|
I like the look of the 1x4 with the turkey pan, which is why I chose that for my car. It went a little against my grain of originality, since S/Cs came with 2x4s. But since S/Cs were leftover comp cars, and comp cars used 1x4, well that worked for me :). I think the 1x4 with T-pan looks more period correct than the 2x4 does, but that's just my personal taste.
I have tuned plenty of cars with 2x4s, and as long as they are setup right, they run great. In particular, the throttle response from the dual 450 mechanical setup is unlike anything else. |
I am a big fan of horsepower and torque, but that twin Paxton setup intimidates me. You'd have to drug me into a stupor to get me in that car as a passenger.
David |
Quote:
http://www.clubcobra.com/photopost/d...m/117_1714.JPG |
Quote:
Those old ball drive Paxtons were complete junk. They couldn't make squat for power. That's why two were needed on a 427, because I am sure shelby put one on and realized it didn't do crap. They look cool as hell, but you could make just as much power with a nice hi-rise 12.5:1 NA motor. |
Quote:
http://i142.photobucket.com/albums/r.../hires044a.jpg |
Quote:
|
Sal, Your rear view mirrors in the wrong place. :)
I have seen pictures of vintage full comp cars without the turkey pan. I think a lot of mechanics threw them away. They look like a royal PIA. I am collecting parts to do a full comp car and I think I will not get a turkey pan just because I have seen original ones without them. But to each there own.:) |
Quote:
http://www.clubcobra.com/photopost/d...m/119_1970.JPG |
Quote:
|
Quote:
|
Quote:
http://www.clubcobra.com/photopost/d...m/119_1978.JPG http://www.clubcobra.com/photopost/d...ed_springs.JPG |
I never thought about the Turkey pan being in the way of the carb, but now that I do, man what a hassle that would be! I've had a bunch of carbs on my ride and tinkered and tweaked them no end until I finally got a combination I liked. That T Pan would have drove me nuts while getting stuff dialed in.
|
Quote:
|
Not to get into a discussion about mechanical versus vacuum secondaries, but Shelby used vacuum secondary carbs for a good reason, the secondaries open as engine demand increases rather than being either closed or wide open with those extra pump shots of fuel to cover the flat spots which is a waste on the street. Of course, I talk about only Holley carbs. Sorry Edelbrock and Carter AFB lovers, those carbs just don't cut it on a Shelby Cobra. Using a pair of 600 cfm carbs on your 427 is still overkill. A 427 at 7000 RPM assuming 100% efficiency will only need 875 cfm of venturi area. I had a friend who used a pair of Holley #8007 390 cfm carbs on his 427, fiddled with the jets a little and loves them to death. Then again, he drives 100% on the street and never pushes the motor to the breaking point. In addition, when mounted on the intake and covered with the S&H air cleaners, they look identical to the 600s. One last point, if you choose to run dual Holleys, ALWAYS use the dual quad secondary diaphragm cover kit to equalize the secondary diaphragms.
|
Quote:
|
I was running mechanical secondaries with a pair of 600 cfm 'center squirters', which are basically 'drag race' carbs, not even a power valve on them! I did like the 'instant kick' they provided when you mashed the gas (this assumes all the planet were lined up, the atmospheric conditions were perfect and Jupiter also aligned with Mars). When they were working man it was great (mpg was horrible, by the way). I swapped them out for vacuum secondaries, same size, smaller jets with a power valve. I DID feel the loss of 'kick' when you mashed the gas hard, BUT, 1/4 mile times were virtually the same (as measured to the hundredths of a second)! They were also more reliable, but then again, those center squirters were old and finicky on the best of days.
|
Quote:
But as some have mentioned. They can be a pain in the butt to tune. |
Quote:
|
"Bog and Rally", :LOL: thats fairly accurate patrickt, describes it well. But every once in awhile (planet alignment) they would hit 'just right' and it was great! :D
|
I have inline dual fours on a Dove tunnel wedge intake manifold. I'm limited to the little trimmed down S&H aircleaners . I think that is my limiter. I need another hoodscoop to get taller elements up into the flow. I'm leaning towards a reversed scoop ,like cowl induction. If I had nothing ,I'd buy a single four intake manifold Like a new Edelbrock Victor set up for multi-port fuel injection and a large single four style air door. and a huge aircleaner.
|
| All times are GMT -7. The time now is 12:11 PM. |
Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: