Hello all!

My 72 XKE 7-liter engine is installed and running.
Has anyone done a custom stack EFI setup for the v-12s?

I know 2 were done in california, but XKS Unlimited didn't tell me who.

Thanks!

John

 

Last time I was looking at this myself, it was offered by Borla Induction.
https://www.borlainduction.com/
However, I don't find any mention of it now. Can't hurt to contact them however.

 

Here is someone who did EFI, supercharger and NOS. A little over the top but interesting: 1969 Series II Jaguar E-Type XKE 2+2 4.2 - European Car Magazine

 

It's ridiculous in this day and age of US Gov antigravity planes and UFOs and such that folks are still bolting on 6x2 barrel webers to V12s.
Old school cool, yes, but nuts.
The V12 was designed for injection from the get-go anyway.
I do know that Aston Martin Heritage has some side draft weber-looking EFI units now.
I wonder if they can be used as downdraft units?

Great Nelson's Guns! If I have to develop a stack EFI kit for our V12 Jags I will.
JWW

 

From what I understand, Borla Injection bought Weber specifically to make the Weber carb a throttle body. It was expensive back when it was on their site, but I am positive that they did offer it.
I never followed through, but there also is(was) a guy in Maine that was converting the Stromberg to a efi unit using GM throttle body injection. It was a really neat set up, yet tested only on a TR6. Worked great from all I ever read. Increased fuel mileage by 30-40%, instant cold starts, etc. With little effort, could be done without any real external changes for a original look.

 

Here is the website that sells weber-style EFI:

https://foxinjection.com

 

Heres the image...

 

Jenny has a set up for V12s!
Its sold thru Fox.
JWW



Jenvey Dynamics, the world’s leading developer and manufacturer of fuel injection throttle body and induction systems, has just announced a brand-new product that promises to revolutionize the aftermarket classic and retro automotive markets.

Completely designed and manufactured in-house by Jenvey, the new Heritage Throttle Body has been developed with Aston Martin specialist GTC Engineering and boasts all the plus points associated with Individual Throttle Bodies (ITBs), yet manages to marry these with the subtle, understated looks of a period carburetor – ensuring that it won't look out of place in the engine bays of classic and retro vehicles.

 

Heres the link to Jenvey UK.

https://www.jenvey.co.uk/products/#classic-cars

 

Fox sent me these photos.
JWW


Message:
Hi John,
Yes, they will work for the V12, as I have one in the shop I'm putting together for a customer's custom build.
The straight 6 has no intake that I know of for downdraft, but are available for the classic sidedraft install.
See attached pics.
Also check out my youtube channel, which is linked to the site.
This was a very one-off special build for an XJ13.
Hope this helps out a bit.
Thanks for asking.
Fran Olson
FOX Injection

 

You maybe able to track this guy down.

 

Manifolds:


On the intake I got this from my supplier, Pierce Maniolds.
I am not sure but it might be a bit shorter than the ones available years back.
Keeping them short is tough.
The crossram is a good piece as it helps with torque, but the dizzy is in the way.
I usually toss that anyway and go with totally new ignition, which solves another problem these great engines.
Cooling was another issue but that's an easy fix.
Fran

 

Here's mine the air boxes and filters are off at present. We have one in the UK on a 6.1 HE making 440 RWHP.

 

 

That's impressive, lot of power and it is still a really pretty engine. Nice work!

 

We are up and running with the Jenvey system.
All work done by White Post Restorations, VA.
462 bhp on the Dyno. At the crank. 531 ft lbs torque.
7 liter, EFI cams. 10:1 pistons. Pump gas.
Smooth acceleration from 850 rpm. Excellent drivability. Could pull out a decent size tree stump.
Headers, Jet Hot coated, and stainless sport exhaust. Sounds like a Can Am car. Bitchin.
Lights up the rears at 2800 rpm. HD clutch for Big Block Chevy installed.
High performance drilled discs. Fosseway.
Runs like a scalded cat!!!

 

Hmmm...what about nitrous?
Nahhh

 

Hi Fran,

Thanks for sharing this. What cams are you running, what work was done to the heads and which ECU did you use?

Cheers
John

 

Heads were mildly ported.
Cams are Jag EFI grind. Classic Jaguar. TX
The ECU came with the Jenvey kit.

The car feels like a 427 Cobra with a mild tune.
More comfort, and its a JAG.
JWW

 

Damn now I wish I had a V12 so I could try this. Nice work!