To Me, It's Worth It....Would It Be 4 U?
Just was going through the time slips from the various stages of my engine/exhaust modding, and thought I'd post the results. Since I usually keep my vehicles almost forever, I don't worry too much about the cost vs benefit vs. break even points. Briefly what I've done (big ticket items...over $200 or so) to the engine/exhaust in about the past 3 years are approximately as follows:
--Both Diablosport and Superchips (With Trans. App.) Tuners
--3 in. cat. back exhaust
--Custom Tubular headers and rework (total of 3 times) of cat. back
--FRI Sidewinder MDS compatible Cam and 6.1 valvetrain
Total cost of all this crap has run about $2500-2800, with the custom headers and exhaust being the most costly.
Is it worth it? Here's a WAG at the approximate gains I've gotten, not including the "fun factor" of enjoying all of it. To me it's worth it, to most, probably not.
--Approximately 70-100 rwhp
--Between 2-5 mpg on fuel economy. I haven't gotten less than 20 mpg on the highway since finished.
The following E.T's and speeds will show how the 2 degree advanced (wish I had advanced it 6 degrees like I did on my Hemi LX) cam has affected the low end power/torque, and top end of the engine. Note as speed/RPM increases, performance increases. Here are the changes in drag times from basically stock, with cat. back and tuner and then headers, cam, and improved exhaust added. Shows that the low end of the stock Hemi is pretty good, but the mid/top end, not as good.
--60 foot elapsed time improved by .079 seconds
--1/8th mile elapsed time improved by .37 seconds
--1/8th mile speed increased by 3.418 mph
--1/4 mile elapsed time improved by .582 seconds
--1/4 mile speed increased by 4.222 mph
Only a couple more minor mods. to go, some SRT reps. when the tires wear out, and a little work on the aerodynamics, and I am done....unless I can come up with something else, LOL!
05 LX/RT & 06 WK/GCO, modded similarly, MDS "ON" Light, Vortex Gens, Debadged, DashHawk, BT Catch Can, SRT CAI W/Add Air Inlet, K&N Filter, Sonnax Trans Press Booster, SC Tuner W/Adv Trans Tuning App, DS Tuner, Cust tube headers w/3 in. catback, Bilsteins, SRT frt/rear bumpers, Eibach SRT Lwr Sprgs & Sways, FRI Sidewinder Cam Adv 2*, 6.1 valvetrain, SLP 25% UD Pulley, BBK 90mm TB, SOS Coils/.060 plug gaps. 20 in. SRT Reps.