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Old 03-14-2011, 04:05 PM   #2476
T3RMIN4L
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Jake, as we discussed over the weekend, on 93 i run stock gap .028-.030 and on e85 .023.-.025 and always iridium.
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Old 03-14-2011, 05:07 PM   #2477
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i hear ya bro. i like to hear many opinions, not just the ones i wanna hear.
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Old 03-14-2011, 05:12 PM   #2478
juanmedina
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Quote:
Originally Posted by T3RMIN4L View Post
Jake, as we discussed over the weekend, on 93 i run stock gap .028-.030 and on e85 .023.-.025 and always iridium.
It seems that iridium plugs suck too many misfires .025 gap < I have ngk iridium . I will be switching back to stockers soon
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Old 03-14-2011, 06:25 PM   #2479
john 1badSTI
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I have always run ngk or denso iridium with no problem but I also have an xsengineering ignition booster.I just got a set of the brisk plugsto try just to see how they perform per Dom at mps.
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Old 03-14-2011, 07:03 PM   #2480
maxpowr
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the brisk are the same price as iridiums.

http://www.briskracing.com/home.php
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Old 03-14-2011, 07:15 PM   #2481
john 1badSTI
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I wouldn't say that, they are a little bit more than what I pay for iridiums.I use to be a manager for NAPA 15 years ago but the guys I worked with are still there and give me special pricing on whatever I need.
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Old 03-14-2011, 08:07 PM   #2482
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I love copper plugs! One step colder coppers with a .024 gap and you will hear me yelling Eeeewwwweeeeggggooo as I search for the next E85 station bc I just can't stop going wot... Coppers with E85 seem to treat me the best... I havnt tried those silvers though maybe I'll put them on deck for next round
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Old 03-14-2011, 08:36 PM   #2483
maxpowr
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TD what would you say is a good gap on ngk coppers (7) on 93pump? (well at least in my setup)
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Old 03-14-2011, 11:45 PM   #2484
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Jake I would aim for .025-.028 . You want the gap as open as your ignition system can support without problems. So if you don't have any misfires or anything at .028 leave them there because bigger gaps = more power!

Now for E85 with the 30r I would aim for .024, I seemed to have nothing but good luck with .024 , E85 and my 30r!
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Old 03-15-2011, 12:41 AM   #2485
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i think the boost a spark is a good idea seems to be the best value for the $ as well if you are having misfire problems. a lot of good info in here, keep it up.

My DW pump came in today.
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Old 03-17-2011, 01:29 AM   #2486
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Just bought the boost-a-spark. Will see if it helps my blowout issue. Running NGK iridiums gapped at .023-.024 and still getting bad blowout at 20 psi and above on the small 16G in fair weather, and 18+psi in cold weather. I'm thinking my coil packs are getting tired. (116k miles original....how long do they usually last?)

My plan is to regap to .030 with the boost-a-spark and see how that change in gap affects throttle response and cold starts.
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Old 03-17-2011, 06:55 AM   #2487
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Quote:
Originally Posted by xsnapshot View Post
Just bought the boost-a-spark. Will see if it helps my blowout issue. Running NGK iridiums gapped at .023-.024 and still getting bad blowout at 20 psi and above on the small 16G in fair weather, and 18+psi in cold weather. I'm thinking my coil packs are getting tired. (116k miles original....how long do they usually last?)

My plan is to regap to .030 with the boost-a-spark and see how that change in gap affects throttle response and cold starts.
coils definately get weak over time. but never the less, please keep us updated on your boost a spark install and results
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Old 03-17-2011, 01:11 PM   #2488
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how did you determine it was blowout?

I've really only heard of that on gt35 or bigger turbos on e85....

And im still unsure how you diagnose it...besides adding something like a boost a spark into the mix and it fixes the issue.

Have you tried coppper plugs instead of iridiums?
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Old 03-17-2011, 01:13 PM   #2489
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I thought that was interesting too. Sounds like bad coils to me. I run almost 600whp with no blowout issues on e85.

