Truenotch Posted November 15, 2011 Share Posted November 15, 2011 I like that head! And also this thread. Quote Link to comment Share on other sites More sharing options...
Roman Posted January 12, 2012 Share Posted January 12, 2012 Found this pic of a cross section of the FWD beams motor. Quote Link to comment Share on other sites More sharing options...
xsspeed Posted January 12, 2012 Share Posted January 12, 2012 Thankyou! Quite long intake runners aren't they - thoughts on what would happen just running short trumpets and quads straight off the intake? (Could possibly make that fit before the firewall on mine - the problem would be it'd basically be sucking the air off the firewall) Quote Link to comment Share on other sites More sharing options...
mikuni Posted January 12, 2012 Author Share Posted January 12, 2012 You lose torque the shorter you go. If you adapt throttles to go straight on to one of those flanges so they stay at a good angle, it will be fine, especially in a light car. You'd want to try and run an airbox that picks up cool air from somewhere though. Picking up hot air at the back of the engine bay will be far from ideal. Quote Link to comment Share on other sites More sharing options...
xsspeed Posted January 12, 2012 Share Posted January 12, 2012 As in shift the torque curve to the right (on a plot)? I have Markku's old ITB setup which did retain the long runners so could just use that/getting ahead of myself as I need to put the engine in the damn hole first, thinking about getting it running on factory ecu first anyway, which means factory air box as they have a MAF sensor in the intake Quote Link to comment Share on other sites More sharing options...
Roman Posted January 13, 2012 Share Posted January 13, 2012 I might have a FWD beams plenum here, if you'd rather? Pretty good design tbh. Otherwise I would DEFINITELY retain the Markku engineering curved runners. Keep em as long as possible! Thankyou!Quite long intake runners aren't they Here's some testing that a guy did with a beams motor and different length trumpets: thoughts on what would happen just running short trumpets and quads straight off the intake? (Could possibly make that fit before the firewall on mine - the problem would be it'd basically be sucking the air off the firewall) As per the above graph, basically you just lose power all round! Air feed coming from the high pressure area in front of the front radiator panel thing is ideal. edit: Some ranting about the different beams plenums etc here http://www.mr2.com/forums/beams-owners- ... rison.html Quote Link to comment Share on other sites More sharing options...
mikuni Posted January 13, 2012 Author Share Posted January 13, 2012 As in shift the torque curve to the right (on a plot)? Yeah it will certainly move the torque curve up the rev range, but as described in the post above, you'll likely lose torque as well. Have a read through the thread and any links if you haven't already. It's been a while but I'm sure we covered stuffed relating to helmholts and intake runner length tuning. It could have been in the "ITB" thread though, which was another equally long and drawn out geek thread (that I also miss - it was cool to see this thread title bumped! haha). Quote Link to comment Share on other sites More sharing options...
xsspeed Posted January 13, 2012 Share Posted January 13, 2012 Yeah +1, I need to get my head around runner length/helmholtz biz. I have all the stock gear Roman, plan is/was to put it in as is, and maybe play with itb's and outboard injection for wank/tech factor. But I am sure in a little ee80 the motor will cope rather sweet as is. Quote Link to comment Share on other sites More sharing options...
mikuni Posted January 13, 2012 Author Share Posted January 13, 2012 Found the ITB thread.. all 10 pages of it But yeah, if space will allow I would 100% get the engine in and running on factory gear if you have it all. It just makes it easier to chase faults etc, as with wiring and programming to be done on top of a full conversion, often people end up chasing their tails when trying to trace faults. Drop it in, get it running, then make it faster if you need to (you won't ). Then built an ST191 with epic engine Quote Link to comment Share on other sites More sharing options...
xsspeed Posted January 13, 2012 Share Posted January 13, 2012 Lol, I need to finish another 3 projects before I start fapping about st191's again (corolla, premier, landrover). The ee80 will be my ostcc contribution for a while I think - it's lightweightness will be compensated by my lead like weight. Quote Link to comment Share on other sites More sharing options...
