I'm considering changing my intake manifold from the older type to the newer (2001.5+) type. Does..

JasonS4+Festicle · 06-23-2005, 07:12 AM

anyone know exactly what is involved?

Benefits other than getting rid of the F-hose?

I've read that the design is better with a lower ceiling which concentrates the flow to the better velocity stacks (per a post from Blitzkrieg some time back). Also, I read that there is a better runner setup.

When I tear my car apart for a new timing belt this summer, I'm installing phenolic intake manifold spacers so this would be the best time to do it.

How much work is involed?

SAC-CA-GTI · 06-23-2005, 07:43 AM

keep in mind there are different types of newer intake manifolds. DAP knows all the little codes and such. But there are two different types of newer intake manifolds. You want the one off a TIP Allroad 00-02 being if you just get a new manifold you will have to cut the back of the manifold where the vent system hooks up to it and resolder/weld a plate in and tap in some new hose connections. On the AR TIP manis they are already there and it's a bolt up (kind of). There is some plumbing that needs to be rerouted from the little spiderhose cannister. But I think I have that solved. Like I said, I will be taking plenty of pictures and part #s, parts needed, etc. I will be doing it July 4th weekend for my relaxation. I'll be doing phenolics also. Along with an EFK, finishing my IC mister kit, new plugs, and p/p tb to match the mani. I'll keep ya posted.

DAP@EPL · 06-23-2005, 07:54 AM

There are 3 different 2.7T manifolds. All begin with the part number 078 133 201 but they have different suffixes.

AE suffix = 2000 & early 2001 six-speed (the "bad" one)

AC suffix = 2000 tiptronic and early A6/allroads. Best upgrade for those with the AE manifold. Vacuum ports match up with the AE model but the runner/plenum design is the newer style.

BC suffix = 2001.5 S4 and later A6/allroads (both six-speed and tiptronic). This isn't as easy to use as an upgrade for the AE since the vacuum ports are different. You'd need to modify the back of the manifold to make it work in a 2000/early 2001 car.

-Dave Pramanik

Mike2kS4 · 06-23-2005, 07:57 AM

You won't need anything but the mani and gaskets if you use the AR one. The brake booster line is a bit snug. My homemade F-Hose lives on in this configuration.

No need to do it with the timing belt: there's virtually no overlapping labor there. Ok, maybe 5min to take off the bipipe.

Mike2kS4 · 06-23-2005, 07:59 AM

AntiSocial · 06-23-2005, 08:03 AM

JasonS4+Festicle · 06-23-2005, 08:03 AM

Also, I'm installing phenolic intake manifold spacers when the car is all apart so doing it at that time should save some time.

Captain Matt, I be · 06-23-2005, 08:04 AM

JasonS4+Festicle · 06-23-2005, 08:04 AM

GDJT Allroad^2 · 06-23-2005, 08:07 AM

more bang for the buck. As long as I have a samco or mtm or piggie setup I can live with an fhose (IMHO.)

06-23-2005, 07:12 AM	#1
JasonS4+Festicle Senior Member Account #: 36810 Join Date: May 2002 Posts: 7,229	I'm considering changing my intake manifold from the older type to the newer (2001.5+) type. Does.. anyone know exactly what is involved? Benefits other than getting rid of the F-hose? I've read that the design is better with a lower ceiling which concentrates the flow to the better velocity stacks (per a post from Blitzkrieg some time back). Also, I read that there is a better runner setup. When I tear my car apart for a new timing belt this summer, I'm installing phenolic intake manifold spacers so this would be the best time to do it. How much work is involed?