Did your WRX ever have a UTEC on it?
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Old 03-17-2011, 06:12 PM   #2490
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I first had blowout on E85 when i was gapped at .030 on the stock turbo, stock heat range NGK iridium plugs when i went above 19 psi or so. I regapped down to .026 and the problem went away.

Fast forward to small16G, and this fall I had spark blowout on 20+ psi. I gapped them down to .023-.024 and then it went away again.

During the winter, it started happing again, and I couldn't run more than about 18 psi before it would break up. (even tried new plugs) Now that the days are getting warmer, I'm back to being able to run 20 (just did it successfully!). However just to test, I tried 23 psi and it was breaking up again.

The reason I'm getting the boost a spark is so that I can open my gap back up to .030 (if possible) and still be able to run 20 psi in the dead of winter at -15F if wanted. Since I have the fortune of running both IWG and EWG with a hybrid boost control system, I'm going to just set my EWG spring pressure at about 19-20 psi (we'll see what it gives me) and call it good. At 116k miles, paired with a 4EAT slushbox, I'm ok with giving up a few psi in the midrange.

I just want something that light's everytime faithfully. I haven't tried copper plugs, but I don't see how it would help. It "should" take less energy to spark an iridium plug at gap .0xx than a copper at .0xx.

If my coils are going bad, well......that will suck. But I'll get some more and run a bigger gap, and enjoy the better cold starts it will offer with the Boost-a-spark.

EDIT: No utec here. It was bone stock when I got it, then I tuned it on opensource. Still stock coil packs, so dwell shouldn't have been messed with.

Last edited by xsnapshot; 03-17-2011 at 06:39 PM.
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Old 03-17-2011, 06:45 PM   #2491
Phatron
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that still doesnt answer the question....how do you KNOW its blowout?

how does one come to that conclusion? because u decreased the gap and it briefly went away?

based on the many cars i've tuned on e85 on larger turbos and more boost...i would say its not a gap problem.....

you may try coppers...but it seems like you have some other underlying issue.

whats your target AFR? what kind of timing are you running? maybe you're running too rich and too little timing

i almost think you should really try to find this problem before slapping on the boost a spark...it may just mask a gremlin that could come back to haunt you.
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Old 03-17-2011, 07:13 PM   #2492
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Originally Posted by Phatron View Post
that still doesnt answer the question....how do you KNOW its blowout?

how does one come to that conclusion? because u decreased the gap and it briefly went away?

based on the many cars i've tuned on e85 on larger turbos and more boost...i would say its not a gap problem.....

you may try coppers...but it seems like you have some other underlying issue.

whats your target AFR? what kind of timing are you running? maybe you're running too rich and too little timing

i almost think you should really try to find this problem before slapping on the boost a spark...it may just mask a gremlin that could come back to haunt you.
I'm confused as to what you think it could be other than spark blowout?? The mix is not lighting leading to sudden loss of power (brief quick pulses). And yes, if you gap it tighter, and the problem goes away, do that not indicate you have finally closed the gap tight enough to jump the spark and light the mix, thus no blowout? If you have an idea for what it could be please tell me.

I'm running between 11.8-12.0 WOT gas equiv AFR (depending on the exact % of ethanol in the tank at the time of reading). I started my 16G at 12* at peak torque up to 22 at redline, working my way up to 14* at peak torque up to about 25 at redline. It feels great. I don't know what else to tell you about the tune. I'm sure its not at optimal power, but I really don't need anymore power, and wouldn't feel comfortable with sending more through my old EJ205 or the 4EAT.

I've always ran NGK stock heat range iridiums, and they've always performed great. I doubt its the plugs fault. I've cleaned the factory grounds, and added a few more just for ****s and giggles.

I attribute it to weak coil packs. Heck maybe I should log voltage at WOT and make sure my alternator isn't doing something funky.

When i get the boost-a-spark I will be taking my plugs out to re-gap them and will inspect my coil packs. I'll post up the results.
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Old 03-17-2011, 07:30 PM   #2493
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well.....i guess im getting too technical....

Blowout to me is that you're running a huge turbo and flowing so much air that it is physically blowing out the spark.....

