bad blow by

[hi comp]

ok im new to the forum and i am having a few problems wit my motor its a b18c2 it has 75000klms...

here is the list of mods..

>autronic ecu
>msd fireball ignition
>mugen headers
>a'pexi exhaust
>toda spec b cams
>toda cam gears
>spoon throttle body
>adjustible fuel reg
>injectors
>fuel pump

i think thats it..

any way the motor has bad blow by and only makes 120.5kwatw
not good. on the dyno sheet its pretty flat power curve.

i have had some runs wit modded vx ss and some done up gtst etc and havent been beaten and thats wit a slipping clutch. im worried my motor isnt healty anyone got ideas??

what power should i make? what causes blow by? piston rings? would that cause a lack of power?

sorry if im abit vaugue but im a lil confused. new to hondas have come over from a wrx sti.

[Perry]

can u post up the graph?

[hi comp]

will give it a go! the guy that tuned it wasnt very experianced with hondas. he does more skylines etc etc. i will scan it to the computer then try put it in here!

[hi comp]

yeah i figured that saving up for rebuild hopefully by toda trying to get a price but they havnt replied

[hi comp]

here it is

hmmmm could have been bigger! how do i resize it?

[Slow96GSR]

[BlitZ]

how bad it bad? how much oil u loosing?
just make sure u run a catch can too.....

[Hipowerracing]

hi bro..

looking at your graph..
flat spot 6500~7250...
at 5000~5750 flat spot.
am i right???

no offence your cars tune is pretty average.. still Rich 12.8 at most time..

power drops off after 7250... "you can get more power at top end".
which computer are you using?

also use a compression meter to tell you which piston has dropped compression. usually cracked ring glens/ piston rings will definately have a drop in compression...

however flat spots are not from your mechanical set up but tunes do a big part of it..

sorry not trying to be a car "guru" just giving my opinion (helping a guy out).

Warmest regards

[hi comp]

i appreciate your coments so there is no offence taken mate.

im using an autronic computer the guy that tuned it hads no idea about hondas. i used him cause the car had some bad problems and he was the closest guy i could get to do it.

yeah the car is pretty flat to drive and has this massive kick when vtec hits. . not smooth at all.

what air/fuel ratio is safe? how lean can u go?

also where is a good tuner in sydney? i just want tot get the most from my car

[hi comp]

how bad it bad? how much oil u loosing?
just make sure u run a catch can too.....

its pretty bad! i took the oil cap off and f**k me i was shocked!

the car goes from the full mark on the dipstick to the refill mark or close to in 6000klms.

i have an oilcatch can but no oil ever gets in there i supose thats one good thing

[BlitZ]

its pretty bad! i took the oil cap off and f**k me i was shocked!

the car goes from the full mark on the dipstick to the refill mark or close to in 6000klms.

i have an oilcatch can but no oil ever gets in there i supose thats one good thing

if its hooked to your PCV is should pull out all the crank case pressure/blow by

[grumpy rooster]

Are you sure you don't have some of the oil breather hoses connected the wrong way around therefore pressurising the sump and pumping oil out of the engine? Is there oil all over the engine bay?

It just sounds weird to me that you have a catch can yet there is nothing in it.