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Engine vs Alternator RPM ?

Started by Arnie, May 26, 2011, 10:10:15 AM

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Arnie

May 26, 2011, 10:10:15 AM
A former list member has asked me if I know the ratio of engine vs alternator rpm.
I don't, but maybe one of you does. 
He's looking for an engine speed related power take off for a high pressure mechanical fuel pump.
Any other ideas?

Cheers,
Arnie

racerrad8

#1
May 26, 2011, 01:46:37 PM
Quote from: Arnie on May 26, 2011, 10:10:15 AM
A former list member has asked me if I know the ratio of engine vs alternator rpm.
I don't, but maybe one of you does. 
He's looking for an engine speed related power take off for a high pressure mechanical fuel pump.
Any other ideas?

Cheers,
Arnie


1:1

Both sprockets have 21 teeth.

Randy - RPM
Randy - RPM

SkyFive

#2
May 26, 2011, 02:25:13 PM

Ironically, I was thinking today about "what if" a FJ engine was built without the starter clutch/starter and alternator. It seems like it would eliminate considerable rotating mass...super fast revs.

Pat Conlon

#3
May 26, 2011, 05:21:41 PM
Quote from: SkyFive on May 26, 2011, 02:25:13 PM
Ironically, I was thinking today about "what if" a FJ engine was built without the starter clutch/starter and alternator. It seems like it would eliminate considerable rotating mass...super fast revs.

Yea Bryan, IIRC, Doc Hacker in the UK did this on his FJ track bike for just that reason: http://www.FJRacer.com
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

Arnie

#4
May 26, 2011, 09:25:33 PM
Thanks all, very much appreciated :good2:

Cheers,
Arnie
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