When it happens: It only happends when I switch gears at full throttle at high rpms. It doesn't matter which gears either, so say if I floored it in 2nd gear it would rev up perfectly all the way to 8k rpms. But when I switch to 3rd, the problem starts.
What happends: It's like a massive amounts of pops, like pop pop pop pop pop.... and it continues untill I let go of the throttle. The car itself kinda surges with the pops, ie not accelerating smoolthy and the rpms rise erratically too. If I were to let off the throttle, the popping stops, and if I were to floor it agin it'd be fine, till I switch gears that is.
Anyone know what can cause this?
I thought it might be the stock ignition, but on the dyno even at 20psi it didn't misfire or anything at all. So I don't think it's blowing out the spark since this does happen at 12psi too.
Also this happens at any boost level, 12, 16, & 20psi
Setup:
Built H22, pistons rods, sleeves. stock head, arp head studs, stock ignition, 2 step colder plugs
Drag manifold, custom ic pipes, blitz intercooler, sc61, hks ssq bov, tial 35mm,
Honda s200b, p28 ecu, 880cc injectors

 

bump for ya

 

What are you gapping your plugs at?

Try a smaller gap.

 

If the gap is OK and you are still experiencing this problem check your vacuum hose to your external wastegate. Make sure you got a good vac source and that nothing is loose I had same problem quite while ago and was fixed by changing out the plugs with correct gap. It then happened again recently at a track event, to my horror the vac tube came off the wastegate resting on the mani and got fried . Changed out vac tube, reconnected and I wsa back in business

 

I had the exact same symptoms for 2 different reasons on my turbo d-series. THOUGH, you might not have them if you've got a nice tight spark plug hold-down on your h22 (I think they came with them heh).

basically, after I boosted I noticed that my car missed up high in rpms from 3rd gear on (1st and 2nd went by too fast to notice). Turned out that my middle two msd plug wires were popping up off the plugs just enough to arc and cause the misfiring. I'd pop em back down and all would be good for a little and then they'd pop off again and it would start again. now when I say a little bit I mean a little bit popping off. got to the point that I'd pull over, pop them down, and get to the next light and they'd pop off again GRRRR.

got pissed, pulled my valve cover off, and made a "cough cough" custom spark plug wire hold down for my d-series hehe.

THIS is what I THOUGHT solved the problem. oh no my friend it didn't. All would be well for about 2k miles or so then I'd get the missing again. had to swap plugs. another 2k miles missing again, swap plugs. Finally, while swapping plugs one time I noticed black marks down 2 of them. Turned out it was electrical burns etching the porcelain on them. Apparently those two msd wires had gone bad from the original arcing when they were popping off and were now simply arcing and arcing on new plugs each time until they ate them enough to cause the arcing misfire problem again.

I simply got pissed, bought a used stock dizzy off ebay for $20 with cap, coil, rotor button, plugs...and swapped back to complete stock ignition and sold my msd setup in my signature and haven't had a single problem since.

EDIT: I forgot that I took some pics of the bad plugs if you need to look at them I can post it so you'll know what arced plugs look like hehe.

 

gap is 0.030" I bleieve.
The thing is, it doesn't miss at high rpm's, it does this after I switch gears around 6k rpms.

 

is it possible that I'm running too rich?

 

Like I said in your other thread... likely yes. What do your plugs look like?

 

 

how do they look to you guys?

 

opinions? anyone?

 

I just pulled my plugs and looked at them, they look exactly like that

 

mine look the same and does the same ******* thing

 

My car used to do that and it was the plug gapping. But in the pics your gapping looks fine.

 

is this under normal shifting?.. sounds like ur power shifting meaning not letting off the gas, when you shift. If so what you are proablying hearing is just the rev limiter???? thats exactly how it sounds to me..
there is no way you can blow out the spark when the TB is closed.. there is practicaly no air going through the motor.. only at WOT would it be possiable even then its not likely

 

no this is after I am in high rpm's at wot and I shift, once I'm in the next gear and at wot again it'll start to pop. And I'm not power shifting, I let off the throttle between shifts, so it's not the rev limiter either

 

What's your vacuum look like between shifts?

 

Every now and then I have a similar problem....As mentioned before, try closing the plug gap up a little....Try .028.........Good luck...

 

I had the same problem just recently it would pop like crazy. I got home and pulled the plugs and the number 3 cylinder had water on the plug. So I pulled the head and I mean I can't tell if anything is bad as far as sunken sleeve but there was coolant in cylinder #3. Im just going to replace the head gasket.

Also it used to back fire like a gunshot and it was becasue the plugs were too far popping off all time I might switch ignition setups.

 

Im pretty sure ur running lean. the white part is supposed to be a light brown.