ktm 450 520 kit

[tbsfarms99]

Is anybody running a ktm450 with the Brewster West 520 kit and how do you like it? Thanks

 

[wwillf01]

I am running the Kms big bore this season I will let you know...


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[M5-]

My Thumper Racing 520 blew up, it didn't care for the revs after the big bore, brand new KTM con rod failed.

M5

 

[powderzone]

I've built a couple of 520's now with Brewster and they are the ticket. I've run everything including a 300xc, big bore, then 520 with nitrous, and another build with 520 turbo.
Then last winter I decided to go back to naturally aspirated with the big bore, high compression piston and head ported / polished. Couldn't be happier. It just works.
It is important to run the right fuel if you decide to go with the high compression piston. And frankly, I wouldn't bother with the big bore unless you also do the high comp piston.
I only run Av Gas. or you can run a 50/50 mix of premium / race or premium / av gas.

 

[tbsfarms99]

HP?

Powderzone what is the HP on this kit??

 

[wwillf01]

I've built a couple of 520's now with Brewster and they are the ticket. I've run everything including a 300xc, big bore, then 520 with nitrous, and another build with 520 turbo.
Then last winter I decided to go back to naturally aspirated with the big bore, high compression piston and head ported / polished. Couldn't be happier. It just works.
It is important to run the right fuel if you decide to go with the high compression piston. And frankly, I wouldn't bother with the big bore unless you also do the high comp piston.
I only run Av Gas. or you can run a 50/50 mix of premium / race or premium / av gas.

Why did you decide to go back to naturally aspirated?

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