Smaller water pump pulley needed BADLY!
#1
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Smaller water pump pulley needed BADLY!
Okay guys, who can help me:
Long story short, I need a smaller, ie underdrive water pump pulley to make my newest effort work on the C32. Would like to buy, TODAY, and have Overnighted tomorrow at my dime.
Come on Erick, Jerry, or Brandon, I KNOW YOU HAVE ONE![naughty](https://mbworld.org/forums/images/smilies/naughty.gif)
See yeah![drive](https://mbworld.org/forums/images/smilies/driving.gif)
PS: Will send payment ANYWAY you like
Long story short, I need a smaller, ie underdrive water pump pulley to make my newest effort work on the C32. Would like to buy, TODAY, and have Overnighted tomorrow at my dime.
Come on Erick, Jerry, or Brandon, I KNOW YOU HAVE ONE
![naughty](https://mbworld.org/forums/images/smilies/naughty.gif)
See yeah
![drive](https://mbworld.org/forums/images/smilies/driving.gif)
PS: Will send payment ANYWAY you like
#2
MBWorld Fanatic!
Wouldn't a smaller pulley overdrive the pump? If the circumference of the stock pulley is 2" and the smaller pulley is 1" (obviously made up #'s that are not correct but make the math easy) then for every 2 inches of belt travel the stock pulley would rotate one time and the smaller pulley would rotate twice thus overdriving the pump. Is my thinking backwards?
#3
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E36M3 race car/Ferrari F355 GTS/1973 Mini 1275GT/Fiat Abarth/ML63/SLK55
Wouldn't a smaller pulley overdrive the pump? If the circumference of the stock pulley is 2" and the smaller pulley is 1" (obviously made up #'s that are not correct but make the math easy) then for every 2 inches of belt travel the stock pulley would rotate one time and the smaller pulley would rotate twice thus overdriving the pump. Is my thinking backwards?
it's not. mramg prob has a humongous crank pulley ready to install and wants to bring the speed of the water pump back to normal.
![Big Grin](https://mbworld.org/forums/images/smilies/biggrin.gif)
#4
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E63 P30, CL500 Sport
Okay guys, who can help me:
Long story short, I need a smaller, ie underdrive water pump pulley to make my newest effort work on the C32. Would like to buy, TODAY, and have Overnighted tomorrow at my dime.
Come on Erick, Jerry, or Brandon, I KNOW YOU HAVE ONE![naughty](https://mbworld.org/forums/images/smilies/naughty.gif)
See yeah![drive](https://mbworld.org/forums/images/smilies/driving.gif)
PS: Will send payment ANYWAY you like
Long story short, I need a smaller, ie underdrive water pump pulley to make my newest effort work on the C32. Would like to buy, TODAY, and have Overnighted tomorrow at my dime.
Come on Erick, Jerry, or Brandon, I KNOW YOU HAVE ONE
![naughty](https://mbworld.org/forums/images/smilies/naughty.gif)
See yeah
![drive](https://mbworld.org/forums/images/smilies/driving.gif)
PS: Will send payment ANYWAY you like
#5
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Thread Starter
#6
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How small do you need?
#7
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Am I way off base here??
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#8
MBWorld Fanatic!
Thread Starter
[QUOTE=MRAMG1;2583587]Okay guys, who can help me:
Long story short, I need a smaller, ie underdrive water pump pulley to make my newest effort work on the C32. Would like to buy, TODAY, and have Overnighted tomorrow at my dime.
Update:
Thanks to Erick and Jerry for the help/replies for help on this part. ASP hooked me up with a little help from LET, will have results SOON![Big Grin](https://mbworld.org/forums/images/smilies/biggrin.gif)
See yeah:
Long story short, I need a smaller, ie underdrive water pump pulley to make my newest effort work on the C32. Would like to buy, TODAY, and have Overnighted tomorrow at my dime.
