Griff Posted October 17, 2005 Share Posted October 17, 2005 Anyone interested in trying to do a bulk buy on carbon airboxes? Specifically for K-series with throttle bodies. I haven't done all the research yet on best types etc so would appreciate feedback to narrow down the field. Cheers. It's not pink, it's medium red violet... 😬 Link to comment Share on other sites More sharing options...
Petrolhead Posted October 17, 2005 Share Posted October 17, 2005 Pobbibly so long as they fit roller ones as well NE7Club Web Site R5 no 65 😬 Link to comment Share on other sites More sharing options...
Alex Wong1697456877 Posted October 17, 2005 Share Posted October 17, 2005 Who would you be getting these from - If from Reverie, you could extend the bulk buy to Vx owners who need them more than the K boys. Link to comment Share on other sites More sharing options...
Rob Walker Posted October 17, 2005 Share Posted October 17, 2005 I wouldn`t waste me money on Carbon. Bernard Scouse does a super air box kit for the K at £340 which includes 42X90mm trumpets,backplate,fuel rail fixings,and throttle cable stay bracket this price also includes postage Tel 01933 224334 or SALES@AUTO-TEKNIX.CO.UK Link to comment Share on other sites More sharing options...
Rob Walker Posted October 17, 2005 Share Posted October 17, 2005 Alex, I can`t see any reason why the Scouse air box wouldn`t fit your VX if you spec a blank back plate and drill it yourself to suit and deleat the trumpets etc. Link to comment Share on other sites More sharing options...
Casbar Posted October 17, 2005 Share Posted October 17, 2005 Does the Bernard Scouse air box fit the roller barrels Link to comment Share on other sites More sharing options...
Myles Posted October 17, 2005 Share Posted October 17, 2005 I've got the 'Scouse box - so has OBNS. ISTR him posting fairly recently that he got an extra 10bhp or so on Emeralds rollers by taking it off... It's a good product, but there might be less-restrictive solutions out there. DJ does OK with his - but he modified it with a much larger air-filter and neck. Also, FWIW, I thought the 90mm trumpets (again, the ones I've got) are a cost-option. The standard (in the price) jobs are shorter(!?) Project Scope-Creep is live... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
dannylt Posted October 17, 2005 Share Posted October 17, 2005 I thought Scouse was too busy with his VAG kit these days to do airboxes any more? Link to comment Share on other sites More sharing options...
EFA Posted October 17, 2005 Share Posted October 17, 2005 I'm thinking an airbox will likely reduce power on a rolling road too, as it is impossible to provide the airflow for the box to work in most of these installations. I also think this is why my engine ran rich on the rollers last week - the ECU has maybe calibrated itself for more fueling at high speed load sites..... Link to comment Share on other sites More sharing options...
SimonMac Posted October 17, 2005 Share Posted October 17, 2005 Myles, interesting what you say about the power reduction caused by the BS airbox. According to Auto-Tecnix's website Dave Walker's RR showed no reduction with the Bernard Scouse airbox vs. open intakes: here Link to comment Share on other sites More sharing options...
Jason Plato Posted October 17, 2005 Share Posted October 17, 2005 😬 😬 😬 😬 *arrowup* mine made 3bhp MORE with the airbox Arnie Link to comment Share on other sites More sharing options...
Jason Plato Posted October 17, 2005 Share Posted October 17, 2005 Simon Mac - it depends on the power level of the engine . I enlarged the intake to 102mm and it was fine on the rollers . I suspect above 220 bhp you may see a reduction in power with the std inlet size . Easy to modify however Link to comment Share on other sites More sharing options...
Myles Posted October 17, 2005 Share Posted October 17, 2005 Simonmac. I was surprised too - I was given to understand that the pulse-reflection could/would be beneficial (at least for torque) - but OBNS found otherwise here Project Scope-Creep is live... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
Griff Posted October 17, 2005 Author Share Posted October 17, 2005 Power is nothing if you're kicked off a track day for noise! And RMA days at Bedford are expensive enough without having to short shift around all the interesting bits I spoke to several of the noise police there and they said a large propotion of the problems are with induction noise rather than exhausts and that airboxes on Catherhams make a big difference. Listening to the video footage with microphone out of the main airstram at the back of the car, I can clearly hear induction over exhaust under heavy acceleration. I'll do some homework and ask prospective suppliers the question about VX engines, roller bodies etc. Is space more or less of a problem around the intake on the VX cars compred to K-series cars? When I've got the options sorted I'll post again. It's not pink, it's medium red violet... 😬 Link to comment Share on other sites More sharing options...
Petrolhead Posted October 17, 2005 Share Posted October 17, 2005 I am also interested if the BS box fits Rollers NE7Club Web Site R5 no 65 😬 Link to comment Share on other sites More sharing options...
oldbutnotslow Posted October 17, 2005 Share Posted October 17, 2005 My problem was apparently caused by the use of the much bigger 90mm trumpets. (they are 90mm long and 90mm wide at the bell mouths) Dave Walker felt that they were too close to the inside of the air box and that this was causing the problem. When using the shorter trumpets there has not been a reported loss of power with the box on v open. DW suggested that I make a 15mm spacer, which should eliminate the problem. This I did and ran the set-up for the first time at Cadwell. The car did feel more lively but the only real way to determine if it has cleared up the problem is to run back to back tests preferably on the rollers. Just how much extra benefit you get from using the 90 mm trumpets v loss using the 90mm trumpets and the standard air box I don’t know. What I can say is that I doubt that I would pass many noise tests if I had foam filters as opposed to the air box!! Grant 😬 183 BHP of Black and 'Stone Chip' excitement. 😬 here Link to comment Share on other sites More sharing options...
