My EFI conversion method

[jpnovak]

No problem on the questions. There are many that do not understand EFI installations and converting while mix and matching various systems and components.

Jesper,

Yes, this could be an easy way to run a secondary injector setup. I am not sure if the Carrera manifold would clear the rear deck with an intercooler when mounted on top of some blocks. Maybe if you cut and rotated the throttle body. But then you are doing enough custom work you might as well weld some bungs in place.

The idea for this adapter is to make EFI integration as simple as possible with as little hardware changes as possible. Thanks for the compliment.

[jpilcher]

This is a great solution. I was wondering if anyone has ever attempted this.
Are the existing brass fittings pressed out or just drilled larger to accept the bung?
Is it better to go with 11mm bung or 14mm bung. Guess it depends on type of injector to be used.

[jcc911]

Crap, and I just sold my spare set to speedy! Oh well....

[Speedy Squirrel]

Originally Posted by jcc911

Crap, and I just sold my spare set to speedy! Oh well....

JCC911, now you made me feel bad! If it is any consolation, yours are staying stock. I kept all my other stock stuff in the event a stock 930 becomes stratospherically valuable some day.

By the way JCC911's blocks have cracks (which he of course told me about before the deal), so that, plus Chris' comments re-affirm my statement not to bore them out.

[jpnovak]

Originally Posted by jpilcher

This is a great solution. I was wondering if anyone has ever attempted this.
Are the existing brass fittings pressed out or just drilled larger to accept the bung?
.

The brass insert remains in the holder. It is either drilled and tapped a size larger for my adapters or drilled for direct insertion of the injector.

Either method could be used. My adapter allows for easy home installation. Not many people have the expensive step drill bit to recess the injector as Speedy Squirrel did. I do have this bit for making fuel rails. If you would like some help in that direction let me know.

[jpnovak]

These are finally back from the platers. Ready for an engine near you.

[jpnovak]

[Tippy]

Looks good Jamie! Can't wait to hear someone use these.

[jpilcher]

Where do I sign up?

[TurboKraft]

With the flow rates of modern injectors, and a modern ECU's ability to finely control them, what is the purpose of stacked injectors?

Do you need more fuel than 6x 2,000cc injectors can provide at 5-6bar of pressure?

[jsveb]

Originally Posted by TurboKraft

With the flow rates of modern injectors, and a modern ECU's ability to finely control them, what is the purpose of stacked injectors?

Do you need more fuel than 6x 2,000cc injectors can provide at 5-6bar of pressure?

If your comment is directed towards me suggesting this, you forgot to read my intro: "stupid comment..."

I do however realize ( as stated) things have improved greatly since some of RUFs early work. All one have to do is study some of the exquisite projects on this site...Apart from that, I dont know crap about, what I am talking about

Nice to see you got some time to spend on the forum again

[TurboKraft]

Yup, but not picking on you or anything. :-)
The old-school stacked injectors looked cool, and solved the problem when really large injectors were not available. Who was making 600+hp back then in a road car? Supercars had 450hp!

Just as a point of reference: a 3.8L Twin Turbo can idle perfectly smooth and at a clean 15:1 at 850-900rpm with modern 2,000cc injectors.

[fraggle]

This looks like a fantastic solution. I'll be watching!

[jpilcher]

Any news on these Injector Blocks? I sent Jamie an email about 2 weeks ago no response.

[Tippy]

He left for Germany IIRC on Monday. I believe he will be back next week.