supercharger pulley
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Senior Member
Joined: May 2000
Posts: 154
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From: Royal Oak, Mi. USA
Here is he responce that I received from Magnuson Products:
"The M112 is rated at 14,000 rpm maximum and we do not recommend spinning it any faster than that. The stock pulley at max engine speed will get you there so we do not recommend any smaller pulley. In addition the pulley is a press fit on the input shaft and this press is the only thing that holds
the pulley on the shaft. It is extremely difficult, at best, to change this pulley in the field without damage to the seals and/or bearings."
Ed; Magnuson Products
"The M112 is rated at 14,000 rpm maximum and we do not recommend spinning it any faster than that. The stock pulley at max engine speed will get you there so we do not recommend any smaller pulley. In addition the pulley is a press fit on the input shaft and this press is the only thing that holds
the pulley on the shaft. It is extremely difficult, at best, to change this pulley in the field without damage to the seals and/or bearings."
Ed; Magnuson Products
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Joined: Dec 1999
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Ok guys well i was reading the last post and i noticed that sal was talking about a performance pakage type setup, chip,underdrive puley, new maf, and filter. WEll wheres it at, im curious to see the result of that package. I think the Pro-m meters wherent that great for the price making the same gains as sals filter setup.(not trying to bad mouth anything here). Also I wonder what the proto type 99s that had up to 20lbs of boost where like. oh Sal we need you to answer some Questions!
Senior Member
Joined: Jun 1999
Posts: 392
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From: Chandler, AZ
Burninout101,
As was stated before, this info, while still useful in many respects, does contain some dated information. Check out Sal’s comments on pulleys in his ‘pulley tech’ column on his website at: http://members.aol.com/NLOCsvt/pulleytech.html .
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Joel.......
99.5 White Lightning,
SVT # 0056
As was stated before, this info, while still useful in many respects, does contain some dated information. Check out Sal’s comments on pulleys in his ‘pulley tech’ column on his website at: http://members.aol.com/NLOCsvt/pulleytech.html .
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Joel.......
99.5 White Lightning,
SVT # 0056
Senior Member
Joined: Feb 2000
Posts: 319
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From: Longmont, CO USA
*sheesh*
Lately it seems like we get more and more of these non-believing types of people.
Crush69
It basically sounds like either way you are going to try this on your truck so do it. I do know that a Lightning running NOS has blown their motor with a smaller pulley, but that doesn't really apply here. I can see the reason for concern, however the only way to prove it is to try it.
No one is going to admit that a smaller pulley blew their motor if it indeed happen. At least not pubicly! I sure wouldn't considering the possibility of Ford cancelling your warranty.
The choice is yours and all we have are theories. I can't think of a single person that can answer your question with a yes or no answer.
[This message has been edited by Pacecar18 (edited 05-09-2000).]
Lately it seems like we get more and more of these non-believing types of people.
Crush69
It basically sounds like either way you are going to try this on your truck so do it. I do know that a Lightning running NOS has blown their motor with a smaller pulley, but that doesn't really apply here. I can see the reason for concern, however the only way to prove it is to try it.
No one is going to admit that a smaller pulley blew their motor if it indeed happen. At least not pubicly! I sure wouldn't considering the possibility of Ford cancelling your warranty.
The choice is yours and all we have are theories. I can't think of a single person that can answer your question with a yes or no answer.
[This message has been edited by Pacecar18 (edited 05-09-2000).]
Senior Member
Joined: Nov 1999
Posts: 665
Likes: 0
From: Houston, Tx
I had an ASP pulley on my truck for about 5 months and loved it. Truck sounded and ran great. The only problem I ran into was when I was taking it off. Had to take my truck in for warranty work and wanted to put truck back to stock. Ended up bending the pulley and had to cut it off. Will never put one back on again, but that is only due to the problems I had removing it. There is no reason to spin the motor that high unless you have some major mods done to your truck. 1BADTK has done extensive dyno tuning on his truck with the pulley and a chip, and has the shift points set, I believe, at 5200. As long as you retain the stock shift points on your chip, you should not run into any problems. I did not.
