![]() ![]() They tuned my cousin's R1 to best power instead of the air fuel ratio and the stacks worked as FP said they did according to him. I know that there are plenty of times that pushing a button and tuning to some afr doesn't always end up making the best power - and I've see the factory pro wars over Dynojet tuning to an afr vs tuning to FP best power. I've got a Teka SFI that tunes the stock ECU on the 07 gsxr's. It is ignored 100% above 20% - 30% on most Japanese bikes and on some BMW models, up to almost 50+% throttle in the lower rpms. Why do you think that an O2 sensor works at full throttle? Paint fumes maybe? :-) I used to paint, too. Not to be disagreeable, but I just looked at and I didn't see anything that said anything about an O2 sensor anywhere. I'm just so glad i didn't buy the '07 R1 like i was tempted to do a few months back when the hype was out there. The GSXR lost as much as 15 Hp in some spots with no gains anywhere. The Gixxer 1k was not(no PC yet it's an 07) although it was touted by FactoryPro as a Drop-in gain due to the O2 Sensor. The R1 was Dyno tuned & the powerband lost with the stacks. I would think that with stacks you would lose top end and gain mid and lower, It seems to me that they are like the intake on a car the taller the intake the Higher up the power curve the shorter the stack or intake the lower the power curve Last year my cousin in Cali had Factory themselves install and tune his 06 gixxer 1000 and he said the bike was a lot better in the upper midrange, too. I rode the bike before and after and it did wheelies lots easier and had to be more careful on freeway onramps. I haven't looked at how the stockers are.comments?Īs long as y'all don't have any kryptonite/I'm gonna be alright.ĭon't know about the 07 gsxr1000, but the R1 stacks worked a lot better in my friend's bike - the upper midrange was pretty wicked. Supposedly, Bear has made some proto ZX-14 stacks but they're such a pain to install he might not make them. Hope you don't mind if I swing this thread to ZX-14-oriented. ![]() They're still hung up on carburetors.Ģ006 Kawasaki ZX-14 Ninja, Red now with mo' Brock's in my lyfeġ991 Yamaha Vmax - Because I need a mule to carry the manhoodĢ002 Ford Lightning - Ford GT Aluminum block engined, 802HP 911TQ now WhippleCharged IMO Factory Pro hasn't been relevant nor innovative since fuel injection became the standard on sportbikes. Oh, Hey guys it's been a while! Gonna try to show my face around here alittle more! Took the Factory Pro stacks out & both bikes were restored to full power.ĭoes anyone have actual dyno results that were positive from these stacks as a mod. I just dynoed 2 bikes, an 07 GSXR1000 & an 04 R1. Dynoed & Taken off the Bike!įactoryPro Velocity Stacks. The photo may not fully reflect the shape and model of the product.FactoryPro Velocity Stacks. It is advisable to always ask for confirmation of availability and delivery times. Installation instructions are included in each set The first tests have already been carried out by the WSBK and BSB teams demonstrating that the MWR horns provide the same power as the official velocity stacks. MWR Velocity Stacks build together with the original mechanics ![]() The mechanism, the bushings (4x push-in) and plain bearings (5x click-on) must be transferred from the original set. The R1 velocity stacks set contains the upper and lower stacks + installationbolts Also with the same extreme low lower stacks for high top-end power High performance MWR velocity stacks per YAMAHA YZF 1000 R1 /M 2020-2023Īfter the great success of the Performance Velocity Stacks for the new R1 we developed new stacks for the 2020 R1, with the same construction and shape as the new one. ![]()
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