Update:
Thanks to Erick and Jerry for the help/replies for help on this part. ASP hooked me up with a little help from LET, will have results SOON
![Big Grin](https://mbworld.org/forums/images/smilies/biggrin.gif)
See yeah:
![drive](https://mbworld.org/forums/images/smilies/driving.gif)
#9
MBWorld Fanatic!
#10
[quote=MRAMG1;2589010]
Glad i could help, hopefully you have that car back together by now...
Okay guys, who can help me:
Long story short, I need a smaller, ie underdrive water pump pulley to make my newest effort work on the C32. Would like to buy, TODAY, and have Overnighted tomorrow at my dime.
Update:
Thanks to Erick and Jerry for the help/replies for help on this part. ASP hooked me up with a little help from LET, will have results SOON![Big Grin](https://mbworld.org/forums/images/smilies/biggrin.gif)
See yeah:![drive](https://mbworld.org/forums/images/smilies/driving.gif)
Long story short, I need a smaller, ie underdrive water pump pulley to make my newest effort work on the C32. Would like to buy, TODAY, and have Overnighted tomorrow at my dime.
Update:
Thanks to Erick and Jerry for the help/replies for help on this part. ASP hooked me up with a little help from LET, will have results SOON
![Big Grin](https://mbworld.org/forums/images/smilies/biggrin.gif)
See yeah:
![drive](https://mbworld.org/forums/images/smilies/driving.gif)
![Big Grin](https://mbworld.org/forums/images/smilies/biggrin.gif)
#11
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Thread Starter
Okay guys went for my first drive with my new pulley:
One word AWESOME![Big Grin](https://mbworld.org/forums/images/smilies/biggrin.gif)
For anybody that has wanted more umph for their C32, don't wait another day, BUY A PULLEY NOW!
I did not do the ecu tune, and the difference so far is night and day. Heck you can even hear the blower more now, if you turn down the tunes. I will post some 0-60 times today. My previous best was a 4.81
See yeah![drive](https://mbworld.org/forums/images/smilies/driving.gif)
Oh yeah I would like to thank Erick and Jerry AGAIN for all of their help and info during my install. TRUELY anyone can do this mod in their garage.
One word AWESOME
![Big Grin](https://mbworld.org/forums/images/smilies/biggrin.gif)
For anybody that has wanted more umph for their C32, don't wait another day, BUY A PULLEY NOW!
I did not do the ecu tune, and the difference so far is night and day. Heck you can even hear the blower more now, if you turn down the tunes. I will post some 0-60 times today. My previous best was a 4.81
See yeah
![drive](https://mbworld.org/forums/images/smilies/driving.gif)
Oh yeah I would like to thank Erick and Jerry AGAIN for all of their help and info during my install. TRUELY anyone can do this mod in their garage.
#13
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Thread Starter
It wasn't a smaller water pump pulley that was good, it was the LARGER crank pulley. Come on now, you knew this
![nix](https://mbworld.org/forums/images/smilies/nixweiss.gif)
The smaller water pump pulley was needed for clearance my friend
See yeah
![drive](https://mbworld.org/forums/images/smilies/driving.gif)
Going for some runs now, will post results later today
Update, rain/snow limited traction today, 5.2 was best, but again this was from MASSIVE tire spin. Side note the Computer said I was using 189 HP, last time it said 168 HP, or a 21 HP gain
![Big Grin](https://mbworld.org/forums/images/smilies/biggrin.gif)
Last edited by MRAMG1; 01-13-2008 at 02:55 PM.
#15
MBWorld Fanatic!
When
the water pump cavitates the coolant what will be the solution to the lack of cooling and the abnormal wear on the water pump?Inquiring minds would like to know.
Has anyone overdriven a water pump and not had it fail?
Has anyone overdriven a water pump and not had it fail?
![bow](https://mbworld.org/forums/images/smilies/bowdown.gif)
#17
MBWorld Fanatic!
