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Old Oct 23, 2023 | 04:46 PM
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Default Help burning wires

So as I've previously posted in some other threads so I won't go into major detail on that but I put a cx racing kit on my silverado. I dropped it off a few weeks ago to get tuned and my tuner has called me telling me it's repeatedly burning the spark plug wires and even cracking the spark plugs. He's telling me this is caused by the manifolds getting to hot and that the manifolds that came with this kit won't work that I need to changed them out. Frustrating because he recommended this kit to me and now I've invested a pretty good bit of money into this truck and don't know what to do. Basically paying him for something he couldn't complete but we won't get into that. What can I do to solve this problem and does this sound right to you guys? I'm lost n frustrated with this
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Old Oct 23, 2023 | 05:57 PM
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Maybe a pic or two to help with what he's saying??
What kit is it? With the cast or tube headers?
Heat sleeves on any wires/plugs?
Is this happening only under hi boost?
If it's getting that "hot", I'd be looking at the tune before I condemned the manifolds.
Cracking plugs?? I've been around the block for MANY yrs...Haven't heard that.
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Old Oct 23, 2023 | 06:05 PM
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Originally Posted by Old Buzzard
Maybe a pic or two to help with what he's saying??
What kit is it? With the cast or tube headers?
Heat sleeves on any wires/plugs?
Is this happening only under hi boost?
If it's getting that "hot", I'd be looking at the tune before I condemned the manifolds.
Cracking plugs?? I've been around the block for MANY yrs...Haven't heard that.
I wish I could give you a picture but he bus the truck, it's a cx racing kit and I even called them and they said nobody else has complained of this problem. The manifold are wrapped and the plugs have the heat socks on them. Hes telling me he went through over 40 different plug wires and nothing works. He said it happens around 4 thousand rpms. He said every time he tries to make a pull and it starts getting into boost that it immediately starts misfiring and he backs off and checks the plugs and once again they are burnt and the ceramic is cracked. Honestly man I know it's an ebay kit but the headers seem build fairly decent. They don't seem thin or cheap .
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Old Oct 23, 2023 | 06:12 PM
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Pictures I took before I sent it to him
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Old Oct 23, 2023 | 07:12 PM
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If it’s getting as hot as he claims it would absolutely annihilate those coolant and AC lines long before the porcelain of the plug cracked.

It sounds to me like he’s got the timing crazy retarded or running it super rich and everything is nuclear. I will say that kit would probably be served by a coil pack relocate and some good plugs with 90 degree boots.
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Old Oct 23, 2023 | 07:16 PM
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Originally Posted by Quito195
If it’s getting as hot as he claims it would absolutely annihilate those coolant and AC lines long before the porcelain of the plug cracked.

It sounds to me like he’s got the timing crazy retarded or running it super rich and everything is nuclear. I will say that kit would probably be served by a coil pack relocate and some good plugs with 90 degree boots.
I can definitely relocate the coal packs, it just doesn't make sense to me, he's tuned my truck plenty of times and I've never had issues like this with him. Idk what to do because there aren't many tuners around here. I added a second fuel pump to the truck recently and it's on a hobbs switch. Is there anyway this could have something to do with it?
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Old Oct 23, 2023 | 08:46 PM
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Also im on e85, if that makes a difference
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Old Oct 23, 2023 | 09:10 PM
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Severe…as in SEVERE detonation will crack porcelain on plugs. But it seems your tuner would see that happening. I’ve seen it do this and it was so bad that it melted holes in the piston tops. I wonder if your tuner has turned off your KS?
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Old Oct 23, 2023 | 09:13 PM
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Originally Posted by Che70velle
Severe…as in SEVERE detonation will crack porcelain on plugs. But it seems your tuner would see that happening. I’ve seen it do this and it was so bad that it melted holes in the piston tops. I wonder if your tuner has turned off your KS?
I would think he would see that in the tune also. Apparently as soon as it builds boost the wires melt and plugs crack. He claims it's the manifold. What is ks?
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Old Oct 23, 2023 | 09:20 PM
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KS = knock sensors.

if it’s detonating hard enough to break plugs on E85 it’s probably blown up anyways, so we’ll just keep moving.

