billyjo

funny i had to cut mine also. At least im not the only one who cut up his plenum cover

my77stang

extra mpg and better throttle response? **** thats worth it without the HP gain

NickSezz

I got one for the 6...Made the intake sounds a lot cooler and it "seemed" to shift the power curve of the engine down to the lower rpms. What I mean is, I had better responce from 2-3k. It looks cool too and it's not hurting anything so its staying...I would like to take it off and drive then put it back of and see the difference if any...or do the same thing on a dyno...but im just too lazy...

my77stang

i should just make one, should be fairly simple to stamp out in layers of some .125 aluminum. just sandwhich together with some permatex in a vise and bingo ya got a free spacer.

kenthicken

I'd like to see some real lab testing on the claims people are making with the TBS, since I find a lot of it hard to believe (especially after falling for the "hype" and not seeing ANY benefit). Until then, it's just a "Tornado" to me.

kingsmate20

Ya, I really like to find out if they make a huge difference. Well, I guess not huge, but enought to merit buying one.

my77stang

i know its not a "tornado" deal - but how much gains are the question. racers have been using them for years under their carbs and they are supposed to help because theres more volume in the intake.

kenthicken

Right, but it's kind of a different thing with carbs. The reason for a carb spacer is twofold: 1) to keep the fuel in the carb up away from the heat of the intake manifold, primarily, and 2) to assist in the delivery of the air / fuel mixture. I'm running one on my 440 Plymouth, and it works very well.

I can't see the benefit of the TBS on our cars: 1) The spacer is between the throttle body and the intake manifold - what is the purpose? To keep the throttle body cool? Why? What benefit? It's not going to cool down the air charge. It MAY cool down the throttle body slightly from under hood heat, but probably not enough to do any good. 2) There is no fuel anywhere near the TBS, so there is no benefit to fuel cooling there. 3) Our intake manifold is a composite which dissipates heat very well, further eliminating the need for a heat dissipating device. 4) Some TBS units claim to "spin" the air charge, which is a bunch of crap - the air is so turbulent from making that 90* turn prior to the TB, that I would imagine a 1/4" thick TBS would do nothing to "spin" the air. Even if it did, this "spin" would be negated once it hits the intake, which would cause turbulence again before the air hits the intake ports and injectors...

Seriously, I would like to see some dyno sheets or anything to prove that these TBS work. All I can go by is personal experience, and my experience was no gains (mileage or otherwise) whatsoever.

my77stang

Yeah I didn't think the "spin" factor was anything other than hype. the question would be is if adding volume to the intake helps or not.