VForce 3 Gen2 Reeds

4403 Views 17 Replies 12 Participants Last post by Cudney Racing, Oct 7, 2006

Dtweaker

Discussion Starter · Oct 6, 2006

I received my VForce3 second gen reeds today and compared them to my old 800HO reeds. With the 1/4" spacers attached to the bombi HO reeds the new VForce3's are the exact same length. So the correct way to install them is with NO spacers. No stock 3/8" nor the 1/4" spacer required...naked as is VForce 3 reed. Here's a picture of the old Doo HO reed with 1/4"space next to the VF 3. They mount to the same depth.

Bring on Winter!
DT

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Monster Performance

· #2 · Oct 6, 2006

straightforward,good pictorial!

Curley

· #3 · Oct 6, 2006

Do the Vforce come with new carb boots ? If so , how about another pic please .

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REV*BARON

· #4 · Oct 6, 2006 (Edited by Moderator)

Awesome....now I need to get a pic for everyone showing the V3's original version (there are two generations of V3's). Problem is I don't have my stock ones to show the comparison.

Yes they come with the boots.

Here's pic of the 03 800 Reeds from the factory.

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REV*BARON

· #5 · Oct 6, 2006

Pic of the 04-05 800 Reeds.

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dieselmatt1

· #6 · Oct 6, 2006

are these the best reeds to buy?

Revved Up

· #7 · Oct 6, 2006

Advanced Member

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The assumption that the VF reeds have spacers is only because the reed block stop is on the outside of the cylinder, this is not a spacer. If the engine, a HO that came with reed spacers, you need to have the spacers but not the .450" ones that came with the engine, you need to use the 1/4" spacers and the reason is so you can still obtain as much crankcase vloume and pick the airspeed up through the carbs, using the .450" stock spacers with the VF reeds can cause the carb float bouls to rub on the jackshaft where the 1/4" ones won't and the .450" spacers slow down the air flow throught the carbs. Hope this helps you. -- Bill

I am running 1/4 spacers with my V force

dave583

· #8 · Oct 6, 2006

Seems like both look pretty similar. maybe you could save the money and put it towards a mod that will make a difference.

Revved Up

· #9 · Oct 6, 2006

Revved Up said:
Advanced Member

Group: Sponsors
Posts: 1409
Joined: 19-January 03
From: Sprucedale, Ontario Canada--Ph: 705-685-7433
Member No.: 598

The assumption that the VF reeds have spacers is only because the reed block stop is on the outside of the cylinder, this is not a spacer. If the engine, a HO that came with reed spacers, you need to have the spacers but not the .450" ones that came with the engine, you need to use the 1/4" spacers and the reason is so you can still obtain as much crankcase vloume and pick the airspeed up through the carbs, using the .450" stock spacers with the VF reeds can cause the carb float bouls to rub on the jackshaft where the 1/4" ones won't and the .450" spacers slow down the air flow throught the carbs. Hope this helps you. -- Bill

I am running 1/4 spacers with my V force

This post came from an earlier one that Bill Cudney did!

dieselmatt1

· #10 · Oct 6, 2006

i am looking to replace mine because of cracked boots a tipical ski doo problem> why replace with ski doo boots when they are going to rip and crack again

SHOWTZ

· #11 · Oct 6, 2006 (Edited by Moderator)

I decided to call Moto Tassinari (manufacturer of the VF3) to clear up some confusion. There are two versions of the VF3 reeds for the 600HO/800HO REV. The latest part number has 3 ports and the part number is V3124-883B-2. They said the spacer is optional on the 600HO but is required on the 800HO.
The older vforce 3 version has 4 ports.

VF3 Carb boots are available from them separately P/N RB124 @ $78 each. They do not believe they are compatible with the stock ski-doo boots. Can someone take their new Vforce kit's carb boots and check the fitment of stock reeds? REV*BARON's pic of the stock 04+ REV reeds looks like it the Vforce 3 boots would work with them? Some people have had bad boots and don't necessary want to upgrade their reeds. It would be nice to have another option to order these instead of junk doo ones again. How much are the stock doo ones?

gman086

· #12 · Oct 6, 2006 (Edited by Moderator)

2

Revved Up said:
Advanced Member

Group: Sponsors
Posts: 1409
Joined: 19-January 03
From: Sprucedale, Ontario Canada--Ph: 705-685-7433
Member No.: 598

The assumption that the VF reeds have spacers is only because the reed block stop is on the outside of the cylinder, this is not a spacer. If the engine, a HO that came with reed spacers, you need to have the spacers but not the .450" ones that came with the engine, you need to use the 1/4" spacers and the reason is so you can still obtain as much crankcase vloume and pick the airspeed up through the carbs, using the .450" stock spacers with the VF reeds can cause the carb float bouls to rub on the jackshaft where the 1/4" ones won't and the .450" spacers slow down the air flow throught the carbs. Hope this helps you. -- Bill

I am running 1/4 spacers with my V force

This post came from an earlier one that Bill Cudney did!
[/quote]

Bill was speaking of the first gen VF III's which are basically the same as the HO reeds.

