Intake plenum and 911 throttle body

[Gelbster]

Originally Posted by thefunkygibbon

so 4 years on and it still isn't available to buy or have any dyno results etc? crazy

Instead of denigrating the efforts of Ben, why not offer some suggestions of how to improve his product or development process ?
We need more talented, motivated and generous members like Ben to support the Boxster. with after market products. Snarky comments are unlikely to encourage such helpful members.
Big companies are not going to create such products for such a small, declining market so THANK YOU BEN !
Yes, I was one of his first customers and the product works perfectly and was great value.
So I am a grateful, biased user .

[maytag]

Originally Posted by Gelbster

Big companies are not going to create such products for such a small, declining market so THANK YOU BEN !

THIS. a hundred times this.

I've got Ben's shifter, and I'm looking forward to his improvement to it becoming available.
I'll likely be lined-up when the plenum is available as well.


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[Tomikaze]

What they said. Ben’s customer service alone has me sold on his products

Originally Posted by maytag

THIS. a hundred times this.

I've got Ben's shifter, and I'm looking forward to his improvement to it becoming available.
I'll likely be lined-up when the plenum is available as well.


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[Ben006]

Thanks guys for the support
I don't think he was serious, but I think I made pretty good progress in 4 years !
The plenums are available (and carbon fiber!), there's two coming in the US with Uniwerks Design !

I'm not a student anymore, I moved back home and I'm a full time Porsche tech, and doing my stuff the rest of the time

There are three plenums left, two that will arrive at Uniwerks Design soon, and one here with me.
Ten more are coming. I'll try a new thing for the AOS tube soon.

I found a guy to dyno the car... now the hard part is to find the time !

Talking of plenum, I recently made one for my 928 !
It's just a prototype for now, but looking pretty good already !


Thanks again to all of you


Ben

[Smallblock454]

Hi Ben,

a little idea for improvement. The both ends of the T that lead to the hoses should have a little hump, so that the hoses can't get of the tube.

Another question: how is the T formed inside? Is there an air guidance?

Where are you located in France? I saw your video driving on Auneau Du Rin. If you live near there maybe i can help with searching a dyno near the border in Germany.

Regards, Markus

[Gelbster]

"i can help with searching a dyno near the border in Germany."
Well done Markus ! That is the best of this Forum - helping each other :-).

[Ben006]

The previous 3D printed ones had the small humps you describe, but after trying with and without, it doesn't do much. They were good to help the porous 3D printed parts with sealing, but on the CF part, there is no problem at all

The inside of the plenum is a regular T shape, with larger radiuses to improve flow.
I didn't use a Y shape for various reason.

I live in the south, on the Riviera
Which video was it ? Because I never went (unfortunately for me ^^) on Anneau du Rhin.

I go back on track in two days ! Hopefully the gopro stays in place more than 5 minutes this time ! ^^

[Ben006]

A small track in the south of France.
"Le Luc"

I'll post a video

[Ben006]

Hi guys !

The first two plenum have finally landed in the US !
Available here : https://uniwerksdesign.com/product/porsche-986-carbon-fiber-intake-plenum/

There're ten more coming by early July.

I have to do an oil change on the Boxster and I'm off to the dyno, I contacted the guys and we agreed on how to do it.

I'll do two passes (after driving for half an hour, so everything is already up to temp), swap the plenums on the dyno, then do two other passes. That's the most accurate way of doing it without spending a full day on the dyno...

In the future I'll get it tuned too, we might see a good increase in HP there too !


Ben.

[Meir]

Originally Posted by Ben006

Hi guys !

The first two plenum have finally landed in the US !
Available here : https://uniwerksdesign.com/product/porsche-986-carbon-fiber-intake-plenum/

There're ten more coming by early July.

I have to do an oil change on the Boxster and I'm off to the dyno, I contacted the guys and we agreed on how to do it.

I'll do two passes (after driving for half an hour, so everything is already up to temp), swap the plenums on the dyno, then do two other passes. That's the most accurate way of doing it without spending a full day on the dyno...

In the future I'll get it tuned too, we might see a good increase in HP there too !


Ben.

