AlexE

re: 951 vacuum lines

I have the diagram of the vacuum lines with the stock cyclic valve that someone made for a stock 951 which is great but...........

The previous owner had a Profec A and Lindsey Racing wastegate installed on the car (no cyclic valve)......... but it does not look quite right to me...

2 questions............

1. Anyone have a diagram with an EBC and dual port wastegate vacuum line routings?.........

2. Any way to simplify the larger lines underneath the intake manifold..... It is a flippen MESS!!!! If you have a picture under the intake I would appreciate it.

Thanks!!

sm

Here's a picture of hoses A, B, and C which make up the "updated" orientation of vacuum hoses under the intake manifold.



A - goes from the intake manifold to the brake booster (or can connect to the plastic connector at the firewall where the current hose coming off the brake booster is connected to)

B - as before, this hose goes from the Idle Valve to the intake manifold

C - this goes from the intercooler pipe to the Idle Valve.

There you have it! I'll get you some part numbers later if you need it. It's time for bed.

sm

Oh, hose C should be flipped the other way.

AlexE

THANK YOU THANK YOU THANK YOU!!!

sm

951-110-223-01
951-110-221-00

That is for hose A and C or vice versa.

Sorry, but I don't have the # for hose B. Give Sunset Porsche of Oregon a call and they will help you out - and give you good prices too.

tjbreen

Does anyone have the part number for the updated hose B? Can someone with a Turbo S or '89 read the part number off this hose that goes from the intake to the ISV?

My '87 has the hose where B is going to the venturi system then to the idle stabilizer valve (old part number is 951 110 215 03). This hose is too narrow to connect directly to the ISV as is required to eliminate the venturi system.

The PET shows the updated part (from the ISV to the intake) as 951-110-221-00 which is part C not part B. My local dealer has ordered this part for me twice and it is not the hose that goes from the ISV to the intake it is hose C (from the intake boot to the ISV).

The PET also shows a hose 951-110-217-01 as the hose that runs from the intake boot to the ISV. This may be the hose I need.

Hose 951-110-221-00 is hose C (reversed)
Hose 951-110-223-01 is hose A (must be cut to intall T)
Hose is hose B

Doc

FYI... if you have a Lindsey WG no need for the cycling valve.