Yamaha's R1's are some of the sweetest handing, best looking literbikes ever made.
I managed a Yamaha dealer years ago and it's been great to see Yamaha hit the nail on the head, with the one of the most awesome looking, sweetest handling sportbikes made. Am I biased, maybe a little bit!
I still have my 1981 AFM #3 points
leader west coast AFM vintage "Bob Agness" leathers in the classic
Yamaha yellow and bl/wh paneled design. Lose a few pounds and maybe
I might jump back into racing with a new LE and reclaim the "Worlds
Fastest Vegetarian" record!
|SUPERFLARE Billet Velocity Stacks|
2. 800 869-0497
You must mention this special internet offer.
Excellent transaction, fast shipping a+ stacks are
perfect with nice gains
Billet Superflare V Stacks
Use with the stock airbox and any air
inlet trumpets with more power and that BEAUTIFUL,
Velocity Stack Feedback
December 13, 2006 Dear Factory Pro,
I would like to congratulate you on your excellent work.
My name is Stavros and I own the Yamaha official dealership in a Greek town, Xanthi.
I would like to ask you if the Vstacks with part number RA-VEL-Y77-8989, are compatible with the new Yamaha FZ1 model 2006. (YES, Marc) I would also like to know when are going to be ready for sale the new VStacks for the YZF-R6 model 2006.
I prepared a YZF-R1 2005 for circuit use only and the modifications I made on it were, full titanium Termignoni exhaust, gasket head by Y.E.C., STD Vstacks and a power commander USBIII. I dynoed the R1 and the hp diagram was not satisfactory at all, too many "ups and downs", not linear. After that I changed the STD Vstacks with yours and the difference was PHENOMENAL.
The entire hp diagram was completely linear and I gained 6hp at the top end of the R1.
I once again I would like to thank you for the excellent job.
With Regards Stavros Andreadis, Greece.
My website is: www.yamaha-andreadis.gr
My telephone number is: 00302541027762
My fax number is: 00302541073192
August 27, 2005
Well worth the money! Beautiful
craftsmanship, perfect fit. Fast shipping! !A++
August 6, 2005
I've recently added a set of your
Factory Pro Velocity Stacks to my 04 r1 and wow. Following the advice
of your website, I also added a BMC race filter.
thanks for the info - Redline
visit me at www.overthelimitmc.com
Over The Limit MC - Richmond, VA
Independent testing confirms
R1 Factory Pro test results
This is with stock
exhaust and NO power commander - ALL tuning done with the stock ecm
using Yamaha supplied
Factory Pro Engine Covers w/ Integrated Frame Sliders (Factory Pro patented)
And here are the pictures that a good salesperson
wouldn't show you....
Bought aftermarket R1 engine covers before you saw the Factory Pro covers? Shucks!
$50 tradein on non-slider equipped covers in good condition towards the price of the Factory Pro Integrated Slider Cover set at regular $189.95 price.
click here to email for info
R1 Factory Pro Billet Engine Cover set
w/ Integrated Sliders
Factory Pro includes the patented, integrated,
Add more protection to your bike - safety first!
Compare to other manufacturers' billet
covers that retail for $145 a set,
Yes - they are more expensive
than Graves, but these include lower
Factory Pro Dyno Center locations/b>
Call 800 869-0497 to order!
(Note: inexpensive plastic stack on right) :-)
The Factory Pro Billet V Stacks simply flow more air and have exquisite intake charge timing!
|filter 1 - 04 16 04||filter 1 - 04 16 04||filter 2 - 04 20 04|
Replacement Air filters
with rubber frames - "performance" air filters from franchised dealers:
Potential problem: Be sure to check! This air filter seems to be made out of a semi-flexible rubber-like substance that is prone to cracking
at the edges. If you have one, make sure you inspect it regularly - as this one was cracked in a few places when new. Customer returned it to
franchised dealer. The second replacement filter was also cracked into the flat panel area of the filter - past the vertical flange.
If the cracks extend past the outer vertical portion, like this one, it's possible to allow unfiltered air to bypass the filter.
The solution to that problem would have been to use a more costly, stronger, injection molded plastic, (like stock Japanese filter and BMC filter)
instead of cheaper, cold pourable rubber.
If they make it more flexible - it will rip and if made stiffer - it will crack - The BMC filter is a high quality, injection molded plastic and is the
preferred filter to use.
revised: August 9, 2004
original: July 16, 2004
Have Factory Pro products? Have a pic? Want
to submit a good picture for this page?
Pics with Factory stickers go on top!!!
Perth, Western Australia
Souhaib B's Factory Pro V Stacks equipped R1
Billet Cover Installation right side
(lh cover just comes off with torx screws and is replaced)
|The right side cover and slider, installed.|
|What it looks like when the
cover is removed.
