Sport tune?

[Tracwithakick]

Has anyone done a tune on the 4.0L engine? What are some good mods for the drag strip ( just for fun not full on comp.)

 

[interscope8]

A lot of members tune their 4.0s with the SCT XCal tuners. Its a pretty common mod actually. I hear nothing but great things about it

 

[JohnnyO]

There aren't really many parts made for the 4.0 SOHC. Cat-back exhaust, XCal or SCT tuner, Random Technology Y-pipe, and cold air (much discussion on that, I maintain that that the OE intake IS a cold air intake), and underdrive pulleys are about it. JBA makes headers but they are pricey and the handful of people I know on the boards who have put them on report little to no difference simply because the stock manifolds are already pretty good. You could gear it up to 4.56's. Zabteck is about the only place with 4.0 speed parts. Explorer Express has some stuff too.

www.zabteck.com
www.explorerexpress.com

 

[AlexSport'00]

Yup, get the SCT XCAL tuner, and then contact HensonPerformance and they'll help make a tune for you. It's not the same as going to a tuning place and getting a custom one done in person, but I've heard that this is the best way to get things done, and I doubt that a shop could do much better than what these guys do. I've heard nothing but good things about it, and plan to get one asap.

 

[Tracwithakick]

Thanks guys! Did the 4.0 change from 01 to 05? Nobody has really tested for the 05 model year making it very hard to find anything...

 

[interscope8]

Its the exact same engine.

 

[05dakotatrac]

many things for sport tracs are marked as 01-02 or 02-03 but anything for the 01+ years work for 05

 

[OffTrac]

many things for sport tracs are marked as 01-02 or 02-03 but anything for the 01+ years work for 05

+1. Companies tested their products on the truck when it was first released, realized they weren't making money on the ST aftermarket and dropped further development. That's why the good stuff specific to the ST is so freakin' hard to find. Luckily, there's a lot of parts that are used among many different vehicles that did demand that aftermarket support or we'd be doing everything custom.

 

[just1me]

Super Six Motorsports, and Tom Morana specialize in the V6 4.0. You can get strokers, heads, cams.