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Aaro
Dodge Dakota
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4/17/2002
22:26:52
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 Subject: Heat-soaked
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The truck is a 1997 ,SB , SC ,5.2 , auto , 3.55 LSD with 26" tall tires . I have alot of bolt on mods.K&N gen II with 9" S&B filter,JBA headers,Dyno Max Ultra-flo, ASP undedrive ,ported 50mm TB ,180 stat , MSD coil & wires,Trans-go shift kit,Black Magic fan, Mopar PCM ,IAT adjuster ,....,I run low 14's if it is cool out or I keep the underhood temps down (ran a 13.92 on the G-Tech at 20deg outside temp) .On a 90 deg day with a long stage I run mid 15's.I have cut out the flap next to the rad & bent the K&N heat shield to pull in more cold air and that helped ,low 15's .My water temp stays down at 190 but the power goes away when it gets hot.Would the M1 help this alot? or should I try a 160 stat? P.S. I plan on doing the M1 this summer anyhow.
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Fubar512
Dodge Dakota
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4/17/2002
23:02:38
| RE: Heat-soaked
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Did you try removing the Radiator support passenger-side flap yet?
Also, how about constructing a "chill box" around the intake tube, and filling it with ice water?
I'm experimenting with this idea right now, on my '99 5.2.
4.7s have that nice plastic intake manifold, and they don't seem to suffer from the "heat sink" effect like the 5.2s and 5.9s do. Damn it! : )
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Aaro
Dodge Dakota
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4/17/2002
23:17:30
| RE: Heat-soaked
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Is the M1 an air gap manifold,those are so easy to ice down.
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Fubar512
Dodge Dakota
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4/17/2002
23:20:04
| RE: Heat-soaked
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Yes, it's an air gap.
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Aaro
Dodge Dakota
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4/18/2002
20:45:01
| RE: Heat-soaked
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Fubar512 ; have you tryed a 160 stat ?? Great news , it will only be 50 for a high temp on sat here in N-E ,IL .Looks like I will get some low 14sec runs in before the M1 install.
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smokem
Dodge Dakota
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4/20/2002
07:44:53
| RE: Heat-soaked
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have you thought about water injection?
its been used for years, mainly to reduce detonation on turbo cars/trucks and on old muscle cars with higher compression, but will greatly reduce the intake charge temperature . they claim about 15% more power and mileage because your timimg stays advanced much longer due to lower cumbustion temps.
check out this web site . just an idea. havent tried it , but thinking about it , makes alot of sense!!
www.racetep.com
or
www.510again.com/articles/watering/watering.html
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Tom Slick
GenII
 
4/20/2002
09:49:53
| RE: Heat-soaked
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Water injection is a band-aid...for engines with inadequate heat, fuel, and timing management.
You might check out this website and look at what they have:
http://www.ramairbox.com/
Later!
Tom "Slick"
96 Dakota Sport 5.2 RC SB
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Fubar512
Dodge Dakota
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4/20/2002
22:32:23
| RE: Heat-soaked
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Aaro, just flushed the cooling system and popped in a 180 a couple of weeks ago. I'll stick to a 180 for a good reason: I believe that you should try to keep your oil temp over 210 degrees, to ensure that you heat it enough to get all the condensation out of it. Going to a 160 tstat my not allow the oil to reach that temp under a light load.
Just my 2 cents.
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Fubar512
Dodge Dakota
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4/20/2002
22:58:50
| RE: Heat-soaked
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One more thing...just read a response to another post....Tom Slick says going to a 160 will trigger a MIL from the ECM.
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Aaro
Dodge Dakota
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4/21/2002
19:08:06
| RE: Heat-soaked
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Just found part of the problem ,the mopar pcm is making it slower ? don't know if that has to do with the 5200 rpm shift point or the fact that the idle and no load 3000 rpm spark advance are lower with the mopar pcm.A test back to stock pcm and I could feel that it was faster,the g-tech proved this.
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