Velocity Stacks?? Are they worth it?
- Thread starter LesPow
- Start date
Bubba Zanetti
Member
Boy Rasta, good question with no clear answer LOL!
How much are velocity stacks for a CBR?
BZ
How much are velocity stacks for a CBR?
BZ
justintime_3
New Member
Its kind of an unclear proof positive answer. Some say no, some say yes. I do believe that the AMA guys run them so there must be some benefit. I have also heard that it may help with throttle control, smoother power. Not sure if theres any truth to that though. I went through hell trying to get factory ATTACK kawasaki ones and ended up buying two of them but could not find the other two sizes at any dealership anywhere. So good luck. I know there is some aftermarket companies selling them but thier pretty expensive.
LesPow
Control Rider
For sure, I would do a dyno test, re-mapping esp. after the ECU reflash.
Found this on Wera --
--- (-Genuine HRC velocity Stacks(Rare, 3 weekends, kits go for $1300+)-$600)---
Cant seem to find genuine HRC stack online but found this http://www.factorypro.com/products/vstacks_Honda.html For $325.00
Nashoba
New Member
Hard racing has the velocity Pro models a bit cheaper i think:
http://www.hardracing.com/Factory%20Pro/VelocityStacks.htm
http://www.hardracing.com/Factory%20Pro/VelocityStacks.htm
http://www.600rr.net/vb/showthread.php?t=56666
Much cheaper than the hrc route. That thread has some great info on v-stacks in general as well.
Much cheaper than the hrc route. That thread has some great info on v-stacks in general as well.
NickMcCoy
Member
I was told by a good engine builder that shorter velocity stacks on the GSXR 600 would give you 1-2 hp on top with a small decrease in midrange, I never tried it because it's not SS legal but I couldn't imagine spending hundreds of dollars for that. He also said you could get about the same gains by cutting the stock ones, not sure if other bikes have plastic stacks but that would be alot cheaper. Anyone ever heard this or tried it?
Stacks alone arent worth it. It will change your power delivery mosting with just stacks. I did some mild motor work to my 05 CBR with the help of an old M$/KWS motor builder. Ill be happy to share what I did and got out of mine. Prebuild I got 103 pump and 106 u4. Post build I got 115 pump and 121 u4. Let me know
Motofun352
Control Rider
Velocity stacks are for "tuning" the intake, much the same as exhaust diameter/lentgh is for tuning the exhaust. Gains at high revs will(may?) cause losses at lower revs. If you are very good at spinning that thing constantly in the upper rev range it might help a little. If you're like me and frequently end up in mid-rev range it probably will hurt more than help.
Pro? go for it! Trackday guy? Meh
Pro? go for it! Trackday guy? Meh