thats a list of all the mod's i could find to be fairly inexpensive and show some results on a dyno/ street, and that can be installed with average joe tools and in average joe time. with the singular exception being the long tube headers, from what i understand they're a bitch.
*= prices vary depending on maker.
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2003 Ox Wht Mach 1 1:814
bone stock
Her name is Melanie
I've been trying to figure that out too. My guess (and it really is a guess) is that it reduces resriction in the intake manifold in some way. Porting makes sense because it is the process of removing any burrs or castings that may impede airflow, but the spacer doesn't really do that. Maybe it allows more air to be in the intake at a given time?
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2008 MS3, MS CAI, Test Pipe
2008 SI Sedan, Stock
this is going to be a very very rough explaination, but here it goes.
the intake on the mach is kinda crunched real close to the engine, and when the air goes in, it's really tight, and "restricted". So the intake spacer add's a gap so more air/ more cool air can flow in easier and thus becoming less of a restriction on the engine, and forcing the better air in allows for more hp/ tq to be achieved.... and it gives you better power thoughout the power band, so even though your peak gains aren't much, 4-7hp and 15-20 ftlb, this is an increase in the WHOLE rpm range.
wow i really butchered this with my limited understanding, but thats the kinda sorta way it works and what it does.
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2003 Ox Wht Mach 1 1:814
bone stock
Her name is Melanie
also, with a spacer there is a larger volume of air for the induction system to pull from, so when the injector pulse is mixed with the air coursing down the intake ports, there is also a slightly greater velocity to the charge. That's another part of the help
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Quote:
Acer2428
If MF were a Disney movie, I'd be the retarded step-brother who eventually saves everyone by hitting the burgular over the head with a frying pan and then clapping my hands all retarded-like.
yes, there are any size you want, Roy on here just made a 3" one. he has advised me that a 3/8" spacer is optimal for the machs, and you want the largest one possible for the cobra.
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2003 Ox Wht Mach 1 1:814
bone stock
Her name is Melanie
PM RoyC. Says he's a newb - he ain't. He CNC's them himself. 3/8" is best unless you want to muck with your EGR. (like, eliminate it.)
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Quote:
Acer2428
If MF were a Disney movie, I'd be the retarded step-brother who eventually saves everyone by hitting the burgular over the head with a frying pan and then clapping my hands all retarded-like.