Re: [Chevelle-list] electric fan mounting question
I just put dual pullers on my 68 and the meter barely gets past 1/4 off cold - and it functions correctly.Just gotta watch stray paper sucking up against the outside of the radiator. Pullers will sure hold it there. They work great ( in Texas) and were rigged up as dual connections in case one goes bad the other is still working. They say getting rid of the bolt on fan adds to hp as well. And the elimination of a spinning mass sure won't hurt the water pump feelings. Plus it looks cool ( pardon the pun) . It ain't always what ya do, it's sometimes how ya look while you're doing it. Scott - Original Message - From: Bob Holtzman [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, June 26, 2004 1:50 PM Subject: [Chevelle-list] electric fan mounting question I want to put an electric fan on my '65 Malibu. The question is whether to mount it as a pusher or puller. I've been advised to mount it in front of the radiator (pusher) and leave the present 7 blade clutch mounted fan in place. It seems to me that the two fans could fight. In other words, it seems that there would be some engine speed level below which the electric fan is trying to move more air than the engine mounted fan can pass. At that point the engine fan would partially block the flow of the electric. This would be bad news as low engine speed is where extra air flow is needed, especially in Phoenix at this time of year. Does this sound as if it has the ring of truth or am I needlessly worried? Is anyone running a setup like this? Any advice appreciated. -- Bob Holtzman If you think you're getting free lunch, ..check the price of the beer!
RE: [Chevelle-list] electric fan mounting question
Title: RE: [Chevelle-list] electric fan mounting question Where did you source the pullers? What brand/model, etc? Thanks -Original Message- From: Scott Somers [mailto:[EMAIL PROTECTED]] Sent: Monday, June 28, 2004 8:51 AM To: The Chevelle Mailing List Subject: Re: [Chevelle-list] electric fan mounting question I just put dual pullers on my 68 and the meter barely gets past 1/4 off cold - and it functions correctly. Just gotta watch stray paper sucking up against the outside of the radiator. Pullers will sure hold it there. They work great ( in Texas) and were rigged up as dual connections in case one goes bad the other is still working. They say getting rid of the bolt on fan adds to hp as well. And the elimination of a spinning mass sure won't hurt the water pump feelings. Plus it looks cool ( pardon the pun) . It ain't always what ya do, it's sometimes how ya look while you're doing it. Scott - Original Message - From: Bob Holtzman [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, June 26, 2004 1:50 PM Subject: [Chevelle-list] electric fan mounting question I want to put an electric fan on my '65 Malibu. The question is whether to mount it as a pusher or puller. I've been advised to mount it in front of the radiator (pusher) and leave the present 7 blade clutch mounted fan in place. It seems to me that the two fans could fight. In other words, it seems that there would be some engine speed level below which the electric fan is trying to move more air than the engine mounted fan can pass. At that point the engine fan would partially block the flow of the electric. This would be bad news as low engine speed is where extra air flow is needed, especially in Phoenix at this time of year. Does this sound as if it has the ring of truth or am I needlessly worried? Is anyone running a setup like this? Any advice appreciated. -- Bob Holtzman If you think you're getting free lunch, ..check the price of the beer!
Re: [Chevelle-list] electric fan mounting question
On Mon, 28 Jun 2004, Scott Somers wrote: I just put dual pullers on my 68 and the meter barely gets past 1/4 off cold - and it functions correctly. Don't forget, your '68 has a lot more radiator area than a '65. -- Bob Holtzman If you think you're getting free lunch, ..check the price of the beer!
[Chevelle-list] electric fan mounting question
I want to put an electric fan on my '65 Malibu. The question is whether to mount it as a pusher or puller. I've been advised to mount it in front of the radiator (pusher) and leave the present 7 blade clutch mounted fan in place. It seems to me that the two fans could fight. In other words, it seems that there would be some engine speed level below which the electric fan is trying to move more air than the engine mounted fan can pass. At that point the engine fan would partially block the flow of the electric. This would be bad news as low engine speed is where extra air flow is needed, especially in Phoenix at this time of year. Does this sound as if it has the ring of truth or am I needlessly worried? Is anyone running a setup like this? Any advice appreciated. -- Bob Holtzman If you think you're getting free lunch, ..check the price of the beer!
