d.p.n.s Posted November 10, 2010 Share Posted November 10, 2010 ive done a quick search on here as i thought i had seen a link to a pulley calculator...but i can find it. but thats what im after or if someone can tell me the size i will need its a ca18det and a sc14 i want the sc14 to be hitting 10,000rpm as the motor is hitting 7,500. at the moment the sc14 has a pulley that is 90mm or 3.5"aprox accross the face. cheers dan Quote Link to comment Share on other sites More sharing options...
KKtrips Posted November 10, 2010 Share Posted November 10, 2010 Its a direct computation from pulley sizes If you have a driven pulley that is 90mm and the drive pulley will run at 7500 rpm then (90/7500)*10000 = 120mm is the size drive pulley you need I assume you are using a multi rib belt and the 90mm is the diameter of either the valleys or peaks of the pulley ribs? V-belt pulleys may be a different calculation to allow for the depth of the V but I'm not sure... Quote Link to comment Share on other sites More sharing options...
RUNAMUCK Posted November 10, 2010 Share Posted November 10, 2010 I can get you a deal on custom made puleys for your crank if you need Dan. 1 Quote Link to comment Share on other sites More sharing options...
Vintage Grumble Posted November 10, 2010 Share Posted November 10, 2010 SC14 is the toyota S/C aint it? dont these melt the blades if you spin them to fast? Pretty sure you could only do minimal over drive on them before they shat their pants? Quote Link to comment Share on other sites More sharing options...
d.p.n.s Posted November 10, 2010 Author Share Posted November 10, 2010 Its a direct computation from pulley sizes If you have a driven pulley that is 90mm and the drive pulley will run at 7500 rpm then (90/7500)*10000 = 120mm is the size drive pulley you need I assume you are using a multi rib belt and the 90mm is the diameter of either the valleys or peaks of the pulley ribs? V-belt pulleys may be a different calculation to allow for the depth of the V but I'm not sure... sweet thanks mate I can get you a deal on custom made puleys for your crank if you need Dan. ill keep you in mind mate then i get to that point. SC14 is the toyota S/C aint it? dont these melt the blades if you spin them to fast? Pretty sure you could only do minimal over drive on them before they shat their pants? from what ive been reading 10000 seems to be the limit so thats why im aming for the sc14 limit to be the same as the engines limit. Quote Link to comment Share on other sites More sharing options...
jakesae101 Posted November 10, 2010 Share Posted November 10, 2010 SC14 is the toyota S/C aint it? dont these melt the blades if you spin them to fast? Pretty sure you could only do minimal over drive on them before they shat their pants? sc14 10,000 rpm max sc12 14,000 rpm max been forcing over 1 bar out of my sc12 for a while now Quote Link to comment Share on other sites More sharing options...
kpr Posted November 10, 2010 Share Posted November 10, 2010 how come the sc12 can spin so much faster. isnt the sc14 just a longer version of the sc12? Quote Link to comment Share on other sites More sharing options...
RUNAMUCK Posted November 10, 2010 Share Posted November 10, 2010 Will the blower be disengaged once the turbo has spooled? if so you could overdrive the hell out of it and not have to worry about max speed as it'd cut out before it caught fire. TBH, I've forgotten which way you were going in the finish. But after spending far far to long thinking about it, I reckon youd be best to have the blower pumping into the turbo, with a secondary inlet valve onto the trubo to let it draw air in from other than the blower once the turbo has spooled. Quote Link to comment Share on other sites More sharing options...
d.p.n.s Posted November 10, 2010 Author Share Posted November 10, 2010 was going to run the sc full time and the turbo threw a flapper door still loads to work out but i want to get them both bolted in there and see how i will work it all as the escort engien bay insnt very big. i have bought a topmount manifold and gt3540 turbo so its a start. i am hoping to have the mock up block and head with the turbo all bolted in by sat. so ill post some pics of the room i have to play with then. dan Quote Link to comment Share on other sites More sharing options...
Yowzer Posted November 10, 2010 Share Posted November 10, 2010 how come the sc12 can spin so much faster. isnt the sc14 just a longer version of the sc12? Dunno about this eh, but I have heard a SC12 will actually blast out more air because if it's higher redline. Either way they both tend to shit things up the fuck once they crank over 12psi poost - overheat and stz Maths SC12, 1.2L per Rev x 14,000RPM = 16,800L per Min of air SC14 however can do 14,000L per min at 10,000RPM Whether this math actually translates into a real world advantage, I dunno. Quote Link to comment Share on other sites More sharing options...
tomypg Posted November 11, 2010 Share Posted November 11, 2010 Where can I get a new pulley made for my SC12? Looking at running more boost than my current set-up. Quote Link to comment Share on other sites More sharing options...
Spencer Posted November 11, 2010 Share Posted November 11, 2010 Possibly here http://www.nonstoptuning.com/pKitToyMR2SC12.htm Theres a place in aussie too, cant find the website EDIT: Boom, 1 million pulley options here http://www.pulleybros.com.au/page4.php Quote Link to comment Share on other sites More sharing options...
tomypg Posted November 11, 2010 Share Posted November 11, 2010 Chur Quote Link to comment Share on other sites More sharing options...
jakesae101 Posted November 12, 2010 Share Posted November 12, 2010 you can use i think its a au falcon air con pulley on the supercharger buy obviously you loose the clutched feature on it Quote Link to comment Share on other sites More sharing options...
phr34kr Posted November 12, 2010 Share Posted November 12, 2010 tomypg's car redlines at 7k and seeing as the sc12 can rev twice that i thought that cam pulleys would be a good option as they are easy to find and cheap as well as the benefit of a toothed belt. Quote Link to comment Share on other sites More sharing options...
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