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  1. Paul Proefrock

    Front Dress - original small blocks?

    As I await the delivery of my RCR GT40, I am digging into the lessons others have learned/solved. I am researching the front end of a small block: water pump, alternator, A/C compressor. I see all the modern approaches but curious how it was done on the originals. I have not been able to locate...
  2. Paul Proefrock

    Harrison's Garage's RCR 40 Build

    Randy, Most lifts are designed to work with a 4" thick, 3000psi concrete - the typical floor found in garages and dealerships. Once you've picked a brand and model, ask them for an installation book. That will outline their requirements. I doubt you'll find it any different. One caution: the...
  3. Paul Proefrock

    Streetable Eight Stack

    Randy I am starting in on my 5th ITB setup and think I've finally learned enough that I don't get the jitters when I go to start it up. Some points that may help: Remember, you get exactly what you pay for. There is a reason for the dollar difference between SpeedMaster and Borla. ITB's are...
  4. Paul Proefrock

    Harrison's Garage's RCR 40 Build

    Harrison, A little off the topic of GT40's but your note caught my attention. In my past life, I was an automobile lift guy - Engineering, Service, Warranty, Product Liability, Manufacturing, Marketing and Sales. Did everything except accounting. My career spanned 45 years in the industry with...
  5. Paul Proefrock

    Roll Bar location

    As I read & search threads in anticipation of my build, I am running across all kinds of suggestions, changes, and Mods. One that caught my eye was the one by Paul Thon and also Rick Merz. They relocated the rollbar from the cockpit to behind the firewall. As I studied this, I've learned RCR...
  6. Paul Proefrock

    Happy Birthday, Fran

    Oops, Jumped the gun - Tomorrow is the day. I responded to my reminder, not to the actual event. Everyone get ready - Tomorrow Cake & Balloons
  7. Paul Proefrock

    Happy Birthday, Fran

    Happy Birthday, Fran Hall Been doing research on this forum and learned today is a special day for you Paul Proefrock
  8. Paul Proefrock

    RCR40 Shifter w/ZF 5D-25-2

    Alan, How would you describe the quality of the shifting? The one we are playing with is extremely difficult to shift however the car is not running and we don't know how much influence that would have over being able to go in and out of gear. We notice some 'slop' in the small 'L' lever...
  9. Paul Proefrock

    Chassis Color on Shelby American MkII's

    Is that dark blue or just the way the camera renders a satin black? Colors in a computer image can be very misleading Paul
  10. Paul Proefrock

    Columbus Ohio RCR40

    Little known fact, but it is true.
  11. Paul Proefrock

    Columbus Ohio RCR40

    Nick That just came to me this morning in the shower. Your confirmation set me on a 'next step' I've been studying the concept of the siphon effect of exhaust collectors. If I've read the threads correctly, it isn't a big game changer but every little bit helps. Seems if you align the...
  12. Paul Proefrock

    Columbus Ohio RCR40

    Nick Nice artwork ;) I am studying the exhaust system also, planning my header build. Can you help a beginner with an explanation of the "D" & "P" That has me a little confused, thanks Paul
  13. Paul Proefrock

    Exhaust Modeling Kits

    Thanks for your responses, guys. A second question As you started your build, did you try to use the same bend radius everywhere, or did you find yourself mixing pieces to get the layout you want? I can see it would be easier to use the same bend over and over but can also see there may be a...
  14. Paul Proefrock

    Exhaust Modeling Kits

    I have a question for the brain trust - those who have or are using the Icengineworks modeling kit (or clone version) to generate their bundle of snakes exhaust. The Icengineworks kit is designed so that each adapter has a 1" centerline length with the idea you can match your exhaust tube...
  15. Paul Proefrock

    Upgrade Funding

    Ron, I see two different supporter badges; Supporter and Lifetime Supporter yet I don't see anyway to upgrade to the lifetime. Was that a one-time thing or am I not seeing a link somewhere Paul
  16. Paul Proefrock

    RCR Spline dimension

    Thanks, Brian. Curious on a couple points 1) what is the sleeving you used? Brand? Part No?. 2) how much difference is there between the RCR frames of GT40 Lola GT-R SLC Are they all essentially the same with some dimensional changes? I've looked for pictures of the various frames however...
  17. Paul Proefrock

    RCR Spline dimension

    Adam, that would make the ID 1-1/2" Are the coolant tubes then substantially smaller than 1-1/2" I understand the interior is full but really confused by all this. Is the 1/4" wall correct? Jim, a 1-3/4" ID would accept a 1-1/2" coolant tube with some type of insulation wrap but a tight fit...
  18. Paul Proefrock

    RCR Spline dimension

    Hoping one of the RCR guys can help me with a couple dimensions. Planning an RCR build and doing some preliminary work. The RCR GT40 frame has a spline that runs fore and aft. Can anyone supply me with the ID and OD dimensions of the aluminum tube that makes up this spline? This is a shot of...
  19. Paul Proefrock

    Flare comparison

    Can anyone help me to visualize the difference between the standard MkI and the MkI with 2" flares. I understand how the rear wheel area is enlarged, but I am having trouble trying to identify if a car has the flares or not. Is there something to help easily identify if the flares have been...
  20. Paul Proefrock

    Road Coupe vs Race Coupe

    Hey guys, If you can get back on track, this thread is about the Mark I cars, which offered two versions: Race Coupe and Road Coupe Like Ian pointed out, the Mark III is a totally different animal.
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