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  1. Paul Proefrock

    Road Coupe vs Race Coupe

    Does anyone have a list of differences between the Road and Race versions of the MKI. I see an Ash Tray on the forward console and mention of a clock on the dash, but looking thru the registry, no mention of what the various changes were Anyone?
  2. Paul Proefrock

    Active Power instructions?

    To those who are building or have built an ActivePower GT40, does anyone have a copy of any manuals, instructions or packing lists they could share with a prospective buyer? Spoke to Todd, the new owner and he says it's something he's working on but is not available yet. Haven't spoken to Chris...
  3. Paul Proefrock

    Most preferred build?

    I am curious about everyone's opinion as to the most desirable build when using resale as a parameter Mk I w/ small block Mk I w/427W Mk I w/ Coyote Mk II w/427W Mk II w/427FE Mk II w/ Coyote Please select two choices on the above poll that you think would command the highest resale value or...
  4. Paul Proefrock

    GT40 roadster

    Not planning monocoque construction.
  5. Paul Proefrock

    GT40 roadster

    Rick Do you have any additional pictures/details on th Gelscoe roadster builds? I am on a mission to convert a kit to a roadster. Gathering information is not the easiest for these things Paul
  6. Paul Proefrock

    Active Power - New Owner?

    I spoke to Chris Ardern's son today, calling to get info on cars. He told me they sold the company in April to a gentleman in Minnesota named Todd. I saw the site had been relabeled to an address in Minnesota. Did a little Google searching and the address comes up to a gentleman named Todd...
  7. Paul Proefrock

    Rich GT40 mk1 body build

    Richard Wanting to learn how close are the formers, the pieces that run across with width of the body, the nominal center to center spacing. Hopefully , the red arrow will show up and help explain.
  8. Paul Proefrock

    Rich GT40 mk1 body build

    Richard I admire your work and it gives me some ideas for my project. If you don't mind, a few questions 1) what is the fore-aft spacing of the various stations 2) what material is the green foam?
  9. Paul Proefrock

    FAST EZ EFI self tuning system issues

    A friend tried a similar setup on his Cobra. After a lot of heartache, he learned the FAST EZ-EFI will not work with the EightStack system. I believe it was that it wouldn't support Alpha-N. Comp/FAST traded out his EZ system for a Sportsman system and issue was partially resolved. (he has a lot...
  10. Paul Proefrock

    Weber 48IDA Heat Soak/Hot Start Problems

    Check your float bowl fuel level. I bet you'll find it a touch high Paul
  11. Paul Proefrock

    AVOID Finish Line Accessories

    Check here for Lucas items Period Correct, LLC Mostly cobra stuff but many of the parts cross over to the GT40's
  12. Paul Proefrock

    Engine management

    I run a Performance Electronics unit with my Borla system. It works really well. One of the few units that will do sequential injection if you're looking for full control of the fueling & ignition sequences. It will also do semi-sequential fuel control if you desire to run that mode. Lots of...
  13. Paul Proefrock

    ITB's and crankcase ventilation

    I am running a set of Borla's on a big block. The manifold includes a chamber in the valley that serves as a vacuum reservoir. It generates enough vacuum that I can run a PCV system w/ catch can. The ITB's typically have some form of MAP system. Adding a vacuum pump may generate more issues than...
  14. Paul Proefrock

    Porsche Drive train

    One more dimension that could help is the distance from the axle centerline to the back of the engine block. Also, is the axle centerline on the same plane as the crankshaft center? Paul
  15. Paul Proefrock

    Porsche Drive train

    I am working on some ideas for a GT40 Roadster build and trying to find drawings (2D or 2D) or dimensions of the Porsche drive axles typically used on our vehicles. Does anyone have info on this? Thanks Paul
  16. Paul Proefrock

    What’s up with this GT110/X-1?

    That car looks like the ERA spyder. Only one was made. Sorry, but not an original but a replica. A couple years ago was on Bring a Trailer but didn't make reserve https://bringatrailer.com/listing/1965-era-mkii-gt40-roadster/ Paul
  17. Paul Proefrock

    Air leaks with slip fit collectors and EFI causing rich A/F?

    Terry, can you expand on this - how did you get them to match Paul
  18. Paul Proefrock

    Air leaks with slip fit collectors and EFI causing rich A/F?

    Joel I am anxious to see if you get any responses. I have an EFI car running a single slip connection on the pipes and it seems to work fine. I have had some decel popping issues and not able to tell if it is the slip joint, reversion from the side pipe or something else. System is a Ford FE...
  19. Paul Proefrock

    Can someone pull together some historical (this site) loose ends

    Not looking to purchase, I am chasing loose ends on some design history and this is one loose end I can't seem to resolve. Surprised the links for such a renowned person lead to nowhere and that comments on design only have a couple pics. Paul
  20. Paul Proefrock

    Can someone pull together some historical (this site) loose ends

    I've seen a couple references to his plans and also to his website but neither are showing up on Google or on the Google archives. Did the site actually exist? I've seen a couple jpeg's of his frame drawing on this site, but again, no other info or details. ? ? ?
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