what modifications do you have to make to the M30B35 fuel rail as well as the brontosaurus ribs manifold and do I need a diferent air filter box?
- Thread starter E9inCostaRica
- Start date
E9inCostaRica
Well-Known Member
Thank you Ezz and HB Chris, Just purchased it on ebay at this moment, anyone here on the chat have the oval flanges, grommets, locking clips etc.... I would be happy to purchase
BMW part number for the flange:
I have not verified if those flanges would fit the BMW manifold
zcardepot.com
13641256446
i was also looking for the flanges and I came across the 70’s Datsun that use similar injector setup.I have not verified if those flanges would fit the BMW manifold
Fuel Injector Holder Retainer Plate Stainless 280Z 280ZX
Fuel Injector Holder Retainer Plate Stainless 280Z 280ZX - 650-249 (). New stainless steel injector retainer plate for Datsun 280Z and 280ZX, 1975-83.
zcardepot.com
E9inCostaRica
Well-Known Member
Interesting. Will try to find out dimensions. Thanks
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E9inCostaRica
Well-Known Member
Good afternoon gentlemen, so after carefull thought I decided to use the M30 B35 injection tube (fuel rail) instead of the E12 one on my C banana ribed manifold, here is an update on what I've done so far in order for my M30B35 fuel rail as well as the injectors to fit properly.
In the bottom parts of the manifold We had to bore out the center part of the hole where the injectors fit to 12mm in order for the M30B35 injector tip to fit in well and fully, also left the sides of the hole as is in order to acomodate the O-Ring that now sits and fits in snuggly and completely in its 14mm diameter hole. Because of the angle we had to make a tool to bore out the holes (picture 1 and 2)
The injectors had to be fit with a metalic center belt that the oval brackets now hug in order to hold properly to the lower parts of the manifold (picture 3).
We had to make metal holders in order to hold the injection tube to the oval brackets (picture 4).
When we fit in the upper part of the manifold, the injection tube did not fit in well as it touched the inner part of the upper manifold, this happens because of the angle of the position of the injectors, therefore we had to cut the injection tube and angle it so that the upper tips of the injectors would fit properly into the tube holes, this left a very small but confortable space for the tube to fit in properly without touching the upper part of the manifold (picture 5).
We also had to cut out the pressure regulator bracket and extend the tube in order to reaccommodate the pressure regulator to the side (picture 6).
The tube itself will need to be properly fixed for cosmetic purposes.
All in all it's been a fun couple of days trying to get this thing to work properly. Please remember that I am doing this only to get the look of the 3.0 CSI motor when I open the hood, in other words to keep it looking more like an original E9. The 3.5 M30 motor obviosly does come with it's very own manifold, tower or wedding cake style that can be used without any mods.
Hopefully this will help any other member from the Forum that is interested in using the C style manifold instead of the tower manifold.
In the bottom parts of the manifold We had to bore out the center part of the hole where the injectors fit to 12mm in order for the M30B35 injector tip to fit in well and fully, also left the sides of the hole as is in order to acomodate the O-Ring that now sits and fits in snuggly and completely in its 14mm diameter hole. Because of the angle we had to make a tool to bore out the holes (picture 1 and 2)
The injectors had to be fit with a metalic center belt that the oval brackets now hug in order to hold properly to the lower parts of the manifold (picture 3).
We had to make metal holders in order to hold the injection tube to the oval brackets (picture 4).
When we fit in the upper part of the manifold, the injection tube did not fit in well as it touched the inner part of the upper manifold, this happens because of the angle of the position of the injectors, therefore we had to cut the injection tube and angle it so that the upper tips of the injectors would fit properly into the tube holes, this left a very small but confortable space for the tube to fit in properly without touching the upper part of the manifold (picture 5).
We also had to cut out the pressure regulator bracket and extend the tube in order to reaccommodate the pressure regulator to the side (picture 6).
The tube itself will need to be properly fixed for cosmetic purposes.
All in all it's been a fun couple of days trying to get this thing to work properly. Please remember that I am doing this only to get the look of the 3.0 CSI motor when I open the hood, in other words to keep it looking more like an original E9. The 3.5 M30 motor obviosly does come with it's very own manifold, tower or wedding cake style that can be used without any mods.
Hopefully this will help any other member from the Forum that is interested in using the C style manifold instead of the tower manifold.
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