TRD SC Ordered
10-14-2005, 09:36 PM
#61
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Join Date: Mar 2005
Posts: 176
OK, here is an attempt at some clarification....
Underdrive means to slow down.
Overdrive means to speed up.
Putting an underdrive crank pulley on a supercharged car would slow all accessories down, including the supercharger which is also an accessory itself.
putting an overdrive crank pulley on a supercharged car will speed up the supercharger and increase boost. another method of getting more boost would be to replace the pulley on the SC itself with an overdrive pulley. This pulley on the SC is the one that is the so called tamperproof pulley.
So what do we do if we do not want to mess with this tamperproof piece? We get an Overdrive Crank pulley kit. Like the one mentioned earlier from www.NonStopTuning.com
And I can tell you from first hand experience, an overdrive crank pulley will not speed up the water pump or any other accessories so much that anything bad will happen as a result. ask the hundreds of Supercharged MR2 owners using overdrive NST pulley kits for the past 2 decades!
Underdrive means to slow down.
Overdrive means to speed up.
Putting an underdrive crank pulley on a supercharged car would slow all accessories down, including the supercharger which is also an accessory itself.
putting an overdrive crank pulley on a supercharged car will speed up the supercharger and increase boost. another method of getting more boost would be to replace the pulley on the SC itself with an overdrive pulley. This pulley on the SC is the one that is the so called tamperproof pulley.
So what do we do if we do not want to mess with this tamperproof piece? We get an Overdrive Crank pulley kit. Like the one mentioned earlier from www.NonStopTuning.com
And I can tell you from first hand experience, an overdrive crank pulley will not speed up the water pump or any other accessories so much that anything bad will happen as a result. ask the hundreds of Supercharged MR2 owners using overdrive NST pulley kits for the past 2 decades!
10-14-2005, 09:44 PM
#63
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Join Date: Jul 2005
Location: born and raised hawaii
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im too lazy to read to see if anyone put the same thing im about to, but good luck with it. i hear alot of bad things about the TRD sc. friend had it and it lags alot. doesnt really kick in till about 3-4k rpm, not sure why, but it was wierd. you may want an over sized pulley for more boost, and a top, or front mount intercooler to help it along. good luck though
10-14-2005, 09:48 PM
#64
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Join Date: Apr 2005
Posts: 2,270
Originally Posted by crazy_kat_matt
im too lazy to read to see if anyone put the same thing im about to, but good luck with it. i hear alot of bad things about the TRD sc. friend had it and it lags alot. doesnt really kick in till about 3-4k rpm, not sure why, but it was wierd. you may want an over sized pulley for more boost, and a top, or front mount intercooler to help it along. good luck though
10-14-2005, 09:51 PM
#65
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Join Date: Mar 2005
Location: Burke, VA
Posts: 1,326
Originally Posted by reagulator
thats why you get an OVERDRIVE pulley.
http://www.nonstoptuning.com/pKitToySciTCscd.htm
http://www.nonstoptuning.com/pKitToySciTCscd.htm
Hell, for all I care, they can call it a "tea-bagger" pulley. As long as it does the job, I don't give a crap
10-14-2005, 09:53 PM
#66
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Join Date: Apr 2005
Posts: 2,270
Originally Posted by 87na
OK, here is an attempt at some clarification....
Underdrive means to slow down.
Overdrive means to speed up.
Putting an underdrive crank pulley on a supercharged car would slow all accessories down, including the supercharger which is also an accessory itself.
putting an overdrive crank pulley on a supercharged car will speed up the supercharger and increase boost. another method of getting more boost would be to replace the pulley on the SC itself with an overdrive pulley. This pulley on the SC is the one that is the so called tamperproof pulley.
Underdrive means to slow down.
Overdrive means to speed up.
Putting an underdrive crank pulley on a supercharged car would slow all accessories down, including the supercharger which is also an accessory itself.
putting an overdrive crank pulley on a supercharged car will speed up the supercharger and increase boost. another method of getting more boost would be to replace the pulley on the SC itself with an overdrive pulley. This pulley on the SC is the one that is the so called tamperproof pulley.
10-14-2005, 10:17 PM
#68
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Team ScioNRG
Join Date: Mar 2005
Location: Burke, VA
Posts: 1,326
Originally Posted by The_Instigator
Originally Posted by 87na
OK, here is an attempt at some clarification....
Underdrive means to slow down.
Overdrive means to speed up.
Putting an underdrive crank pulley on a supercharged car would slow all accessories down, including the supercharger which is also an accessory itself.
putting an overdrive crank pulley on a supercharged car will speed up the supercharger and increase boost. another method of getting more boost would be to replace the pulley on the SC itself with an overdrive pulley. This pulley on the SC is the one that is the so called tamperproof pulley.
Underdrive means to slow down.
Overdrive means to speed up.
Putting an underdrive crank pulley on a supercharged car would slow all accessories down, including the supercharger which is also an accessory itself.
putting an overdrive crank pulley on a supercharged car will speed up the supercharger and increase boost. another method of getting more boost would be to replace the pulley on the SC itself with an overdrive pulley. This pulley on the SC is the one that is the so called tamperproof pulley.
10-14-2005, 10:51 PM
#69
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Join Date: Sep 2004
Location: Portland, OR
Posts: 573
Originally Posted by jmiller20874
, it is capped off by a tamper-proof device to keep people from swapping pulleys.
10-14-2005, 11:49 PM
#70
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Location: Germantown, MD
Posts: 2,004
Originally Posted by apexjr
Originally Posted by jmiller20874
, it is capped off by a tamper-proof device to keep people from swapping pulleys.
Originally Posted by jmiller20874
, it is capped off by a tamper-proof device to keep people from swapping pulleys if they don't want Toyota to find out.
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