jevansio Posted February 2, 2011 Author Share Posted February 2, 2011 Well, I'll never have it said that I don't listen to constructive criticism from you guys , so i have been on the lookout for a better filter, I think I have found it in the form of the K&N RC-4780. It's a bit longer & thinner so suits the shape of my barrel better, I calculate not only does it actually give slightly more filter surface area, but the amount of volume around the filter for the air to circulate is increased. Also being cone shaped should help give more volume where it's needed (ie the end where air enters the barrel). I did a quick scale pic showing the current filter & this new one to show the better volume usage Quote Link to comment Share on other sites More sharing options...
fuldhat Posted February 2, 2011 Share Posted February 2, 2011 Think the new filter, should work better. Next question.. when are you going to sell these kits..... Quote Link to comment Share on other sites More sharing options...
Scott Posted February 2, 2011 Share Posted February 2, 2011 Well, I'll never have it said that I don't listen to constructive criticism from you guys , so i have been on the lookout for a better filter, I think I have found it in the form of the K&N RC-4780. It's a bit longer & thinner so suits the shape of my barrel better, I calculate not only does it actually give slightly more filter surface area, but the amount of volume around the filter for the air to circulate is increased. Also being cone shaped should help give more volume where it's needed (ie the end where air enters the barrel). I did a quick scale pic showing the current filter & this new one to show the better volume usage http://www.mkivsupra.net/vbb/attachment.php?attachmentid=126342&stc=1&d=1296680818 Looks magic, I haven't received your subscription notice yet though The positioning of the box intake and the shape of the cone are PERFECT for each other IMO. The volume is at its maximum right where it needs to be. Quote Link to comment Share on other sites More sharing options...
jevansio Posted February 5, 2011 Author Share Posted February 5, 2011 On a side note, I managed to fix the missfire, it was the RLTC as I suspected, removing it from the injector loom fixed it straight away. I plugged my laptop into the RLTC to see what the crack was and this is what it displayed for the sensors with the car idling on the drive: It looks like if the RLTC gets a bad connection it's enough to take out the ABS system (I checked when my warning light was on & the wheels locked up). I tweaked the RLTC pins (a bit like you tweak the coilpack connectors) and the graph went perfect again, also the ABS warning vanished. Just incase anyone else comes across the same problem/symptoms Quote Link to comment Share on other sites More sharing options...
Scott Posted February 5, 2011 Share Posted February 5, 2011 That's a fast idle Good fix bud, maybe a seperate thread in technical would be a good idea, for searching purposes etc Quote Link to comment Share on other sites More sharing options...
jevansio Posted February 12, 2011 Author Share Posted February 12, 2011 The new filter turned up, it is perfect IMHO, not just size wise, but the way it fits, it has a bolt already at one end, which was great as I just drilled a hole in the back plate and bolted it up, it holds the thing together solid & I don't have to worry about making clamps at the other end. Also it is the perfect length, you would have thunk it was custom made for me lol I also replaced the bring shiney ducting with some black motorsport stuff from Merlin, much more subtle and easier to install Hopefully this V3 item will be more acceptable Quote Link to comment Share on other sites More sharing options...
johnny g Posted February 12, 2011 Share Posted February 12, 2011 You doing a test on it today, Jay? Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted February 12, 2011 Share Posted February 12, 2011 Nice work Quote Link to comment Share on other sites More sharing options...
jevansio Posted February 12, 2011 Author Share Posted February 12, 2011 Johnny, I took it out tody bud, roads are less than perfect, but the car is insane, recorded the biggest wrhp figure to date on the RLPB, 606rwhp = 721bhp (probably exactly what the last dyno showed). No idea what effect the box has had (good or bad), but suffice to say it don't seem to be hindering performance at all. A lot has changed on my car since the last run (exhaust, cams, weight), so it's hard to draw any comparsions, the fact it's faster than ever is good enough for me. A swift 5th gear pull saw 160 leptons clocked up in no time. The RLTC is still disabled while I figure out what the hell my ABS system is doing, so it was a HAIRY ride today Cheers swampy Quote Link to comment Share on other sites More sharing options...
