Flat fan 914-6 engine |
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Flat fan 914-6 engine |
mepstein |
Mar 14 2022, 07:40 PM
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#1
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914-6 GT in waiting Group: Members Posts: 19,271 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
Posted on Pelican. Good thing I’ve already paid for my kids college.
https://forums.pelicanparts.com/porsche-911...2-flat-fan.html Attached image(s) |
JmuRiz |
Mar 14 2022, 08:31 PM
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#2
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914 Guru Group: Members Posts: 5,426 Joined: 30-December 02 From: NoVA Member No.: 50 Region Association: MidAtlantic Region |
Not bad...is this Marty’s base engine or is there another beast out there?
Attached image(s) |
mepstein |
Mar 14 2022, 09:11 PM
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#3
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914-6 GT in waiting Group: Members Posts: 19,271 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
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targa72e |
Mar 14 2022, 09:48 PM
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#4
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Member Group: Members Posts: 262 Joined: 11-September 16 From: colorado Member No.: 20,392 Region Association: None |
You to can have a flat fan. Now discounted for $6800.
http://forums.pelicanparts.com/porsche-911...n-complete.html John |
Superhawk996 |
Mar 15 2022, 06:30 AM
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#5
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914 Guru Group: Members Posts: 5,819 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch |
Don't be wearing your 1970's dangly gold medallion necklaces while tuning that thing!
If you have long hair - be even more cautious! Sure looks cool though! (IMG:style_emoticons/default/laugh.gif) |
Root_Werks |
Mar 15 2022, 10:33 AM
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#6
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Village Idiot Group: Members Posts: 8,319 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest |
Gotta ask why? You're clearly not saving space. Does this setup cool more evenly?
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Shivers |
Mar 15 2022, 10:39 AM
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#7
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Senior Member Group: Members Posts: 2,373 Joined: 19-October 20 From: La Quinta, CA Member No.: 24,781 Region Association: Southern California |
It really looks cool. I wonder though, how much hp will you lose/gain driving the electric fan, compared to driving a fan off the crank.
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mepstein |
Mar 15 2022, 11:04 AM
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#8
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914-6 GT in waiting Group: Members Posts: 19,271 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
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racerbvd |
Mar 15 2022, 11:15 AM
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#9
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Advanced Member Group: Members Posts: 2,368 Joined: 3-February 03 From: Sunny FL. Member No.: 226 Region Association: None |
It really looks cool. I wonder though, how much hp will you lose/gain driving the electric fan, compared to driving a fan off the crank. I think it’s 20-40hp. I’m guessing the better cooling was more important than the hp loss. Since they used these on 917s and 935s, I would have to believe that they were functional. I'd love to have one of these set ups. In a 914-6, where will you draw more cool air from, the fire wall and dirty air from under the car or the fresh air pulled straight down from the grill? |
stownsen914 |
Mar 15 2022, 12:14 PM
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#10
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Senior Member Group: Members Posts: 913 Joined: 3-October 06 From: Ossining, NY Member No.: 6,985 Region Association: None |
Stock fan takes ~20 hp at high RPM, I'd have to imagine the flat fan takes more.
It would be hard to come up with an electric fan setup that would give enough CFM to properly cool the engine. I've heard that the listed CFM ratings on fans are in free air and drop a lot when actually plumbed into something. 911 fans push a lot of air. The other thing with electric fans is they draw a lot of current. It's tempting to think you're freeing up hp by going electric, but the alternator will need extra hp to drive it to make the amps needed to power the fan(s). Keeping in mind the losses from conversion from physical/kinetic energy to electric (alternator), and then back to physical/kinetic at the fan, it's hard to believe there will be any gain. Unless you're doing short runs like autocross and can just run off battery and recharge between runs. Edit: just read that an alternator producing 50 amps only draws a couple hp. So my statement above may be wrong. Trading a 20 hp draw for only a couple would be a nice benefit if someone could figure it out. The thread on Pelican did mention it's Marty's car. Perhaps an early version before the turbo? |
73-914 |
Mar 15 2022, 12:29 PM
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#11
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Senior Member Group: Members Posts: 575 Joined: 24-April 10 From: Albany UpstateNY Member No.: 11,651 Region Association: None |
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Shivers |
Mar 15 2022, 06:10 PM
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#12
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Senior Member Group: Members Posts: 2,373 Joined: 19-October 20 From: La Quinta, CA Member No.: 24,781 Region Association: Southern California |
It really looks cool. I wonder though, how much hp will you lose/gain driving the electric fan, compared to driving a fan off the crank. The fan isn't electric, it's mechanical Does it run off a driveshaft from one of those pulleys? |
targa72e |
Mar 15 2022, 06:54 PM
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#13
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Member Group: Members Posts: 262 Joined: 11-September 16 From: colorado Member No.: 20,392 Region Association: None |
Fan is driven off front crank pulley just like stock fan. Right angle bevel gear drive goes in place of the alternator/fan assembly You can see some more detailed pics of how it works in this add.
http://forums.pelicanparts.com/porsche-911...n-complete.html John |
sb914 |
Mar 15 2022, 10:49 PM
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#14
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Surf Guru Group: Members Posts: 4,301 Joined: 25-November 12 From: Brookings,Oregon Member No.: 15,191 Region Association: Southern California |
http://www.914world.com/bbs2/index.php?sho...=338013&hl=
Marty’s bad ass turbo flat fan . |
budge96 |
Mar 16 2022, 09:43 PM
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#15
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I'm new here ... Group: Members Posts: 0 Joined: 10-August 12 From: Wash DC/ LA Ca Member No.: 14,785 Region Association: None |
I was just wondering where are they getting electric fan from this , it is fully mechanically driven just like a 917 or 935 ! Cool stuff !
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ClayPerrine |
Mar 17 2022, 03:58 AM
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#16
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Life's been good to me so far..... Group: Admin Posts: 15,463 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille |
No No No Clay!!!!
This is stupid. BAD IDEA!!! You need ITBs to go with this, plus a complete rework of the induction system. NO NO NO!!!!! BAD IDEA!!!! But I want it........ (IMG:style_emoticons/default/sad.gif) |
mepstein |
Mar 17 2022, 07:07 AM
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#17
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914-6 GT in waiting Group: Members Posts: 19,271 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
with mfi
Attached image(s) |
Shivers |
Mar 17 2022, 09:29 AM
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#18
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Senior Member Group: Members Posts: 2,373 Joined: 19-October 20 From: La Quinta, CA Member No.: 24,781 Region Association: Southern California |
High cool factor for sure...Damn. But I was reading that the mechanical drive takes 25-30 hp to run, but going from 6 to 9 blades gives you 50% better cooling. Big engine, flat fan. And I do not know the price now, but it was $12,000 in 2010
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