Hey everyone, I'm new and been looking at some of the posts about mods and trying to read through a lot of them and noticed that there is "sort of" a thread/post about modding your trucks but it isn't specific to performance mods only. Although there are some good threads with some of this stuff, weeding through them can be a pain in the arse since a lot of them also have other stuff like interior mods with cosmetic changes or lift kits and paint jobs and etc.. For me, I am not looking for that stuff and ONLY WANT performance info.
I thought I would start a new post for those (like me) that may be interested in what to do to your 94-98 OBS 7.3's to get more power out of them and better fuel economy BUT WANT TO SKIP the other stuff like what I mentioned above.
So, for this post, I would like everyone to post what they have done (or heard can be done) to improve performance and gain horsepower and torque and also what can be done to improve fuel efficiency (mpg) down the road. And to clerify, power and fuel efficiency do NOT have to be the same thing nor can they both be easily achieved together and I understand this. But, if you've got tips for one or the other or both that can be had together, please share.
Please do NOT include cosmetic mods or lift kits since those aren't really performance related UNLESS you truly do have or know of a lift kit that actually improves performance. Improving "ride quality" isn't really much of a performance enhancement and is more of a "luxury" for your own personal preference (in my opinion). I have nothing against these things but just want to limit what we're referring to in these threads/posts to help people that are looking mainly and/or ONLY for the "seat of your pants" improvements.
I guess the type of performance I'm talking about is mainly for hauling stuff down the road such as trailers or heavy equipment.
So, if you've already posted some stuff in other areas, please do so again but keep it mainly to the engine / drivetrain if it helps. Different rear / front axle ratios and tire sizes can be posted to help but we should probably all know that changing these will improve or decrease overall power and fuel mileage. But if you've got combinations that have worked well for you, please include them for our info.
Please post pictures when possible to help newbs like me and also post prices, tools, and time needed to complete the project from start to finish if possible. Even if a mod mainly only takes time to do such as increasing the voltage output of an IDM to 140 volts (as opposed to 100 -120) to increase the power to and out of your injectors, even though it's mainly a $5 part inside the IDM that needs soldering but takes a few hours to do, please list things like this and time involved (roughly) to help those that would like to improve their trucks.
The cheaper the mod, the better.
Oh yeah, if you could, please post what the mod will help with and how much. Such as - making a "do-it-yourself" open air breather mod will increase your power by 30-40 hp and 50-65 tq. and increase fuel economy between 1-3 mpg (average). If you have documentation of the added improvement, please provide that but if you're using your experience and numbers, please be as accurate as possible and don't fudge just to make things seem better than they really are.
It would be nice to know what each step of a mod would do to increase power / efficiency so that if you did 2 or 3 or 4 mods together, you would have a good idea what you should get out of doing a "mod project."
Anyway, I hope this comes to good use for those of you like me that are looking for only performance mods.