BAFMustangGT said:First of all, get rid of your CAI. They net you no measurable power gains. The invariably involve isolating the air filter area from the hot engine bay. A good start would be plugging all the coolant passages that heat the throttle as well as the intake manifolds. The heated manifolds(like every other car out there) is why cold air intakes don't make diddly for difference - because the intake manifolds are heated! This is also why you can feel the difference when your engine is cold - because the intake manifolds are still cold also!
Conclusion: Don't bother with cold air intakes until you manage to block/bypass the intake manifold heating.
For the T/B, a T/B alone cannot gain more than 1-2 rwhp unless you have forced induction. The intake simply cannot make use of the extra size. The aftermarket GT intakes are allowing for bigger throttle bodies to be used today though. THus...the T/B and Plenum will do very little at all and not worth it for you.
Im telling you rigth now, if you dont have em (which according to yoru sig you dont), get 4.10 gears. You will be thanking me later. 4.10s minimum on a daily driven 4.6L N/A mustang.
Yeah, read the reports on modular depot linked by twogts4us; they are very informative.DiabloRojoStang said:What gains can be expected from a C&L plenum and a 70mm TB? And also a SCT dyno tune.
I'd believe it. Really what it shows is that this is where the OEM design began to fail (or be limited by its design). As I reported just after this upgrade, it is REALLY noticable at 3K. But AT 3K, you know something has changed - it just pulls and pulls like it never did before. Don't put it all on the peaks...01GT eibach said:With the 70 mm TB and new upper intake combo, is it true there are no gains less than 3000 rpms with the peak gain showing up around 5500 rpm?
BAFMustangGT said:First of all, get rid of your CAI. They net you no measurable power gains. The invariably involve isolating the air filter area from the hot engine bay. A good start would be plugging all the coolant passages that heat the throttle as well as the intake manifolds. The heated manifolds(like every other car out there) is why cold air intakes don't make diddly for difference - because the intake manifolds are heated! This is also why you can feel the difference when your engine is cold - because the intake manifolds are still cold also!
Conclusion: Don't bother with cold air intakes until you manage to block/bypass the intake manifold heating.
For the T/B, a T/B alone cannot gain more than 1-2 rwhp unless you have forced induction. The intake simply cannot make use of the extra size. The aftermarket GT intakes are allowing for bigger throttle bodies to be used today though. THus...the T/B and Plenum will do very little at all and not worth it for you.
Im telling you rigth now, if you dont have em (which according to yoru sig you dont), get 4.10 gears. You will be thanking me later. 4.10s minimum on a daily driven 4.6L N/A mustang.
You must be talking about me...! Yeah, well that's really to be expected on a stock or near-stock GT. There are gains to be had with a TA and UDP or a tune, but they all add up to about the same. My 02 was dyno'd at 233 RWHP before the Accufab plenum and TB & C&L Trueflow Tube. Take out about 8 HP or so for the catback, and I probably gained about 5 HP with the SCT chip over a base guesstimate of 220. But smiling now with probably 240 at the wheels. SCT is great stuff, and their Racers Package Software is awesome (wish I had it). I'm just not really taking advantage of the possible gains, but my tuner wants another $375 for dyno time, reburn, etc. (Yikes! - no thanks, If I have to spend that, I'll get the software and a data logger)Go HoTO! said:I have read many posts from guys getting only 5 or 6 hp after dropping big bucks on a tune.
I have the stock TB with the C&L plenum(70mm is on it's way). Very noticeable gain from just the C&L. Could chirp second before. Now, I can really grab second gear and the power continues through the band when it used to drop off.chimchim said:Anyone have this setup? I have a chance to get a brand new C&L Plenum for cheap from a buddy of mine and I will install with stock TB. Anybody know the HP difference between stock and/or 70 and 75MM? Also, I saw this on Horsepower TV a while ago, Can you take a dremel or dremel type tool and smooth out the very edge of the TB so that it lines up with the opening to the plenum??? Or is this even worth the waste of time and chance of screwing it up? Your thoughts would be appreciated. Thanks.
chimchim said:Thanks for the input, guys. The C&L that my buddy has is for an 02 and I have a 97. Any ideas on how to attach my smaller pcv hose to the larger fitting with no LEAKS? Any help would be appreciated.