ditching heater what about MFI

[svandamme]

i plan to keep em in case i want to go stock again, they will look pretty cool hanging on my wall

[targa911S]

Yea Kurt! Sweet engine compartment! So ...what kind of air filters are those? I have been trying to ditch the stock "elephant" airbox for years. Do tell.

[kstar]

targa:

They're K&Ns - I had never seen the K&N metal tops until I bought that motor.

I like 'em better than the rain shield models and since I live in SoCal I was never too concerned about rain with this motor.

Geeze, all this talk about my former motor is bringing tears to my eyes.

You can find the assembly here:
http://www.knfilters.com/Racing/customcarb.htm

Pic:

Best,

Kurt

[Todd Simpson]

I'd try to fix the oil leaks before I'd consider messing with removing heat exchangers.

[targa911S]

Kurt.

Thanks. I see a change in the future of my engine compartment. Now I did see an MFI in that car right? Was there any special alterations to make them fit or was it right out of the box? part number, link, and all...you da man!

[JSDSKI]

Do a search here on K&N and their filtering properties before dropping the factory filter and housing.

[kstar]

targa:

I think there was some special stuff done to use this type of assembly on the MFI tubes, . . but I did not build this motor and don't know the details.

I think you can use other types of filters with this assembly and not just the K&N type.

Take care,

Kurt

[targa911S]

JSDSKI..yea, your right. I have read those posts. Seems K & Ns just strain out the big chunks ...but they look so cool. It was a weak moment. Thanks I'm better now.
You too Kurt.

[power]

Originally posted by kurtstarnes
Thanks!
There were six individual, very thin, fuel lines that went into the outside of the intake trumpets - I think they were about half-way from the top and bottom - that sprayed the fuel. The very simple electric button switch was installed under the dash and it somehow caused fuel to be delivered into the above mentioned thin fuel line; how this part was accomplished is the critical piece of the puzzle I don't know.
BR,

Kurt

You are describing the factory cold start set up. A lot of people including myself wire a cockpit switch (momentary contact type is best) to control the cold start solenoid that sits ontop of your fuel filter/distributor housing to have more control over it. The solenoid extends downward producing a small squirt of fuel under pressure into a fuel line split into two for each bank then plumbed along the side of each intake. Kinda crude but does the job.

[svandamme]

thought i'de update my own old thread bout the mfi enrichment thingie...

i found a quick and dirty way to do it

1 take off the thermostate from the mfi pump
2 there will be a metal intermediate plate with a round hole in the middle

3 take this plate , lay it on a plastic flat surface

4 put a nut in the hole , one that fits nicely , not to much extra space

5 prepare some JB Weld and put it on the plate so the nut is wel covered, but the threads aren't

6 after the JBweld cured, spray some satin black paint , screw in a long bolt , and prest :







as far as functionality goes , no it's not automatic , and there is no cockpit button or switch.. but the idea to me is , that i should be checking my oil anyway once the car is up and running, so i might as well turn that screw thingie.

it's not something that springs into view , it ain't fluorescant and blends well in with the pumps original look.

[Flying Toaster]

Thats how mine is setup. Grady posted this about a year ago with a little drawing. I welded up a mini plate of what you just described. I only run my car in warmer weather, so starting it is not a problem. I actually dont adjust it at all. I have the bolt tighten 1 half turn away from full tight & the car runs *well*. I also run headers, heater block off plates & the loudest muffler I could find