TB and Plenum

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Aug 6, 2008 | 01:16 PM

#11

Smiths01GT

1st Gear Member

Joined: Jul 2007

Posts: 99

From:

RE: TB and Plenum

Quote:

ORIGINAL: cliffyk

A 70 mm TB is plenty (read more here), a 75 won't hurt performance but it can make low rpm cruising (1000 to 1200 rpm which is arguably too low anyway) a bit twitchy as compared to the stock 65 mm TB.[/align][/align]I have the Pro Products 70 mm TB and their plenum (same as TrickFlow) and am quite pleased with them...[/align][/align]

[/align][/align]

I did not realize Trick Flow was the same. Good info

I also have the 70mm Pro Products TB & Plenum setup... good throttle response as well as a nice sound. And its affordable!

Aug 6, 2008 | 02:13 PM

#12

teej281

4.6L Section Moderator

Joined: Nov 2007

Posts: 10,286

From: South Central PA

RE: TB and Plenum

where did you get the plenum painted red??? that looks uber sweet. i want one.

Aug 6, 2008 | 02:53 PM

#13

oxfordgt

6th Gear Member

Joined: May 2006

Posts: 6,448

From: Ohio

RE: TB and Plenum

I have a professional products 75mm TB on my car and its garbage. I had to take a drill to it just to get the throttle cable on it. I also have a 75mm TB/Plenum from MAC and am very happy with it.

Check this out http://dagostinoracing.com/index.php...ducts_id=15691

Aug 6, 2008 | 03:28 PM

#14

cliffyk

TECH SAVANT

Joined: Dec 2006

Posts: 10,937

From: Saint Augustine, FL

RE: TB and Plenum

Quote:

ORIGINAL: teej281

where did you get the plenum painted red??? that looks uber sweet. i want one.

[/align][/align]It's powder coated, a local custom shop was shooting a bike frame in candy-apple red (actually transparent red in powder) the day I dropped by, it's probably not the color I would have chosen but it only cost me a six-pack of longnecks...[/align]

Aug 6, 2008 | 05:43 PM

#15

enrobriaffej

3rd Gear Member

Joined: Sep 2006

Posts: 638

From: DFW

RE: TB and Plenum

Quote:

ORIGINAL: defconfire

Quote:

ORIGINAL: enrobriaffej

i got the accufab b/c i allowed myselft to buy into what accufab was claiming(superior product). i only noticed a small differnce in throttle response, dont have anything to compare but stock though

Well according to the numbers it is a superior product.

yea according to numbers. throttle hangs a little though(dallas mustang referred to it as 'accufabish' hang). tps mysteriously broke upon install and i miss the mustang logo on the plenum. Im not saying the number are wrong....just personally i would give it back if i could and get a shifter or something else

Aug 6, 2008 | 06:05 PM

#16

cliffyk

TECH SAVANT

Joined: Dec 2006

Posts: 10,937

From: Saint Augustine, FL

RE: TB and Plenum

The thing is that on a flowbench it can move more air and a given pressure drop, however inthe empirical reality we all must endure that is irrelevant.[/align][/align]A 4.6L 2V n/a engineis incapable ofsucking in enoughair, at anything less that 7500 rpm, for the Accufab's better flowbench performance to matter. As I said above, read this to learn more...[/align][/align]There are a whole lot of things in aftermarket mods that are like this (think CAIs andCOPs). [/align][/align]Yes they aresuperior to OEM or their competitor's products, however that superiority has no practical benefit because the OEM or competitor's offering is already entirely adequate or more than is needed anyway.[/align]