Anyone compression tested their B18C2/VTi-R's?

[Super-DA9]

Chucked the compression tester on my '95 VTi-R (146,000kms) the other day and I was pretty pleased with the results as they were quite consistent.

Cyl 1: 200psi
Cyl 2: 197psi
Cyl 3: 195psi
Cyl 4: 202psi

from what I read normal compression for the B18C2 is between 180 and 220? so I guess this is pretty decent.

I'm just curious to see if anyone else has tested theirs? post up your results! :)

[tinkerbell]

sweet readings mate, congrats on a healthy engine :)

[Super-DA9]

thanks buddy!

[Super-DA9]

anyone else done their B18C2's? maybe this should be moved to the technical forum or something..

[dc2screama]

Cyl 1: 195
Cyl 2: 205
Cyl 3: 197
Cyl 4: 205

[Super-DA9]

pretty similar results hey. what kind of oil do you use if you don't mind me asking?

[dc2screama]

I used to use oem oil and it burnt quick. Have been using magnatec for 6 months, and personally reckon it's better then oem and doesn't burn as quick. Good stuff, what do you use?

[Super-DA9]

Nulon 15W-50 fully synthetic.

OEM oil is just Caltex haha, it's even got the star on the cap. and 10W-30 is in most cases much too thin for a car that revs to 8000RPM+ from the mid 90's.

good numbers though man. it seems as though our engines are quite healthy by the looks of it :)

[Temp3st]

Hey guys, looking to buy a motor from a member here and he says the motor has 180 compression across all 4 cylinders, is this pretty healthy? I asked Dad and he says it is but I thought I might check this out before I make any more decisions. Cheers!

[Super-DA9]

well from reading some of the U.S. forums and a post or two from here it seems 180-220 is healthy for B18C2/1.

the helms manual states "must be no higher than 270PSI and no less than 135PSI"

270 would not be stock compression. pretty sure stock compression is about 220 on the B18C2 and about 250 on B18C7. I think helms is just stating that it should not be higher than this on the stock engine. (assuming 270 is the max the stock block and pistons can handle maybe?)

it'd be good to get some more input from some of the admins or tech experts on our compression results and testing :)

[Temp3st]

Yeah cause I dont wanna buy a motor that has 180 across all cylinders if thats a bad thing, but I mean if its not then I'm super keen cause I'm getting a good deal haha. The fact that it says no higher then 270 and no less than 135 just shows to me that 180 is a little less than halfway in between which seems reasonable

[Super-DA9]

well 270 sounds INSANE on a stock motor lol so think of it this way, if the stock comp for B18C2 is 220 as I think it is, look at it as where it is between 135 and 220.

[_bORdO_]

http://www.team-integra.net/forum/19-projects-diy-article-talk/99168-compression-test-specs.html

where b18c1 = AU b18c2
& b18c5 = AU b18c7

gonna get a comp test done soon, will report back with the results

[dc2r-0636]

B18c7 here with 103k's ( if you wana keep this strictly b18c2 let me know ill delete this)

Cyl 1- 255
Cyl 2- 246
Cyl 3- 249
Cyl 4- 240

[Super-DA9]

http://www.team-integra.net/forum/19-projects-diy-article-talk/99168-compression-test-specs.html

where b18c1 = AU b18c2
& b18c5 = AU b18c7

gonna get a comp test done soon, will report back with the results

It's wrong that they say nominal. it can't be nominal for B18C1 and B18C5 to have 270. the C5 is meant to have more compression than the C2. but the max/min/variations are correct.

[jdm18c]

what is good comp for a b16a??

[Temp3st]

Between 190 and 240

[mocchi]

well from reading some of the U.S. forums and a post or two from here it seems 180-220 is healthy for B18C2/1.

the helms manual states "must be no higher than 270PSI and no less than 135PSI"

270 would not be stock compression. pretty sure stock compression is about 220 on the B18C2 and about 250 on B18C7. I think helms is just stating that it should not be higher than this on the stock engine. (assuming 270 is the max the stock block and pistons can handle maybe?)

it'd be good to get some more input from some of the admins or tech experts on our compression results and testing :)

most likely if it's higher than 270, it has arrived in ping city.

