12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

performance upgrades..??

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  #1  
Old 01-23-2012, 06:41 PM
crazycrawler32's Avatar
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Default performance upgrades..??

i have a 98 12v looking to do a little upgrading... i have a (0) fuel plate and starwheel maxed.... i have a $1000 dollars to spend and want to do it wisely.... please any ideas... i use it to pull trailers and daily use.... the only concern i have with it is rite now when i tow mild loads or when im in the fuel alot the exhaust temp gets hot... thanks..
 
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Old 01-23-2012, 07:17 PM
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Transmission first! I effed myself on this one Do a search and find the free mods. plenty around there. And a bigger exhaust, if stalk, will help.
 
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Old 01-24-2012, 09:34 AM
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The transmission is a good place to start. If thats all set then you may want to invest in a good intake/exhaust. Then Id bump up your timing a little bit
 
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Old 01-24-2012, 04:15 PM
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exhaust, 4k's and buy the timing stuff so you can play with that.
 
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Old 01-25-2012, 01:08 AM
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Doesn't maxing the starwheel require a lot of boost to move the arm which means it's restricting fuel??
 
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Old 01-25-2012, 09:49 AM
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Upgrade the trans first. I know it's not as much fun as making more power but it's for sure a worthwhile investment. I would start with a good shift kit with billet servo and accumulator. I'm happy with the kit I got from DTT, I like it better than the Transgo kits. That will set you back around $370. After that I would suggest saving up a little more funds and picking up a billet triple disk converter. After doing a LOT of research I ended up going with a rebuilt triple from DPC (Diesel Performance Converters) and couldn't be happier. It's a night and day difference between a stock converter and a triple.

How high are your egt's getting?
 

Last edited by South Tx Coal Roller; 01-25-2012 at 09:51 AM.
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