spark blow out!!! - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 22 Old 04-12-2011, 10:25 AM Thread Starter
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spark blow out!!!

I think I may have alittle spark blow out sometimes and was tring to figure out what I should use to fix the problem. The car is all stock except a on 3 turbo kit with 10psi of boost. Can I just use a msd blaster coil or something else? Any suggestions? Also its got ngk plugs. My other option would be is my 255 pump not enough and runs out of fuel sometimes


Last edited by sprintstang; 04-12-2011 at 10:35 AM.
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post #2 of 22 Old 04-12-2011, 11:24 AM
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The pump is an easy find; whats your AFR and fuel pressure during this break up? What are your spark plugs gapped at?


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post #3 of 22 Old 04-12-2011, 12:14 PM
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What gap?
I would skip that coil.
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post #4 of 22 Old 04-12-2011, 01:45 PM
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Your car is def not out of fuel with a 255 considering you have a tune and the right injectors. A blaster coil is more than sufficient to meet the needs of a stock boosted fox. Check plug gap, timing, and afrs upon breaking up.

How many miles are on your heads? I'd like to bet bad valve springs could be the culprit.
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post #5 of 22 Old 04-12-2011, 03:03 PM
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I would say smaller gap and an ignition box.


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post #6 of 22 Old 04-12-2011, 03:44 PM Thread Starter
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Im going to pull the plugs and check the gap and im ordering a good wideband gauge so I can see what the a/r is. Its got 42# injectors and the whole motor has 44000 miles.

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Originally Posted by 19935.slow View Post
Your car is def not out of fuel with a 255 considering you have a tune and the right injectors. A blaster coil is more than sufficient to meet the needs of a stock boosted fox. Check plug gap, timing, and afrs upon breaking up.

How many miles are on your heads? I'd like to bet bad valve springs could be the culprit.
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post #7 of 22 Old 04-12-2011, 04:59 PM
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You should be around 0.030 to 0.035

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post #8 of 22 Old 04-12-2011, 06:20 PM
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What heat range plugs are these? That will also make a difference.
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post #9 of 22 Old 04-12-2011, 08:54 PM Thread Starter
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The guy that tuned it said gap at .028

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You should be around 0.030 to 0.035
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post #10 of 22 Old 04-12-2011, 09:12 PM
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.028 should be fine. Have you pulled all the plugs to look at them? If not, that should be the first step.

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post #11 of 22 Old 04-13-2011, 08:17 AM
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+1 with .028 for a turbo. What heat range are you running?
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post #12 of 22 Old 04-13-2011, 10:54 AM
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I would say smaller gap and an ignition box.
That set up isn't even close to ever needing an ignition box. O.p. is on the right track.
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post #13 of 22 Old 04-13-2011, 03:51 PM
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0.028 is reasonable.
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post #14 of 22 Old 04-14-2011, 01:30 AM
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That set up isn't even close to ever needing an ignition box. O.p. is on the right track.
An ignition box should be installed whenever u boost a Mustang.


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post #15 of 22 Old 04-15-2011, 11:19 PM Thread Starter
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I found some time from the little boy and pulled the driver side plugs, all of them except 1 where gaped at 28, the 1 was at 33. Im going to pull the down pipe off to get to the other plugs unless somebody has any tricks to getting them out without taking the pipe out.
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post #16 of 22 Old 04-15-2011, 11:25 PM
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I have a 3.5" downpipe on my car. I use a ratchet with a pivoting head to break each plug loose then I use a piece of rubber hose and attach it to the end of the plug and use it to unscrew the plug.
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post #17 of 22 Old 04-15-2011, 11:32 PM Thread Starter
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sweet!!! I have just the piece of hose for the job

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I have a 3.5" downpipe on my car. I use a ratchet with a pivoting head to break each plug loose then I use a piece of rubber hose and attach it to the end of the plug and use it to unscrew the plug.
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post #18 of 22 Old 04-16-2011, 06:20 PM
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What did the plugs look like? Did you label them?
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post #19 of 22 Old 04-17-2011, 03:24 PM
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Originally Posted by goatnipples2002 View Post
An ignition box should be installed whenever u boost a Mustang.
I've had an strim and a turbo and didn't use one either time. Stock ignition with a blaster coil. I guess I must be the only human being in the world with a boosted fox that did NEED a ignition box.
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post #20 of 22 Old 04-18-2011, 05:13 PM
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I've had an strim and a turbo and didn't use one either time. Stock ignition with a blaster coil. I guess I must be the only human being in the world with a boosted fox that did NEED a ignition box.
When u do run one u can run regular gap on the plugs. To each their own. Cheap ignition upgrade.


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post #21 of 22 Old 04-18-2011, 08:08 PM
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When u do run one u can run regular gap on the plugs. To each their own. Cheap ignition upgrade.
Regular gap? Whats that. .028 for a turbo and .034 for a vortech. I ran that on both set ups with a completely stock ignition. A box would have done nada, so it wouldn't be an upgrade. What am I missing?
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post #22 of 22 Old 04-19-2011, 10:58 AM
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Regular gap? Whats that. .028 for a turbo and .034 for a vortech. I ran that on both set ups with a completely stock ignition. A box would have done nada, so it wouldn't be an upgrade. What am I missing?
Nothing at all....u are right. I run .035 on my turbo car and I have no issues with spark blow out either. I understand where ur coming from.


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