record holder in big F/A mod in sweden

[gunde]

6.07 /128km/h @150m

 

[gunde]

what's your record

 

[AKSRXPilot]

Man thats moving out pretty good gunde. Great picture. She looks hooked and haulin. :bc:

 

[got-wood]

Looks good, thanks for posting. So that's a GPX motor?

 

[gunde]

no, it's a F/A pz485 engine

 

[toydoc]

You ran 6.07 at 79.5mph in 492'

I don't think you will find anyone that runs 500' ice, they are 660' (201m).
Thats more grass drag with 500'
I think Flannery old Polaris F/A ran a 6.04 in 500'
Jeff Lausten ran 86 mph in 500' on his 73 Yamaha SR

 

[got-wood]

no, it's a F/A pz485 engine

Well my friend, details! Pictures! lol.

 

[gunde]

ok, we run only on snow.
Here is a picture of the engine

 

[got-wood]

Kool!

 

[Yamaha Nutz]

What did those carbs come off of? How did u get the correct spacing?

those look to be cat or poalris rack carbs and the spacing is just fine also vmax flatslide are a direct bolt on too .............

one of our bone stock 75 433 gpx's ran 6.40 on the grass in 500 feet
last year ......give us a rubber track as a luanch pad and it could be quicker .........regardless that sled still moves pretty good

 

[big-kid]

Is that a phazer or exciter bottom end. What are you using for flywheel cover and recoil. Looks like vmax carbs.

 

[gunde]

it is a EX440 botton and flywheel.
The carbs comes from Edge 500

I'm building a new engine now!!

 

[big-kid]

i made one from exciter bottom end, phazer cylinders, GPX heads and vmax carbs. runs like a scalded dog.