to 2.4 or not to 2.4, that is my question
03-15-2009, 01:35 AM
#27
SAI is air injection system that blows fresh air into the exhaust system on cold startups so the catalytic converter gets up to operating temp quicker.
2.4 manifold is well worth it, even without a tune.
Vulcan manifold is a turbo manifold.
03-15-2009, 01:42 AM
#28
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Another thing to note about the midrange torque loss is that on the now infamous dyno.. even with the 2.4 intake manifold loss the torque was still higher than on a stock car.
03-15-2009, 03:42 AM
#30
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no, not really except theres emissions invlved,
SAI is air injection system that blows fresh air into the exhaust system on cold startups so the catalytic converter gets up to operating temp quicker.
2.4 manifold is well worth it, even without a tune.
Vulcan manifold is a turbo manifold.
SAI is air injection system that blows fresh air into the exhaust system on cold startups so the catalytic converter gets up to operating temp quicker.
2.4 manifold is well worth it, even without a tune.
Vulcan manifold is a turbo manifold.
03-15-2009, 11:22 AM
#31
EGR recirculate exhaust gases to accomplish the same thing I thought, either way, I'm glad we only have one vacuum hose and only the EVAP system for emissions, these cars cost so many times less to maintain because of the simplicity, but still have a very respectable emissions rating
SAIR injects fresh air into the exhaust system which reacts with unburned fuel creating a HOTTER exhaust bringing the cat up to temp quicker.
03-15-2009, 11:42 AM
#32
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*blink blink*
so let me get this straight cause i only have like 300 to spend here. if i get a tune it will be pointless cause i'd have to retune to get the most out of the intake mani. right? so would it make more sense to just get the intake mani then when i get more money get the tune?!
so let me get this straight cause i only have like 300 to spend here. if i get a tune it will be pointless cause i'd have to retune to get the most out of the intake mani. right? so would it make more sense to just get the intake mani then when i get more money get the tune?!
03-15-2009, 01:00 PM
#33
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the part of the tune that is for the intake mani is a rev limiter raise, this can be done in anticipation of the mod. What I would do is tune it, do the intake manifold. then find a cheap exhaust manifold
03-16-2009, 08:40 AM
#35
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hello *tap* *tap* *tap* is this thing on? *tap* *tap* *tap* yes, the only difference is the rev limiter is raised to take advantage of the moved power band, but if you run it with your 2.2 TB you will need an adapter and won't take full advantage of it. If you change the manifold and the TB (the way I would do it if I was interested in this mod) you need a tune.
03-18-2009, 11:19 PM
#36
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I agree, 5speeds are better, but I wish we had a real transmission, like a 6 speed. I have driven 4 speed cobalts, and the transmission really impressed me, what didn't is the traction control, but I've only been impressed by one car's trection control, my sister's pontiac grand prix.
03-19-2009, 11:23 AM
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i get your point i really do i thought that too but first off the way we're geared 5th i beleive its already a double overdrive. yea its at a higher rpm, but its meant to work that way. If your complaining about 30+mpg highway you already have, you bought the wrong car go get a geo metro. secondly, shorter gears on our cars will basically just mean more shifting and depending on how you can shift may actually lower your performace. Look at the 6-speed swap for an ss, yea its nice if you can do the gearing but from what is seen theres really not much of an advantage to it. people just look down on 5-speeds cause they think there not as good cause theyre a gear short, but few cars even pull in 6th, they reach top speed in 5th.
03-19-2009, 11:25 AM
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i get your point i really do i thought that too but first off the way we're geared 5th i beleive its already a double overdrive. yea its at a higher rpm, but its meant to work that way. If your complaining about 30+mpg highway you already have, you bought the wrong car go get a geo metro. secondly, shorter gears on our cars will basically just mean more shifting and depending on how you can shift may actually lower your performace. Look at the 6-speed swap for an ss, yea its nice if you can do the gearing but from what is seen theres really not much of an advantage to it. people just look down on 5-speeds cause they think there not as good cause theyre a gear short, but few cars even pull in 6th, they reach top speed in 5th.
03-19-2009, 09:03 PM
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6 speeds are nice, but not worth the investment if u ask me.
think about it this way. instead of having 4 gears divided up between 0-100, your dividing 5 gears between 0-100. so while yes this does sound faster, think about shifts and the possible lost time from those shifts.
now if u could get a 6 speed geared so that 6th ISN'T an overdrive and the gearing makes sense, it would be easier to justify.
after having driven plenty of 6 speed vehicles, and one seven speed(take guesses people), I gotta say it just wouldn't be worth it.
think about it this way. instead of having 4 gears divided up between 0-100, your dividing 5 gears between 0-100. so while yes this does sound faster, think about shifts and the possible lost time from those shifts.
now if u could get a 6 speed geared so that 6th ISN'T an overdrive and the gearing makes sense, it would be easier to justify.
after having driven plenty of 6 speed vehicles, and one seven speed(take guesses people), I gotta say it just wouldn't be worth it.
03-19-2009, 09:36 PM
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it's a BMW M5 or M3 I would imagine, as I doubt you would be driving a Bugatti Veyron. And I would only do this if I found myself needing the F35 for strength, the 6 speed would be an added plus.