Note that there is a small pin missing - It was where my finger is - It's still in the cover you just took off.
(ok - you probably won't notice that the pin's
missing, only that that long black thing slipped down from "somewhere")
|The pin is the lower locator
for the front cam chain guide. The guide will slip down an inch or so
when you take off the cover (and pin) - nothing weird happens - the
cam chain doesn't jump time or derail itself.
(unless you neglect to put the pin back and start the engine.....errr... "try" to start the engine)
Just take the pin out of the cover and line up the black "5VY" guide's hole with the engine case's guide hole and slip the pin through the cam chain guide and into it's case hole.
FYI - Figure that every time you install the
pin and the cover, then pull the cover back off, the pin will stay sucked
into the cover's blind hole and you'll have to take it back out and
put it back into the cam chain guide and engine.
All that being said:
It's a 30 minute job -
If you do not reinstall the cam chain guide pin or pins, you WILL destroy your engine.
That being said, if you have
ANY questions, any confusion, any grey fog of insecurity - STOP.
Pick up the phone and call us
415 491-5920 or at least call a qualified Yamaha engine builder.
Links and ratingswww.R1-forum.com and www.R6-forum.com
|Here's what happens when people can't post (like the R1 forum).....
and threads wander into vagaries and conjecture...... and limited in
Here's the link to a thread.....
And here's the responses to some of the statements and questions.....
The Storm: Just got my new
Factory Pro v stacks in today with the new BMC Filter
LDHR1:torque my friend torque..
Wheatman: Graves make better power in the midrange...
JG1: I'm so confused with the whole Graves vs.
Factory Pro thing. I have the Graves, FWIW
Wheatman: Ram air on the 04/05 R1 seems to
starve #2/3 cylinders of air so the Graves design equals the air flow.
unseen response: Thanks for the credit, but not quite true. If I was paid to develop something for an outside company, I would do my best to do a good job for them or not take the job. Because we've been tuning AND designing dyne systems AND building reasonably competitive AMA Supersport bikes (one AMA 600cc Supersport win!).... We do development for other companies, including some exhaust companies, camshaft manufacturers, cylinder head gurus - and if I had decided to do a particular job, it would have to be a job that we were also not making or planning to make ourselves. With stacks, we started out making the velocity stacks for Belgarda Yamaha's World 600 Supersport program. They were similar to Yamaha's stacks (that's what they wanted), but instead of making only 1 length of 35mm, we made 20mm to 45mm in steps of 5mm for them. They had the fastest carbureted R6's in the world at the time. The only similarity of any of our stacks to the Graves stacks were the 03-04 R6 stacks - and there was only 1 way to make them in one piece. We subsequently made the proper 2 piece Superflares, which work better than the one piece stacks (theirs and ours).
LESTAT77: Anyone have a true comparison on the two. I'm in the same situation. Which one to get.
unseen response: Ahhh!!! Voice of reason!
Juerg: (referring to the EC997 dyno charts posted at factorypro.com using a Yoshimura slipon) "That dyno unfortunately doesn't help at all. You cannot compare a standard bike to a bike with exhaust AND stacks, to tell anything on the effect of the stacks themselves. We need a dyno showing the difference "before/after"
Unseen response: It shows a typical USA R1. The BASE test was with stock header pipe with slipon, stock stacks and stock air filter - and not an aftermarket full system that may or may not have + or - effects on the stock powerband. If there was a large difference in improvements with a stock exhaust and I saw it at one time or another, I'd print it. Using a completely stock exhaust, and the FP stacks, according to other people who have tested the Factory Pro R1 stacks seems to indicate a rather huge improvement at 7000 rpm, but it's so huge, that I won't print it. I'll let someone else print it.
Lestat77:You have two different designs. I think the Factory pro stacks would help a lot more with midrange and you would lose a lot more with the top end. The graves you will gain some mid range, but only lose a little in the top end. Guess, it depends on what your really looking for.
From what I understand velocity stacks don't produce more HP but move the power band in the RPM range. Shorter stacks are better for top end power and longer stacks are better for midrange/low end. Yamaha actually increased the midrange on their 05 R6's by making the middle stacks longer. Just like the Graves set up, but they made up for the top end loss by making the throttle bodies bigger. Still would be nice to see a back to back comparison on the dyno.
