Riceburner Posted December 16, 2009 Share Posted December 16, 2009 Hey scoota looking great!! Are you building these to sell? If so I'm interested... providing it won't hit my strut tower, what is the overall thickness? Quote Link to comment Share on other sites More sharing options...
Scoota G Posted December 16, 2009 Author Share Posted December 16, 2009 What i had in mind is to fabricate the next one and then make a fibreglass mould of it but i think it wouldn't be worth it as RB30 rocker covers are cheap and plentiful. The distance would depend on what manifold you use but a Ebay one i listed earlier in this thread has less clearence than mine. As a real time guide i can fit my knuckles in between the intake and the strut tower.. .. .. this clearence would expand when the air box is turned around. Once i do the next one i'll post some pics and see what people think (should have a lot cleaner appearance). Quote Link to comment Share on other sites More sharing options...
Riceburner Posted December 16, 2009 Share Posted December 16, 2009 I have a custom manifold and blackbird carbs so I will measure the distance. Keep us posted Quote Link to comment Share on other sites More sharing options...
Huw Posted December 16, 2009 Share Posted December 16, 2009 Nice intake...would never thought of that use! Just a quickie, probably best to move to another topic but....Cold Air intakes and SU's (so diff setup to yours), I didn't think they worked particularly well under pressure? (seem to recall reading somewhere that with SU's forcing the air in can be counter productive...but I am no expert.) The fibreglass mould is an interesting idea. Huw Quote Link to comment Share on other sites More sharing options...
Riceburner Posted December 16, 2009 Share Posted December 16, 2009 Huw, If you run ducting from airbox through rad support then use a 90deg bend and a pod filter. That way you shouldn't get force fed air into box when you're driving. Also with less turbulence around trumpets. Quote Link to comment Share on other sites More sharing options...
Huw Posted December 16, 2009 Share Posted December 16, 2009 ah, that makes sense...thanks... I have tomorrow's procrastination sorted out now. Quote Link to comment Share on other sites More sharing options...
Scoota G Posted January 30, 2011 Author Share Posted January 30, 2011 Sorry for diggging up this thread Again but i started on Version 2 which puts the bumpy bits down the bottom. Quote Link to comment Share on other sites More sharing options...
Sirpent Posted January 30, 2011 Share Posted January 30, 2011 Hey Scoota, Now that looks the goods Buddy ! much more original looking, well done. Are you planning on doing anything with the color of it as in re-apply or maybe polishing the housing to an alloy finish? Cheers John Quote Link to comment Share on other sites More sharing options...
Scoota G Posted January 30, 2011 Author Share Posted January 30, 2011 Are you planning on doing anything with the color of it as in re-apply or maybe polishing the housing to an alloy finish? Hey john thanks, The problem with the cover is it can't be welded easily and has all the holes on the front so polishing wouldn't really work. Going to stick with a color but not sure what yet! The inside grinding makes it 1 kilo lighter Quote Link to comment Share on other sites More sharing options...
Sirpent Posted January 30, 2011 Share Posted January 30, 2011 Scoota, Just an idea, but have you ever considered making a mould and doing it in CF? Quote Link to comment Share on other sites More sharing options...
Scoota G Posted January 30, 2011 Author Share Posted January 30, 2011 Yea buddy that's the next step, i talk about it on the 2nd page. Quote Link to comment Share on other sites More sharing options...
260Coupe Posted January 31, 2011 Share Posted January 31, 2011 Have you dyno'd your manifold to see it if helps or hinders performance ? Quote Link to comment Share on other sites More sharing options...
Scoota G Posted January 31, 2011 Author Share Posted January 31, 2011 Have you dyno'd your manifold to see it if helps or hinders performance ? The next two steps on the car is to service the Auto (friday) and then after Threadbo i'm going to book it in for a dyno session. Quote Link to comment Share on other sites More sharing options...