Very nice Ben.
and fairly priced if i might add.
keep the good work.

[Spyder_Man]

Add me to the list of individuals eager to see the dyno results for using this intake kit both without and with a tune.

[Ciao]

Originally Posted by Ben006

Hi guys !

The first two plenum have finally landed in the US !
Available here : https://uniwerksdesign.com/product/porsche-986-carbon-fiber-intake-plenum/

There're ten more coming by early July.

I have to do an oil change on the Boxster and I'm off to the dyno, I contacted the guys and we agreed on how to do it.

I'll do two passes (after driving for half an hour, so everything is already up to temp), swap the plenums on the dyno, then do two other passes. That's the most accurate way of doing it without spending a full day on the dyno...

In the future I'll get it tuned too, we might see a good increase in HP there too !


Ben.

My interest is growing; rightly priced! Let's see the dyno

[Ben006]

I'm waiting on the new oil...
I decided to switch to a thicker 10w50 oil, but haven't received it yet.

I can not wait to finally know how much gain there is !

I've been running the 74mm on the 2.7 and the 3.2 for a few years now, I know it performs well, but putting an actual number on it will be awesome !

[Ben006]

I should receive the oil tomorrow !
The car is already on the lift and empty

Getting its new coilovers too !

[Robert986]

Hi all, let me start by saying that I really admire this work, love it!

I am in the middle of my Winter-projects, got a 987 airbox incoming, 987 MAF on order, 996-TB. I´m torn between the 997 plenum and Bens beautiful creation.. If I where to keep the standard airbox/MAF I would not hesitate, but with the 987-airbox the MAF will end up just behind the oil cooler. Anyone knows how this would line up with the angle of the Ben-plenum? I realise that the kit won't work, maybe there should be another kit for us who wants to go further and add the 987-box? Any thoughts? :dance:

[Ben006]

Hi !
Thank you for your comment

The kit will work with the 987 airbox and MAF housing, I have at least two customer doing the same thing, one on a 986 2.7 and the other on a 550 edition (which has a 987 airbox from the factory).
You will just need to find the correct intake tube to connect the two. If I remember, a long 45° silicone elbow works.

By the way, the new version is out, and it features a quick disconnect to reuse the factory AOS hose, making the installation simpler and getting rid of the silicone hose I was using previously



And the 996 Version will be there in 2020 !



Ben

[Robert986]

Thanks for the answer Ben, good to know it will work with the 987-airbox. I do Believe your plenum is better then the 997-plenum (that I have considered) since it enables a smoother overall bend.

I sent you a pm btw!

[rfuerst911sc]

Hey Ben what's the possibility of making intake manifolds that are sized like the 996 but with the bolt pattern of a 986 ? The increased size of intake plenum and throttle body would be enhanced by the larger runners of the 996 . And by making the mounting foot print the same as existing 986 eliminates the drilling of the heads . Just a thought to expand your catalog of parts

[Robert986]

Originally Posted by rfuerst911sc

Hey Ben what's the possibility of making intake manifolds that are sized like the 996 but with the bolt pattern of a 986 ? The increased size of intake plenum and throttle body would be enhanced by the larger runners of the 996 . And by making the mounting foot print the same as existing 986 eliminates the drilling of the heads . Just a thought to expand your catalog of parts

I had the exact same thought, just two thoughts on this topic:

1) On the 996 intake there are aluminium "runners" 99611010152 between the plastic part and the engine, I honestly don´t understand why, however, a custom intake would then need to cover also the alu part to get the 986 bolt pattern. Actually, to adress the bolt pattern issue only the 99611010152-part with custom bolt pattern would need to be made.
2) I think that the "real" issue with the 996 intake is that it does´t fit in the bay without lowering the engine quite a lot.. So if this could be adressed while maintaining the flow characteristics of the 996 part you would have a winner!

Quite a big/complex part to manufacture i guess..

[Ben006]

You would have to port-match the heads too... pretty expensive job.

To me, it's not worth it.
Though if you really want to I'm able to make the spacers to fit the 996 intake on to the 986 heads.
With a 987 engine cover it should fit.

But then, without camshafts and a proper tune I don't think it's worth it :/