<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by adseguy &raquo;</TD></TR><TR><TD CLASS="quote">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.</TD></TR></TABLE>
yea i've been thinking the same thing all along. That if its not the dumptube then he is having problems somewhere in the ignition. We replaced a bunch of his ingition components, but i guess we got some more to do. Like I said we did try running without the dumptube, but the boost was spiking to 15psi...i think he didn't have the banjo fitting tightened enough for the vac line so who knows if thats whats causing the loss in power or not. I bet that he would definintly pick up some power switching to a different dump setup though regardless of whether or not its his huge power losing problem.

Also i think if his dad hadn't gapped his plugs wider before the dyno that he would have made a little more than 190whp. Originally before we gapped the plugs lower his car wouldn't even rev past 4 or 5k rpms.

 

so have you checked the timing belt yet?

 

I don't think he has checked it yet. I may have to help him do it next time he comes over to my house.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_MShue &raquo;</TD></TR><TR><TD CLASS="quote">
Also i think if his dad hadn't gapped his plugs wider before the dyno that he would have made a little more than 190whp. Originally before we gapped the plugs lower his car wouldn't even rev past 4 or 5k rpms. </TD></TR></TABLE>


from what you've been saying.... i've concluded that it's the COIL. I'm telling you man, it's logical and it's also my gut feeling. I dont proclaim nor am i anywhere near being a tuning expert, but i feel my experience (8yrs) from troubleshooting my own problems has made me a wiser honda nut =P If i'm wrong then I'm wrong. at least he'll have a new coil and one less thing to troubleshoot. good luck

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boonacka &raquo;</TD></TR><TR><TD CLASS="quote">from what you've been saying.... i've concluded that it's the COIL. I'm telling you man, it's logical and it's also my gut feeling. I dont proclaim nor am i anywhere near being a tuning expert, but i feel my experience (8yrs) from troubleshooting my own problems has made me a wiser honda nut =P If i'm wrong then I'm wrong. at least he'll have a new coil and one less thing to troubleshoot. good luck</TD></TR></TABLE>
believe me i think your guess is definintly a good one. Its just up to him to try and replace it. Hopefully he will check back into this thread soon.

btw here is one of his recent datalogs. Right around 12.0:1 except for one little spot where it gets up around 12.3:1. I've since richened that spot up more, but I couldn't get any clean runs without random spikes in the data.

 

Yea, Matt we can get together sometime and go pick up a coil I guess. Is there anyway to test the coil or anything?We can install it and we can check the timing belt, I've never done that before. Uhhh the only time this week that I'm free is on Wednesday.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by meltman1234 &raquo;</TD></TR><TR><TD CLASS="quote">Yea, Matt we can get together sometime and go pick up a coil I guess. Is there anyway to test the coil or anything?We can install it and we can check the timing belt, I've never done that before. Uhhh the only time this week that I'm free is on Wednesday.</TD></TR></TABLE>
yea we can probably do that if you want. Or even today if you want. I guess you probably have work though.

 

Of course.....ugh

 

There are no lean spikes in the LM-1 data logs. Do not use smoothing if you are trying to see lean spike.

I think it is not breathing well.

 

I actually can't do it tommorow because of a friends birthday and I'm going to wait for the wastegate to get here anyways.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Flr Power &raquo;</TD></TR><TR><TD CLASS="quote">There are no lean spikes in the LM-1 data logs. Do not use smoothing if you are trying to see lean spike.

I think it is not breathing well.</TD></TR></TABLE>
I wasn't trying to show the lean spikes. I was showing that his fuel curve is alright. This run actually only had 1 or 2 small little spikes that dissapeared with smoothing, but most of the other runs had them all over the place.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by meltman1234 &raquo;</TD></TR><TR><TD CLASS="quote">I actually can't do it tommorow because of a friends birthday and I'm going to wait for the wastegate to get here anyways.</TD></TR></TABLE>
alright just let me know. I would just keep that wastegate if i was you because it seems to work fine. I think that you just didn't tighten the banjo bolt down and thats why it spiked. Maybe you could just find another diaphram if it has a little tear.

 

I cant believe this thread has gone 4 pages!

