does anybody know what the spring rates are for the mugen range of springs
purple front =
purple rear =
ltblue font =
lt blue rear=
and so on

I´m not sure, but I think it was:
(lb/in)
purple front = 25
purple rear = 21
ltblue font = 31
lt blue rear= 27

A+ New Option Parts

Just putting the finishing touches on my new 5, and was wondering if anyone knows what is the max size I can cut the front windshield vent to?

i believe 60 mm

Thanks Michael...see ya in a few weeks at Norcal!

yeah 60mm

Your club racing just cut the front windshield out

Is giving up downforce and getting more airflow by cutting the largest allowed hole ALWAYS better? Or do you guys ever cut a little smaller hole to gain downforce?

actually i do. I have been cutting them down to about 52mm but really can't tell a difference....maybe someone else has better experience with this

It's been suggested you actually get more cooling from your side windows, than the front one, likewise some of your air flow comes from under the car as well.

Eh, sometimes this board has crazy lag, everything I seem to post lately seems to time out at some point...

i believe the regulations differ from 50 mm to 60 mm.
I cut as small as possible to get downforce, but you have to use the 5`th post in the front middle. I also only cut the right side window and leave the left as it is. I think it allows/gets more top speed.

Ready for the Motonica race this weekend in Los Angeles. It is a board track with high tire wear, i hear. I'll post my setup if I do well....

Mugen MTX-5



will be racing this season aswell, novarossi power, futaba electronics