ArboristSite.com Sponsors
 
 


372xp x-torq port or not

Discussion in 'Chainsaw' started by Jimmy lockard, Mar 9, 2014.

  1. Jimmy lockard

    Jimmy lockard ArboristSite Member

    Joined:
    Jan 23, 2014
    Messages:
    79
    Likes Received:
    29
    Location:
    maryland
    I have a new 372xp xtorq that I'm debating on porting I've been reading that there have been issues with the main bearings on this model which concerns me alittle I guess I'm looking for recommendations

    Would say 32:1 mix ratio help even though the saw will be ported

    I have heard that the non xtorq version turns out better than the xtorq when ported


    1st keep saw stock
    2nd keep saw & port it
    3rd sell saw maybe look into different model


    Funny thing is I don't hear that problem with other models

    For instance interested in 346xp & 562xp as well

    Is this a common complaint in say the 385xp 272xp or 372xp non xtorq

    I will say I wish I found arborsite before everyone on here provides a wealth of knowledge thanks for reading & thoughts
     
  2. Jacob J.

    Jacob J. Tree Freak

    Joined:
    Aug 26, 2001
    Messages:
    16,023
    Likes Received:
    3,687
    Location:
    Oregon
    If you want the most out of that saw, find a good used OEM 71 or 75cc cylinder and get a new piston and rings and have it ported. I haven't seen where any of the saw builders are having the best luck with porting the X-torq top end.
     
    dl5205 likes this.
  3. nmurph

    nmurph ArboristSite.com Sponsor

    Joined:
    Nov 26, 2007
    Messages:
    15,282
    Likes Received:
    5,364
    Location:
    Somewhere in the space-time continuum
    Yes, but the bottom ends are the same bw the XP and XT.
     
    mdavlee likes this.
  4. dl5205

    dl5205 Member

    Joined:
    Mar 30, 2008
    Messages:
    1,171
    Likes Received:
    438
    Location:
    AR, USA
    I don't think I would worry about any supposed "issues" with the main bearings on what is, without a doubt, one of the most successful 70cc saws ever made. Keep your chain sharp. Don't run your carb adjustments over-lean, run quality fuel mix thru it, don't worry about it.

    Port it if you want. Even if you are production logging, Many ported 372xPs (x-Torq or non) have lived long, productive lives in the working woods.

    If you are craving a different 70cc saw, by all means get one, but no need to doubt the quality of what you currently own.

    I can't decide between 32:1 and 40:1, so I mix my quality synthetic oil @ ~36:1. I run the same mix in all my saws.

    My opinion, and it's only worth what you pay for it, is some folks try to get more 'max RPM' out of their saws than is practical. Regardless of model, ported or not.
     
  5. Stormy

    Stormy ArboristSite Operative

    Joined:
    Feb 17, 2014
    Messages:
    224
    Likes Received:
    113
    Dang. I read here plenty and never came across main bearing troubles until recently. Already bought a new 365 x-torq, to go with our 445, and reckon we'll just keep 40:1 ultra in both, tune a tad rich, and keep stock during warranty. It seems strange though...the model's been around how long? Maybe the bearing issue isn't as prevalent as might seem? But now, in the last week, this is the 3d time I've heard of it.

    Edit...posted while above was being posted. I know what happened. I read almost everything on the web about the saw, and only recently have scrounged the bottom of the barrel where a relatively few failings have gathered for me to finally find.
     
  6. dl5205

    dl5205 Member

    Joined:
    Mar 30, 2008
    Messages:
    1,171
    Likes Received:
    438
    Location:
    AR, USA
    I agree with your preference for non-strato, but's that really Just my Opinion. If I were looking to build a Full-Out 372/2171, I'd probably invest in a NEW oem 75cc cyl. They're not that high. Even though I think I've seen some builders say they prefer the 71cc jug.

    However, I'm sure t Landrum would tell you he's very happy with the gains he's getting from the strato saws. And plenty of strato 372 saw owners will tell you they like the xTorq saws better than the non strato versions they previously owned.
     
  7. Jacob J.

    Jacob J. Tree Freak

    Joined:
    Aug 26, 2001
    Messages:
    16,023
    Likes Received:
    3,687
    Location:
    Oregon
    I've owned two 372XTs, one brand new, and they're completely unimpressive stock- even more so than a regular 372. I've also talked to Terry and other builders here directly and they still prefer the traditional 372 top end for the most gains. I know the XTs can be made into somewhat decent runners, and that's why I said "if you want the most from that saw..."
     
  8. dl5205

    dl5205 Member

    Joined:
    Mar 30, 2008
    Messages:
    1,171
    Likes Received:
    438
    Location:
    AR, USA
    I still agree. Except, maybe, for calling a stock 372 'completely unimpressive'. And, while the old school jugs may give the MOST, I wouldn't want to leave the impression that porting an X Torq is an exercise in futility, at all, but rather that good gains can be made.
     
  9. MGlazier28

    MGlazier28 ArboristSite Member

    Joined:
    Jan 6, 2009
    Messages:
    73
    Likes Received:
    12
    Location:
    Byron, NY
    Anyone done a ported 372 xpw vs. Cylinder, vs. Xp? Curious how different they would be if all are ported.
     
  10. dozerdan

    dozerdan ArboristSite.com Sponsor

    Joined:
    Jul 29, 2001
    Messages:
    1,730
    Likes Received:
    374
    Location:
    Cental Pa
    The EX uses the same bottom end as the XP did. I have seen many crank bearings fail on low mileage XT's. The XT uses a lot less fuel vs the XP. Less fuel is less oil in the bottom end.
    JJ is correct, you can make good gains out of the XT cylinder but not to the same level as the XP cylinder.

    Later
    Dan
     
    mdavlee likes this.

Share This Page