Unseen response: RE the R1 stacks: logical idea, but neither the FP stacks, nor the Graves stacks should lose power when it's measured under load on a dyno or when riding. As far as stacks go, yes, you can make more power. It's not always the airflow, it's the ability of the stack to create a timed or tuned resonance of air pressure that cleverly overfills the combustion chamber to above atmospheric pressure across a desired rpm band (like a supercharger does across the rpm band), but obviously, if there's "above atmospheric pressure" in the cylinder, it's going to flow back out the intake port. The trick is to make the stack exactly the right length and inner diameter so that it makes the pressure boost at exactly the point in time that the intake valves closes. Instant extra compression! Yes, for those who extrapolate from that, you can change the cam's intake valve closing point to match the existing stacks better, too.
snoopface: d207, where did you get this BS from. sounds like a typical factory mark story. (this was regarding us designing stacks for Graves from up above)
unseen response: Ouch!! Zing! :-) Since we had nothing to do with designing Grave's stacks.... Hmmm..... Lets' do some analysis here..... Is this a common feeling you have about others. How long have you felt this way. If we did it, then we did it. If we didn't do it, well, then we didn't do it. Don't feel much like saying we did it if we didn't. I don't do everything perfectly, but what I've done... I've done - and if I print it, I'm pretty darned sure about it. If you get results different from what I got, then there's a reason for the difference. You may not LIKE the reason why your results might be "different" from my results, but 37+ years of doing this with many different engines, quite a few different dynos, being a relatively quick, top 3 club roadracer, being down the street from cam designers, cylinder head gurus, top ranked AMA teams, ran our own AMA Supersport team (one win!) says that just maybe, I might know what I'm talking about.
An open mind is a terrible thing to waste!
Juerg: This is interesting, at is would contradict the popular theory that the dip is caused by an intended closing of the exup valve, to meet noise emission requirements. (that's in regard to Sportrider's dyno test of the stacks - using, in my observation, poor test procedures, that showed a huge midrange increase in power, that we never got when we tested using more controlled test procedures.)
The longer tubes seem to prevent a resonance problem on the intake side. (not from my testing!)
It also is interesting because there is no gain (contrary to what factorypro is pretending on their graph) in peak performance.
(yes, using poor test loading, they got a huge midrange improvement and poor topend improvement and that's different from what we got or what people who use the FP stacks when riding experience. I should send my cousin Bruno over from Bern. He's fairly experienced! :-)
I now am curious to see a similar comparison using Graves stacks
(Factory Pro TRIED to get Sportrider to compare the stock, Graves and Factory Pro stacks and post the results. Ask Andy at Sportrider. I'd imagine that the Graves stacks would show less midrange improvement and probably no loss of topend using equally poor dyno test procedures. Of course, from rider feedback and our EC997,loaded power tests, I don't really agree with the Sportrider Superflow dyno testing anyway, so it's all pretty moot. Actually, Sportrider's dyno hp numbers don't relate much to anybody else's dyno hp numbers.
Juerg: True! Almost every change will have some impact, those systems have to be seen as a whole. Nice curve anyway! Comparing with Sport rider however, my guess is that you are rather seeing the impact of the air filter and not the stacks.
Unseen response: Hmm...... First, you wanted a test with the stock exhaust and only changing the stacks - Now, you want a test with all the parts? I change the air filter to a BMC RACE and get 1ish hp improvement after the FP stack dyno test (it's on our site) and somehow you don't believe that, but you believe some well meaning magazine journalist who's "whacking the throttle on in 4th gear on a dyno test with hardly any load" dyno chart? And your guess is that it's the air filter? If anybody reads that, they will figure that installing a BMC RACE filter will add 4-5 hp? I say that the BMC's worth 1, maybe 2, depending on wandering dealership level dyno test procedures.
And the Last post from the original poster??The Storm:
I have Finally had a chance to ride the bike after the stacks and air filter and the bike pulls like mad earlier than before and never lets up!!
The biggest difference I've felt is that you don't get that big hit on the power it's just a lot more smooth on the delivery NOT LESS just earlier and SMOOTHER!!!
Well, there you go. A smattering of good questions, a lot of well meaning internet banter, some internet suppositions, a bit of internet amateur to professional animosity, internet rumor and internet bad info...My summation?
The Storm rode his bike and it works better - just like we said it would and an EC997 dyno showed (but unlike what a dynojet clone dyno said)The lowend and midrange are improved. (as predicted and we expected)
It's smoother. (that's what happens when all 4 cylinders pull evenly)
It doesn't drop off in power. (once again, proving Sportrider's R1 dyno test procedures were funky)
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The extension of the laboratory
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Mailing / Shipping
And most importantly
Fill out one form - Get ONLINE realtime quotes from multiple companies - One Stop auto, home and more from insurance companies you already know.
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Book a sightseeing flight
over the Wine Country or a Kamikaze aerobatic flight or a biplane flight
over Infineon Raceway, the Golden Gate Bridge and the San Francisco
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Artisan Crafted Fine Cheeses â€“ Since 1865 - Specializing in Handmade Brie & Camembert