JET Powerchip for s197 4.0

[Maverick07]

I see a person selling a JET powerchip for an s197 4.0 on craigslist.. JET claims it can boost HP and Tq by 30 and even increase mileage.. I was wondering if anyone had any experience with the chip and if its worth it.. the ad says he's selling a "slightly used" one for 135 and it looks like the retail for a new chip is in the $300 range.. wondering if I should buy or not.. feedback??

Oh also, I'm looking for black rear quarter window louvers and rear windshield louver too.. anyone have any ideas? best places to buy?

[GT800]

alright bud doesnt look like anyone else has chimed here so ill give you the low down. the jet module is a very basic upgrade tune that cannot be modified in any way it will give you a slight increase in power 10 if your lucky because it cant really go crazy or it would be unsafe. my personal recomendation would be to grab a diablo or an sct off the forums you can normally get one for arounmd 150-200 used and then you can at least modify the tune you put in the car and adjust for tires and gears and what not plus you have the added convenience of being able to read your cels the guy selling that chip most likely did the same thing.

[PWRBY4D]

exactly what dan said. i would go sct/diablo it will be more expensive then the chip but much more you can do with the sct or diablo and in the long run will be much cheaper as you keep modding your car.

[Hotshot]

especially since you can also pull codes with it too should you run into an issue. you can data log and do all sorts of things with it, hence why a SCT Xcal3 is $379

[GBabeStang05]

Why not just go for a cold air intake/tuner combo kit? It gives our cars a lot of pick-up...my dad did it on my mom's 08 v6 vert, it picks up SO much better. I'm planning on doing it to my 05 when I get the money together

[Hotshot]

Originally Posted by GBabeStang05

Why not just go for a cold air intake/tuner combo kit? It gives our cars a lot of pick-up...my dad did it on my mom's 08 v6 vert, it picks up SO much better. I'm planning on doing it to my 05 when I get the money together

+1 its the gateway mod to the S197, it gets you hooked

After a CAI and tune i recommend a set of taller gears if you're looking for extra grunt. It doesn't add HP but it keeps you in the power band longer and you get into it faster. It will "feel" like you gained a ton of HP.

http://www.allfordmustangs.com/forum...ml#post1704053

here is a little reading that has helped a few people. It has a lot of basic info that i compiled but also some stuff that isn't.

[BK07V6]

Slight correction to the above post...

You do not want "taller" rear gears. "Taller" means a lower ratio...i.e. 3:11 to 1 vs. 2:73 to 1. The 2:73 to 1 gear set would be "taller".
What you would look for are "Steeper" gears... i.e. 3:73 to 1 vs. 3:11 to 1. The 3:73 to 1 set would be "steeper".

What all this number mumbo jumbo really means is the higher the number, the more times the drive shaft has to turn to rotate the tires once. 3:73 rotations of the drive shaft to turn the tires once for example. As with a multi-speed bicycle, when you put it in first gear, you can pedal up a hill. You being the 'engine' on a bike can produce more torque in the lower gears, however, you can't go as fast. Same thing with a car... lower ratio, more "grunt". There is a tradeoff however... milage... lower/steeper gears and your engine has to rev higher, thus burning more fuel.

A good place to look for complete, ready to bolt in rear ends with different gear ratios is.... http://www.newtakeoff.com/

Hope this helps

[PWRBY4D]

Originally Posted by BK07V6

Slight correction to the above post...

You do not want "taller" rear gears. "Taller" means a lower ratio...i.e. 3:11 to 1 vs. 2:73 to 1. The 2:73 to 1 gear set would be "taller".
What you would look for are "Steeper" gears... i.e. 3:73 to 1 vs. 3:11 to 1. The 3:73 to 1 set would be "steeper".

What all this number mumbo jumbo really means is the higher the number, the more times the drive shaft has to turn to rotate the tires once. 3:73 rotations of the drive shaft to turn the tires once for example. As with a multi-speed bicycle, when you put it in first gear, you can pedal up a hill. You being the 'engine' on a bike can produce more torque in the lower gears, however, you can't go as fast. Same thing with a car... lower ratio, more "grunt". There is a tradeoff however... milage... lower/steeper gears and your engine has to rev higher, thus burning more fuel.

A good place to look for complete, ready to bolt in rear ends with different gear ratios is.... http://www.newtakeoff.com/

Hope this helps

well... yeah kinda...... taller and steeper.. yes. you will be able to go "as fast" though and even faster... depends on how you look at it. fast as in: moving faster or fast as in the top speed i will be able to go before i run out of gear? unless you are looking to go over 125 mph+ then that will be an issue but for 99% of us that is "fast enough". I will give you an example. With an overdrive and a 28" tire at 125 mph with 4:30 gears you will be turning 6450 RPM. Same scenario with 331 gears (stock) you will be turning 4950 RPM. Your car will have more torque from a dead stop with the "steeper" gear getting you off the line provided you arent spinning the wheels off the car. but with "steeper" gears you will gain torque and lose some hp because it will take more hp to turn the steeper gear ratio. your top end will still be there you will just be at a higher rpm than before... you will never redline 5th or O/D unless you were running gears with a 5: gear ratio and need to go faster than 125 mph... i have very steep gears (4:30's) and i can hit 120 no problem... but my RPM will be close to 1200 higher than with the stock 3:31 gears my car came with... you will suffer gas milage at higher rpm but around town it is likely you will get better milage...

now. you can increase what your engines capable RPM is. Headers, Heads, Cams, stroker kits etc.... Depending on how far you want to go you can make it so that your car will redline at a much higher RPM than stock which will allow you to run a much "steeper" gear giving you gobs of low end torque end also having a high RPM for top end speed.

also, a big factor here is what size rim/tire do you run? 26" 27" 28" etc... The taller the tire the more gear you will want to turn them if you are looking to go from a dead stop quick. If you are running a set of 20" wheels a "steeper" gear will work better than a "taller" because turning big tires takes lots of torque.

Here is a link that is pretty cool:

http://www.moddedmustangs.com/performance-calculators/

do you want to track the car at the strip or is it a daily driver that you just want a little bit more "get pushed back into the seat" off the line? do you drive more around town or highway? are you okay with losing a little gas milage even care about gas milage? the gear ratio calculator will help you figure out what you need to answer all those questions...

if you go to the gear ratio calculator in the link above you can enter in different gear sets (331, 355, 373, 390. 410 430 456) your tire size in inches / final drive of tranny (if you have o/d or 5th gear enter in 1 as a final drive) and mph and it will tell you what your rpm will be at.

[BK07V6]

Chris, you are correct for the most part, but if you were someone like me who has to drive a 70 mile round trip for work, and whose Stang is their only car, those steeper gears are gonna hurt at the pump. Granted, I've had my lil 6er over 100mph once... just to know it could do it but, I do know that rolling down RT80 with 3:73's or higher is gonna make the gas gauge an interactive thing to watch. As it is with the stock 3:10's I suck down a 1/4 tank a day None the less, a fun NJStangers conversation

[PWRBY4D]

actually i drive 150 miles a day round trip. but i do it in my 2wd ranger that gets better gas milage. it's all good! gears, gas milage, speed etc. you are correct gas will suffer but if speed is what you need there is no way to get both. maybe they will build an electric mustang that can get you to 60 in 2 seconds, 10 sec 1/4 mile and go 1000 miles eventually.. lol.. hope to see you at island and some more meets.