DER951

If this is still open, I would like a 5 port also.

Being new to this, do you pm for mailing address? Is payment by check, paypal or ?

Thanks,

David Floyd

I will take a 4 port

macnewma

If it isn't too much trouble, I will take a 5 port.

Thanks for all the work Laust!

Max

Laust Pedersen

1st batch of 9 is done. The following is a list of requests I have gotten. I’ll be contacting each of the first 9 via PM shortly asking for an address and payment (PayPal or check).

1st batch
name …… port preference
Hosrom ….…. 5
Eyal ……....... 5
Ivai ……..…… 5
84balck944 … 5
Darius …….... 4
Theedge ……. 5
Epic2112 …... 5S
Magown ……. 5
D.Floyd ……... 4

2nd batch (should be done in less than 2 weeks)
Sufnituning …. ?
Crazy Eddie ... 5S
9fitty1 ……..…. 5
MPD47 ……..… 5
DER951 …...…. 5
Macnewma ….. 5
* S indicates presence of two banjo bolts

To answer a few questions:
Sure, the 5th hole can be plugged without any effect on the other ports.

Probably the best way to handle the S models, is to drill another cross hole (for the extra banjo-bold), which also needs to be ground in the center to provide air passage around the bolt.
I have no easy access to a post 88.5 model and will ask Epic2112 and/or Crazy Eddie to please measure the spacing between the two bolts preferably with a tolerance of +- .010” and I’ll drill the extra hole in the proper location. I assume (and believe) that the first banjo bolt is at the same location as on prior models.

NZ, Opened a can of worms? Nah, it’s a can of quattro- and penta-pedes.

Laust

Laust Pedersen

As to the flow characteristics I think a cross sectional ID listing should suffice:

Banjo bolt: Hollow Ø0.163, 3- holes for each banjo nipple: 3x Ø0.123
Vacuum Manifold: X-hole: Ø0.240”
Nipples: 5x Ø0.099” (*later versions are Ø0.120”)
Hard plastic vacuum line: Ø0.078”
All tabulated here:
feature ................. outlets ...... diam ...... area
BB center hole ......... 1 ........... 0.163 ...... 0.021
BB cross hole ........... 3 ........... 0.123 ...... 0.036
VM cross hole .......... 1 ........... 0.213 ...... 0.036
VM output holes* ..... 5 ........... 0.099 ...... 0.038
Vacuum line ID ......... 6 ........... 0.078 ...... 0.029
BB = banjo bolt; VM = vacuum manifold

As seen the banjo bolt services 6 vacuum lines with a total cross sectional area of 0.029 square inches, which all the features support (greater area), except the center hole of the banjo bolt. Drilling it up to 0.192” ID will give a cross sectional area of 0.029 square inches. I drilled mine to 0.200”, but only just past the first 3 x-holes.
Cars with two banjo bolts do not need to have them enlarged.

Laust

hosrom_951

Laust: PM me your adress because i would be sending you a check since there is no paypal here, you should recieve the check in 3-5 days. Kindly quote me as well for the USPS Express service as well (3-5 day service) to Dubai, United Arab Emirates

DDP

Awesome thanks. I will need you to send me your address also.

SERGEYINDAVIS

Hi,

I'm new here, and I am curious, what are the advantages of this thing ? I have an 88 Turbo S with the 2nd vaccum bolt in the intake manifold going into the FPR.

hosrom_951

SERGEYINDAVIS: Read the first page ( or 2) about the functions in details. It basically allows more vacuum lines to connect to the intake manifold, improving response, aid identifying vacuum leaks better and so on....If you noticed, the Turbo S have two vacuum ports on the intake manifold, earlier cars had just one, so even Porsche saw an advantage with this........

cheetah chrome

I'll take a 5 if you are still taking orders... Just PM me where to send the paypal.

Madant26x

Hey Laust, awesome idea, you can count me in too on one of these, I'll take a 5 port for a Turbo S manifold. Thanks.

David Floyd

PayPal sent

Madant26x

Also, could anyone possibly make up a diagram for how the vaccum line routing should be done when installing one of these?

schnellfahrer

I'd like one to. Any chance?
86 951.

tazman

Hi Laust I would like one as well. I will email you on the details.