Beams velocity stack length tuning

[Tim.duncan]

Hey guys

We have been playing around with different length velocity stacks on the quads



I found it interesting to see how such a small thing like the length can change how the motor performs

Iv got more info coming in a couple of days

[Rice86]

Round of applause. That's good stuff your doing there

[AJPS]

yeah

I had 110mm on mine and now ive gone down to 100mm stacks and there was a difference....

good thread

[ke_70]

so was the red line the 30mm stacks vs. 70mm?

you make amazing torque

[Tim.duncan]

Red line is the first power run when I got the car
109kw
The blue is vvt tuned and 70 mm stacks 126kw

I have a graph with all the runs between the different sizes... But you have to wait ha ha

How do the 100 fit under the bonnet Dave? Where did you get them?

[ke_70]

ke70 have more room than ae86's

you should have a tad more room on yours tim cause you motors mounted straight.

[AJPS]

from sydney, they have 110mm and you need to add your own flange

[Frak]

There is still more in this engine!

[70XIN]

I'd love to see the dyno graph between different sizes, cause at the moment - it's just showing the power of getting a retune

[ke_70]

is this the first beams you've played with jamie?