DSL Posted October 17, 2005 Share Posted October 17, 2005 It will pass at bedford 100dba & donnington 98dba with both a carbon airbox & 7in silencer, well mine did at both venue's anyway (R400) Edited by - DSL on 17 Oct 2005 11:55:48 Link to comment Share on other sites More sharing options...
Myles Posted October 17, 2005 Share Posted October 17, 2005 Grant - did you use the Scouse-supplied 90's, or somebody elses??? I noticed mine were very close to the wall as well... Watcha make the spacer from??? Project Scope-Creep is live... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
lrem Posted October 17, 2005 Share Posted October 17, 2005 OBNS, I'm also interested in how you made the spacer - I too am running the BS 90mm trumpets with the BS airbox kit. Unfortunately I sold the standard 43mm(?) trumpets which came with the kit, thinking that they'd give a bit less torque... Link to comment Share on other sites More sharing options...
Anthony Posted October 17, 2005 Share Posted October 17, 2005 Apologies for high-jack, but if anyone is interested in a brand-new un-used DITP carbon air box which will fit a K or VX let me know Kind regards Anthony Anthony Car is nearly ready, but I have be saying that for at least a year :-) Link to comment Share on other sites More sharing options...
Jason Plato Posted October 17, 2005 Share Posted October 17, 2005 if you use spacers they would have to be mounted between the airbox backplate and throttle body . The trouble is that the BS airbox has a scallop cut out on its underside to clear the clutch cable . if you space the airbox away from the throttle bodies then you will foul the clutch cable . The clearance around the chassis cross member is also very tight . I looked at ways of using 130mm trumpets and had some ally spacers made up , but the box clashed with chasiss and clutch , then I went to emerald and got a result I was happy with on shorter trumpets - although there is more potential, so I left it as it was . My plan is to cut away the underside of the airbox to allow clearance around the clutch and chassis and then re fiberglass it . Then use my ally spacers between the back plate and throttle bodies. But this will be after I have tested the increased trumpet length on the rollers / dyno . The BS box will not fit roller barrels unless you cut the bonnet up and have part of the box protruding . Why not make a box for the rollers from sheet alluminium ? Dave Link to comment Share on other sites More sharing options...
Myles Posted October 17, 2005 Share Posted October 17, 2005 Good point about the moulding on the underside of the box... Hmm... Project Scope-Creep is live... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
Jason Plato Posted October 17, 2005 Share Posted October 17, 2005 remember that the box ( with enlarged entry) doesnt appear to restrict on power upto 245 bhp . I also havent any issues with throttle response. and its proven on many K series engines that 90mm trumpets work inside this box and with this engine. Any extra length shoudl be tested on your engine before we all hack our boxes up 😬 Link to comment Share on other sites More sharing options...
oldbutnotslow Posted October 17, 2005 Share Posted October 17, 2005 Firstly let me say that this mod does not require you to cut the box up! I found the same problem that Dave mentions regarding the clutch cable. However, I went ahead and made mine up out of plastic channelling. see here Essentially I used 2 pieces of 18mm wide plastic channelling bought from Homebase and glued them together to form a box, using PVC plastic weld bought from the plumbers merchants. Its the stuff that is normally used to weld plastic drain / water pipes together. I cut V sections out to allow the thing to bend before gluing both the inner and outer. I also had the joins in different places on the outer and inner to give extra rigidity. Once I was happy with the shape I glued them together. This produced something around 20mm deep and very ridged. I fitted a thin strip of self adhesive foam to one side and then attached the spacer to the aluminium back plate using 6 very small self tapers and then drilled the 5 box mounting holes. I needed longer mounting bolts to fit the air box in place. The trumpets and back plate stay in the standard position with only the box being spaced out. As Dave says, the cut out for the clutch cable is then moved out of position. Fortunately my box cleared the cable by about 4 or 5mm. That said when I pull the engine I will grind out the box and refabricate to make sure that there is more of a gap. I checked carefully everywhere else and I am pleased to say that it does not foul any of the chassis members or the bonnet. 20mm is about as wide as you can go though because of the chassis taper on a narrow body and the fact that the more you space the box out the higher the top gets because it is made on the cant. Im sure that there is a more elegant solution but so far this works fine! The trumpets are the BS ones I hope this helps. Pictures updated to show the spacer in place see here Grant 😬 183 BHP of Black and 'Stone Chip' excitement. 😬 here Edited by - oldbutnotslow on 17 Oct 2005 14:41:52 Link to comment Share on other sites More sharing options...
7 wonders of the world Posted October 17, 2005 Share Posted October 17, 2005 I'm interested (definately) in a BB on a Bernard Scouse, Airbox kit, trumpets and linkages etc for a K on Jenvey DTH TB's. Soon as you like please ! Thanks Link to comment Share on other sites More sharing options...
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