B18C4-T

Tonight I hit it in first, and tapped the rev limiter, and second gear for fun and then I let my car idle for about 20 min or so. When I started it I saw a cloud of blue smoke come out the exhaust and thought maybe it was unburned fuel, then when I hit boost I looked in my rearview mirror and saw a LOT of blue smoke. My friend was behind me and said that my car was smoking . Does anyone have any idea what this might be? my setup is:
B18c4
BS manifold
Drag t3/t4
3" dp
RC 440s
Hondata s200

That is just a rough idea of what I have. Tony1 tuned it for me about 2 weeks ago and we found out my injectors are to small and I have hella boost creep, so he set my rev limit @ 7500rpm and my boost cut @ 15psi. I wasn't hitting 15psi until 8100rpm so I am @ about 10-12 psi right now. Any suggestions would be helpful, thanks.

MiraiZ

10-15psi on stock pistons?????

oh man...I htink you may have shattered your ring lands dude...

B18C4-T

That's what I'm guessing, it runs fine, idles fine, just smokes under boost. I'm sure if Tony1 sees this he'll put his .02 in
When I took it to him for tuning I had 2 degrees total timing retard and my a/f was 14.5, I had drived it like that for a year. He couldn't believe it was still running.

grndcont

check your compression, look at the spark plugs, and look at the piston tops, then wight back.

SCD16A6

wow 14.5 with boost,way to lean.

B18C4-T

yeah, Tony1 said all the hondata base maps are very lean. I was in Germany and didn't have anywhere to get it tuned.

B18C4-T

I did a compression check, car at operating temp, and distributor disconnected, and all plugs out.

Cyl #1-187
Cyl #2-175
Cyl #3-187
Cyl #4-195

My manual says 270 max and 135 min with a max variation of 28.

Does this sound ok? My vacuum guage still sits steady and moves like normal, and I didn't see any smoke when I started it.

Full-Race Geoff

for a stock motor, the compression test looks ok. One thing which is unlikely, but possible is that your oil return line is either kinked, melted or fialed somehow, check that, otherwise a leakdown test may help diagnose rings... ive seen shattered rings that functioned well...

B18C4-T

I put a brand new oil return line in about two months ago. It's steel braided with the high temp internals and an fittings on both ends. It is a perfect fit with no room to bend or kink. I'll have to find somewhere that can do a leak down test. If my engine is ok I'll by buying my full race mani in Sept, if it's not then it will be next spring. Thanks for looking Geoff

MiraiZ

does it smolke at all during idle??

boostCreep

take your filter off your turbo and play with your shaft no really...if it has alot of play oil is probably leaking into it and burning up

B18C4-T

No, it doesn't smoke at all during idle. I have noticed a little oil in the intercooler piping, maybe that's it? I just don't understand why it was yesterday and not before or since.

MiraiZ

that usually is a sign of blowby...is your breather valve routed back to the intake? If not, it may be your turbo seals

T3T495GSR

sorry i dont mean to sound dumb , but what is a b18C4?

B18C4-T

It's a B18c that comes in a 5 door civic in Germany. It comes with an LSD and supposedly has a stronger metal content than normal B series. Ask Tony1 or Kenny about it.

T3T495GSR

is it equivalant to a b18c1 or b18c5 or just a b18C?

B18C4-T

Neither, it's the block that JUN and Spoon get from Honda for their race engines. The head is a GSR head but the block enters a very grey area. Turbo magazine did an interveiw with the owner of Spoon Sports were the c4 was discussed, that's the only place I've ever heard it published about. Tony and Kenny said that my engine should have blown apart long ago with the program that was installed in my s200.

T3T495GSR

sounds cool, sorry you arent getting much help yet on this forumn

B18C4-T

It's ok, I'm going to have a leakdown test done to make sure everything is ok before I start driving it again. Everything else seems to check out ok, thanks for your help.