mikuni Posted January 13, 2012 Author Share Posted January 13, 2012 You have no build thread for ee80? If it's one of those hatch things it will probably conform with my made up (BS) rules for OSTCC (4 doors, over 4200mm long) and its crappy handling will probably compensate for any weight savings Quote Link to comment Share on other sites More sharing options...
xsspeed Posted January 13, 2012 Share Posted January 13, 2012 It's my 1986 liftback thread in sig, its the blue one (have done fuck all but change what engine I was going to use three times) - the brown gt one I just added in there Quote Link to comment Share on other sites More sharing options...
mikuni Posted January 13, 2012 Author Share Posted January 13, 2012 Oh yeah sweet, I had seen that one but thought it was for the brown one only. Quote Link to comment Share on other sites More sharing options...
Roman Posted January 13, 2012 Share Posted January 13, 2012 Found the ITB thread.. all 10 pages of it <3 that thread too, might have a re-read. But yeah, if space will allow I would 100% get the engine in and running on factory gear if you have it all. It just makes it easier to chase faults etc, as with wiring and programming to be done on top of a full conversion, often people end up chasing their tails when trying to trace faults. Drop it in, get it running, then make it faster if you need to (you won't ). Then built an ST191 with epic engine This man has absolute truth uncontrollably spewing out of every orifice Yeah +1, I need to get my head around runner length/helmholtz biz. Hmmm, it's one of those things though... It's nice to know about, but all you really need to know is... longer the better! You have no build thread for ee80? If it's one of those hatch things it will probably conform with my made up (BS) rules for OS BTCC (4 doors, over 4200mm long) and its crappy handling will probably compensate for any weight savings This would rule my face with a margin of error +- 0.00001mm Could temporarily chuck my running gear into a four door beater corona or something for the occasion? Maybe a wagon, because everyone knows the Volvo wagon BTCC car was pretty much the best thing in the universe. Quote Link to comment Share on other sites More sharing options...
mikuni Posted January 13, 2012 Author Share Posted January 13, 2012 You have no build thread for ee80? If it's one of those hatch things it will probably conform with my made up (BS) rules for OS BTCC (4 doors, over 4200mm long) and its crappy handling will probably compensate for any weight savings This would rule my face with a margin of error +- 0.00001mm Could temporarily chuck my running gear into a four door beater corona or something for the occasion? Maybe a wagon, because everyone knows the Volvo wagon BTCC car was pretty much the best thing in the universe. I really should start a thread so people can blab about their touring car creation that will never be built. Would be great fun! I know mines taken about 4 years to be tracked once, then turned back into an emtpy shell.. /have no idea what you mean about the margin of error Quote Link to comment Share on other sites More sharing options...
Roman Posted January 13, 2012 Share Posted January 13, 2012 Do it Quote Link to comment Share on other sites More sharing options...
xsspeed Posted January 13, 2012 Share Posted January 13, 2012 I will probably be an old man before I can build a corona/give it a few years. Thats some tight tolerance face ruling Quote Link to comment Share on other sites More sharing options...
mikuni Posted January 13, 2012 Author Share Posted January 13, 2012 oh lol I geddit. Will mash a fred up later and tidy up our/my crap from this fred. Quote Link to comment Share on other sites More sharing options...
Testament Posted January 13, 2012 Share Posted January 13, 2012 Thankyou!Quite long intake runners aren't they - thoughts on what would happen just running short trumpets and quads straight off the intake? (Could possibly make that fit before the firewall on mine - the problem would be it'd basically be sucking the air off the firewall) Why is this a problem, box in + heat sheild and SLR500 cowl induction? Quote Link to comment Share on other sites More sharing options...
Roman Posted January 13, 2012 Share Posted January 13, 2012 His will be an east/west setup in a FWD car... So the intake ports face the rear firewall. Standard manifold is as per that picture above though, heaps of space for it! As the engine is tipped over like 30 degrees. Quote Link to comment Share on other sites More sharing options...
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