kpr Posted July 15, 2013 Share Posted July 15, 2013 someone said itb's if the port entry area is slightly smaller than the itb's, you are winning. as you can run a taper down to port size. if you have room, bonnet clearance and front runners. i would make a short straight inlet to adapt itb's to port. so throttles point straight up. then run bends off the top of the itb's to get the length if the itb's are alot bigger than port (not likely) i would try move them away from the head more. if can be done without sharp bends. Quote Link to comment Share on other sites More sharing options...
Spencer Posted July 15, 2013 Share Posted July 15, 2013 Haha took you awhile to get here, but yes good suggestions. Quote Link to comment Share on other sites More sharing options...
d.p.n.s Posted July 15, 2013 Share Posted July 15, 2013 mmmmm threw the bonnet 4 Quote Link to comment Share on other sites More sharing options...
mikuni Posted July 16, 2013 Share Posted July 16, 2013 Just a nice simple adpator onto a custom of factory intake manifold, positioning the throttles like this (but runners as long as possible) With two separate air boxes, one on each side. And gigantic intakes feeding clean air from either side of the radiator, or under the headlight, into each air box. Preferably all carbon so it still sounds loud as crap. Look for pictures of the Nissan V8 Supercar engine for the intake pipes. Oh yeah. Quote Link to comment Share on other sites More sharing options...
d.p.n.s Posted July 16, 2013 Share Posted July 16, 2013 nice and compact 2002 Triumph Sprint ST 955i not bad for 50 bucks us + postage http://www.ebay.co.uk/itm/2002-Triumph-Sprint-ST-955i-throttle-body-bodies-/350809338558?pt=Motorcycles_Parts_Accessories&hash=item51adddb2be Quote Link to comment Share on other sites More sharing options...
d.p.n.s Posted July 16, 2013 Share Posted July 16, 2013 2008 1050 throttle bodies 60 us....pretty fucking sweet http://www.ebay.co.uk/itm/2008-Triumph-Sprint-ST-1050-throttle-body-bodies-/230992474276?pt=Motorcycles_Parts_Accessories&hash=item35c83970a4 Quote Link to comment Share on other sites More sharing options...
keltik Posted July 16, 2013 Author Share Posted July 16, 2013 and by that you mean ITB's and cams ? Just giving glen some credit for calling it 2 years ago. 2 Quote Link to comment Share on other sites More sharing options...
keltik Posted July 16, 2013 Author Share Posted July 16, 2013 Chur for advice everyone! Going to be a couple weeks before I can do some mocking up with the ITB's so until then ill be getting the front Y pipe remade in the exhaust to sit a bit higher. Then I can get over my driveway again. I think one of my CV's has started clattering away so time to find out which one ive upset. The LHR inner has been running without grease for 2 years so I think it might be that one. Now at 240,000km and all of the CV's are original. Quote Link to comment Share on other sites More sharing options...
Evan Posted July 24, 2013 Share Posted July 24, 2013 hey man. I was doing a google search and came across some thing you posted on some other forum about you tearing apart your old engine. Do you know what the engine internal dimensions on these (Im assuming 30D and 30R are the same) are like compared to ej20 stuff? like the big end sizes, rod lengths etc?? wikipedia says the ej has a larger bore then ez but theres stuff all info anywhere else and Im curious Quote Link to comment Share on other sites More sharing options...
keltik Posted July 24, 2013 Author Share Posted July 24, 2013 I might have some information.....Excuse me while i type it out rather shittily Engine: EZ30 (BE/BH non AVCS) / EZ30 (BL/BP AVCS)/ EJ20 (BE/BH turbo) / EJ20 (BE/BH non turbo) / EJ25 (BE/BH non turbo) Bore: 89.2 / 89.2 / 92 / 92 / 99.5 Stroke: 80 / 80 / 75 / 75 / 79 Compression Ratio: 10.7 / 10.7 / 9.0 / 10.0 / 10.0 Wrist Pin Diameter: 22 / 22 / ?? / 23 / 23 Crank Pin Diameter: 52 / 52 / 52 / 52 / 52 Dont know rod length so i went out and measured a piston ive got lying around. Very unscientific measuring came out about 138mm...+-10mm Hope that helps answer whatever crazy thing youre trying to do 1 Quote Link to comment Share on other sites More sharing options...
keltik Posted July 24, 2013 Author Share Posted July 24, 2013 Also, i discovered if you dial in 40 degrees of intake cam advance and activate the high lift lobes - you get quite a rancid idle. But its good for the lols. 2 Quote Link to comment Share on other sites More sharing options...
Evan Posted July 24, 2013 Share Posted July 24, 2013 theres a bunch of sweet numbers I was after. cheers for that. Quote Link to comment Share on other sites More sharing options...
MRWEST Posted July 24, 2013 Share Posted July 24, 2013 after requestiing htat info you need to share what something your upto ha Quote Link to comment Share on other sites More sharing options...
Truenotch Posted July 24, 2013 Share Posted July 24, 2013 What's your VVTi map look like Ben? Degrees vs RPM please. Quote Link to comment Share on other sites More sharing options...
keltik Posted July 24, 2013 Author Share Posted July 24, 2013 What's your VVTi map look like Ben? Degrees vs RPM please. It looks quite a lot like this; Im so full of useful information tonight. Quote Link to comment Share on other sites More sharing options...
Testament Posted July 24, 2013 Share Posted July 24, 2013 what does the number mean though? cam advance or retard or what? how come its more in the midrange then goes back with higher rpm? Quote Link to comment Share on other sites More sharing options...
keltik Posted July 24, 2013 Author Share Posted July 24, 2013 Target degrees of advance for the inlet cams. I believe the part throttle settings are used for an EGR effect and at full throttle the timing is advanced further to promote scavenging in the midrange. At higher rpm, the scavenging effect isn't as beneficial as having the intake valves open for longer on the intake stroke. Quote Link to comment Share on other sites More sharing options...
Rookie Posted July 24, 2013 Share Posted July 24, 2013 Also it backs off because after peak torque you need less inlet advance to keep the torque up. 1 Quote Link to comment Share on other sites More sharing options...
keltik Posted July 24, 2013 Author Share Posted July 24, 2013 Yeah that ^ ....or something. Im no expert. All I know is its a bit limited since duration is fixed and exhaust timing is fixed. The only things I can change are lift and advance/overlap on the intake. Theres probably a bit more tinkering that could be done on this table but dyno time aint cheap! Quote Link to comment Share on other sites More sharing options...
Vintage Grumble Posted July 25, 2013 Share Posted July 25, 2013 AINT NOONE GOT MONEY FO DAT TIME. Apart from Ned. 2 Quote Link to comment Share on other sites More sharing options...
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