Mounting shorter injectors.

[Kvasi]

Going for some more power and just got my new injectors home. Turns out they are about 10mm shorter than the stock ones, and that means fabbing adapters to get the fuelrail mounted.
Been there and have any advice to share?

[stamar]

please show a picture of this.

It is extremely unlikely they are compatible even if you make an adapter.

[Kvasi]

please show a picture of this.

It is extremely unlikely they are compatible even if you make an adapter.

Why?


Of course its doable, and ill prove you wrong in a few says..

[Gregs///M]

The fuel rail should mount to the injectors still but it wont bolt up to the intake manifold anymore. You can extend the mounting flange with some 1/8inch aluminum with holes for the 4 mounting holes.

Should not be too hard if your good with metal and have the tools.

[stamar]

Why?


Of course its doable, and ill prove you wrong in a few says..

cool can you show a picture of what youre talking about?

[Kvasi]

cool can you show a picture of what youre talking about?

Will post pics when i get on with mounting.

Plan is to make aluminium with 2 x 45degree bends and some of theese to make shure i dont bend the injectors, since the fuelrail seems to be where wheere it bolts to the intake originally.

Anyone know what size on those bolts, so i can by them before i pull things apart? M6 i guess?



Have this shop at hand, so it should be doable :) http://www.maskineringas.no/maskinering/

[Kvasi]

Made another choice when i had it apart;

Five-O 650cc (going in) vs Audi S6 300cc (going out)


First some testcutting


Then cutting


Made theese from alu, they now sit between fuelrail and intake


And the injectors in place

[JrCamacho]

well played sir.

[BergerNJ]

game. set. match.



impressive yet simple work dude

[TobyB]

Of course, you checked to see that they were the right impedance first...

heh.

t

[Kvasi]

Of course, you checked to see that they were the right impedance first...

heh.

t

Yep :)

[Kvasi]

In case someone else should have a go at shorter injectors, keep on reading :)

Didnt see this coming, we have a collision


First some rethinking, then some redoing.





Made extenders



At their place in the fuelrail



And finally

[Cabriolet]

heh, saw the interference issue coming.
so you went though all this work of milling and such all to end up with the same overall size injectors? why not just buy the right size to start, and not put another possible failure spot in the system?
and you might hit the head with the injector rail.

[Kvasi]

No i did it to get larger (cc) injectors. Got theese cheap and i like working out problems, so thats why i did it.
Everything is now in place and works perfect.

[bmwstudent]

Problem solving leads to large brains. Nice job on the mod Kvasi.