RC51 SP2 only SPAL fan mounts proof of concept and sign up thread! - Honda RC51 Forum : RC51 Motorcycle Forums
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post #1 of 81 (permalink) Old 12-06-2015, 03:27 AM Thread Starter
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RC51 SP2 only SPAL fan mounts proof of concept and sign up thread!

PLEASE READ THIS ENTIRE POST VERY CAREFULLY


so i now have proof of concept on these brackets. after a few trials i have a final design that allows the spal 5.2 inch fans to fit on the 51 as simply as possible. these will fit both sides without scoops, and the LEFT SIDE ONLY with scoops. the scoop for the right side is simply too small for the 5.2" spal fan.



before i go any further, i need to make a few disclaimers. these are non-negotiable and are absolutely take it or leave it.

1. these brackets are designed for the geometry of the SPAL 30103011 and 30103013 fans. i will not be making any brackets to suit the fan you have. if you don't have one of these two, i will not ensure that whatever it is you have will fit.

2. these brackets are sp2 only. i'm not going to do a run of sp1 brackets because for one i don't have an sp1, and for two the fan i have won't fit in a right side scoop, and three it would require a much more complicated bracket or the manufacture of additional parts

3. if you think you can design or build it better and want to tell me what i did wrong, your cries will fall on deaf ears. this is the design i have, the drawing is done, it is what it is.



so now that we've gone over that part, here's the proof of concept and pics of how it all goes together. i understand that the fan overlaps the front of the rad slightly, it's a very tight fit in this stupid bike, and to clear the frame spar on the right and the scoop on the left, this is just how it worked out. it should have minimal effect on cooling.


here are the two brackets.




this shows the orientation of the bracket on the right side rad




here it is with the fan attached. note that the bracket sits on top of the tabs on the bottom of the rad, and underneath the tab on the top of the rad. this helps the fan sit flatter.



here is a view from the top. the fan sits reasonably far off the rad, which i suspect will help with airflow when the fan isn't running, and also mitigates risk of rad damage from the fan itself



a view from the front. fits nicely in there

Last edited by Wibbly; 12-06-2015 at 03:37 AM.
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post #2 of 81 (permalink) Old 12-06-2015, 03:29 AM Thread Starter
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this is how the left side will be oriented



and this is how it will be with the fan attached. again notice how it sits on top of the bottom tabs and below the top tab.




it's a VERY tight fit inside the scoop (HUGE SHOUTOUT TO @Duckhunter for supplying me with the scoops)



barely room to breathe!



and how it looks all mounted up
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post #3 of 81 (permalink) Old 12-06-2015, 03:34 AM Thread Starter
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finally,

i've decided to skip anodizing these, i don't really feel it's necessary at all. they are as good as invisible and the stock rads are silver anyway (i had mine anodized, hence the black). i will also include the required hardware. you can reuse most of the original stock fan mounting hardware, only a couple extra fasteners are required.

price will be

40 USD SHIPPED for ONE, 75 USD SHIPPED for a pair

i will absorb paypal feels (the only method of payment) and included shipping is within north america only. international i will have to figure out the additional cost.


we'll start a list of people who are willing to commit to purchasing these. i'll leave the list open for exactly 1 week and then start on production based on the list.
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post #4 of 81 (permalink) Old 12-06-2015, 03:35 AM Thread Starter
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please copy and paste this and we will see where we end up in a week.


thanks guys!

USER NAME, quantity of lefts, quantity of rights, quantity of pairs


Wibbly, 1 left
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post #5 of 81 (permalink) Old 12-06-2015, 05:26 AM
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please copy and paste this and we will see where we end up in a week.


thanks guys!

USER NAME, quantity of lefts, quantity of rights, quantity of pairs


Wibbly, 1 left
02RC 1 pair
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post #6 of 81 (permalink) Old 12-06-2015, 09:37 AM
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Garage
Great Job Will !

I would like to get one for testing on the sp1 rad.

So put me down for one left at this time.

-2001 Honda RC51 sp1 " Slightly Modified "
-2001 Honda 929RR Erion Edition
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post #7 of 81 (permalink) Old 12-06-2015, 09:56 AM
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post #8 of 81 (permalink) Old 12-06-2015, 11:09 AM
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post #9 of 81 (permalink) Old 12-06-2015, 01:27 PM
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Nice work Wibbly. I bet these sell like hotcakes.
Good on you for providing yet more good functional RC51 parts that no one else provides.

John, 2000 RC51 #000100

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post #10 of 81 (permalink) Old 12-06-2015, 03:06 PM
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+1 J.D.! Great work wibbly....
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