interesting info!!! i might try it
I didn't do this so I can hear the "whoop" 1000 rpm sooner. When I was driving around my IS-F in non-sport mode, it felt so much more sluggish than being in sport mode. It literally felt like it was still trying to breath and there was something in the way. Well, that feeling is definately gone now. It's significatly much smoother now down low in non-sport mode with this mod. I drove around both in the street and the highway yesterday and I also had a friend drive the car, both with this mod and without this mod, without telling him what I did, and he also felt the same difference...that it's much smoother down low. Your right, the main problem is after 5000rpm when the torque drops off significantly. I believe that at this point the stock intake is very restrictive and the car just can't get enough air...you need a aftermarket intake to fully solve this. In regards to voiding the warrentee...this mod can be so easily reversed that no one will know that it was even done! ...Darshana S...I would highly advise against this modification. The problem with the IS-F is not down low (where I have reached sixty in 4.2 seconds numerous times) and where there is an abundance of power on tap early but rather after 5,000 rpm's where we have seen torque curves drop off significantly, and where both intakes are fully open. Voiding your warranty to hear the often talked about "whoop" 1,000 rpm's sooner is simply idiotic, and something I would expect from Chevy iroc or Ford mustang owners!
IROC- Itailian Retards Out Cruising
I would highly advise against this modification. The problem with the IS-F is not down low (where I have reached sixty in 4.2 seconds numerous times) and where there is an abundance of power on tap early but rather after 5,000 rpm's where we have seen torque curves drop off significantly, and where both intakes are fully open. Voiding your warranty to hear the often talked about "whoop" 1,000 rpm's sooner is simply idiotic, and something I would expect from Chevy iroc or Ford mustang owners!
IROC- Itailian Retards Out Cruising
I'm sure you do own three mustangs, and when you pull up to a stop light and look around you can see a mustang to your back, to your left and to your right because you're driving a "me too" car.....as in what car do you drive? A mustang...oh, me too!!!Hey hey, carful what you say about Ford Mustang Owners, as I own one. Matter of fact, it's my 3rd !! And in the quarter mile I make the IS-F look stupid.
As far as this mod, it's not going to void your warranty by simply puling the vacuum hose off. Now if it causes damage, which i don't think it would, you might have an issue.
My 17 year old cousin is selling her pink V6 mustang with 120,000 miles if you're interested bro....let me know!Actually, mine is a Fox Body, and is pretty diffrent. As far as pulling up next to one, only happens on the track...
The resting state is the fender intake flap in open position. You can check this yourself by just taking off the passenger side engine cover and you can easily see the intake flap. If you have the vacuum line connected, as soon as you start the engine the flap closes. Disconnecting the vacuum line, like I did, results in the flap being permenantly open...Darshana S...of the vaccum to OPEN the fender vent above 3500 RPMs? If the vaccums disconnected, how will the fender vent open and stay open all by it's self? Wouldn't it just remain closed all the time, in it's normal resting state?
The much improved throttle response was also the thing that I felt the most. I'm glad you like the mod. Hopefully others will try it and give feedback...Darshana S...having performed the described mod last night. The air temp this morning was about 65 with about 20% humidity. I ran the car both through the twisty's in the hills where I live and then up on the freeway and back home again.
I have to say I really like the result. The car perfoms much better in both the auto and manual modes, without using the Sport setting. Yes there is more power and low end torque, but more importantly for me is that there is a faster throttle response thoughout the RPM band. Just like most things, allow it to breathe easier and it will perform better.
If there was a drop-in high flow after market air filter out there we'd all jump to buy it IMHO. Isn't this really the same thing but for free? I will keep an eye on my air fliter and will expect to have to change it out sooner then reccommended with this mod. Not sure there is any possible downside to this mod? Would enjoy hearing others experience with this!