Is it possible that Ford is just taking the Mountune package and renaming it as a Ford item?
Is MP215 the way to go?
Just got my new ST (only driven 1000km) and is thinking of getting a tune for it. I wanna keep the warranty on it, so it must be Mp215 that is the way to go? I also want as much torque at high rpm as possible as a NA engine without loosing too much midrange torque - which tune is best for that?
Thanks in advance.
Thanks in advance.
1 - 5 of 81 Posts
My FIST just arrived yesterday and I am picking up today. I already have the MP 215 kit in my garage waiting to get installed by the dealer. I am actually happy that the torque limiting is still present with the MP 215 as spinning the wheels in the lower gears seems pointless and would affect low speed handlingFWIW, I had the MP215 installed today. I was a walk-in customer to my Ford dealer and they got it installed in 45 minutes, no problem.
There is a noticeable increase in power, mostly in the mid range torque. The car pulls hard all the way to redline now. I thought I'd be annoyed at having the kit keep the torque limiter, but honestly it's not a concern to me (1st gear simply spins tires now...not sure how increasing boost would help?).
I'm a happy customer and would recommend it to anyone in a flash. The only concern I have is that I'm only getting 21psi of boost WOT in third.. I've seen reports of people hitting 23psi. I'm wondering if I have a loose hose clamp somewhere?
I use to have a Kawasaki ZX-14. Slightly modded, 170 rear wheel HP and 115 ft. lbs of torque. Kawasaki also limited power in the first 3 gears. Of course the internet expects said this was total garbage and determined if you removed the secondary throttle flys (controlled by the computer), you could have full power in all gears all the time. So I decided to do this mod. Now this was ok in a straight line. You could keep the front wheel off the ground until you hit fifth gear. What was not as good was when you were in corners in the lower gears if you hit just a little too much power the rear tire would break loose on dry pavment or the bike would try to wheelie or do both at the same time.I'm saying there and reasons why manufacturers generally try to limit torque being applied to their gears in the transmission so that the transmission as a whole has long life expectancy. The transmission is designed for the job of the stock car with no mods, I don't think 1st and 2nd gear are designed for the full amount of torque available and at the same time have a long life expectancy.
I guess if I had Moto GP riding skills, this would be no big deal, but pulling a wheelie or smoking the tire when the bike is laid over in a corner at 100 mph is little disconcerting for most.
I put the bike back to stock (put flys back in, but left on aftermarket exhaust and power commander) and was much happier and still alive to talk about it.
Bottom line, don't assume your engineering skills or the aftermarket exceeds the manufacturers engineering skills.
If I wanted a much faster car than the FIST, then I would have bought one. I am confident the MP 215 kit will give me what I need and not kill the long term reliability of the car.
Bingo, we have a correct answer! Use to have a turbo Miata with the Flying Miata set up. Great after market turbo set up, but had a rear differential failure eventually and synchro's went prematurely in the transmission. Turbo more than doubled stock HP and torque. I drove it moderately hard but did not auto cross, but as well built a car as it was, was not designed for the power increase I gave itThe reason that limiter is most likely in there for the 1st and 2nd gear is for two reasons, first to prevent excessive wheel spin and second & more importantly to limit the amount of torque being applied to 1st and 2nd gear. Again the reason why Ford is approving MP215 as warranty approved is because they don't want to shorten the life of the transmission by wrecking 1st and 2nd gears because they are probably only designed to take only so much torque.
I have seen this in other cars where guys add a turbo to a NA engine and experience a short time later a failure of 2nd gear in the the tranmission due to the change in gear ration between 1st and 2nd gear and all that torque being applied to 2nd gear when it wasn't designed for that level of torque.
not installed yetWhat did your dealer charge for the install?
1 - 5 of 81 Posts
- This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Ford Fiesta ST Forum
A forum community dedicated to Ford Fiesta ST owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more!
Full Forum Listing
Recommended Communities
