Jeff,
I have a '95 SLT with the following mods: headers, Gibson cat back,
underdrive pulleys, Crane Hi6S ignition and 180 degree Stant thermostat.
I installed a Mopar hi-po computer two weeks ago and have yet to
experience ping one.
The only other major difference between our Dak's is mine is a 5 speed,
not an auto.
- Gene -
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>From: Sam Parthemer <srp@home.com>
>To: dakota-truck@buffnet.net
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>Subject: DML: Re: MP SBEC, bad pinging problem, please help!
>Date: Thu, 17 Dec 1998 16:40:26 -0800
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>Drop in a 180 degree STANT thermostat. Check the DML
>page for p/n and a complete 'How to' courtesy of Jon. I have roughly
>the same setup as you, and experienced the same problem. Putting
>the 180 F. Tstat cured about 95% of those pings... The other 5%
>will only go away (so far) by adding 104 Octane boost.
>
>Sam '95 SLT
>
>
>-----Original Message-----
>From: JeffofSLU@aol.com <JeffofSLU@aol.com>
>To: dakota-truck@buffnet.net <dakota-truck@buffnet.net>
>Date: Thursday, December 17, 1998 4:08 PM
>Subject: DML: MP SBEC, bad pinging problem, please help!
>
>
>>DML,
>> I just installed the Mopar Performance computer in my '95 V8 auto.
After
>>installation I took it for a test spin. The first time that I got on
the
>gas
>>from a dead stop I thought I heard 2 or 3 tapping sounds, but I wasn't
>quite
>>sure. These occured around 4000 rpm. I drove it around another 5
minutes or
>>so, and got on it again from about 45mph. I immediately heard what
sounded
>>like a drum solo of pinging coming from my beloved 318.
>> What's the story with this? I thought that running 93 octane (Mopar
says
>the
>>computer requires 92) would satisfy the computer's needs. I can't see
that
>>anything I've done to the truck so far (headers, MSD, cat-back,
pulleys,
>K&N)
>>could even contribute much less cause this problem.
>> The only possible solution that I can think of would be to install a
lower
>>temp thermostat, but what temp should I go with? I know that running
the
>>engine at too low an operating temp can result in as much damage to
the
>>engine as the pinging and detonation. Has anyone else had this
problem? If
>so,
>>please tell me how you dealt with it. Thanks in advance.
>
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