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Gilmer Belt drives on VW type 1

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colonel mustard Son of Jim - Creator of Good

2,829 posts · joined Feb 2009 ·

#744499
Hey all!

I was wondering if anyone has done this before? I think i have seen it on that white & blue Volksrod (in a past issue of VWMA)
ANy ideas if they are made or are a custom jobbie.. tensioner would be needed on a 2 pulley setup yes? Waste of time and just go for the serpentine system??

STIDUB Over it.

1,497 posts · joined Jun 2008 ·

#744525
spend the limited funds you have on necessities before attempting to go for shiny "cool" things would be my advice
Volkswagen Drivers Club of Queensland - member 🙂

STIDUB - yep its still a work in progress

Vwdcq club car racing/ and crashing while my bug isn't finished.

The above are personal views, no more, no less

ian.mezz I never said, I could write or spell

3,913 posts · joined Sep 2004 ·

#744675
waste of your money🙅
😂🤪😂🤪😂
car forums. where a lot of peoples good intentions end up taking a good old car off the road forever never ever to see the road again. 🥲

bajachris88 The international telephone dialing code for Antarctica is 6

6,661 posts · joined Apr 2005 ·

#744678
how would that go when the fan rpm cuts off at a certain rev range while the rest of the motor goes up (isn't it like 4000rpm when the belt starts slipping so the fan don't blow itself up?)
(ô_!_/ô) (ô_!_/ô)
69' baja: kombi box, thing spindles, irs, disc front, type 3 rear drums, 2 inch lift kit, 31x10 rears. 👍
New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta!

Camo Custom Title Time!

1,936 posts · joined Oct 2007 ·

#744684
bajachris88 wrote:how would that go when the fan rpm cuts off at a certain rev range while the rest of the motor goes up (isn't it like 4000rpm when the belt starts slipping so the fan don't blow itself up?)
Well this is something I haven't heard of before. I know I dont know a lot about VW, but I couldn't see this happening. Anyone else. Sorry if I'm wrong.

Kev
I thought rebuilding a VW would be cheap - Shit I was wrong, just don't let the wife know !!!!

Click here for my (slowy) modded 1961 Beetle build.

Sides Veteran Volks Folk

2,220 posts · joined May 2007 ·

#744694
Bajawes is pretty much the expert on fans - he did his engineering thesis or something on the VW cooling fan, and he proved the old "the VW fan cavitates at X rpm" myth was actually due to belt slip.

But yeah - it'd be a risk just like it is with the serpentine systems - standard fan's just aren't designed to do crazy revs.

Never happened to me, but at Warwick on the Saturday someone had their fan go bang and yeah - made a bit of a mess.

👎
VWDCQ vice pres & web dude - vwdcqinc.org.au
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colonel mustard Son of Jim - Creator of Good

2,829 posts · joined Feb 2009 ·

#744698
I think thats why welded fans are avaliable...

ian.mezz I never said, I could write or spell

3,913 posts · joined Sep 2004 ·

#744706
colonel mustard wrote:I think thats why welded fans are avaliable...
stop wasting your money on stuff that wont make your car any better.🤪😂🙅😂🤪
ps I have double over headed fox tails if you after some of them🤪
😂🤪😂🤪😂
car forums. where a lot of peoples good intentions end up taking a good old car off the road forever never ever to see the road again. 🥲

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#744710
Camo wrote:
bajachris88 wrote:how would that go when the fan rpm cuts off at a certain rev range while the rest of the motor goes up (isn't it like 4000rpm when the belt starts slipping so the fan don't blow itself up?)
Well this is something I haven't heard of before. I know I dont know a lot about VW, but I couldn't see this happening. Anyone else. Sorry if I'm wrong.

Kev

😉



ttakes a good motor to rev to the point that this happens but all it takes is the fan being spot welded to prevent it

squizy Thinking about another dub...maybe

4,082 posts · joined Dec 2002 ·

#744718
ian.mezz wrote:ps I have double over headed fox tails if you after some of them🤪
I'll take one.

STIDUB Over it.

1,497 posts · joined Jun 2008 ·

#744719
i assume the welded fans have the blades welded to the body alot better than factory specs? or is there more to it?
Volkswagen Drivers Club of Queensland - member 🙂

STIDUB - yep its still a work in progress

Vwdcq club car racing/ and crashing while my bug isn't finished.

The above are personal views, no more, no less

trickysimon 100km/h is only 9 seconds away

1,473 posts · joined Dec 2007 ·

#744762
Thats it, just fully welded. Only spot welds from factory.
The look of a serpentine is worth the risk of fan explosion 😎🙄

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#744777
stock fans arent welded at all
the blades are just held in place by the tabs being peened over

welded fans just have all these tabs spot welded in place


hellbugged 48's and straight cuts

5,080 posts · joined Apr 2003 ·

#744780
it's the acceleration of the fan that makes them explode, not necessarily high rpm..........certainly not fun when the shrapnel jams the throttle wide open

trickysimon 100km/h is only 9 seconds away

1,473 posts · joined Dec 2007 ·

#744785
How would it jam it open when you got the throttle tube going through the shroud?
Unless it slices through that...

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#744787
you dont wanna see the carnage a fan makes when it explodes

would make u launch that pretty serp over the back fence

hellbugged 48's and straight cuts

5,080 posts · joined Apr 2003 ·

#744789
correctamundo 👍

trickysimon 100km/h is only 9 seconds away

1,473 posts · joined Dec 2007 ·

#744792
Yeh, I've heard of smashed cylinder fins and all sorts of carnage that they can cause 🤖

colonel mustard Son of Jim - Creator of Good

2,829 posts · joined Feb 2009 ·

#744793
well... im sold on keeping my squealer

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 ·

#744794
...or get the correct sized lower pulley to keep the fan rpms under control.
westi wrote:That's mad Alan.

trickysimon 100km/h is only 9 seconds away

1,473 posts · joined Dec 2007 ·

#744795
But then your fan isnt spinning fast enough the rest of the time?

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#744798
get a revlimitor rotor or just have the fan welded and balanced

hellbugged 48's and straight cuts

5,080 posts · joined Apr 2003 ·

#744799
or all three 🤓

trickysimon 100km/h is only 9 seconds away

1,473 posts · joined Dec 2007 ·

#744800
Or stop being a bunch of pussys 😂

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 ·

#744802
I should clarify that, yes Simon,
there needs to be a pulley made to get the maximum rpm correct,
and fit a rev limiter as well.

The smaller "power pulleys" may be too small for full time "normal" use,
but I think the ratio of most serpentine systems over-drives the fan faster than stock.
westi wrote:That's mad Alan.

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#744805
yea the gen pulleys are noticably smaller
i know just putting a 10mm smaller pulley on my blower upped the boost by 2psi so i can only imagine its spining the fan alot faster

STIDUB Over it.

1,497 posts · joined Jun 2008 ·

#744807
whats a welded fan worth? say as an exchange kinda deal....
Volkswagen Drivers Club of Queensland - member 🙂

STIDUB - yep its still a work in progress

Vwdcq club car racing/ and crashing while my bug isn't finished.

The above are personal views, no more, no less

STIDUB Over it.

1,497 posts · joined Jun 2008 ·

#744836
woah, who wants a welded fan then! i think i currently have 2 fans & i do that kinda thing daily😂
Volkswagen Drivers Club of Queensland - member 🙂

STIDUB - yep its still a work in progress

Vwdcq club car racing/ and crashing while my bug isn't finished.

The above are personal views, no more, no less

colonel mustard Son of Jim - Creator of Good

2,829 posts · joined Feb 2009 ·

#744838
it says balanced too...