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-   -   What to do next with my hemi? (

shockey80 06-06-2013 04:22 AM

What to do next with my hemi?
I have a 2003 dodge 1500 4x4 with the hemi. I bought the truck from an old man that never used it but for hauling a boat so it has low miles. Since I bought it I have added a set of long tube mopar headers into straight pipe exhaust out the back(sounds awesome),a cold air intake, throttle body spacer, and super chips programer. It runs good but I am wanting a little more out of it. Does anyone have any input on what I should add next? I don't really want to spend the money on a supercharger but would like some input. Thanks

TheSatinPumpkin 06-06-2013 08:42 AM

remove the tbs imo.

bouf0010 06-06-2013 09:07 AM


Originally Posted by TheSatinPumpkin (Post 1118134)
remove the tbs imo.


and add a ported throttle body

chefred112 06-06-2013 04:08 PM

install a 180 tstat, e-fan, might want to do a straight thru muffler and get some low end performance back... after this then the modding get's a little more expensive (cam, heads, stall tq verter, gears...)

shockey80 06-06-2013 05:46 PM

What will a 180 thermostat do? And I don't really want to break into my motor untill I have to. I don't want to do gears either because I want to keep my gas mileage as much as possible.

chefred112 06-06-2013 06:04 PM

a cooler running motor is a stronger running'll notice in the winter time the hemi run's stronger as oppose to the heat of, it's also for security sake and an important component as you mod up (helps prevent knocking/detonation)

HemiLonestar 06-06-2013 06:13 PM

It's a trade off, you want more performance your mileage goes down. Your tuning options are a bit limited (sucks for us 03's). Pull the spacer first. Throw it away. Use it on your desk. If you don't want to get into the engine or change gears, then biggest bang for buck is probably nitrous.

chefred112 06-06-2013 06:16 PM

this is what the spacer is good for...

Raminator5280 06-06-2013 06:18 PM

180 stat helps prevent knocking?

chefred112 06-06-2013 06:25 PM

knocking is a form of lean condition or low octane offset it, you try to add more fuel, a colder motor uses more fuel. I've never complained of knocking since I started using a colder tstat...and as modded as I am that is one thing I don't need or want to worry about..

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