Junior Member
Joined: Feb 2001
Posts: 1
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From: Roanoke, VA USA
I have a 93 Olds 98 with the Eaton supercharger on it. The supercharger is stock. With 89k on the engine the supercharger is rattling like a diesel engine. The best info I have so far is that it takes $1,100 plus shipping and a $50 core for a rebuilt one to install to correct the problems. So from my end you need to baby this supercharger or you will be paying the dough to replace it. Pieces of advise have been, let the car idle for 1 - 2 minutes before putting the car in gear and let it run for 5-10 minutes after running it hard to allow the unit to cool back down or it will "boil in it's on oil". I am here to see if any of you folks know where I can get replacement parts for this supercharger or a company that will rebuild it cheaper. I have checked around and can get a complete supercharged 3800 engine for $1,100. So the rebuild price from Magnuson Products is way out of line, but I have yet to find anyone else cheaper. {Dealership's ship them off and charge $2,000) Thanks for the any info you may have. Bike_canoe@hotmail.com
Senior Member
Joined: Oct 2000
Posts: 668
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From: Mi.
JoeLightning,
You are correct! Not that you need my backing!
I work at Ford in the same clibration section the used to calibrate the S/C T-birds. They have been through the pully changes and worked with eaton.
JoeLightning said it best! When I start my mods i will not be going to a pully. I have been told by the engineers that have done the testing. 9hp is not worth the risk! That is my opinion only, and is in no way trying to persuade anyone from buying a pulley. You run the risk!
I hope to have feed back from Eaton soon on this exact issue. BABOLT, if you read this i know i told you different on the phone last we spoke, now that i talked with a few guys on my intentions to put the pully on! It's not a risk i'm going to take! By the way I've got Earl lined up to make a killer stainless exhaust. I'll dyno a base first. Going with a neat combination on the exhaust!
Just my .02 on the Pulley
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2001 L. (Silver)
Born on date: 1/17/01
Weight: 4,670 lb.
Eyes: Clear
Blood type: Ford Blue
Received: 1/25/01
You are correct! Not that you need my backing!
I work at Ford in the same clibration section the used to calibrate the S/C T-birds. They have been through the pully changes and worked with eaton. JoeLightning said it best! When I start my mods i will not be going to a pully. I have been told by the engineers that have done the testing. 9hp is not worth the risk! That is my opinion only, and is in no way trying to persuade anyone from buying a pulley. You run the risk!
I hope to have feed back from Eaton soon on this exact issue. BABOLT, if you read this i know i told you different on the phone last we spoke, now that i talked with a few guys on my intentions to put the pully on! It's not a risk i'm going to take! By the way I've got Earl lined up to make a killer stainless exhaust. I'll dyno a base first. Going with a neat combination on the exhaust!
Just my .02 on the Pulley
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2001 L. (Silver)
Born on date: 1/17/01
Weight: 4,670 lb.
Eyes: Clear
Blood type: Ford Blue
Received: 1/25/01
Senior Member
Joined: Jan 2001
Posts: 178
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From: San Jose, Ca. USA
It sounds to me that if you guys are only getting 9 hp from a pulley mod, that ford/eaton already supplies the supercharger with an ideal pulley from the factory.
On a side note,
My Saleen comes with the M90 Eaton blower. My stock pulley supplied 7psi. I switched it out with a 10/11psi pulley and noticed a big increase. Comparing my dyno numbers up the graph to another car (without smaller pulley), I have approximately 20-25 horsepower more through the graph. Torque increases of 30-35 across the graph, also.
Magnusson also tried to scare me away from messing with the pulley. They said I would damage the blower, etc..
I rented a pulley puller and was all set to use it. When I loosened the nut on the pulley itself, the pulley literally just slid right off. All this talk about pressed fit puzzles me, unless the M112 is set up different. Does it use a keyway like the M90??
The only problem I am having is fuel. With more air, the stock pump and MAF can't keep up. So , I am basically down on power until I can supply more fuel.
