C&L Plenum

jrc_03_gt

New Member

Jan 1, 2004

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Feb 5, 2004

#1

• Feb 5, 2004

• #1

Can a C&L plenum and a upgraded throttle body improve performance with the stock intake ductwork still intact? Do you have to have a cold air intake to get the most out of it? I only have K&N air filter and 40 series flowmasters for my current mods. Is it a waste of money if I dont plan on doing lots of other mods? C&L claims 9-14 hp gains then another 4 hp with upgraded throttle body. The C&L ad is in the new pro 5.0 and super fords mag. Is this worth my time and money with just the few mods I have? Does the computer need to be reprogramed?

 

Beau

Founding Member

Jan 29, 2000

3,050

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0

San Diego

Feb 5, 2004

#2

• Feb 5, 2004

• #2

i have only the K & N FIPK on my car and i have the plenum on and it is a noticeable increase..i am waiting for my accufab 75mm tb to arrive..

 

JonJon

Founding Member

Aug 16, 2002

4,801

1

68

back in Marylands

Feb 5, 2004

#3

• Feb 5, 2004

• #3

i got the plenum, didn't notice anything
but my SOTP sucks.

getting an 75mm tb in a week or so. then going to dyno.

 

forpit2000gt

Founding Member

Jun 30, 2002

2,490

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Columbia, SC

Feb 5, 2004

#4

• Feb 5, 2004

• #4

any CAI will net very little if any. The plenum and TB are proven in the dyno tests. Gears will give you the most SOTP feeling .

 

M

mean2001gt

New Member

Jan 27, 2004

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danville, ca

Feb 6, 2004

#5

• Feb 6, 2004

• #5

i got just the plenum and didn't really notice much of a difference. i have a 70mm throttle body, maybe that why. having a cai won't give you any more noticiable difference with the plenum, although i do have a trueflow pipe on the way (and if you see my torque numbers bleow, you'll understand). i'd say the whole setup, plenum and 75mm throttle body, may be worth 5-7 rwhp on a fairly stock car.

 

C

clarkjr

Founding Member

Oct 22, 2000

716

1

19

NC

Feb 6, 2004

#6

• Feb 6, 2004

• #6

It would be more beneficial if you at least had a K&N filter.

 

mogs01gt

Founding Member

Jul 22, 2002

3,113

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119

Ohio

Feb 6, 2004

#7

• Feb 6, 2004

• #7

every little bit helps I guess. I would atleast get a mid pipe after words.

Ronnie can help ya out.
http://www.rdmrdm.com/

 

C

clarkjr

Founding Member

Oct 22, 2000

716

1

19

NC

Feb 6, 2004

#8

• Feb 6, 2004

• #8

Oops, you do have a K&N (just saw your sig).

 

jrc_03_gt

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Jan 1, 2004

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Feb 6, 2004

#9

• Feb 6, 2004

• #9

what is a mid-pipe?

 

mogs01gt

Founding Member

Jul 22, 2002

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Ohio

Feb 6, 2004

#10

• Feb 6, 2004

• #10

H or X pipe.

goes between your manifolds and catback.

 

jrc_03_gt

New Member

Jan 1, 2004

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Feb 6, 2004

#11

• Feb 6, 2004

• #11

ok I know what h & X pipes are just did not know them as mid pipes. lol!

 

2

2000GT

Founding Member

Nov 30, 1999

222

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Feb 6, 2004

#12

• Feb 6, 2004

• #12

mean2001gt said:

i got just the plenum and didn't really notice much of a difference. i have a 70mm throttle body, maybe that why. having a cai won't give you any more noticiable difference with the plenum, although i do have a trueflow pipe on the way (and if you see my torque numbers bleow, you'll understand). i'd say the whole setup, plenum and 75mm throttle body, may be worth 5-7 rwhp on a fairly stock car.

Click to expand...

I am assuming your numbers are not SAE corrected unless you have every possible bolt-on + a good tune.

 

downsouthman1

Member

Dec 16, 2003

643

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Texas

Feb 6, 2004

#13

• Feb 6, 2004

• #13

I have a Mac CAI feeding the Accufab 75mm TB & C&L Upper Intake Plenum. I can't say for sure whether or not the CAI helps since it was the 1st of my intake mods. But I most def saw a noticeable increase when the TB/Plenum combo was installed. W/ 4.10s I can burn rubber all the way through 2nd.

 

2

2000GT

Founding Member

Nov 30, 1999

222

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Feb 6, 2004

#14

• Feb 6, 2004

• #14

downsouthman1 said:

I have a Mac CAI feeding the Accufab 75mm TB & C&L Upper Intake Plenum. I can't say for sure whether or not the CAI helps since it was the 1st of my intake mods. But I most def saw a noticeable increase when the TB/Plenum combo was installed. W/ 4.10s I can burn rubber all the way through 2nd.

Click to expand...

Are you saying the you couldn't burn rubber through 2nd without the TB/plenum combo?

I'd think 4.10's would take care of that.

 

nickthegenius

Active Member

Dec 23, 2002

1,631

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38

Elwood, IN

Feb 6, 2004

#15

• Feb 6, 2004

• #15

I had the Accufab 75mm TB and C&L Plenum for a short time with the stock rubber intake tube. It still felt much stronger even with the stock tube on there. The only thing is its a PITA to get that tube to fit onto the bigger throttle body.