kpr Posted August 25, 2020 Author Share Posted August 25, 2020 Yeh think may pursue the big tapered idea. The 45's look decent in some places. But not so keen how jumps around so much. Kinda cool how can see it brick wall soon as run out of airflow in the runners. Someone bring said beams here and will dyno it for a small fee 2 Quote Link to comment Share on other sites More sharing options...
Roman Posted August 25, 2020 Share Posted August 25, 2020 That's the problem though, no one has one that goes 3 1 Quote Link to comment Share on other sites More sharing options...
Roman Posted August 25, 2020 Share Posted August 25, 2020 Also I reckon it's time to try a plenum next Quote Link to comment Share on other sites More sharing options...
kpr Posted August 25, 2020 Author Share Posted August 25, 2020 Im getting pretty good at melting pvc into shape. although melting some electrical conduit and down pipes into a plenum maybe beyond my capabilities. whilst fumes created being the death of my last few brain cells I do keep forgetting to wack the hilux plenum on there. would probably do ok 1 Quote Link to comment Share on other sites More sharing options...
Roman Posted August 25, 2020 Share Posted August 25, 2020 Yeah def chuck the hilux plenum on there! Would be interesting to see differences of different length intlet pipes on the front of it. Quote Link to comment Share on other sites More sharing options...
Celica RA45 Posted August 25, 2020 Share Posted August 25, 2020 its always good to read what others are doing ,my 3sge is trd inlet, 50mm throttle taper out to 52mm. 2stage is 52mm out to 55mm and ram tube is 55mm out to 65mm with 8 injectors ,the other 4 are 230mm further away than the inboards ,i still get some misting or stand off at about 7000 and also i use to lean 1 cyl out in 500rpm range .i tune every cyl now from idle to redline with my big air box on ...the biggest difference on using inboards only or out boards only is about more torque and more hp ,about 12kws across the rev range higher than just inboards 2 Quote Link to comment Share on other sites More sharing options...
Stu Posted August 25, 2020 Share Posted August 25, 2020 3 hours ago, Truenotch said: We really need to get a Beams on that dyno... Do head gaskets come in 5 packs? 2 1 Quote Link to comment Share on other sites More sharing options...
Celica RA45 Posted August 26, 2020 Share Posted August 26, 2020 kpr you said you went from toyota throttles up to 52mm did you notice your torque dropped at all ,also do you think you have lost airspeed by going up to a bigger throttle as well Quote Link to comment Share on other sites More sharing options...
kpr Posted August 26, 2020 Author Share Posted August 26, 2020 At wide open throttle, the power curve was identical. going from 47mm Toyota throttles to the bmw 52mm throttles. Only the mid section changed, so kinda make sense. working from the head out. the adapter and throttles were changed. the 110mm section after the throttles was machined to shallower taper to compensate for the 3mm bigger throttle inlet opening, the top 75mm trumpet and bellmouth were unchanged Quote Link to comment Share on other sites More sharing options...
Celica RA45 Posted August 26, 2020 Share Posted August 26, 2020 ok so if your car was a race car and was at tight race tracks the 47mm throttles would be faster coming out of the corners and in lap times as well Quote Link to comment Share on other sites More sharing options...
kpr Posted August 26, 2020 Author Share Posted August 26, 2020 Also, I built this abortion today 6 Quote Link to comment Share on other sites More sharing options...
kpr Posted August 26, 2020 Author Share Posted August 26, 2020 2 minutes ago, Celica RA45 said: ok so if your car was a race car and was at tight race tracks the 47mm throttles would be faster coming out of the corners and in lap times as well How so if the power is the same? Quote Link to comment Share on other sites More sharing options...
Celica RA45 Posted August 26, 2020 Share Posted August 26, 2020 im talking about midrange power that pulls you out of the corner ,what size exhaust are you running as well Quote Link to comment Share on other sites More sharing options...
kpr Posted August 26, 2020 Author Share Posted August 26, 2020 Yeh, I meant the power / torque was identical throughout the whole rev range. exhaust is 3" Quote Link to comment Share on other sites More sharing options...
Celica RA45 Posted August 26, 2020 Share Posted August 26, 2020 my air box is 12litres in volume and im using 150mm dia piping going in with a big K&N filter and 2 stage inside 1 Quote Link to comment Share on other sites More sharing options...
Celica RA45 Posted August 26, 2020 Share Posted August 26, 2020 oh ok fine then ,i tried 48mm quad 50 mm quads and 52mm quads on my 2 litre beams and the 50mm were the best after 7600 rpm ,mine redlines at 9200 where max hp is Quote Link to comment Share on other sites More sharing options...
kpr Posted August 26, 2020 Author Share Posted August 26, 2020 Sorry when i said mid section i was talking about the runners rather than power curve. What effect does your airbox have vs open throttles? Quote Link to comment Share on other sites More sharing options...
Celica RA45 Posted August 26, 2020 Share Posted August 26, 2020 im using my map and air temp inside the air box ,but i also dropped 20c in air temp as my intake is in front of the radiator ,so on 25 degree days it sits at about 20c coming in past the air temp , before the airbox radiant heat was up to 40 c going past the air inlet 2 Quote Link to comment Share on other sites More sharing options...
Celica RA45 Posted August 26, 2020 Share Posted August 26, 2020 this is the both sides of the box 2 Quote Link to comment Share on other sites More sharing options...
Celica RA45 Posted August 26, 2020 Share Posted August 26, 2020 this iis what it looks like at the moment 3 Quote Link to comment Share on other sites More sharing options...
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