2.57" m90 pulley
06-19-2012, 10:09 PM
#1
2nd Gear Member
Thread Starter
Join Date: Jun 2011
Location: Ohio
Posts: 177
2.57" m90 pulley
Will this pulley fit my m90 supercharger. Will I need a 90mm idler pulley to go with it if it fits? What exactly does press fit mean? Thanks
http://www.blowbyracing.com/20ro2supu.html
http://www.blowbyracing.com/20ro2supu.html
06-20-2012, 10:32 AM
#2
5th Gear Member
Join Date: Jan 2009
Location: Mass
Posts: 2,662
It says its for a Gen V eaton, which leads me to believe its an M90.
Also, you can see via the picture that the blower is small - again M90.
Do you need a bigger idler? Don't know. Call and ask.
Press fit means you need a special pulley puller tool to get the old pulley off, and a new one one. You can rent them at your local parts store.
Also, you can see via the picture that the blower is small - again M90.
Do you need a bigger idler? Don't know. Call and ask.
Press fit means you need a special pulley puller tool to get the old pulley off, and a new one one. You can rent them at your local parts store.
06-20-2012, 01:39 PM
#3
2nd Gear Member
Thread Starter
Join Date: Jun 2011
Location: Ohio
Posts: 177
It says its for a Gen V eaton, which leads me to believe its an M90.
Also, you can see via the picture that the blower is small - again M90.
Do you need a bigger idler? Don't know. Call and ask.
Press fit means you need a special pulley puller tool to get the old pulley off, and a new one one. You can rent them at your local parts store.
Also, you can see via the picture that the blower is small - again M90.
Do you need a bigger idler? Don't know. Call and ask.
Press fit means you need a special pulley puller tool to get the old pulley off, and a new one one. You can rent them at your local parts store.
06-20-2012, 01:48 PM
#4
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Join Date: Jun 2011
Location: Ohio
Posts: 177
Ha I just saw on this website that VMP upgrade a roushcharger to a 2.57" pulley and a 90mm idler, so I'm assuming the 90mm idler is needed to make up for the extra slack from a smaller SC pulley. Thanks for your help!
06-21-2012, 08:29 AM
#6
1st Gear Member
Join Date: Jun 2012
Location: MA
Posts: 63
Yes a 90mm idler pulley will also be needed to keep the same belt. Now the M90 came with two versions of the pullies. from 05 to 08 it was keyed. 09 and up it is pressed fit. I got my SC last year so it is the 09 version. I went with the VMP 2.49" pulley with a 90mm idler.
You will need a tune and should be running a CAI type filter. eithe rthe roush or I run the steeda. The pulley makes a huge difference as it puts down more power and builds boost so much faster.
You will need a tune and should be running a CAI type filter. eithe rthe roush or I run the steeda. The pulley makes a huge difference as it puts down more power and builds boost so much faster.
06-21-2012, 09:49 AM
#7
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Join Date: Jun 2011
Location: Ohio
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Yes a 90mm idler pulley will also be needed to keep the same belt. Now the M90 came with two versions of the pullies. from 05 to 08 it was keyed. 09 and up it is pressed fit. I got my SC last year so it is the 09 version. I went with the VMP 2.49" pulley with a 90mm idler.
You will need a tune and should be running a CAI type filter. eithe rthe roush or I run the steeda. The pulley makes a huge difference as it puts down more power and builds boost so much faster.
You will need a tune and should be running a CAI type filter. eithe rthe roush or I run the steeda. The pulley makes a huge difference as it puts down more power and builds boost so much faster.
06-21-2012, 10:08 AM
#9
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Join Date: Jun 2012
Location: MA
Posts: 63
Near Worcester
Ok I will go to the regional section and check it out.
09 the stock pulley had me at 5.5 psi and the 2.49 went up to 8.9PSI. I really doubt 2.57 to 2.49 will yield much difference. Stock pulley numbers were 385rwhp 360rwtq new pulley 422rwhp 417 rwtq. I recommend using the stock pulley for about a month to insure that the SC has no issues. Once you change the pulley the warranty on the SC is voided.
Ok I will go to the regional section and check it out.
09 the stock pulley had me at 5.5 psi and the 2.49 went up to 8.9PSI. I really doubt 2.57 to 2.49 will yield much difference. Stock pulley numbers were 385rwhp 360rwtq new pulley 422rwhp 417 rwtq. I recommend using the stock pulley for about a month to insure that the SC has no issues. Once you change the pulley the warranty on the SC is voided.
06-21-2012, 03:10 PM
#10
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Join Date: Jun 2011
Location: Ohio
Posts: 177
Near Worcester
Ok I will go to the regional section and check it out.
09 the stock pulley had me at 5.5 psi and the 2.49 went up to 8.9PSI. I really doubt 2.57 to 2.49 will yield much difference. Stock pulley numbers were 385rwhp 360rwtq new pulley 422rwhp 417 rwtq. I recommend using the stock pulley for about a month to insure that the SC has no issues. Once you change the pulley the warranty on the SC is voided.
Ok I will go to the regional section and check it out.
09 the stock pulley had me at 5.5 psi and the 2.49 went up to 8.9PSI. I really doubt 2.57 to 2.49 will yield much difference. Stock pulley numbers were 385rwhp 360rwtq new pulley 422rwhp 417 rwtq. I recommend using the stock pulley for about a month to insure that the SC has no issues. Once you change the pulley the warranty on the SC is voided.