[Super-DA9]

most likely if it's higher than 270, it has arrived in ping city.


hahaha this lol

[Super-DA9]

does anyone know what B16B pistons are like in B18C2? got a question about it in my build thread but may as well ask here too.

[mocchi]

http://www.ff-squad.com/tech/temp/pistons.htm

[infurNOS]

cyl 1 - 220
cyl 2 - 220
cyl 3 - 215
cyl 4 - 220

[Super-DA9]

cyl 1 - 220
cyl 2 - 220
cyl 3 - 215
cyl 4 - 220

wow, nice readings!

[Super-DA9]

http://www.ff-squad.com/tech/temp/pistons.htm

yeah I had a read of that already. thanks though! mainly wanting to know if anyone with first hand experience on this mod could give me some tips and whether it's worth it/works well etc. and what rods I should use. hopefully stock is ok!

[Super-DA9]

cyl 1 - 220
cyl 2 - 220
cyl 3 - 215
cyl 4 - 220

also is this a C2? and have you ever had a rebuild or anything?

[_bORdO_]

It's wrong that they say nominal. it can't be nominal for B18C1 and B18C5 to have 270. the C5 is meant to have more compression than the C2. but the max/min/variations are correct.

^^ my thoughts

not sure why i posted it without doing more research... >_>

[duzy]

Any mech can do this? Mite get mine checked out

[infurNOS]

also is this a C2? and have you ever had a rebuild or anything?

yes c2 put into my EG. No rebuild, and with 140 xxx km on it

[Super-DA9]

yes c2 put into my EG. No rebuild, and with 140 xxx km on it

fuaaarken nice bro

[Super-DA9]

Any mech can do this? Mite get mine checked out

can DIY it for $35

[dekhere]

My mate did mine today was pretty pleased
B18c:
cylinder 1: 250
cylinder 2: 250
cylinder 3: 250
cylinder 4: 240

[Super-DA9]

My mate did mine today was pretty pleased
B18c:
cylinder 1: 250
cylinder 2: 250
cylinder 3: 250
cylinder 4: 240

assuming this is a type R engine those are some very health numbers my friend!

anyone else got a B18C2 w/ numbers?

[mnc]

I would reccomend doing a Leakdown test as this is a lot more accurate to how healthy your engine is.

The leakdown test will tell you if your rings are leaking or head is leaking via valves etc etc.

[mnc]

Different motors have different compression

for e.g. 150-160 on a lower compression motor could be healthy as **** where as for a b18c that would be shit and showing huge signs of wear and tear.

[Super-DA9]

yeah that is correct. every different engine is meant to run a different compression as different engines have different compression ratios.

in response to leakdown tests, it is a good idea for further investigation if you're getting low compression numbers, but you need a compressor, leakdown tester (online order) and a fitting to link the hose to the spark plug holes.

or you can pay a shop to do it. however, I don't know about you guys but personally I don't trust any shops here in canberra for shit. always do a shit job or give my car back damaged or both. also there are HEAPS of dodgy mechanics (in canberra at least) that will tell you false things to try make money off you.

if it ever comes to a point where I need a leakdown, I think I will try source the compressor, tester etc. myself. but right now I don't think it's necessary.

[Snoopy S]

B18C7 104,000KM
Cyl 1: 250psi
Cyl 2: 250psi
Cyl 3: 250psi
Cyl 4: 250 psi

[Super-DA9]

well I did make the thread to see what numbers people's B18C2's were making, as the title states.. lol

but whatever. nice figures man, must run like brand new.

[Evok]

Either i have bad luck or i thrash my engine too much

I did a compression test today on my c2 with 205km on the clock
All 4 cyclinders are close but its really low

170-175 PSI using snap on tool..
Did i not warm car enough or something? Was on for 10 minutes, drove around the block quickly.

p.s 5 cranks

[Super-DA9]

Either i have bad luck or i thrash my engine too much

I did a compression test today on my c2 with 205km on the clock
All 4 cyclinders are close but its really low

170-175 PSI using snap on tool..
Did i not warm car enough or something? Was on for 10 minutes, drove around the block quickly.

p.s 5 cranks

crank each one until the needle stops moving, then you've built up full compression.