Rick Carter

Hi Mark,
You can have them both for $150.00 plus shipping.

Pizza

WARNING!!!!!! Those of you that are running the Andy Keel kit with the rubber grommets around the injectors beware! While running my car pretty hard (8# on boost gauge, 150+ MPH) I noticed a faint gasoline smell. I instantly shut the car off and coasted to a stop. Then I realized that I forgot to put my fire extinguisher back in my car. Oh Crap!!! When I opened the hood I noticed that one of the injectors were down inside the manifold and gasoline had flowed from the fuel rail all over the engine. I prayed that I wouldn't have to stand helplessly and watch my car burn to the ground (sorry Shane). No fire started. I lucked out this time. I towed it home and did some investigating. The clip that holds the injector onto the fuel rail had slipped off allowing the fuel pressure to push the injector past the top oring seal and through the jerry rigged rubber grommet. I have since had a friend do a solidworks drawing for a bushing to solve this problem. I think Velocity did this already for his car. The injector shoulders up inside the bushing and uses the original bottom oring for sealing. The outer part of the bushing shoulders up on top of the manifold and has a 023oring that seals in the hole where the rubber grommet fits. I'm having one made and will test it for leaks. If it works OK I am having some made on a CNC. If anyone is interested I can either email the solidworks schematic to have your own made or have some made for you in addition to mine for my cost plus shipping.

markgill13

Rick,
I may be interested in the parts. I was able to get the manifolds and I am working to figure out all the pieces that I will need for the whole setup.

Mark

Vlocity

Charles,

How is your rubber grommet replacement coming along. I don't recall what David is doing on the 928 Specialist set up. I am still running the originals.

Regards,

Ken

Pizza

Vlocity,

It's coming along well. I had one made and will test to make sure it shoulders up and seals properly. I have 3 sets that I need to order once I make sure they work (Me, Woody & Hans), let me know if you want in.

I attached a PDF drawing of the bushing. NOTE!!!! This is not a final drawing until I make sure it test!!

DR

Hi Ken,

My Production intake assembly is a totally different animal. The fuel injector location and design is one of the many completely different designs from the old version. We machine "pockets" for the injector along with a rounded recess for o-rings. Once the injector is installed you can't hammer it into the intake (at least in one piece) and even if the fuel injector clips come off it makes no difference at all. We do still recommend installing them just in case for some crazy reason the whole fuel rail were to come loose.

Here are some pics that may help others. The next to last pic shows the intake assembly with "shipping plugs" installed in the Injector pockets. Also as seen in the last pic, our prototype 16V system uses the exact same Injector pocket Design.

Rick Carter

That's a good idea. :-)

Bill Ball

Please add me when you order. Let me know the cost.

Vlocity

Charles.....That looks very well thought out.

Please let me know the results of your test. Do you have a price for a set of 8 determined yet?

Ken

Pizza

Vlocity,

No price yet. The more I order, the less each one will be. I need a count of how many people want a set before I can get an accurate price. The good thing is I'm part owner of an oilfield service company that does a lot of business with this machine shop. They should give me a great price. As I said in my first post about the bushings, I'm not making a nickel on this project but I do expect to be paid before I have them made so I'm not stuck with a bunch of bushings.

Thanks

Jadz928

Charles.
If you need another "short run" machining source, let me know and I'll get you a quote. I have a lot of machinist vendors.

Edit: Let me ask, is it required for this part to be made from aluminum? Could a polymer be used? Obviously one rated for fuel and engine temps.

dprantl

I'm assuming these will fit the M112 manifold also?

Dan
'91 928GT S/C 475hp/460lb.ft

Bill Ball

There is no differnece in the injector configuration.

Bill Ball

Pizza:

I looked over the design. You know that on the stock configuration, there is nothing other than the rail clip that is holding the injectors other than some friction tension on the lower O-ring. If the clip comes off, the injector can fall further in to the manifold and leak. So, the setup that Andy used is not inherently any more dangerous than stock unless the seals he used have deteriorated. They can do so since they are not heat rated. Others have found them to harden over time. They are available from McMaster-Carr. One advantage of Andy's is that you can use Ford injectors w/o changing to lower o-rings. Do we have a good source for the stock (fatter) lower O-rings other than the expensive injector kits?

Pizza

Jadz928,

I'll let you know if I need a short run. You or anyone else feel free to use my drawing if you want to have your own made. Just wait until after I test it. I believe a polymer would work.