Alfadog Posted April 9, 2014 Share Posted April 9, 2014 I'm in need of a VIC roadworthy certificate asap, however my carbs have filters on without an airbox. Simple question - any chance of a roadworthy without an airbox? From what I gather, answer is no. More complicated question - what's the way around this for aftermarket (triple) carbs? I figure it might be possible to find a stock airbox and try to modify it to fit? Any ideas or previous experiences would be appreciated! Quote Link to comment Share on other sites More sharing options...
Stivva Posted April 9, 2014 Share Posted April 9, 2014 Steel or plastic box. Cut the holes out for the carbs and air entry. Prompt remove post roadworthy. Quote Link to comment Share on other sites More sharing options...
Mr Camouflage Posted April 9, 2014 Share Posted April 9, 2014 Or maybe something like these, unknown on roadwortyness over there though. http://www.thezstore.com/page/TZS/PROD/classic17a02d/11-4016 Quote Link to comment Share on other sites More sharing options...
Riceburner Posted April 9, 2014 Share Posted April 9, 2014 Buy or borrow a complete twin SU setup. Make sure the crank case and rocker cover breathers are connected to the manifold and air box. Sweet ride BTW, It's a beauty! Quote Link to comment Share on other sites More sharing options...
Scoota G Posted April 10, 2014 Share Posted April 10, 2014 Do something for me, measure the distance between two of the carbs using the center of the top two bolts that hold on the trumpet. I have my custom airbox for triples off the car at the moment which i am quite willing to lend you to get through a roadworthy. Send me a PM after that. Mark Quote Link to comment Share on other sites More sharing options...
Administrators gav240z Posted April 10, 2014 Administrators Share Posted April 10, 2014 I have a set of those K&N filters to suit Mikuni's. I think the issue will be the cam cover oil and crank breather pipes going nowhere (do you have an oil catch can in your car?) If you needed a 240z air box I could have lent you that for road worthy, but you have Triples Quote Link to comment Share on other sites More sharing options...
Moderators PB260Z Posted April 10, 2014 Moderators Share Posted April 10, 2014 Do something for me, measure the distance between two of the carbs using the center of the top two bolts that hold on the trumpet. I have my custom airbox for triples off the car at the moment which i am quite willing to lend you to get through a roadworthy. Send me a PM after that. Mark Was just about to suggest talking to Scoota re what he has on Oscar, then noticed you had already stepped in. Quote Link to comment Share on other sites More sharing options...
Administrators gav240z Posted April 10, 2014 Administrators Share Posted April 10, 2014 By the way I'm thinking of fabricating my own air box (out of steel) to look like the 240z S.U air box, but to suit Triple Mikuni's for my own 240z. The plan is to paint it orange also so it looks OEM. I'm not really that impressed with many of the aftermarket ones I've seen made of fiberglass etc.. Quote Link to comment Share on other sites More sharing options...
260Coupe Posted April 10, 2014 Share Posted April 10, 2014 Guys From personal experience the EPA are red hot on crank case and rocker cover vents to atmosphere, catch cans are out as the crank case gases must be reburned...........ie you must have these plumbed back through an airbox. The other issue is induction noise........yes we think it sounds brilliant......but not the EPA I did offer some years back to get the Prince GTB box (modified to fit the L series triples as fitted on my Zed) produced in C/F but could not get enough committed interest. I have since sold my Zed however I may be able to get my hands on another air box to use to make a plug........if there is enough interest that is. Al. Quote Link to comment Share on other sites More sharing options...
Administrators gav240z Posted April 10, 2014 Administrators Share Posted April 10, 2014 I think you can still get the air-box that Gavin Strongman made for his Silver 260z. http://www.viczcar.com/forum/index.php/topic,6061.msg53440.html#msg53440 PeterAllen on here said they were able to get 1 for his pommy friend Mike (context link here: http://www.viczcar.com/forum/index.php/topic,14071.msg148958.html#msg148958) before he left to return to the rainy country. So I'd ask Peter if he has the contact details of where he got it. Quote Link to comment Share on other sites More sharing options...
GV260 Posted April 10, 2014 Share Posted April 10, 2014 I have a Gavin Strongman air box for sale - $250. Quote Link to comment Share on other sites More sharing options...
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