With the L, the fuel system is designed for more power, so that problem shouldn't be of concern.
Anyway, just though I'd let you know of my experiences with the Eaton M90.
------------------
00 S281 Speedster - 312 rwhp 383 rwtq
98 GSXR-750 - 123rwhp
01 Lightning coming soon.
On a side note,
My Saleen comes with the M90 Eaton blower. My stock pulley supplied 7psi. I switched it out with a 10/11psi pulley and noticed a big increase. Comparing my dyno numbers up the graph to another car (without smaller pulley), I have approximately 20-25 horsepower more through the graph. Torque increases of 30-35 across the graph, also.
Magnusson also tried to scare me away from messing with the pulley. They said I would damage the blower, etc..
I rented a pulley puller and was all set to use it. When I loosened the nut on the pulley itself, the pulley literally just slid right off. All this talk about pressed fit puzzles me, unless the M112 is set up different. Does it use a keyway like the M90??
The only problem I am having is fuel. With more air, the stock pump and MAF can't keep up. So , I am basically down on power until I can supply more fuel.
With the L, the fuel system is designed for more power, so that problem shouldn't be of concern.
Anyway, just though I'd let you know of my experiences with the Eaton M90.
------------------
00 S281 Speedster - 312 rwhp 383 rwtq
98 GSXR-750 - 123rwhp
01 Lightning coming soon.
Senior Member
Joined: Sep 2000
Posts: 851
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From: Indiana
Thor01,
Forget about the 9 HP someone claims,just look at Spiro and JL's times now,I followed there times all season long and they ran consistant 12.60's to 12.70's before pulley now they run 12.30's to 12.40's in same conditions with the pulley installed,that pulley is good for 2-3 tenths not bad for $250.00.Why would you want to waste your money on a exhaust when it has been proven time and time again that there is no gain or a loss in e.t with exhaust systems!Start with a great chip and go from there.My .02!
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HIGH ROLLER
Forget about the 9 HP someone claims,just look at Spiro and JL's times now,I followed there times all season long and they ran consistant 12.60's to 12.70's before pulley now they run 12.30's to 12.40's in same conditions with the pulley installed,that pulley is good for 2-3 tenths not bad for $250.00.Why would you want to waste your money on a exhaust when it has been proven time and time again that there is no gain or a loss in e.t with exhaust systems!Start with a great chip and go from there.My .02!
------------
HIGH ROLLER
Senior Member
Joined: Oct 2000
Posts: 668
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From: Mi.
HIGH ROLLER,
I will sit back and see how everyone is doing with the pulley! Your gonig to get your boost quicker out of the hole, true? At top end is the S/C still being efficient. Or is the air heating up?
I plan on picking up one of johnnys chips by the way!!. I know he knows his chips. No doubt! I know the type of equipment it would take to know what the S/C is doing at top end. You need a Campbelle Dataloger,data cans,pressure transduecers, thermocouples and a program.
This would tell you how hot the air is and when the S/C is at at's max efficiency. That is the only way to know with-out speculation. And a spare S/C to drill the holse for the tranduecers.
As far as the exhaust goes I've been watching the board on hp gain. I have a few ideas on how to get more power out of the exhaust. Remember where i work. I will get more out of the exhaust then people will think! It will cost$$$. I'll dyno the truck on the mods and post.
If it works. Great, i'll share my findings. I have a special vett in mind here in Dearborn that I would like to make into CHOP-SUEY! Just not willing to risk the s/c until it's realy been field tested.
Thor01
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2001 L. (Silver)
Born on date: 1/17/01
Weight: 4,670 lb.
Eyes: Clear
Blood type: Ford Blue
Received: 1/25/01
I will sit back and see how everyone is doing with the pulley! Your gonig to get your boost quicker out of the hole, true? At top end is the S/C still being efficient. Or is the air heating up?
I plan on picking up one of johnnys chips by the way!!. I know he knows his chips. No doubt! I know the type of equipment it would take to know what the S/C is doing at top end. You need a Campbelle Dataloger,data cans,pressure transduecers, thermocouples and a program.
