October 21, 200816 yr comment_263925 ^ Thanks. Too big for my stock 240Z motor. I guess I'll go with my first choice of a Stahl header. Probably a 1 3/8" to 1 1/2" tubing. I have been talking to Jere about what it would take to get a GB going from him. Edited October 21, 200816 yr by jmark Link to comment https://www.classiczcars.com/forums/topic/29674-roberts-competitions-exhaust/?&page=3#findComment-263925 Share on other sites More sharing options...
October 21, 200816 yr comment_263943 Mark, I think the 1 3/4" he noted was the dual pipe size, not the header primary size. Link to comment https://www.classiczcars.com/forums/topic/29674-roberts-competitions-exhaust/?&page=3#findComment-263943 Share on other sites More sharing options...
October 22, 200816 yr comment_264030 ^ You maybe right. I have been told 1 3/8" primaries is optimum for a stock 240Z. Link to comment https://www.classiczcars.com/forums/topic/29674-roberts-competitions-exhaust/?&page=3#findComment-264030 Share on other sites More sharing options...
October 22, 200816 yr comment_264056 Stahl typically offers a 1 5/8" and 1 3/4" primary tube size on their race headers. The dual exhaust setup you guys are discussing is great from a nostalgic point of view but exhaust technology has moved on. This setup will give you less horsepower and torque then a good single 2.5" or 3" exhaust. Link to comment https://www.classiczcars.com/forums/topic/29674-roberts-competitions-exhaust/?&page=3#findComment-264056 Share on other sites More sharing options...
October 22, 200816 yr comment_264057 You are correct John. I have been talking with Jere Stahl & Keith Thomas (katman) and both recommend the 1 3/8" primaries for a stock 240Z. Link to comment https://www.classiczcars.com/forums/topic/29674-roberts-competitions-exhaust/?&page=3#findComment-264057 Share on other sites More sharing options...
October 22, 200816 yr comment_264074 Here are some pictures of that exhaust system. Sorry for the quality, flash on the camera is broken.... If anyone need some measurements, I'll be happy to help! Joce Link to comment https://www.classiczcars.com/forums/topic/29674-roberts-competitions-exhaust/?&page=3#findComment-264074 Share on other sites More sharing options...
October 23, 200816 yr Author comment_264199 the exhaust if its gonna be reproduced must be mandrel bent i aint want a crush bent exhaust.. the header is sexy... Link to comment https://www.classiczcars.com/forums/topic/29674-roberts-competitions-exhaust/?&page=3#findComment-264199 Share on other sites More sharing options...
January 22, 200916 yr comment_271710 I found this Clifford header on ebay today. http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=320333021529I'm thinking of connecting to the NOS ANSA resonator and twin stacks I have.-Mike Link to comment https://www.classiczcars.com/forums/topic/29674-roberts-competitions-exhaust/?&page=3#findComment-271710 Share on other sites More sharing options...
January 22, 200916 yr comment_271714 I found this Clifford header on ebay today. http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=320333021529I'm thinking of connecting to the NOS ANSA resonator and twin stacks I have.-MikeNice! I'm assuming you won the auction then? Link to comment https://www.classiczcars.com/forums/topic/29674-roberts-competitions-exhaust/?&page=3#findComment-271714 Share on other sites More sharing options...
January 22, 200916 yr comment_271715 I'm assuming you won the auction then?Yes. It helps when they spell it "Clifferd" and only reference Datsun L-series and not 240z :classic:-Mike Link to comment https://www.classiczcars.com/forums/topic/29674-roberts-competitions-exhaust/?&page=3#findComment-271715 Share on other sites More sharing options...
January 22, 200916 yr Author comment_271767 no!!!!! i missed it!!!!you lucky bastard Link to comment https://www.classiczcars.com/forums/topic/29674-roberts-competitions-exhaust/?&page=3#findComment-271767 Share on other sites More sharing options...
January 23, 200916 yr comment_271847 Yes. It helps when they spell it "Clifferd" and only reference Datsun L-series and not 240z :classic:-Mike Indeed, you be surpised what things turn up when searched like that Your up coming set up should be SiCCCC :classic: ~Z~ Link to comment https://www.classiczcars.com/forums/topic/29674-roberts-competitions-exhaust/?&page=3#findComment-271847 Share on other sites More sharing options...
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