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-   Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 (http://www.ramforumz.com/forumdisplay.php?f=83)
-   -   Lt headers (http://www.ramforumz.com/showthread.php?t=101609)

hemi91 01-15-2012 09:47 PM

Lt headers
 
Hi, I don't know much about headers and I would like to know what I could expect out of my truck if I put Lt headers on my truck. plus would you recommend going with cats or not.

Flaminchiten 01-15-2012 10:07 PM

I think 15 - 20 hp can be expected without a tune. If you live in an area that does not require emissions you can skip the cats...I wouldn't either way, just cause it is a little better on the environment and I like our environment.

ram71351 01-16-2012 03:04 PM

I would say that would be with a tune, especially with the 3rd gens.

wvcoolvinilla 01-16-2012 03:50 PM

LT'S with a tune, new exhaust, CIA, 180 thermostat could maybe get you 30 HP. (rear wheels) That is how you must judge you mods. If you are going to put that kind of money into your mods. A day on the dyno (if you can find a shop) will pay for itself. Closest to me is in Columbus Ohio 3 hours away.

hemi91 01-17-2012 02:29 PM

whats the point of the 180 thermostat?

AllUCIsTailLights 01-17-2012 07:20 PM

i dont really know what hp points i got from my system but the headers were listed to give me 17 to 20 but i got it tuned so more than that just dont know by much but i love the performance and sound its given my truck.

chefred112 01-17-2012 11:13 PM

"A day on the dyno (if you can find a shop) will pay for itself. "

as modded as i am i have yet to hit a dyno for tuning... ive done alot of datalogging an email tuning which has worked great..altho an hour on the dyno to tweak my wot would improve my performance..

chefred112 01-17-2012 11:16 PM

Quote:

Originally Posted by hemi91 (Post 698305)
whats the point of the 180 thermostat?

a cooler motor is a stronger motor... that's why more guys get there pb's at the track this time of year...

SS4Luck 01-18-2012 04:51 AM

My long tubes netted me 21 at the wheels (before #s 308/316 and 329/347 after) Dyno was two days apart. DA and humidity were less than 3 pts off and temp was +/- 1.5*s.

I am on a 4th gen though.

I say do it. Its a great mod for the trucks and IDK if youve ever seen stock hemi manifolds but they are restrictive as hell! Cats are a personal thing. IF your in an area that requires emissions testing i wouldnt skip it. Im in SoCal but my truck is registered in MI so i passed on them, but I have a way out for now with the out of state thing.

HEaders with a good CAI make a huge difference

TheSatinPumpkin 01-18-2012 07:14 AM

Yep 180 stat may help offset from headers being installed since it may go lean. Got Hedman LT's and 3" ORY dirt cheap from a parting sale of a local member years ago. It was very noticeable during WOT. Later removed the joint section of the ORY and replaced it with a Magnaflow Y.

LT's >> Y- Pipe >> No Cats >> non foulers >> Dynomax Superturbo dump after axle.


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