If there is an underlying problem in your ignition system (IE bad coil packs) then you arent getting "blowout".....you just arent getting the correct amperage to the plug.

Does that make sense?

Basically im saying your turbo is too small to have "blowout"....and if you are experiencing blowout, then its due to an underlying issue.....
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Old 03-17-2011, 07:56 PM   #2494
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hmm i thought multi-electrodes were bad for turbo cars but these seem pretty cool
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Old 03-18-2011, 12:34 AM   #2495
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hey i have a question, what are you guys using to store extra e85 in? these looked pretty nice: http://www.blitzusa.com/products/fue...nt/pfc6svg.htm but also no idea on laws concerning them, just plan to store in trunk for road trips to extend my range without switching back to pump for the trip and wondering if all the e85 was out of the system. plan to carry 15 gallons at the very least.

(if this isn't the right section to ask i can start a new thread somewhere, just seemed like the E85 army thread would be the place to discuss everything E85 related)

Last edited by wrxkyle; 03-18-2011 at 12:53 AM.
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Old 03-18-2011, 03:49 AM   #2496
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Quote:
Originally Posted by Phatron View Post
well.....i guess im getting too technical....

Blowout to me is that you're running a huge turbo and flowing so much air that it is physically blowing out the spark.....

If there is an underlying problem in your ignition system (IE bad coil packs) then you arent getting "blowout".....you just arent getting the correct amperage to the plug.

Does that make sense?

Basically im saying your turbo is too small to have "blowout"....and if you are experiencing blowout, then its due to an underlying issue.....
When Ron was tuning my car I randomly started getting hesitation and eventually misfire. It was just one bad coil pack.
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Old 03-18-2011, 03:59 AM   #2497
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Should I do TGV deletes?

I have an ATP 3076 turbo on the way and some FiveO 1200cc side feeds also on the way... I heard somewhere that E85 behaves better (around town, starting, and idling) with the TGV's left in, with those size injectors. I was wondering if I should go ahead and do the PITA deletes since I've already got this other stuff going in? Or would the cons outweigh the extra hp? My plan is to stay just under 400whp on stock internals.

Current mods:
KSTech 73mm intake (in the mail)
ATP 3076 (in the mail)
FiveO 1200cc sidefeeds (in the mail)
Stock TMIC
Stock Turbo Inlet
Ported stock exhaust manifold
Up-pipe
Invidia V2 Bellmouth DP
Greddy Evo II catback
Grimmspeed EBCS
Walbro 255
Stock 2.5L 2005 Motor with 76k miles
Original Clutch
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Old 03-18-2011, 06:55 AM   #2498
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if you don't have to do the deletes IMO not much reason to. I originally ran a 20g with out deletes and used the stock inlet and it drove great and made good power. now I am sure there is a small HP gain but really its probably less than 5 in real life. I am also sure there will be people that tell you it is so worth deleting them too and it will be like the difference between a TD04 and a 35r
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Old 03-18-2011, 07:08 AM   #2499
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Quote:
Originally Posted by wrxkyle View Post
hey i have a question, what are you guys using to store extra e85 in? these looked pretty nice: http://www.blitzusa.com/products/fue...nt/pfc6svg.htm but also no idea on laws concerning them, just plan to store in trunk for road trips to extend my range without switching back to pump for the trip and wondering if all the e85 was out of the system. plan to carry 15 gallons at the very least.

(if this isn't the right section to ask i can start a new thread somewhere, just seemed like the E85 army thread would be the place to discuss everything E85 related)
I have one of those cans here at home or at the shop. its not bad that I can remember just another gas can. i doubt you would need 15-18 gallons riding with you on a trip unless you are going to a track with no pump. here is a link that has a locator as well as an option to "map a route" so you can drive somewhere with e85 stations the whole way. http://www.afdc.energy.gov/afdc/locator/stations/
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Old 03-18-2011, 11:51 AM   #2500
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Did your WRX ever have a UTEC on it?
Dom, can you elaborate as to why this might be a problem? TIA
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