Valve Bodies Question

Most people are going to recommend the j-mod for the valve body. I went this route, especially since the guy that came up with the j-mod is the same guy who designed the aod series of transmissions for ford. Anyway, when I manually shift my car with the j-mod, converter, and 4.10s it definately has some balls! Far different then when I first got the car. I think you can make a car with a relatively modest amount of horsepower feel and perform pretty impressively with these mods, but ultimately torque and horsepower are what makes the car get up and go. So basically you need one of two things: a nicely setup driveline with gears, converter, and valve body modification or an excessive amount of horsepower (ie blower, turbo, nitrous) to really have a "fun" car. As to the valve body, you can manually shift our valve bodies effectively especially after you open up the fluid circuits a little, but sometimes the auto feature is still nice to have. Just my 2 cents

uhoh5.0 said:

Most people are going to recommend the j-mod for the valve body. I went this route, especially since the guy that came up with the j-mod is the same guy who designed the aod series of transmissions for ford. Anyway, when I manually shift my car with the j-mod, converter, and 4.10s it definately has some balls! Far different then when I first got the car. I think you can make a car with a relatively modest amount of horsepower feel and perform pretty impressively with these mods, but ultimately torque and horsepower are what makes the car get up and go. So basically you need one of two things: a nicely setup driveline with gears, converter, and valve body modification or an excessive amount of horsepower (ie blower, turbo, nitrous) to really have a "fun" car. As to the valve body, you can manually shift our valve bodies effectively especially after you open up the fluid circuits a little, but sometimes the auto feature is still nice to have. Just my 2 cents

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I agree!

Put in a Lentech Manual valve body and you will be able to shift it all the time.

Well, the cost break down kinda goes like this:
1. j-mod is basically free but you would have to pay someone to do it (labor). I had about $20.00 in parts and about $35.00 in fluid and the guy that did mine charged me $100.00.

2. If you have a handheld tuner, you can adjust the rpm the car shifts at and increase line pressure somewhat. If you are primarily interested in manually shifting the car this wouldn't be a must, but it allows you to maximize alot more perameters than just the transmission. ($299.99)

3. A set of rear end gears will really wake your car up, especially with the previously mentioned items. 4.10s seem to be the most widely used gear in an auto and that is what I went with. ($200.00 for the gears + about that much for the install=$400.00)

4. A high-stall converter is expensive, but of all the performance mods you add to your car this one will give you the biggest gain (except of course for a blower, turbo, or N2O) Expect to pay around $800.00 for a good one and about $250.00 to get it installed. You can expect about a 0.2 sec reduction in 60 ft. times and somewhere between 4 and 5 tenths in the quarter depending on traction which will definately be an issue with the items mentioned.

You could do it with a ratchet shifter and a few tweaks to your shift schedule using an Xcal2.

J-mod is pretty easy, we did it in a few hours. It definately wakes the shifts up, especially with a handheld tuner. http://www.tccoa.net and http://www.crownvic.net/tech/4R70Wnotes.pdf both have the info you need to do it.

Speaking of Ratchet Shifters, does anyone make one for an 04? The only one I have ever seen for our cars is from B&M but they say it only works up to the 2000 model year??? I'm starting to wish I had gotten the SCT tuner too, since the diablosport software doesn't allow you to adjust part throttle shift points. What other cool stuff does that SCT tuner do for the auto cars compared to the diablosport?