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Title: Stock t/p fans Post by: gizago on July 13, 2011, 21:31:11 pm What is the safest recommended maximum engine rpm for a standard fan?? Non welded, non balanced original german doghouse type. Just wondering if I need a welded one for the mild motor I'm building for the other halfs car, it wont see past 6K. Cheers, Mat.
Title: Re: Stock t/p fans Post by: Taylor on July 13, 2011, 22:13:41 pm I have a non welded fan that saw 6-7000 regularly but I took it out and am going to have it welded. Its like $60 and well worth the piece of mind. $.02
Title: Re: Stock t/p fans Post by: kingsburgphil on July 14, 2011, 03:39:04 am What is the safest recommended maximum engine rpm for a standard fan?? Non welded, non balanced original german doghouse type. Just wondering if I need a welded one for the mild motor I'm building for the other halfs car, it wont see past 6K. Cheers, Mat. Funny you should ask. I just spent 3 hrs cleaning up a previous repair/welding job on my extra heads. The results of an exploded fan, I don't wantto show you the damage to an IDA. Won't see past 6K ? Picture this, you let your new girlfriend drive your car. She upshifts at 5,800 back into 2nd instead of 4th. :o Title: Re: Stock t/p fans Post by: Bruce on July 14, 2011, 04:37:03 am .... it wont see past 6K. Rev limiter or a cam that quits at 6k? Title: Re: Stock t/p fans Post by: gizago on July 14, 2011, 21:51:01 pm What is the safest recommended maximum engine rpm for a standard fan?? Non welded, non balanced original german doghouse type. Just wondering if I need a welded one for the mild motor I'm building for the other halfs car, it wont see past 6K. Cheers, Mat. Funny you should ask. I just spent 3 hrs cleaning up a previous repair/welding job on my extra heads. The results of an exploded fan, I don't wantto show you the damage to an IDA. Won't see past 6K ? Picture this, you let your new girlfriend drive your car. She upshifts at 5,800 back into 2nd instead of 4th. :o Ouch :o Now Ex Girlfriend?? .... it wont see past 6K. Rev limiter or a cam that quits at 6k? Rev limiter. Its a 74x92 single valve spring motor, with treuhaft 010, c35 cam, 043 heads, 40 IDF's and sensible c/r, until she gets used to it- she's only had a warmed over 1600 t/p in the car up until now. Title: Re: Stock t/p fans Post by: . on July 14, 2011, 21:56:51 pm .... it wont see past 6K. Rev limiter or a cam that quits at 6k? Block of wood under the accelerator pedal ? lol ! ;D Title: Re: Stock t/p fans Post by: gizago on July 14, 2011, 21:59:12 pm .... it wont see past 6K. Rev limiter or a cam that quits at 6k? Block of wood under the accelerator pedal ? lol ! ;D ;D ;D Title: Re: Stock t/p fans Post by: Zach Gomulka on July 15, 2011, 00:07:30 am Stock fan will be fine unless you plan on over driving it more than factory.
Title: Re: Stock t/p fans Post by: Rennsurfer on July 15, 2011, 01:09:45 am Stock fan will be fine unless you plan on over driving it more than factory. ??? The factory hasn't produced these air cooled cars in Germany since I was in high school. Besides, they never over-drove their cars. At least not to our knowledge. Moving forward, a welded fan (like what's been previously suggested) is more than solid peace of mind. Even on a mild engine, I highly recommend one. But... to each their own. Title: Re: Stock t/p fans Post by: stealth67vw on July 15, 2011, 02:35:13 am Stock fan will be fine unless you plan on over driving it more than factory. ??? The factory hasn't produced these air cooled cars in Germany since I was in high school. Besides, they never over-drove their cars. At least not to our knowledge. Moving forward, a welded fan (like what's been previously suggested) is more than solid peace of mind. Even on a mild engine, I highly recommend one. But... to each their own. Title: Re: Stock t/p fans Post by: Zach Gomulka on July 15, 2011, 06:20:00 am Ding ding ding!!!
::) Title: Re: Stock t/p fans Post by: Jeff68 on July 15, 2011, 14:12:37 pm I think the rate of acceleration of the fan also has to be taken in to account when you consider if you need a welded fan or not. A stock engine will not rev or acheive rpm as quickly as a tuned engine. If the engine will be very mild you'll probably be fine, if it will rev quicker and is capable of 7000 rpm I would get a welded / balanced fan. How much money is in the engine? A welded fan could also be considered cheep insurance.
Title: Re: Stock t/p fans Post by: Rennsurfer on July 16, 2011, 04:55:41 am How much money is in the engine? A welded fan could also be considered cheep insurance. BINGO. Title: Re: Stock t/p fans Post by: Dave Rosique on July 16, 2011, 05:09:10 am How much money is in the engine? A welded fan could also be considered cheep insurance. BINGO. Ditto. Title: Re: Stock t/p fans Post by: gizago on July 16, 2011, 14:10:21 pm How much money is in the engine? A welded fan could also be considered cheep insurance. BINGO. Ditto. When you put it like that it makes sense ;) |