This would tell you how hot the air is and when the S/C is at at's max efficiency. That is the only way to know with-out speculation. And a spare S/C to drill the holse for the tranduecers.
As far as the exhaust goes I've been watching the board on hp gain. I have a few ideas on how to get more power out of the exhaust. Remember where i work. I will get more out of the exhaust then people will think! It will cost$$$. I'll dyno the truck on the mods and post.
If it works. Great, i'll share my findings. I have a special vett in mind here in Dearborn that I would like to make into CHOP-SUEY! Just not willing to risk the s/c until it's realy been field tested.
Thor01
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2001 L. (Silver)
Born on date: 1/17/01
Weight: 4,670 lb.
Eyes: Clear
Blood type: Ford Blue
Received: 1/25/01
Member
Joined: Dec 2000
Posts: 67
Likes: 0
From: Macomb,MI. USA
4rts2nv - I have been running the ASP pulley with an API trans chip for about 5 months. No problems have been encountered to date - not even lost boost - the trans chip removed the torque reduction built into the PCM which made a huge improvement in performance.
I feel this is the most balanced approach to increasing overall performance. I've tried the Pro M/chip/filter with some success. This mod builds serious torque - it seems this truck at 5k pounds can use all it can get.
4rts2nv are you at Warren or Pontiac?
Cruiser
------------------
'00 White Lightning
#39 of 4966/built 2/2/00
API trans chip
ASP 2# blower pulley
K&N filter (stock box)
JL ram air (modified)
Borla exhaust
I feel this is the most balanced approach to increasing overall performance. I've tried the Pro M/chip/filter with some success. This mod builds serious torque - it seems this truck at 5k pounds can use all it can get.
4rts2nv are you at Warren or Pontiac?
Cruiser
------------------
'00 White Lightning
#39 of 4966/built 2/2/00
API trans chip
ASP 2# blower pulley
K&N filter (stock box)
JL ram air (modified)
Borla exhaust
Senior Member
Joined: Oct 2000
Posts: 668
Likes: 0
From: Mi.
BABolt,
Will do on the Special Zerks! Earl and Randy always give me crap when they see me walking in the building!
BA, I know you have picked up a few 01 wheels. Do you have the part# handy. I would like to order a set. Who is the manufacturer?
I'm going to have them widend!!
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2001 L. (Silver)
Born on date: 1/17/01
Weight: 4,670 lb.
Eyes: Clear
Blood type: Ford Blue
Received: 1/25/01
Will do on the Special Zerks!
Earl and Randy always give me crap when they see me walking in the building! BA, I know you have picked up a few 01 wheels. Do you have the part# handy. I would like to order a set. Who is the manufacturer?
I'm going to have them widend!!
------------------
2001 L. (Silver)
Born on date: 1/17/01
Weight: 4,670 lb.
Eyes: Clear
Blood type: Ford Blue
Received: 1/25/01
Member
Joined: Oct 2000
Posts: 99
Likes: 0
From: Houston, Texas
<font face="Verdana, Arial" size="2">Originally posted by 4rts2nv:
Check out www.magnusonproducts.com
I sent them an email requesting s/c info. We'll see what they have to say. Should be intersting.</font>
Check out www.magnusonproducts.com
I sent them an email requesting s/c info. We'll see what they have to say. Should be intersting.</font>
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- 2001 Lightning on order!
- '90 Pro Street Mustang GT 1/4 7.50ET@185MPH.
- '23T Altered 1/4 8.90ET@150MPH.
Member
Joined: Oct 2000
Posts: 99
Likes: 0
From: Houston, Texas
Go here if you want the truth. I am just too tired to go through the whole explination of S/C efficiency today. Hopefully this well answer your questions for me.
http://www.eaton.com/supercharger/
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http://www.eaton.com/supercharger/
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- 2001 Lightning on order!
- '90 Pro Street Mustang GT 1/4 7.50ET@185MPH.
- '23T Altered 1/4 8.90ET@150MPH.