Guest Anonymous Posted June 17, 2002 Share Posted June 17, 2002 In the past i have heard about switching your clutch fan to an electric Will boost hp by about 6-8? , I just find that odd considering that's alot of hp for such a small adjustment and around 80-100 dollars for 6-8 hp would be a super sweet deal. 72 240z. ENGINE: '83 280zx block (F54 with flat top pistons) '72 240z cylinder head (10.4 compression, slightly ported and matched) Crane camshaft (272/282 duration, .450 lift) MSD 6A electronic ignition MSD 8mm ignition wires '83 280zx electronic distributor '72 240z crankshaft damper '83 28zx 240mm flywheel Centerforce 240mm Dual Friction clutch assembly '83 280zx radiator 3 - 40MM weber carbs with 34mm chokes, TWM manifold 3 into 2 headers 2.5" exhaust with turbo muffler ( no cat ) DRIVETRAIN & SUSPENSION '83 280ZX 5 speed transmission '83 280zx 3.90 differential and halfshafts '77 280z mustache bar with urethane bushings Tokico shocks Suspension Techniques autocross springs BF Goodrich T/A 215/60/14 tires Western minilites wheel Delrin & aluminum compression bushings SCCA 4p rollbar Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted June 17, 2002 Share Posted June 17, 2002 I'm not sure on the horsepower figures, but it will add a bit of hp due to it not turning that big lump on the front of the engine. If you have room for one, they're pretty nice although my Taurus unit is a bit hoovery sounding when you first start it. Regards, Lone Quote Link to comment Share on other sites More sharing options...
Lockjaw Posted June 17, 2002 Share Posted June 17, 2002 Yeah, I have one too, and I like it since I don't have to listen to that prop out on the front of the engine. I know it improved my turbo spool up time, so I am sure it is worth a few ponies. They do use some juice though, so you need to make sure your charging system can run everything else while the fan is on. I had to go to a 90 amp alternator since my 60 amp one was not getting the job done. Of course I have AC and all that junk too. Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted June 17, 2002 Share Posted June 17, 2002 Hey Syndicate, Where in O-town you at? Mike Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted June 17, 2002 Share Posted June 17, 2002 Weee I live by the altamonte mall .. I wish I knew of a good z group etc around here even though I plan on moving soon ( 22 I think it's time I left the parents hehe ) Car isnt up and running just yet .. Guy who i bought it from said "ready to go" well .. Heh besides hoses going bad the dist cap looks shot had to replace slave and mast clutch cyl's .. Still catching very low .. I have to make a new clevis pin .. had rust spots i just patched with some fiberglass ( my hands are all sticky and for some reason feel like they are on fire? was i supposed to use gloves =( ) .. Also the lock mech's and window mechs in the driver side door crapped out on my so i bought a couple "used" doors.. ripped the parts out they are soaking in vinegar right now to remove some rust .. I really hope i can put the door back togethor, I HATE working on doors.. Anyways we should get togethor sometime get a beer and chat about z's if you want.. or just come over here while i drink beer and you finish the work on my z =D .. MY MOMMY CAN MAKE US COOKIES! =( Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted June 17, 2002 Share Posted June 17, 2002 Oh lone and lockjaw thanks for the help =D kinda new here .. Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted June 17, 2002 Share Posted June 17, 2002 thats Kewl Brian. I am a member of the Central Florida Z Club. We meet up in Altamonte the second Thursday of each month (just passed). There are a few restorers there, but also some nicely modified cars. Getting together sounds kool, I'll drop you a message w/ my cell and we can hook up. Hmmm beer and cookies huh? and oh yea... Welcome to the board!! Quote Link to comment Share on other sites More sharing options...
blueovalz Posted June 17, 2002 Share Posted June 17, 2002 I've always been skeptical about the HP numbers "saved" with an electric pump. Whether it be mechanical or electrical, it takes the same amount of power to turn the same pump the same rpm??? So the only way I see a savings is if the pump is turned slower (average speed). With the marginal cooling that some of us appear to be having, this is not what I need. I used the underdrive (REALLY small crank pulley) approach before to slow down the ancillaries, but I feel some of my high temp problems during the summer were because of this. The bigger crank pulley cured that. Quote Link to comment Share on other sites More sharing options...
pparaska Posted June 17, 2002 Share Posted June 17, 2002 Terry, if the pumps being compared had similar flow rates and efficiencies, I'd agree. But an electric pump usually moves less water per minute than a good mechanical pump. Now, if the pumping action of the pump part of each were the same efficiency, then the electric one would use less power, ignoring the efficiency of the electric motor. The electric motor probably has an efficiency in the 80-95% range though, so no great loss there. I think running an electric pump would be nice, but I worry about them not having enough flow rate and the electric motor's longevity. Quote Link to comment Share on other sites More sharing options...
blueovalz Posted June 17, 2002 Share Posted June 17, 2002 And to muddy the waters a bit more, are there more losses (less efficientcy) in the mechanical-electrical coversion than the more direct mechanical coversion of the energy? Also, I've never had an electrical pump, but I assume they are a constant speed and do not vary with engine speed? Quote Link to comment Share on other sites More sharing options...
SleeperZ Posted June 17, 2002 Share Posted June 17, 2002 I thought this discussion was focused on electric fans only. An electric fan will save HP, because you can turn it off at speeds over 35-40mph, depending on how big your intercooler is As far as electric cooling pumps go, there could be some savings to be realized there as well, because an electric pump can be run at a constant, and perhaps optimal rate, where a mechanical pump has to pump enough coolant at idle but still must work at high rpm, where the losses must increase dramatically. This is speculation on my part however, as I'm not a fluid dynamics expert, just a sparky! Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted June 18, 2002 Share Posted June 18, 2002 Well 1 thing is for sure .. My engine sounds alot better without the hunky plastic clutch fan .. Now with a metal one i can even slice deli meats on the go Quote Link to comment Share on other sites More sharing options...
Lockjaw Posted June 18, 2002 Share Posted June 18, 2002 I hated that racket. If you ever get one of those fan clutches locked up, it is miserable. I had one lock on a road trip from NC back to Auburn, and I had to drive about 55 to keep from feeling like I was winding the snot out of the engine, not to mention the power loss. Huge. Electrics rock. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted June 18, 2002 Share Posted June 18, 2002 Ya im about togo to the junkyard pick me up a z28 or ford taurususus fan, Hopefully after that I am going to start the process of switching to efi and popping a turbo on it ( I did alot to my engine i kinda wanna keep it in plus with the paint and the chrome etc =/ ) Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted June 18, 2002 Share Posted June 18, 2002 Oh here is a pic of it http://synd240z.0catch.com/ ( i have the front msa airdam etc for it but im working on one thing at a time so havent put it on yet.. and i ripped those hideous bumper stoppers off eheheh Soon to have yellow momo seats ) If the link doesnt work im sorry they dont let you have crap for bandwidth Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted June 18, 2002 Share Posted June 18, 2002 Got a fan off of a chevy lumina at the junky junk yard today .. anyone know where i could possibly connect it too so it goes on when the car turn's on =/ Quote Link to comment Share on other sites More sharing options...
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