And FWIW, I have been preaching NO REED SPACERS for Gen II (as shown in first post photo) since they came out but APPARENTLY no one uses the search function NOR believes me?!

Class is IN: The ONLY reason reed spacers were used is to UNBLOCK the intake ports from the reed stops (shown below) and to make sure the end of the reeds weren't rubbing. There is NO FREAKIN MAGICAL AIR VOLUME IMPROVEMENT THING GOING ON HERE PEEPS!!! In fact, the further away the carbs are, the weaker the signal. If you space the new VF III's you're shooting yourself in the foot!

Class DISMISSED!

G MAN

PS - Attached is a photo of the gen 1 reeds. You can see the reed stops. Now feel up into the cylinder where the intake ports are and maybe ya'll will FINALLY understand WHY reed spacers were ever invented in the first place!!!

PSS - Sysop should pin this topic as it seems to come up once a week!

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Dtweaker

Discussion Starter · #13 · Oct 6, 2006 (Edited by Moderator)

Here's a picture of the VForce 3 (2nd gen) carb boots for Curley. They're much higher quality then the Doo boot. I'm not expecting a bunch more power, I am only Dooing the VF3's because my carb boots are shot.

DT

EDIT NOTE: I PM'ed Bill to see his first hand thought on 1/4" spacers with VF3's second gen reeds. He recommends to ADD the 1/4" spacers even though the the second gen VF3's are 1/4" shorter. He has seen a gain of 1 to 2 hp on the dyno with the spacer and the new gen VF3's. So I will be trying it first with the spacers.
DT 10/15/06

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SHOWTZ

· #14 · Oct 7, 2006

Will the stock doo reeds in my 2004 work with the VF3 boots? The VF3 boots are available seperate for $140 pair and entire VF3 kit is $250.

Cudney Racing

· #15 · Oct 7, 2006

The 1/4" spacer has nothing to do with the length of the reeds and if you read what I was quoted as saying you can see that there is no reference to the reed lengths or position of the reed cages in the cylinder. -- Bill

11c

· #16 · Oct 7, 2006 (Edited by Moderator)

Dtweaker said:
Here's a picture of the VForce 3 (2nd gen) carb boots for Curley. They're much higher quality then the Doo boot. I'm not expecting a bunch more power, I am only Dooing the VF3's because my carb boots are shot.

GMan has done as good a job as possible explaining the purpose of reed spacers:

The ONLY reason reed spacers were used is to UNBLOCK the intake ports from the reed stops
and to make sure the end of the reeds weren't rubbing.

Bill was not talking about the second gen VForce reeds when he recommended the 1/4" spacers ... BUT if my picture above showing how the new VForce is the same length as the DOO HO reed (w/ 1/4" spacer) and Baron's

+ Gman's

doesn't convince you...ADD THE SPACER!

DT

Will those boots bolt up to the stock 800HO reeds ?

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BIG JOHN

· #17 · Oct 7, 2006

OK get a pencil....

800 std.

STOCK - NO reed spacers...BUT add Boyeson reeds pedals...with them you lose the reed stops that block the port and they are only $75

PORTED - than V-Force reeds will help....especially the gen 2's with no spacer

800HO/PT

STOCK - need 1/4" reed spacers only (required with stock HO reeds)

PORTED - same

840HO - same (I found 1 hp with gen 2 V-force)

F-f up boots??? stock boots are $60 ea

800R- Looks like gen 2 V-Force with NO spacer....HMMMMMM-BJ

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Cudney Racing

· #18 · Oct 7, 2006

The 800 R we have has VF3 reeds but I am sure that the production sled will come with the SD reeds, with the VF3 reeds on the R with reed spacers it made 2hp over not having the reed spacers, won't be able to tell with the stock SD reeds until they come. I can tell you this the R ported, with a billet head is an awesome power plant and it will definetely surprise a lot of bigger motors. -- Bill

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