4" Intake mod ?

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Apr 19, 2012 | 01:10 PM

EBM_Z06

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Instructor

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From: Southern Germany

4" Intake mod ?

Hi,

I did a search but haven’t quite found what I was looking for.
What exactly is the 4” Intake mod ? Does this mean 4” tubes on the head unit or TB ?
Is there a upgrade kit available or is this done all custom ?
I have a maxed out A&A V3-Si Kit and wouldn’t mind picking up another pound of boost with that mod.

Thanks ,
Alex

Apr 19, 2012 | 04:13 PM

joshtownsend

Melting Slicks

Joined: Mar 2008

Posts: 2,412

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From: Houston/Dayton Texas

going to the head unit itself. You have to drop the rad and have some cut down. I did the intercooler to the TB in 4 inch as well.. although most wont benefit from it.

Apr 19, 2012 | 05:07 PM

123sugey

Dig

Joined: Jan 2006

Posts: 5,447

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From: Port Saint Lucie FLORIDA & HONDURAS

I did a 4" tube last month on my NA motor from my Vararam to the TB. Basically it woul be the same type of job... Lower the radiator support and trim the plastic cover where the pipe passes over. $30.00 from A&A for the drop spacers and less than $20.00 for a 4" 45 degree tube (for me).

Apr 19, 2012 | 08:34 PM

Milan

Safety Car

Joined: Jan 2008

Posts: 4,797

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From: Boise

Basically you want the straightest inlet to the supercharger head unit as possible. In order to do this you need a dewitts cut down radiator or you need to lower the radiator in another fashion.

Apr 19, 2012 | 08:37 PM

Boosted_C5

Racer

Joined: Oct 2011

Posts: 342

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From: Seymour Indiana

I was wondering what the benefit of this mod was. I have it on my car but I want to sell my mine and get different pipes for a better and tighter fit

Apr 19, 2012 | 10:22 PM

Milan

Safety Car

Joined: Jan 2008

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From: Boise

Benefit is more boost and it fattens up the midrange

Apr 19, 2012 | 11:50 PM

NemesisC5

Le Mans Master

Joined: Dec 2005

Posts: 8,475

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From: Port Arthur, Texas 77642

Quote:

Originally Posted by joshtownsend

going to the head unit itself. You have to drop the rad and have some cut down. I did the intercooler to the TB in 4 inch as well.. although most wont benefit from it.

Same here, my older style A&A intercooler has an oval 4" discharge plumbed through 4" charge pipe.

Apr 20, 2012 | 08:04 AM

EBM_Z06

Thread Starter

Instructor

Joined: Jul 2006

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From: Southern Germany

What I don’t understand is, what benefit would I have from a 4” tubing to the head unit, when the inlet OD on the V3-SI Trim only is 3.5”?

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Apr 20, 2012 | 08:40 AM

joshtownsend

Melting Slicks

Joined: Mar 2008

Posts: 2,412

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From: Houston/Dayton Texas

How exactly is a rainbow made? How exactly does the sun set? How exactly does a positrack rear end on a Plymouth work? It just does.

Apr 20, 2012 | 08:47 AM

#10

DOUG @ ECS

Premium Supporting Vendor

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From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321

Just an FYI, the ECS supercharger kit comes standand with 4" ducting.

Apr 20, 2012 | 09:57 AM

#11

undertaker

Race Director

Joined: May 2003

Posts: 12,725

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From: ECS : WTF did you break now and HTF did you break it this time

Quote:

Originally Posted by DOUG @ ECS

Just an FYI, the ECS supercharger kit comes standand with 4" ducting.

shh now they'll start to know why we've always been faster

Apr 20, 2012 | 11:07 AM

#12

Blitzkrieg

AKA "The CLOWN"

Joined: Feb 2010

Posts: 6,261

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From: Chicago South Suburbs

Quote:

Originally Posted by undertaker

shh now they'll start to know why we've always been faster

I like my 4"

Apr 20, 2012 | 11:10 AM

#13

Boosted_C5

Racer

Joined: Oct 2011

Posts: 342

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From: Seymour Indiana

Quote:

Originally Posted by DOUG @ ECS

Just an FYI, the ECS supercharger kit comes standand with 4" ducting.

Is it also 4" from the blower to the intercooler?
Also I have been trying to get ahold of you Doug, but your a busy man lol. You called me back 1 time but I missed the call and I have not been able to reach you since.

Apr 20, 2012 | 11:21 AM

#14

Blitzkrieg

AKA "The CLOWN"

Joined: Feb 2010

Posts: 6,261

Likes: 13

From: Chicago South Suburbs

Quote:

Originally Posted by Boosted_C5

All of the ducting is 4" on my kit, I'm pretty sure ECS uses only 4" on all there kits!

Apr 20, 2012 | 01:28 PM

#15

Boosted_C5

Racer

Joined: Oct 2011

Posts: 342

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From: Seymour Indiana

Hmmm. Mine is not 4" from blower to IC and ita also all rubber. I have been thinking about hard piping it from blower to IC. Would I gain anything by going 4" from the blower to the IC.

Apr 20, 2012 | 02:07 PM

#16

EBM_Z06

Thread Starter

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Joined: Jul 2006

Posts: 228

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From: Southern Germany

Quote:

Originally Posted by joshtownsend

How exactly is a rainbow made? How exactly does the sun set? How exactly does a positrack rear end on a Plymouth work? It just does.

Okay, good point made

So besides requiring the 2“ shorter Dewitts radiator, what kind of tubing do I require and where can I get it ? I assume there is no upgrade kit for an A&A kit available…