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08:10:39 - 04/16/2024
Dakota Performance
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Dodgeboy
Dodge Dakota
JOIN HERE
2/26/2004
12:45:56
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 Subject: spark knock
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Message:
Alright guys i need some more help....lol...okay i have a 98 dak with the 5.2 and an auto tranny i have an intense performance stage 3 intake, relocate iat, accel plugs, wires, cap, and rotor button, custom exhaust....now for the problem when i run my hypertech programmer and try to set it for 93 the truck spark knocks....i'm wondering if i should switch spark plugs or what i should do i'm not the most knowledgeable person about this ...but i'm willing to learn so any help would be greatly appreciated.
thanks in advance guys,
Drew
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1bad99r/t
Dodge Dakota
JOIN HERE
2/26/2004
12:55:57
|  RE: spark knock
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Message:
drew,
it could be several things first off if you have a 195 thermostat get rid of it. the engine control computer is set to run it's best at 182 so if you haven't switch thermostats yet switch to a 180-185. the 195 runs to hot causing coolant pocketing and combustion chambers to run hot.
second if your running the C series plugs get rid of them they don't have a broad enough heat range to run the engine. remove the plug shields and switch to an N series plug good starting point is a RN9YC for the track and a RN11YC for the street just remember the more mods you have the colder the plug should be.
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Timberwolf
GenIII
2/26/2004
14:18:49
| RE: spark knock
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Message:
The first obvious question is, when you set the Hypertech to 93 oct, did you actually have 93 in your tank? If not that may take care of it. If you did, put a 180 Tstat in and change plugs to the next cooler plug, ex-Autolite 3923. I'm assuming by your post that you had no problems before the Hypertech, so it probably isn't your plenum gasket. How do you like the Intense Performance III Intake? I've had it on my truck for a little over a year and I love it. It sounds great when I stomp it. It's almost louder than my exhaust.
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