Heavy hitters from Thunder Products

[706069]

I have a little weight problem. I bought a set of heavy hitters HHY48 from Thunder products and the weight on those was 1=0.9g 2=2.4g 3=4.5g.

Do i need more weigth.......

KN racing will send me new one´s HHY53

Anyone that can tell me or have similar problems with the weights.

I need some help to tune in the hitters.

Original 2008 MTX

 

[Turk]

If your sled is not boosted you have lots of adjustment. The hh,s need usually 10 grams less then stock 4 stroke weights due to the more aggressive shift curve.

 

[706069]

If your sled is not boosted you have lots of adjustment. The hh,s need usually 10 grams less then stock 4 stroke weights due to the more aggressive shift curve.

Thanks!

The original stock is 65 grams so i need only 55g.
I measured HHY48 with the weight on it and come up to 59g. It didn´t work.
I need to work with this.........
Maybe the new one´s fit the profile better HHy53.

 

[Turk]

use the 48 gram ones. the 53,s might be too heavy

 

[706069]

use the 48 gram ones. the 53,s might be too heavy

Thank´s
I have shipped the HHY48 back to retailer. The new arrives on thursday.

 

[Rx1M5]

I'm trying my old Heavy hitters this year. I haven't run it yet but I have the 48's loaded to 59 grams. Might be a tad heavy but we'll see. I want it to pull 9200 rpm with the pipe then pull down to about 8900 on a climb.

Rx1M5

 

[pof54]

Any one have the best setup for the 48gram set. stock nytro mtx. Which bolt/screw in what hole and washers?? about 1000ft to 3000 ft

Thanks

 

[706069]

I have a setup for Sweden that works.
Heavy hitters 53,2gr
Hole no.1 1.2gr
Hole no.2 3.0gr
Hole no.3 5.8gr
My rev is now 8700-8800rpm and in deep snow around 8200-8300. I still have some adjustment to do but it runs like hell.

 

[pof54]

706069!!

Is your sled stock!! If, why did not the hhy48 work for you??

 

[706069]

It´s not fully stock because i have changed following
New exhaust
New tooth drive sprocket


I tried HHY48 but i didn´t work, it overreved at once to 9200rpm. KNracing send me new one´s HHY53,2gr. Now it work´s.