TB \Plenum for $500 is not worth it and you will never peg the stock MAF N\ASilvr04GT said:Would a MAF or TB really make that much of a difference?
Marcus said:Man if you've only got 7500KM on it, just drive it. Don't worry about blowers or building a motor enjoy the thing and just drive it for a couple years do a few mod's here and there and have fun with it.
As for MAF's and TB's they are proven sources of power. But theres not point in adding air with out matching the fuel too. First mod for power on a pushrod 5.0 should always be the TB it's the most restricted part of the motor. With the 99+'s it's different I agree but you can't make a generalized statement that it will not gain any power or will lose power, cause that's BS. NA motors need air to, and it's actually just as important on an NA motor. They can only suck so much through, where as a blower can ram as much as it wants.
That being said I still vote for susp. like I have been from the start. And SFC's cause anyone who starts modding and racing without them is a dumbass plain and simple.
Green4.6GT said:4.6 is a long way from a 5.0, they are totally diffrent animals, and need a totalyl diffrent approach to modding .. the MAF/TB dont need to be changed until over 300 rwhp.. joe is correct, you usually loose power on a 4.6 when you mess with that stuff until the car is heavily modded,.. remember this thing is only a 281, it dosnt need alot of air, upgrading that stuff on a stockish car is a waste, much the same as putting 4'' exaust on a 5.0 wouldnt get you anywhere, neither will these mods on a 4.6 all the stock stuff flows plenty for the engine, unlike on the 5.0 ford actually put together a well flowing intake system on these cars, if only they had spent some money on the rods too
mnbf said:TB\Plenum gain horsepower N\A and with a blower.... and there's no way to say it doesnt ... http://www.modulardepot.com/?show=articlesdet&aid=30
still it is a waste of money i think ... but since im running out of things to do i might have to upgrade
WOT said:Right but NA they do make a big difference.
Which is why I am going with shorties. Only about 5 HP anyway. And at 600+ who cares about 5 HP.
Green4.6GT said:you might want to consider the longtubes anyways, install is a HUGE pita either way, so you might as well get every pony out of your 6 + hours work
your telling me lol ...and yes MAF is a waste Tb on other hand isnt... and you cant get the same effect by porting the stocker cause after marketone have a raised top .. i think you can get similar gains if you get a spacer for the stocker ... but not to sureo n that ones ... and still plenum\ tb is not worth the moneyGreen4.6GT said:you might want to consider the longtubes anyways, install is a HUGE pita either way, :
Red2000GT said:Throttle bodies,plenums and long-tubes oh my!! Ryan,your comment about the 281 not needing as much air is kinda the opposite of right(meaning wrong). Air flow is more a function of hp than displacement.If you want proof,look at how most mass air meter's are rated-in hp not by displacement. Now don't get me wrong,a 460 big block from a truck making 250 hp is still going to draw more air than a 260hp 4.6L.The math is pretty straightforward in a 281ci to 302ci comparo. The stock or stockish 302 makes 225 gross hp while the 281 makes 260(that's 35hp more,Ryan). The 4.6l uses larger tb's and mass air meter's from factory because it does flow more air than a stock/ish 5.0L. While there is proof that changing tb's and mass-air's lose power,there's as many saying they add power(never very much but an increase none the less).
Graham,you've got an excellent start no matter which way you go. I'm more of a realist,if you were to start saving for the blower,like most people it'd be hard to stare at that growing pile of money and not spend it somewhere. maybe not on the car but maybe you go out more,or you buy that cool new game,or new electronic toy. I say chose your bolt-on's wisely,the exhaust and gears were a smart choice already. Maybe some underdrives next and a cold-air kit(like the K&N one or the MAC Straight-Shot). Definately subframe connectors and struts and shocks to go with your lowering springs. Only get the things that will make a noticable difference. Sell your old parts and put that money(when your done school) towards the KB,keep the boost reasonable(nothing past 9 psi) and enjoy. Don't spend the bucks on the short block yet,the longer you wait the cheaper it'll be to do. Even now 2 years after I did mine-it's gotten about 25% cheaper. Wait 2 more and who knows? I don't think you'll even have to worry if you keep the pressure under 9psi with a good safe tune-up.
Marcus said:Man if you've only got 7500KM on it, just drive it. Don't worry about blowers or building a motor enjoy the thing and just drive it for a couple years do a few mod's here and there and have fun with it.
AtlanticGT said:I second that!
Enjoy your car while you can because once you start modding and things go wrong, it doesn't become much fun anymore as it becomes a very expensive hobby
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