If I were you I’d get the thing back and do a coil relocate and make some plug wires for it. I use the accel ones with the ceramic boots that everyone hates, but they’ve always worked good for me.

I also completely question your tuners ability to make something forced induction run after reading your threads. But that’s between you and him.
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Old Oct 23, 2023 | 09:44 PM
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Originally Posted by Che70velle
Severe…as in SEVERE detonation will crack porcelain on plugs. But it seems your tuner would see that happening. I’ve seen it do this and it was so bad that it melted holes in the piston tops. I wonder if your tuner has turned off your KS?
I was actually think that he doesn't have enough timing in it which will send the EGTs through the roof.

Andrew
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Old Oct 23, 2023 | 09:47 PM
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Originally Posted by Quito195
KS = knock sensors.

if it’s detonating hard enough to break plugs on E85 it’s probably blown up anyways, so we’ll just keep moving.

If I were you I’d get the thing back and do a coil relocate and make some plug wires for it. I use the accel ones with the ceramic boots that everyone hates, but they’ve always worked good for me.

I also completely question your tuners ability to make something forced induction run after reading your threads. But that’s between you and him.
I'll definitely do that and I question his abilities too now. I've had it tuned NA a few times through him but this was the first tune with the turbo. I'll see if he will upload the tune on a driver for me, which I doubt but I'll ask
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Old Oct 23, 2023 | 09:48 PM
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Originally Posted by Project GatTagO
I was actually think that he doesn't have enough timing in it which will send the EGTs through the roof.

Andrew
what should the timing be set at? I'll definitely ask what he has it set at,
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Old Oct 23, 2023 | 09:51 PM
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Originally Posted by Tommy42088
what should the timing be set at? I'll definitely ask what he has it set at
There is no way to answer this question without knowing more details, and even then I can only give approximate numbers.

It is fairly common to keep the timing low on the initial pulls, but the timing can't be so low that it starts to cause issues. This is why it is also useful to have even one EGT probe at the turbine inlet to monitor the EGTs.

Andrew
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Old Oct 23, 2023 | 10:09 PM
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Originally Posted by Project GatTagO
There is no way to answer this question without knowing more details, and even then I can only give approximate numbers.

It is fairly common to keep the timing low on the initial pulls, but the timing can't be so low that it starts to cause issues. This is why it is also useful to have even one EGT probe at the turbine inlet to monitor the EGTs.

Andrew
Oh ok, i guess i was wondering if there were numbers he would say that would throw up a major red flag. I guess i need to get my truck back and find a good tuner here in Louisiana. I'm sure he's going to charge me an arm and a leg for doing nothing but making my truck worse then b4. If I buy hp tuners can is it possible to upload the tune he has on the truck?
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Old Oct 24, 2023 | 05:19 AM
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Also my plugs are nk br7ef and I have them gapped at 30. Do you agree with the gap I have on the plugs. I'm on 15 psi
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Old Oct 24, 2023 | 05:36 AM
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You could try the gap around .024, even lower, maybe a better heat rest. plugwire.
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Old Oct 24, 2023 | 05:51 AM
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Originally Posted by forcd ind
You could try the gap around .024, even lower, maybe a better heat rest. plugwire.
which plug would you recommend?
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Old Oct 24, 2023 | 06:44 AM
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The root cause!
"I've had it tuned NA a few times through him but this was the first tune with the turbo".
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Old Oct 24, 2023 | 07:16 AM
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Originally Posted by Old Buzzard
The root cause!
"I've had it tuned NA a few times through him but this was the first tune with the turbo".
the first time I've had him tune a turbo vehicle for me, I've seen numerous turbo vehicles there for other customers,but yes i definitely understand your point
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