johnny g Posted February 12, 2011 Share Posted February 12, 2011 Nice one fella! I look forward to being a little closer when Hodge has finished, maybe not quite the whitewash it was last time Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted February 12, 2011 Share Posted February 12, 2011 No worries,just good to see some high quality home build stuff. Great powerz figures! Quote Link to comment Share on other sites More sharing options...
jevansio Posted February 14, 2011 Author Share Posted February 14, 2011 Make of this what you will, but after I came home from the run out the other day, I opened the bonnet to find the back of the airbox had blown out, it is an EXTREMELY tough push fit into the barrel and it was also sik-a-flexed onto the back of the cone filter (but it had not completely cured). I'm not saying this is some super power boosting increase, but there are obviously times when the pressue in there is above ambient, which to me can only be a good thing Quote Link to comment Share on other sites More sharing options...
Scott Posted February 14, 2011 Share Posted February 14, 2011 Make of this what you will, but after I came home from the run out the other day, I opened the bonnet to find the back of the airbox had blown out, it is an EXTREMELY tough push fit into the barrel and it was also sik-a-flexed onto the back of the cone filter (but it had not completely cured). I'm not saying this is some super power boosting increase, but there are obviously times when the pressue in there is above ambient, which to me can only be a good thing Would that be from the surge when you let off the accelerator? I can't think of any positive pressure situations other than during surge Quote Link to comment Share on other sites More sharing options...
jevansio Posted February 14, 2011 Author Share Posted February 14, 2011 Would that be from the surge when you let off the accelerator? I can't think of any positive pressure situations other than during surge I'm thinking that scenario, but not the surge, just the air coming into the box at 160 leptons anytime the throttle is closed Quote Link to comment Share on other sites More sharing options...
Scott Posted February 14, 2011 Share Posted February 14, 2011 I'm thinking that scenario, but not the surge, just the air coming into the box at 160 leptons anytime the throttle is closed Ahh, set up as a forced induction fashion. Do you have it pointing forwards once going through to the bumper? Quote Link to comment Share on other sites More sharing options...
jevansio Posted February 14, 2011 Author Share Posted February 14, 2011 Ahh, set up as a forced induction fashion. Do you have it pointing forwards once going through to the bumper? Yeah, check out the pics at the start of this thread Quote Link to comment Share on other sites More sharing options...
imi Posted February 16, 2011 Share Posted February 16, 2011 (edited) The new filter turned up, it is perfect IMHO, not just size wise, but the way it fits, it has a bolt already at one end, which was great as I just drilled a hole in the back plate and bolted it up, it holds the thing together solid & I don't have to worry about making clamps at the other end. Also it is the perfect length, you would have thunk it was custom made for me lol I also replaced the bring shiney ducting with some black motorsport stuff from Merlin, much more subtle and easier to install Hopefully this V3 item will be more acceptable http://www.mkivsupra.net/vbb/attachment.php?attachmentid=126790&stc=1&d=1297519918 http://www.mkivsupra.net/vbb/attachment.php?attachmentid=126791&stc=1&d=1297519918 http://www.mkivsupra.net/vbb/attachment.php?attachmentid=126792&stc=1&d=1297519918 http://www.mkivsupra.net/vbb/attachment.php?attachmentid=126793&stc=1&d=1297519918 http://www.mkivsupra.net/vbb/attachment.php?attachmentid=126794&stc=1&d=1297519918 thread has been a good read - impressed by the R&D involved; the simple approach with function over form in mind. With version 3 I think you have ended up with a setup that also looks fantastic. in your case the cold air feed is under the filter housing, would be interesting to hear ideas of how this would work in a single setup like mine where I choose to use a SMIC and would prefer to use the two stock cold air feeds (RAD + passenger light). imi Edited February 16, 2011 by imi (see edit history) Quote Link to comment Share on other sites More sharing options...
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