superhawk996 Posted March 14, 2016 Share Posted March 14, 2016 Absolutely agree. Plenum size hasn't been discussed, but can be a factor as well. The shape and the angles are generally more important to flow, it reduces the work needed (stealing your word there) to get air into the cylinders and getting an even amount of air into each cylinder. The individual runner sizes/shapes are another factor not touched on and can play off the overall plenum size. Quote Link to comment Share on other sites More sharing options...
XX4me Posted August 4, 2016 Share Posted August 4, 2016 Interesting thread considering I've been sitting around this evening contemplating ways to make the plenum on my XX flow more smoothly. Quote Link to comment Share on other sites More sharing options...
superhawk996 Posted August 4, 2016 Share Posted August 4, 2016 From memory about all you'll get here is me vs. hank with two distinctly different theories so you may wanna do some googling. I haven't boosted a bird but if I did I'd try to use something as closely resembling the stock airbox as possible. Me personally I'd look into reinforcing the stock box to handle pressure, possibly coating it with fiberglass or carbon fiber would do the trick. I would probably replace the stock air filter with something to act as a diffuser, a dry K&N might be a good option or just a large fine mesh screen. A stock filter would work but might pose some restriction. If you have pictures of your plenum I'll give you my thoughts for you to research against. Quote Link to comment Share on other sites More sharing options...
The Krypt Keeper Posted August 4, 2016 Share Posted August 4, 2016 how much psi is created in the stock airbox when the system is pressurized going above 110-115mph creating the ram air effect? My PCIIIr is tuned to richen up a bit in the upper gears around 8k rpms (when you would be hauling ass) Most dyno's dont replicated the air speed being shoved into the bike at speed. Just a cute fan to keep the bike cool. Guess we could use a leaf blower aimed at the nose intake. They do what 160mph wind speeds? That could help get a better real world tune.. maybe I should take a leaf blower with me next dyno run. would get some weird looks with it strapped on my back. Make liberals think its an assault rifle. Quote Link to comment Share on other sites More sharing options...
blackhawkxx Posted August 4, 2016 Share Posted August 4, 2016 2 hours ago, The Krypt Keeper said: Make liberals think its an assault rifle. Assault blower. 1 Quote Link to comment Share on other sites More sharing options...
rockmeupto125 Posted August 4, 2016 Share Posted August 4, 2016 4 hours ago, The Krypt Keeper said: how much psi is created in the stock airbox when the system is pressurized going above 110-115mph creating the ram air effect? maybe I should take a leaf blower with me next dyno run. I would estimate that you'd be getting about 15 millibar from a good ram air at that speed. That's just a tad over 0.2 psi. Your leaf blower won't cut it. Quote Link to comment Share on other sites More sharing options...
The Krypt Keeper Posted August 4, 2016 Share Posted August 4, 2016 http://www.sportrider.com/ram-air-whats-it-worth Good read about. Quote Link to comment Share on other sites More sharing options...
blackhawkxx Posted August 4, 2016 Share Posted August 4, 2016 For you guys with ram air, you could do a standing start half mile run noting top speed at a marked spot. Then tape over the air inlet and do it again noting top speed to see if there is a difference. Quote Link to comment Share on other sites More sharing options...
rockmeupto125 Posted August 4, 2016 Share Posted August 4, 2016 I got a better idea. Why don't you tape over your own air inlet and see how good that thing runs? 2 Quote Link to comment Share on other sites More sharing options...
blackhawkxx Posted August 5, 2016 Share Posted August 5, 2016 Not having ram air, it didn't dawn on me that all the air came through the ram opening. Can the ram be separated from the opening and the air box? If so, that would work. Quote Link to comment Share on other sites More sharing options...
rockmeupto125 Posted August 5, 2016 Share Posted August 5, 2016 Yeah, but I couldn't pass up the opportunity for a chuckle. I did LOL at the thought of someone actually doing it. 1 Quote Link to comment Share on other sites More sharing options...
XXitanium Posted August 9, 2016 Share Posted August 9, 2016 Please don't laugh... You're thinking aluminum? wax model w/lost wax casting maybe? They offer a 30 day free trial. I don't know SW, To hire someone who knows Solidworks flow or Inventor flow model this stuff would probably be pricey though. Quote Link to comment Share on other sites More sharing options...
superhawk996 Posted August 11, 2016 Share Posted August 11, 2016 Casting would probably be more work than just forming and welding. Could use steel, stainless, or aluminum, generally done with aluminum. You could also use fiberglass or carbon fiber. I suggested possibly reinforcing the stock airbox and reiterate that, I think it would be a cheap easy solution and you're using a design that's known to flow well. Incorporating a charge air cooler in place of the filter would be cool. Quote Link to comment Share on other sites More sharing options...
HANKSXXX Posted August 11, 2016 Share Posted August 11, 2016 Graham and I supplied 2 piece cast aluminum plenums when I was selling kits. He had them made in England and they worked well. He got out of the business rather quickly. I worked with purchasers stateside till their bikes were done. Quote Link to comment Share on other sites More sharing options...
nonam3k Posted August 20, 2016 Author Share Posted August 20, 2016 Hi guys. Can someone send me a map 0.3-0.5bar Boost ? Quote Link to comment Share on other sites More sharing options...
nonam3k Posted August 23, 2016 Author Share Posted August 23, 2016 Almost done, a few cosmetic things and remap PC3 . Quote Link to comment Share on other sites More sharing options...
HANKSXXX Posted August 23, 2016 Share Posted August 23, 2016 I sent a map to a guy who wanted one for 6 lbs. He said it barely ran as his kit and turbo was different than the one the map came from. I think you are better off starting fresh. That buggy looks awesome! Quote Link to comment Share on other sites More sharing options...
blackhawkxx Posted August 23, 2016 Share Posted August 23, 2016 4 hours ago, HANKSXXX said: That buggy looks awesome! It does look fun. Quote Link to comment Share on other sites More sharing options...
The Krypt Keeper Posted August 24, 2016 Share Posted August 24, 2016 that looks awesome... and fun check your lug nuts Quote Link to comment Share on other sites More sharing options...
xxturbo Posted March 7, 2017 Share Posted March 7, 2017 sweet looking buggy !!!!! speaking of bad ass plenums and flow Quote Link to comment Share on other sites More sharing options...
superhawk996 Posted March 7, 2017 Share Posted March 7, 2017 Dig the cooler/plenum. Quote Link to comment Share on other sites More sharing options...
XX4me Posted May 4, 2017 Share Posted May 4, 2017 Sweet. Liquid to air. Quote Link to comment Share on other sites More sharing options...
superhawk996 Posted May 4, 2017 Share Posted May 4, 2017 Yup. It's likely gonna be unbalanced between cylinders, the left will get more air than right, but at least the turbulence will be quenched by the core. Quote Link to comment Share on other sites More sharing options...
XX4me Posted May 4, 2017 Share Posted May 4, 2017 Mine may flow unevenly as well, but with the limited space available not many choices. Quote Link to comment Share on other sites More sharing options...
nonam3k Posted March 11, 2018 Author Share Posted March 11, 2018 (edited) can someone give me the number of head gaskets cometic 0.075"? I have this number H0698SP6075S. Is correct ? Edited March 11, 2018 by nonam3k Quote Link to comment Share on other sites More sharing options...
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