d-series compression
#1
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d-series compression
just ran a compression test on my car and this is what i got:
200 200 210 200
now i'm glad they're all fairly close, but i was wondering if these number are too high (carbon buildup) or too low for a d16z6. hopefully this will handle the boost thats coming in the mail well
200 200 210 200
now i'm glad they're all fairly close, but i was wondering if these number are too high (carbon buildup) or too low for a d16z6. hopefully this will handle the boost thats coming in the mail well
#3
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Re: d-series compression (xbird)
car was already warm. pulled fuse for fuel injection out. took out all spark plugs. screw tube into spark plug well, attach to gauge (i have the quick release one). with clutch and gas held down all the way, crank engine 5 times. i was doing like 8 cranks cuz i read from somewhere else to do it that many times, but then some places said 5, and my friend who was watching the gauge always stopped me at 5-6 cranks anyway cuz the needle already settled. repeat same for all other cylinders.
the ones that got 200 for me were actually exactly on 200 on my gauge, and all were definitely over 180 and under 210
this on a d16z6 with 80,xxx miles and constant maintanence. oil changes every 1000 to 2000 miles
the ones that got 200 for me were actually exactly on 200 on my gauge, and all were definitely over 180 and under 210
this on a d16z6 with 80,xxx miles and constant maintanence. oil changes every 1000 to 2000 miles
#5
Honda-Tech Member
Re: d-series compression (Pengo)
Did a test on a car I was gonna buy and here is approximtely what I got:
120 130 145 140
This was a d16z6, and needless to say I didn't buy it.
120 130 145 140
This was a d16z6, and needless to say I didn't buy it.
#7
Re: d-series compression
i have a d15b7 3xx,xxx miles, 92 civic lx 4dr, 195, 200, 200, 192 dry comp test, injectors pulled as well as fuse and pumpo kill switch, all plugs pulled, WOP 3-5 cranks....
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#9
Re: d-series compression
thats a very good engine you should be glad as for a turbo look up specs for the compresion ratio, a compression test doesnt tell you any thing about compression ratio, it's somewhere around 9:1 d series dont go past 10:1, good for a little boost
#14
Honda-Tech Member
Re: d-series compression
OP 200-225 is normal for a z6. 185 and below means the motor is getting tired and will possibly need rings soon.
#15
Honda-Tech Member
Re: d-series compression
you are on the verge of having catistrophic failure or just having your motor die on you in the near future. it take a MINIMUM of 100 PSI to create combustion and burn fuel. below that you will develop a dead cylinder, have predetination and ruin pistons. being 7-14 points above that is not good.
#17
Re: d-series compression
just ran a compression test on my car and this is what i got:
200 200 210 200
now i'm glad they're all fairly close, but i was wondering if these number are too high (carbon buildup) or too low for a d16z6. hopefully this will handle the boost thats coming in the mail well
200 200 210 200
now i'm glad they're all fairly close, but i was wondering if these number are too high (carbon buildup) or too low for a d16z6. hopefully this will handle the boost thats coming in the mail well
That's a pretty healthy D!
Last edited by scrambled_EG; 10-30-2009 at 08:44 AM.
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#19
Honda-Tech Member
Re: d-series compression
if the motor is the healthy then there is no point in rebuilding it. If you want to build the motor I would say to either sell the block that you have and buy another one to build it (since yours is so healthy) or sell the pistons/rods after u take it out.
But since its so healthy you could boost it and make 200WHP with no problems and not worry about it.
But since its so healthy you could boost it and make 200WHP with no problems and not worry about it.
#21
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#22
Re: d-series compression
#25
Honda-Tech Member
Re: d-series compression
no it does not. non-vtec motors are more suited to lower end power. That is the whole point of VTEC. To have regular cams for low-mid range power and VTEC cams for high end power. VTEC also helps you spool turbos because the cams are more aggressive when VTEC activates.