Author Topic: 390xp info (Read 1180 times)

mdavlee . · « **Reply #10 on:** June 03, 2013, 06:01:59 am »

If that's who I think it is he's been building saws for a long time. He semi retired and his son was doing some of the saws.

Reddog · « **Reply #11 on:** January 21, 2015, 09:08:06 am »

Bump an old thread with a 390xp question.

I have noticed this saw pulls down into mid range rpm but has a load of torque there. So I just use a 8pin to get the chain speed up.

Question is will a muffler mod raise the peak torque curve or just make it louder with little gain in rpm while in the cut?

Cut4fun . · « **Reply #12 on:** January 21, 2015, 03:51:12 pm »

The stock 385 I have run were pretty dang doggy IMO, I couldnt imagine a 8T on them. Dont recall running stock 390 only ported ones.

Hopefully others will chime in.

mdavlee . · « **Reply #13 on:** January 21, 2015, 04:58:42 pm »

Quote from: Reddog on January 21, 2015, 09:08:06 am

Bump an old thread with a 390xp question.

I have noticed this saw pulls down into mid range rpm but has a load of torque there. So I just use a 8pin to get the chain speed up.

Question is will a muffler mod raise the peak torque curve or just make it louder with little gain in rpm while in the cut?

You running a 20" or 24" bar?

Reddog · « **Reply #14 on:** January 21, 2015, 06:48:48 pm »

20" full comp, 28" and 32" full skip.

aclarke · « **Reply #15 on:** January 21, 2015, 09:17:07 pm »

Why not use a 7 pin and file a more aggressive chain?

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Author Topic: 390xp info (Read 1180 times)

mdavlee .

Re: 390xp info

Reddog

Re: 390xp info

Cut4fun .

Re: 390xp info

mdavlee .

Re: 390xp info

Reddog

Re: 390xp info

aclarke

Re: 390xp info

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