try to go down to 17-18 degrees timing and see what it does

 

I've tried it. The car only felt slower.

 

Bump

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_MShue &raquo;</TD></TR><TR><TD CLASS="quote">I've tried it. The car only felt slower. </TD></TR></TABLE>


butt dyno=not accurate....get it on a real dyno and you will know if it is slower

 

trust me if that was the problem we would have been able to tell. The car isn't making **** for power. I think it should be making a 50whp more at least. I would have felt that.

 

i took my car out and the studer i was talking about earlier is around at 4500, which is where vtec is set to engauge, so i'd just throw my map in, fix the timing for vtec ingaugement, and if you still have issues then its probaby base timing, or something else

 

guys the car seems to be misfiring. When i was datalogging he had all kinds of little millisecond lean spikes in the afr curve which means there was a missed ignition even. Sounds like something is up with his ignition system.

 

what are the plugs gapped at?

 

when i checked them he had them gapped at .035. I gapped them down around .026-.028 and it felt a tiny big better.

 

Replace your coil.. or get an external coil setup. use colder plugs.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boonacka &raquo;</TD></TR><TR><TD CLASS="quote">Replace your coil.. or get an external coil setup. use colder plugs. </TD></TR></TABLE>
we are using 2 step colder plugs. You think his coil is causing the misfire? It seems like we've replaced most everything else with the ignition

 

Have you changed the coil? Are you pulling the plugs at torque peak and giving them a look? Have you tried disabling VTEC altogether and see if it'll make a clean pass w/o it?

Just some random troubleshooting ideas..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VTC_CiViC &raquo;</TD></TR><TR><TD CLASS="quote">Have you changed the coil? Are you pulling the plugs at torque peak and giving them a look? Have you tried disabling VTEC altogether and see if it'll make a clean pass w/o it?

Just some random troubleshooting ideas..</TD></TR></TABLE>
nope haven't done any of this stuff. I've tried running way less timing and a couple degrees more timing so i don't think its a problem of running too much or too little timing. Definintly think its something with the ignition system. I never thought to disable vtec, but it feels weak even before vtec crossover and his turbo spools very fast so it should have some decent power down low.

One thing thats strange is that we tried flipping his wastegate around so it wasn't dumping back into the downpipe. We took it out for a run and boost was spiking to 15psi(i think he forgot to tighten down the banjo bolt for the vac line.) so we brought it back in and flipped it back around. When flipping it back around he dropped one of the bolts for the dumptube and lost it so there was now a huge leak between the wastegate and the dumptuble. On his drive home he called me and said that the car all of a sudden felt so much faster and this time the boost wasn't spiking. He also said once when he tried to get on it that it cut out on him...kinda sounds like he was leaning out just like it cut out when spiking to 15psi. I'm guessing maybe the dumptube had something to do with it and he gained a bunch of power and was leaning out because of that. I'll have to ask him if its still feeling the same way with that leak there.

 

I ordered a Tial last night so I can stop the spiking and I noticed the diaphragm has slight tearing on it so I went ahead and ordered a new one with a .65bar spring (9.43psi). So that should fix my boost creep problem. My dad has a compression checker at his work so I'm going to test it just to be safe.

Also I haven't driven my car since Friday so I don't know how it's performing now.

 

are you sure it wasn't spiking when it felt faster?

 

Well technically it spiked the whole time to 11psi, up from 10. But I didn't see it spike up to 15 again. When it felt real quick it was at 11.

 

Yea i don't think that 1 more psi would make it feel that much quicker and i doubt it would cause you to lean out enough that it would cut out like you said.

 

When it cut out on me the first time, I didn't see if it spiked or not. But I'm guessing it did. Maybe it leaned out on the map or something, I don't know, if it keeps making more power, I'll bring it to your house soon to check the afr's.

 

I didn't see that the problem has been fixed. I have seen in the past with two different H22's that there is a lose is power after Vtec hits. We tried everything and finally found the problem to be in the timing belt. Both cars had jump time. One even did it while on the dyno. Made two good pulls then the power went down from there. I would make sure the timing belt and the cams are lined up. Just a sug. Later.

 

[QUOTE=VtecKiDD]I didn't see that the problem has been fixed. I have seen in the past with two different H22's that there is a lose is power after Vtec hits. We tried everything and finally found the problem to be in the timing belt. Both cars had jump time. One even did it while on the dyno. Made two good pulls then the power went down from there. I would make sure the timing belt and the cams are lined up. Just a sug. Later.[/QUOTE
this one seems to not have any power even before vtec. . I don't think he has ever touched the timing belt, but i guess we could check that out.

 

Does the motor rev all the way to redline easily? or does it hit some sort of misfire up top? It may definately be his cam timing is off. But i definately suggest the ignition coil swap.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boonacka &raquo;</TD></TR><TR><TD CLASS="quote">Does the motor rev all the way to redline easily? or does it hit some sort of misfire up top? It may definately be his cam timing is off. But i definately suggest the ignition coil swap.</TD></TR></TABLE>
at first it wouldn't rev all the way out before we gapped the plugs. After gapping them it will rev all the way out, but it just feels like something is holding it back.

 

clogged cat? just a suggestion. is it running really rich up top? just check all those things we suggested previously ( cam timing, coil, exhaust, too much oil, knock, etc.)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boonacka &raquo;</TD></TR><TR><TD CLASS="quote">clogged cat? just a suggestion. is it running really rich up top? just check all those things we suggested previously ( cam timing, coil, exhaust, too much oil, knock, etc.) </TD></TR></TABLE>
I'm not sure if he is running a cat or not. I'll have to ask him. Also it wasn't really running rich up top. The only abnormal stuff with the fuel are the random lean spikes which are obviously misfires.

 

Yes that dumptube placement isn't the best, but probably not the reason for the erratic behavior on the graph. If you want to test it, just take off the dump tube and drive like that for a run and see if it's different. The timing doens't look too bad, I mean yeah it's a classic "Uberdata/conservative/I'll just tune by pressing some numbers" (lol), but it's not bad. Not 180 HP at 10PSI bad. I say it's actually the physical ignition itself breaking up or something. . This is a stumper for me. Maybe MASE or Jeff Evans with almighty knowledge could solve this in a few seconds.