RE: [Chevelle-list] electric fan mounting question
Bob, you are needlessly worrying. The goal of the fan(s) is to move air through the radiator. Even if the pusher moves more than the puller, it is still going through the radiator. The excess, if any, would merely go out the side of the shroud or around the fan. I have ran this type of setup on my '64 Belair with great results. I had a 406 that liked to get warm in traffic. The pusher solved this problem completely. At highway speeds, the stock clutch slowed the puller and the fan 'stat on the pusher kept it at a reasonable rate. In all, the setup worked great for me. Brian '71 Malibu From: Bob Holtzman [EMAIL PROTECTED] Reply-To: The Chevelle Mailing List [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: [Chevelle-list] electric fan mounting question Date: Sat, 26 Jun 2004 11:50:57 -0700 (MST) I want to put an electric fan on my '65 Malibu. The question is whether to mount it as a pusher or puller. I've been advised to mount it in front of the radiator (pusher) and leave the present 7 blade clutch mounted fan in place. It seems to me that the two fans could fight. In other words, it seems that there would be some engine speed level below which the electric fan is trying to move more air than the engine mounted fan can pass. At that point the engine fan would partially block the flow of the electric. This would be bad news as low engine speed is where extra air flow is needed, especially in Phoenix at this time of year. Does this sound as if it has the ring of truth or am I needlessly worried? Is anyone running a setup like this? Any advice appreciated. -- Bob Holtzman If you think you're getting free lunch, ..check the price of the beer! _ From will you? to I do, MSN Life Events is your resource for Getting Married. http://lifeevents.msn.com/category.aspx?cid=married
RE: [Chevelle-list] electric fan mounting question
I've always wondered at what point either a pusher or puller fights/blocks normal air flow myself. Any reputable fan mfg will tell you that a pusher is about 70% as efficient as the same fan in a puller configuration so that's something to consider when choosing a size. I don't think you'd have a problem with one fan pushing more than another pulling as the pusher would only need to be working at lower engine RPMs anyway to compensate for lack of air moving across the cooling fins. If you set it up to come on at 210 or 220 and go off at 180 (or even a manual override switch), it should only be working at low engine speed anyway such as when you're in traffic and the temp climbs. Dale McIntosh TC Gold #92/ACES #1709/NECOA #41 GR8PMKN FOR SALE DalesPlace My 67 SS and 67 El Camino ChevelleStuff Decoding info on 64-72 Chevelles MidwestChevelles Midwest Chevelle Show Information I've stopped 13,500 spam messages. You can too! One month FREE spam protection at http://www.cloudmark.com/spamnetsig/ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bob Holtzman Sent: Saturday, June 26, 2004 1:51 PM To: [EMAIL PROTECTED] Subject: [Chevelle-list] electric fan mounting question I want to put an electric fan on my '65 Malibu. The question is whether to mount it as a pusher or puller. I've been advised to mount it in front of the radiator (pusher) and leave the present 7 blade clutch mounted fan in place. It seems to me that the two fans could fight. In other words, it seems that there would be some engine speed level below which the electric fan is trying to move more air than the engine mounted fan can pass. At that point the engine fan would partially block the flow of the electric. This would be bad news as low engine speed is where extra air flow is needed, especially in Phoenix at this time of year. Does this sound as if it has the ring of truth or am I needlessly worried? Is anyone running a setup like this? Any advice appreciated. -- Bob Holtzman If you think you're getting free lunch, ..check the price of the beer!
RE: [Chevelle-list] electric fan mounting question
On Sat, 26 Jun 2004, Brian Knight wrote: Bob, you are needlessly worrying. The goal of the fan(s) is to move air through the radiator. Even if the pusher moves more than the puller, it is still going through the radiator. The excess, if any, would merely go out the side of the shroud or around the fan. I have ran this type of setup on my '64 Belair with great results. I had a 406 that liked to get warm in traffic. The pusher solved this problem completely. At highway speeds, the stock clutch slowed the puller and the fan 'stat on the pusher kept it at a reasonable rate. In all, the setup worked great for me. Thanks for the encouraging words. I'll forge ahead with the pusher fan. -- Bob Holtzman A man is a man who will fight with a sword, Or tackle Mount Everest in snow; But the bravest of all owns a '34 Ford, Who will try for six thousand in low! Roger Huntington
RE: [Chevelle-list] electric fan mounting question
On Sat, 26 Jun 2004, Dale McIntosh wrote: I've always wondered at what point either a pusher or puller fights/blocks normal air flow myself. Any reputable fan mfg will tell you that a pusher is about 70% as efficient as the same fan in a puller configuration so that's something to consider when choosing a size. I don't think you'd have a problem with one fan pushing more than another pulling as the pusher would only need to be working at lower engine RPMs anyway to compensate for lack of air moving across the cooling fins. If you set it up to come on at 210 or 220 and go off at 180 (or even a manual override switch), it should only be working at low engine speed anyway such as when you're in traffic and the temp climbs. That makes a lot of sense. I'll be going ahead with the pusher because I'm too lazy to pull the shroud and fan. Thanks. -- Bob Holtzman If you think you're getting free lunch, ..check the price of the beer!
