Adrian6T T.P.I.S. Donating Members 2,578 Member For: 19y 11m 10d Gender: Male Location: SoR, WA Posted 23/01/07 10:00 AM Share Posted 23/01/07 10:00 AM Great work Ben. Looks the goods too. Link to comment Share on other sites More sharing options...
DBOSS Faster than any BTA,XTC,Autotech, Nizpro and Tunehouse car Member 3,918 Member For: 21y 4m 22d Location: D SHIRE! Posted 23/01/07 10:02 AM Share Posted 23/01/07 10:02 AM Good result Ben well done mate Link to comment Share on other sites More sharing options...
SCRIBR Yaris member Member 4,486 Member For: 18y 4m 23d Gender: Male Posted 23/01/07 10:37 AM Share Posted 23/01/07 10:37 AM (edited) excellent work!looks great in the bay!obviously works a treat too!well done and may you get much enjoyment out of it!good luck with that 11.5 Edited 23/01/07 10:37 AM by SCRIBR Link to comment Share on other sites More sharing options...
F6 UTE - Track Bound EVO III - Member 3,367 Member For: 19y 10m 29d Gender: Male Location: Strapped in and holding on Posted 23/01/07 11:30 AM Author Share Posted 23/01/07 11:30 AM That's awesome - so are you still going back to the drawing board or are you content with this one?←Just the shape tabby. Gotta find out for myself if a square box has any negligible effect over a nice rounded one...excellent work!looks great in the bay!obviously works a treat too!well done and may you get much enjoyment out of it!good luck with that 11.5 ←That's the key thing I think..The enjoyment that comes from turning a piece of sheet alloy into a working piece in an engine bay, with only my own theory base behind it....A few of the guys that have seen it are either amazed I made it from scratch, or think I'm an engineer of some kind Good result Ben well done mate ←Don't worry DBIATCH, I'm chasing down your 11.5's Cheers.Great work Ben. Looks the goods too.←Cheers Adrian, are you coming to the next track day?? March?? Link to comment Share on other sites More sharing options...
Adrian6T T.P.I.S. Donating Members 2,578 Member For: 19y 11m 10d Gender: Male Location: SoR, WA Posted 23/01/07 12:36 PM Share Posted 23/01/07 12:36 PM Great work Ben. Looks the goods too.←Cheers Adrian, are you coming to the next track day?? March??←Buy the looks of my tyresim not. I got to get a few more k's out of these. You should have fun. Link to comment Share on other sites More sharing options...
MrBean Member 400 Member For: 18y 6m 7d Location: Melbourne Posted 23/01/07 02:07 PM Share Posted 23/01/07 02:07 PM (edited) Looking Good, F6.What is the final volume of your intake plenum? Close to engine capacity (4l) ?Thanx for your feedback.Kind regards,MrBean Edited 23/01/07 02:08 PM by MrBean Link to comment Share on other sites More sharing options...
F6 UTE - Track Bound EVO III - Member 3,367 Member For: 19y 10m 29d Gender: Male Location: Strapped in and holding on Posted 23/01/07 11:16 PM Author Share Posted 23/01/07 11:16 PM Volume is not engine capacity.. It's something I thought would work.. Actually, I made it first, then measured it!! But I had an idea of where I wanted to go with it..There is no real set theory on the volume, ranging from = to engine capacity to double engine capacity.. Link to comment Share on other sites More sharing options...
MrBean Member 400 Member For: 18y 6m 7d Location: Melbourne Posted 24/01/07 04:43 AM Share Posted 24/01/07 04:43 AM Ok, let me re-phrase:Your engine has a bore x stroke x no cylinders to give a certain displacement. In our case, close to 4liters.So, how much liquid can your plenum keep? Anyway, depending application, plenum size do vary, you are correct, one of the great engine builders of all time, Smokey Yunick from the USA reckons for turbo applications the plenum volume should be close to total displacement of engine.This yields very good throttle response, and good reservoir capacity on sudden full-throttle acceleration, giving turbo decent time to spool up before a significant drop in charge pressure occurs.Anyway the close to ideal solution for road-race applications, final application will determine plenum chamber volume in turbo applications. Racing on twisty roadways with lots of on/off type driving will benefit more from a smaller relative plenum, and for constant high-speed (read rpm) a larger plenum will do a lot to dampen oscillations in intake pressure, and thus powerlevels.So yes, just my titbit, just wondered out of sake of curiosity what your volume was, since it made a significant difference in power levels, probably due to lower restriction, thus higher charge pressure realized at the ports, and you mentioned better throttle response, ascribed to the smaller plenum volume, ridding your intake system of the long lengths of piping.Most likely you will feel an immediate response of the line, big improvement, and then a quicker build of your torque-curve due to smaller volume to pressurize.So, average power/torque should have increased?Thanx for the feedback anyway, it is appreciated.Best regards,MrBean. Link to comment Share on other sites More sharing options...
turbotrana Member 2,586 Member For: 21y 7m 14d Gender: Male Posted 24/01/07 07:42 AM Share Posted 24/01/07 07:42 AM Good on ya for doing that back to back testing. You said you used 10mm base and 6mm for the sides. There is another guy on one of the ford forums who has made a few like yours and I think he uses 8mm for the base and 4mm for the sides and that he has not had any problems. Just might save you a bit of work using thinner materials. Ally is not cheap either.Have you got a pic on the underside? Link to comment Share on other sites More sharing options...
F6 UTE - Track Bound EVO III - Member 3,367 Member For: 19y 10m 29d Gender: Male Location: Strapped in and holding on Posted 24/01/07 08:18 AM Author Share Posted 24/01/07 08:18 AM Cheers.. I have overlayed the graphs, so I'll have a 3 run comparison to study when all my 'testing' is complete. Underside I did differently, so it's like the winged keel I suppose.. So no pikkies Link to comment Share on other sites More sharing options...
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