 

coil. bad coil. i hope u solve this problem. i hate when ur stumped and u cant figure it out!!!!

 

Well it started off opening at 8.5psi when I first had the car done, but then gradually it started going up to 10psi, and I didn't mess with it. It's a bad wastegate and a Tial is a good investment anyways.

 

Compression test results......

#1 Cylinder - 195
#2 Cylinder - 180
#3 Cylinder 175
#4 Cylinder - 180

 

Sorry i didn't see this post earlier. My H22A was doing the same thing a while ago. Popped, ****, Farted at random. Just couldn't figure it out. Add timing, subtract timing - same ****. Add fuel subtract fuel - same ****. Just misfired at random in boost. I eventually blew a piston. Pulled it down, changed all four pistons and went back up. Didn't even pull the block outta the car. Didn't misfire since. All I did was change from 10:1 to 9:1 compression. Same exact parts used otherwise except for new headgasket and seals etc. Same tune as well. Car has been fine on 10psi eversince. I am still puzzled. Can't figure out what was wrong.

 

weird

 

Yes. Really really weird. The only logical thing I came up with was that one or more cylinders were creating hot spots and causing preignition which eventually ruin the motor. I had a hole in #4 piston and pieces missing from around the top perimeter of the other three pistons (broken clean off). It was a used built motor I had purchased - built by Benson performance. JE Pistons, crower rods and iron sleeves. I believe the pistons were damage before I installed it in the car and they progressively deteriorated. When I pulled the head off there was quite a bit of piston material fused to cumbustion chamber and the face of the valves which was later removed when cleaning up the head. I could never get a good tune with the motor but after rebuilding it all was well - even with previous tunes (Uberdata). Your problems sounds so much like mine. Before this engine failed I had tried new plugs, coil, rotor with no luck. Keep us posted. I wish you luck.

 

bump for you, I'll be boosted with a stock JDM h22a at about 10psi with uber too, hopefully this doesn't happen to me*knock on wood*

 

I just put the new coil in about an hour ago but didn't have a chance to drive it yet. But I'm nor driving it until my new wastegate comes in anyways, because this wastegate that's on now is spiking up to 11psi. It will hopefully be here Friday so I'll keep this updated.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Quade &raquo;</TD></TR><TR><TD CLASS="quote">Yes. Really really weird. The only logical thing I came up with was that one or more cylinders were creating hot spots and causing preignition which eventually ruin the motor. I had a hole in #4 piston and pieces missing from around the top perimeter of the other three pistons (broken clean off). It was a used built motor I had purchased - built by Benson performance. JE Pistons, crower rods and iron sleeves. I believe the pistons were damage before I installed it in the car and they progressively deteriorated. When I pulled the head off there was quite a bit of piston material fused to cumbustion chamber and the face of the valves which was later removed when cleaning up the head. I could never get a good tune with the motor but after rebuilding it all was well - even with previous tunes (Uberdata). Your problems sounds so much like mine. Before this engine failed I had tried new plugs, coil, rotor with no luck. Keep us posted. I wish you luck. </TD></TR></TABLE>
this is a bone stock h22 so we can rule out any problems with the build of the engine. I'm really hoping he doesn't have a problem like yours.

 

Did you check your timing belt just to make sure it hasn't jumped a tooth? Hope that coil does it for you

 

I hope so too. Just giving you my 2 cents worth and throwing out ideas. It doesn't necessarily have to be a damage engine that's causing the preignition. It could very well be carbon deposits in the combustion area. Try treating the engine. I heard some guys here saying seafoam is good stuff. If not there must be something else on the market to treat the engine. Just another idea.


Modified by Quade at 1:36 PM 6/1/2005

 

what year is the motor? it very well might need some good ole TLC just like above mentioned. I also heard seafoam works well and run some BG44k in your tank (fuel system cleaner)( the good ish)(expensive too...) it will only be beneficial for your motor anyway. good luck.

 

Alright we need to check the timing belt next time I come over Matt. I have work Thursday, Friday, and Saturday and I have ******* SAT's Saturday morning but we could probably do it Saturday afternoon or Sunday.