Velocity stacks

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Rev. Steve
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Joined: Sun Apr 18, 2021 12:46 am

Velocity stacks

Post by Rev. Steve »

Is there any benefit to swapping these round or has someone just put the airbox back together wrong?
mik_str
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Location: Montreal, Canada

Re: Velocity stacks

Post by mik_str »

can't comment on swapping them around but you can get a small but noticeable boost in lows and mids by running two long ones
99 VTR1000F Firestorm, a.k.a. The Carbon Express
tony.mon
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Location: Norf Kent

Re: Velocity stacks

Post by tony.mon »

The arrows on the tabs line up when you have them installed correctly.
There is a disadvantage from swapping front to back, as the longer ones, if fitted in the wrong location, sit too close to the filter plate and decrease power.
Four longs works well to gain a little mid at the expense of top end power, it's a trade-off, not free extra power.
It's not falling off, it's an upgrade opportunity.
Rev. Steve
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Joined: Sun Apr 18, 2021 12:46 am

Re: Velocity stacks

Post by Rev. Steve »

I figured the arrows had to match up and they even put R and F on them and still got it wrong, kinda worried now what else I'll find.
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rollingthunderx2
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Location: Hawick, scottish borders on A7

Re: Velocity stacks

Post by rollingthunderx2 »

I have moulds for Moriwaki spec velocity stacks in carbon fibre, the moulds were made directly from an alloy Mori stack, and the radius was transferred to a longer stack.
I can make short, standard long, or longer stacks.
Longer stacks make 5hp more in the midrange.
The carbon fibre Moriwaki copy velocity stacks are bonded into standard inlet stacks, to save production costs.
YETI
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Re: Velocity stacks

Post by YETI »

??? I thought Moriwaki only claimed 4bhp gain with their stacks when used in conjunction with some of their other products ..... you must have made a big improvement on the originals somehow?????
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Yeti .
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rollingthunderx2
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Re: Velocity stacks

Post by rollingthunderx2 »

It is what Moriwaki quoted in their literature, according to the guy I got the alloy stack from, so, no Im not bothered whether 4 or 5 hp, it is a small increase that doesnt cost a fortune, which used with a better exhaust will improve HP, a little here and there, whether you think its 4 or 5 is irrelevant, they are Moriwaki copies that are, A, not unobtaium, B, affordable, as far as I can see that shouldnt be an issue.
You can please some of the people some of the time, but not all the people all the time.LOL.
YETI
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Re: Velocity stacks

Post by YETI »

So what evidence do you have that those stacks improve the bhp at all on a standard engine or a set up with let's say ?? A : set of race cans ? Or B : a slightly fettled with engine
Or are you just quoting a number ( 4 or 5 or something around there , kind of .... possibly cos a mate said they read it somewhere ) without any factual proof.
So are the Moriwaki stacks ( which are of unequal length ) the same length as the standard Honda stacks that you are grafting your crap to ?
You'll gain naff all from your stacks except tuning issues .
People will try to flog a dead horse if it fills their pocket .
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tony.mon
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Location: Norf Kent

Re: Velocity stacks

Post by tony.mon »

YETI wrote: Tue May 04, 2021 9:18 pm So what evidence do you have that those stacks improve the bhp at all on a standard engine or a set up with let's say ?? A : set of race cans ? Or B : a slightly fettled with engine
Or are you just quoting a number ( 4 or 5 or something around there , kind of .... possibly cos a mate said they read it somewhere ) without any factual proof.
So are the Moriwaki stacks ( which are of unequal length ) the same length as the standard Honda stacks that you are grafting your crap to ?
You'll gain naff all from your stacks except tuning issues .
People will try to flog a dead horse if it fills their pocket .
How to make friends and inluence people! I thought I was blunt.
It's not falling off, it's an upgrade opportunity.
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