06-23-2005, 07:43 AM	#2
SAC-CA-GTI Senior Member Account #: 42872 Join Date: Sep 2002 Posts: 8,320	I'll tell you after next weekend. I can then tell you exactly what is needed then. However... keep in mind there are different types of newer intake manifolds. DAP knows all the little codes and such. But there are two different types of newer intake manifolds. You want the one off a TIP Allroad 00-02 being if you just get a new manifold you will have to cut the back of the manifold where the vent system hooks up to it and resolder/weld a plate in and tap in some new hose connections. On the AR TIP manis they are already there and it's a bolt up (kind of). There is some plumbing that needs to be rerouted from the little spiderhose cannister. But I think I have that solved. Like I said, I will be taking plenty of pictures and part #s, parts needed, etc. I will be doing it July 4th weekend for my relaxation. I'll be doing phenolics also. Along with an EFK, finishing my IC mister kit, new plugs, and p/p tb to match the mani. I'll keep ya posted. __________________

06-23-2005, 07:54 AM	#3
DAP@EPL Audiworld Sponsor Account #: 6924 Join Date: Jun 2000 Posts: 19,701	Looking forward to that writeup. Manifold part numbers: There are 3 different 2.7T manifolds. All begin with the part number 078 133 201 but they have different suffixes. AE suffix = 2000 & early 2001 six-speed (the "bad" one) AC suffix = 2000 tiptronic and early A6/allroads. Best upgrade for those with the AE manifold. Vacuum ports match up with the AE model but the runner/plenum design is the newer style. BC suffix = 2001.5 S4 and later A6/allroads (both six-speed and tiptronic). This isn't as easy to use as an upgrade for the AE since the vacuum ports are different. You'd need to modify the back of the manifold to make it work in a 2000/early 2001 car. -Dave Pramanik __________________

06-23-2005, 07:57 AM	#4
Mike2kS4 Elder Member Account #: 38083 Join Date: Jun 2002 Posts: 12,105	I swapped mine over... Right before the TBelt mishap (D'oh) You won't need anything but the mani and gaskets if you use the AR one. The brake booster line is a bit snug. My homemade F-Hose lives on in this configuration. No need to do it with the timing belt: there's virtually no overlapping labor there. Ok, maybe 5min to take off the bipipe. __________________ 2002 S4 Avant, 6spd. Bone stock. <a href="http://www.autospeed.us"> </a> Caveat: Any advice I express regarding potential tuning and such is purely informational. If your knowledge and abilities are not up to the task, no amount of advice can assist.

06-23-2005, 07:59 AM	#5
Mike2kS4 Elder Member Account #: 38083 Join Date: Jun 2002 Posts: 12,105	Oh, and the AR one has an extra port I used to directly plumb the boost gauge/avcr tap :) __________________ 2002 S4 Avant, 6spd. Bone stock. <a href="http://www.autospeed.us"> </a> Caveat: Any advice I express regarding potential tuning and such is purely informational. If your knowledge and abilities are not up to the task, no amount of advice can assist.

06-23-2005, 08:03 AM	#6
AntiSocial Member Account #: 45666 Join Date: Nov 2002 Posts: 8,514	Do you have to redo the heads or did it just skip a tooth? __________________

06-23-2005, 08:03 AM	#7
JasonS4+Festicle Senior Member Account #: 36810 Join Date: May 2002 Posts: 7,229	thanks - pardon my ignorance - what is the "AR" one - AR?..... Also, I'm installing phenolic intake manifold spacers when the car is all apart so doing it at that time should save some time.

06-23-2005, 08:04 AM	#8
Captain Matt, I be Elder Member Account #: 26545 Join Date: Oct 2001 Posts: 32,092	allroad, sir :) __________________ Support Innovation for the B5 Platform - www.autospeedperformance.com www.vastperformance.com B5 S4 Forum Cliff's Notes B5 S4 RNS-E Nav+ Installation

06-23-2005, 08:04 AM	#9
JasonS4+Festicle Senior Member Account #: 36810 Join Date: May 2002 Posts: 7,229	never mind - Allroad - hadn't read the post below.

06-23-2005, 08:07 AM	#10
GDJT Allroad^2 Senior Member Account #: 55702 Join Date: May 2003 Posts: 7,863	I'd rather waste the time and effort on porting and polishing the old manifold... more bang for the buck. As long as I have a samco or mtm or piggie setup I can live with an fhose (IMHO.) __________________ People post here [AWOT] regularly declaring problems and asking for solutions. We, as a team, synthesize creative and effective solutions as well as expound on other similar personal experience and wisdom gained. We learn from one another and by being exposed to a variety of solutions and thought processes we are able to expand and apply different methods of ratiosynation to other problems and processes we encounter outside of AWOT. In short we get smarter from AWOT.

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