven turbo setup. Im plannin on bossting 6-9 pounds. Anyone have experience turboing their car at 100,000 miles or more?
Modified by DownBoyDown at 6:27 AM 11/25/2003
#3
Re: Compression Results......Thumbs up to Turbo??? (b18bturbo)
when do you know you got bad compression, whats the difference between the numbers before you should pull the head and do some work?
#4
Re: Compression Results......Thumbs up to Turbo??? (DownBoyDown)
hmmm 2 and 3 are a little low but that would be expected on a 100,000 mile motor........ i think that running 6-9 psi would be fine.. there are people on here that have done it.
i have about 40,000 on mine and read 210 across all cylinders....
i have about 40,000 on mine and read 210 across all cylinders....
#5
Re: Compression Results......Thumbs up to Turbo??? (tgh99si)
if u notice huge differences between cylinders then something is wrong but if they are all fairly close then things should be fine...i say if u got much lower than u are now like maybe 170-160 then begin to think about doing a rebuild just to be on the safe side....
i am no expert when it comes to comrpession stuff though. but if u start dipping lower then u are then u might as well rebuild since u'll be losing power with ur cylinders not being able to hold the compression they are capable of.
i am no expert when it comes to comrpession stuff though. but if u start dipping lower then u are then u might as well rebuild since u'll be losing power with ur cylinders not being able to hold the compression they are capable of.
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well check with an FSM or Chiltons or some other form of mechanical guide. I know in my 240, you had a minimum compression and then a maximum difference. Sure your compression could be high like the numbers you have, but that number 3 cylinder could be trying to tell you something. So find out what is the maxiumum difference you can have on a B18B. I dont claim to be a compression expert either though...still worth a look see
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Thanks for the info guys!
Haynes says:
"Standard b18b1.......199psi"
"Minimum..................140psi"
"Maximum variation between cylinders....28psi"
I thought that my compression seemed pretty good, but I was just wondering what causes the variation between cylinders.
Haynes says:
"Standard b18b1.......199psi"
"Minimum..................140psi"
"Maximum variation between cylinders....28psi"
I thought that my compression seemed pretty good, but I was just wondering what causes the variation between cylinders.
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