Duh
I do read,and if you have ever taken a basic gear or pulley design class you would know that a smaller secondary pulley diameter is going to overdrive the water pump in much the same way as the larger crank pulley is overdriving the SC.
So the original question still applies.What happens when the water pump stops moving coolant?
and has anyone overdriven their water pump?
no need to insult,just asking a question.![Smilie](https://mbworld.org/forums/images/smilies/smile.gif)
So the original question still applies.What happens when the water pump stops moving coolant?
![thumbs](https://mbworld.org/forums/images/smilies/thumbsup.gif)
no need to insult,just asking a question.
![Smilie](https://mbworld.org/forums/images/smilies/smile.gif)
![bow](https://mbworld.org/forums/images/smilies/bowdown.gif)
#18
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Thread Starter
I do read,and if you have ever taken a basic gear or pulley design class you would know that a smaller secondary pulley diameter is going to overdrive the water pump in much the same way as the larger crank pulley is overdriving the SC.
So the original question still applies.What happens when the water pump stops moving coolant?
and has anyone overdriven their water pump?
no need to insult,just asking a question.![Smilie](https://mbworld.org/forums/images/smilies/smile.gif)
![bow](https://mbworld.org/forums/images/smilies/bowdown.gif)
So the original question still applies.What happens when the water pump stops moving coolant?
![thumbs](https://mbworld.org/forums/images/smilies/thumbsup.gif)
no need to insult,just asking a question.
![Smilie](https://mbworld.org/forums/images/smilies/smile.gif)
![bow](https://mbworld.org/forums/images/smilies/bowdown.gif)
yes, you are correct that at a HIGH enough speed, the pump would cavitate, causing only air to move about, with no colant flow. However, we are not talking about great enough speeds to have the pump cavitate here. Many, if not ALL overdrive crank pullies sold for our toys, give you this smaller waterpump pulley for clerance around the new larger crank pulley. There are MANY gentlemen on this fourm that have used these pullies for 20,000, 40,000 and some near 100,000 miles WITHOUT issue to their water pump. Your logic is sound my friend, but the speed isn't HIGH enough to worry about it.
See yeah
![drive](https://mbworld.org/forums/images/smilies/driving.gif)
#19
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E36M3 race car/Ferrari F355 GTS/1973 Mini 1275GT/Fiat Abarth/ML63/SLK55
I do read,and if you have ever taken a basic gear or pulley design class you would know that a smaller secondary pulley diameter is going to overdrive the water pump in much the same way as the larger crank pulley is overdriving the SC.
So the original question still applies.What happens when the water pump stops moving coolant?
and has anyone overdriven their water pump?
no need to insult,just asking a question.![Smilie](https://mbworld.org/forums/images/smilies/smile.gif)
![bow](https://mbworld.org/forums/images/smilies/bowdown.gif)
So the original question still applies.What happens when the water pump stops moving coolant?
![thumbs](https://mbworld.org/forums/images/smilies/thumbsup.gif)
no need to insult,just asking a question.
![Smilie](https://mbworld.org/forums/images/smilies/smile.gif)
![bow](https://mbworld.org/forums/images/smilies/bowdown.gif)
ohlord you're right i had it all wrong
![Smilie](https://mbworld.org/forums/images/smilies/smile.gif)
thx for the explanation mr amg. glad to know it doesn't cavitate. i know cars like my nissan nx2000 (sr20de) do have this problem.
#21
MBWorld Fanatic!
I
was puzzled on that one because I've seen anr driven pump be the cause of mysterious cooling issues on a race BMW,they ended up going to a steady speed electric driven pump and picked up about 10hp in the bargain.
![bow](https://mbworld.org/forums/images/smilies/bowdown.gif)
#23
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Thread Starter
See yeah
![drive](https://mbworld.org/forums/images/smilies/driving.gif)
And OH YEAH does it work NICE
![naughty](https://mbworld.org/forums/images/smilies/naughty.gif)