Scoota G Posted January 31, 2011 Author Share Posted January 31, 2011 Are you planning on doing anything with the color of it as in re-apply or maybe polishing the housing to an alloy finish? Perhaps understate it in a Satin or Matt Black! Quote Link to comment Share on other sites More sharing options...
Scoota G Posted January 31, 2011 Author Share Posted January 31, 2011 Well that's done then. I should have done it this way to start with but i think the principal of custom design is in the practical application and not the theory. You can't see the bumps now and it doesn't even look like a rocker cover now. Quote Link to comment Share on other sites More sharing options...
zr240 Posted January 31, 2011 Share Posted January 31, 2011 looks cool scoota Ive got a nissan (r31) here that I might try to fit onto my car as I need to start getting some cold air and a filter over my triples, Got me thinking I could also try a L series rocker cover? Just wondering if there is an issue with volume of the airbox? Ash Quote Link to comment Share on other sites More sharing options...
260Coupe Posted February 1, 2011 Share Posted February 1, 2011 There is certainly some science in the airbox design, we have proved this on the engine dyno numerous times. The standard 240z air box on the twin Hitachis makes more power than ram tubes alone (and crappy uni filters) by at least 5% across the range. My Prince GTB airbox is tapered front to back and on the engine dyno, improves mid range power by around 10% and no hinderance to top end power (when compared with no air box fitted) For a bit of trivia, the Prince motor company stemmed from Nakajima industries (who made fighter planes during WWII), they still employed a lot of old aircraft engineers who flow bench tested everything before bolting it onto a car...............hence the airbox design . I am hoping to get a mold made soon so I can lay these boxes up if Carbon Fibre . Alan gav240z 1 Quote Link to comment Share on other sites More sharing options...
Gordo Posted February 3, 2011 Share Posted February 3, 2011 Has anyone done the maths on this. 6x 42mm or 40mm ventures trying to suck air @ 7000rpm through what looks like a 80mm diamiter hose feeding the air box. Quote Link to comment Share on other sites More sharing options...
luvemfast Posted February 3, 2011 Share Posted February 3, 2011 Has anyone done the maths on this. 6x 42mm or 40mm ventures trying to suck air @ 7000rpm through what looks like a 80mm diamiter hose feeding the air box. If a GTR can use 75mm, I'd say we're safe for our dinosaur Z's Gordo Quote Link to comment Share on other sites More sharing options...
peter mc Posted February 3, 2011 Share Posted February 3, 2011 hay scoota come down one day and i will run it up and test it all with and with out the air box Quote Link to comment Share on other sites More sharing options...
Riceburner Posted February 3, 2011 Share Posted February 3, 2011 Alan, If you do a copy of your airbox definately count me in. It looks great and works too! Can I smell an Auszcar Dyno Day at Peter's workshop coming up..........? Perhaps a BBQ too! Hehe After my new motor is in ofcourse Quote Link to comment Share on other sites More sharing options...
luvemfast Posted February 3, 2011 Share Posted February 3, 2011 hay scoota come down one day and i will run it up and test it all with and with out the air box Can I smell an Auszcar Dyno Day at Peter's workshop coming up..........? Perhaps a BBQ too! Hehe Count me in (after some more mods) Quote Link to comment Share on other sites More sharing options...
peter mc Posted February 3, 2011 Share Posted February 3, 2011 have to get mine ready. But a dyno day can be arranged Quote Link to comment Share on other sites More sharing options...
Scoota G Posted February 3, 2011 Author Share Posted February 3, 2011 hay scoota come down one day and i will run it up and test it all with and with out the air box Will do peter, i'll get the new exhaust fitted and book it in after Threadbo. Quote Link to comment Share on other sites More sharing options...
peter mc Posted February 4, 2011 Share Posted February 4, 2011 make shore to call as the dyno is booked out weeks at a time but will dyno a zed at short notas Quote Link to comment Share on other sites More sharing options...
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