I was browsinng the net, and found that if we use the V301A with slight modification it will work on our NSR250R.

Well i dug a little deeper and found that if we get the newest V301C there is no need for any alteration. I bought two units and will revert my findings hopefully in December when i have time to get down and dirty with my upgrades.

It will be interesting to hear about your findings.

I use the HRC TT-F3 reed cages (which are effectively pre-92 NF5) with the later HRC stuffers modified to suit, and the setup works well. However, I don't think the difference is particularly "measurable", and I am not sure the V-Force setup will be either.

I've never seen any hard evidence to prove carbon reeds make any significant difference in the NSR either, although agree that they are far more likely to disintegrate and pass harmlessly through the motor if they break than OEM fibre items.

V-Force cages and C/F reeds are largely "snake oil", in my personal opinion, as the standard NSR parts are pretty efficient and have a good surface area.
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Andy.
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On the 3xv TZR's carbon reeds just give you more over rev
On the vj23 i heard it gives 2Hp more all over if you use RM125 vforce reeds

I've "heard" a lot of things... I've never personally seen any hard evidence though!
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Andy.
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This is a dyno run of a 4dp TZ250 look at the over rev the carbon reeds make

From what i have researched the inlet for the V301C is 39.6mm wide by 32.4mm tall, the High flow measure 39.5mm wide by 30.0mm tall.

Once i have them all on hand i will snap some pics for reference.

The idea is to also increase the reed qty, where its less effort to breathe thus givin more power across the chart.

Received one of my two reed blocks, and all i can say is pure wow...

The finish is great, and cant wait to try them out.

Now i am just waiting for the right time...

Will schedule dyno time to do a before and after.

Nice that will be grate also compair them with HRC reeds and stoppers

FWIW I'll share my experience with a V-Force 4 set up on my NF4 RS125. This was an upgrade that was part of an engine re-build and tune by a great 2 stroke guy. I did not dyno the engine before and after the V-Force but the engine was unbelievebly better than before and I feel the V-Force was part of it. I did go back to standard reedblock for a while (reasons below) and I thought it lost a little bit in terms of power and driveability. If you search on USGPRU.net there are a lot of comments about the V-force (there may be some dyno comparisons, can't recall now). There seemed to be a strong consensus that it made significant improvements. Same on the RZ350 owners group website.

The problem I had was that the reeds would fray and chip at the end in an unbelievably short time which hurt performance considerably and made the bike very difficult to start. I suspect it was because the product is designed for the CR125 which operates at lower revs. The problem seems to have been solved by ordering reeds from Carbontech which have lasted longer, but maybe still not as long as stock reeds would last.

As I say, not seen any evidence personally.

As for RD/RZ350... anything's got to be better than stock!

We run carbon reeds on one of the DeeCee NSR500Vs and standard fibre reeds on the other, and apart from #21 virtually destroying a set [of carbon reeds] about every 45 minutes, there's no discernible difference between the two bikes. #21 certainly didn't noticeably make any more [or less] power on the dyno when we switched to carbon.

V-Force inlet kits may give a benefit due to overall reed area on some bikes, but for a street/road-race motor, I would personally rather spend my money elsewhere.
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My bike is being cleared from customs this weekend.

By Jan i should have some more information.

But from what i can find in google images, the reed qty is doubled with the V-force, vs stock.

More surface area for the engine to breathe.

Nafo wrote:My bike is being cleared from customs this weekend.

By Jan i should have some more information.

But from what i can find in google images, the reed qty is doubled with the V-force, vs stock.

More surface area for the engine to breathe.

Nice it will be grate to see if there is any thing in it

Do not forget to dyno stock first...