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103 with Andrews 57h cams tune

  • DocGreen
    DocGreen
    5 years ago
    Gents, mate with a 2013 FLSTC is thinking of swapping out cams, and from what we've read the 57h seem pretty popular. After more low to midrange torque than top end.
    Bike is stage 1 at the moment - SE hi flow filter and Freedom True duals. Currently running a tune from Retro which runs great. He has the SE Super Tuner Pro.
    Looking through available cals on the SE software, we found 358SDS003.dt0 for a stage 2 with cams - but these run the 255 cams which are quite different to the 57h.
    We did find 621SGL204.dt0 for a 2016 bike, which uses the 585 cams which I believe are closer to the 57h specs - but this is a FBW tune, and it runs bigger injectors, 4.349gms/sec vs 3.91gms/sec.
    Can anyone any offer advice (even cam selection, as nothing purchased yet), I know he will have to look at getting it dyno'd to dial it in, but we'll need something to get started as we'll be doing the work together.

    thanks

    DocGreen
  • Ken in Cairns
    Ken in Cairns
    5 years ago
    I used a stock sert map for the 585 cam on a pretty stock 103 when I fitted my 57's as that cam is very close in lift and timing to the Andrews 57H. I had to open and look at the maps one by one as the auto search didn't yeald any results and most of the stock sert 585 maps are for 107's or 110's with 10.5 : 1 compression etc.
    The map I used was 621SGG203.dt0

    With a couple of tuning runs it made 83.8 HP and 78.23 ft/lb's but was leaning out in the top end despite my map being on the rich side as you can't see that part with the sert and the narrow band O2 sensors.
    I just had it tuned and that has gone up a little to 88.14 Hp and 87.20ft/lb's with the curves being nearly identical till the slight lean out on the upper end cost me the power and torque.

    I can't say that I'm totally happy with the new tune for the cost, but the bike is running smoother at slow cruise speeds, but he did enrich the map a lot more than I would have across the whole range, so my fuel range is now 290 km per tank, down from 320, was 340 stock.

    Cheers
    Ken
  • Retroman
    Retroman
    5 years ago

    I have seen very good results using the SE 255 cam in both older 96 cube bikes and in 103 Dynas as young as 2016

    Often available for cheap on ebay/gumtree from "upgraded" CVO's where the 255 is the OEM cam.

    Cam designed for low end torque and there are calibrations for it straight out of the Supertuner pro file list

  • Undercover
    Undercover
    5 years ago
    I've got the Andrews 57s.  Air-filter, Supertrapp Supermeg 2-1 with 10 disks.   The bike is a 103 FXDF and it's making 96hp and 107ftp. Dyno tuned at a good shop.

    I like the way it performs.
  • Ken in Cairns
    Ken in Cairns
    5 years ago

    Not to hijack the thread but that was more like the numbers I was expecting Undercover, mid 90's for both would have been OK.

    I have the same exhaust system, Supertrapp 2:1 with open cap but with I think 18 discs fitted.

    As I said I was a little disappointed, mainly because of the cost of getting it done, should have taken more than just under 2 hours.....

    He also said he "locks the map" so it can't be copied onto other bikes etc, not sure how hew has done that  on the SERT, maybe some other software I don't know about.

    Haven't plugged my laptop and Sert in to see if I can open his map, been busy house-painting :(

    I might go back and have a yarn with him, I did say I wasn't after Peak numbers, just the best tune to make HP and Torque quickly, but having ridden it 500 KM on the weekend I don't think it is running $480 better than it was before (except for having the VE tables and AFR's sorted out, mainly in the top end, which I couldn't do), and maybe even a little bit worse starting cold and hot, and possibly off the line from a standing start as well.

    Cheers

    Ken


  • DocGreen
    DocGreen
    5 years ago
    cheers for the replies guys.
    Is close enough to $500 for dyno tune fairly average? Never used one, so no idea.
    Retro, the SE 255 cams - do they need more compression to make them work ok? Mate isn't planning on pulling heads or anything, most likely just cams/bearings, new lifters and adjustable push rods.

    DocGreen
  • Sparra
    Sparra
    5 years ago
    I put 255's into my 2010 Wideglide and did a few auto tunes with Power Vision. Didn't do anything else and the difference is really noticeable in the bottom/mid range rev's. I don't ride fast but for passing cars and trucks quickly it definitely helps.
      
  • Retroman
    Retroman
    5 years ago

    Doc the 255's will work well. No need to change heads or springs or anything

    They drop the max revs compared to other cams like 204's , but the low down spank is wonderful

    I found a set for cheap on Gumtree and put them into my mate's 2007 96 cube Heritage. Bike already had stage 1 air and tapered mufflers since new.

    Quite a noticeable difference with an original up to 2008 SERT tune ( NOT the Supertuner pro ,but the earlier version )

    There was a Calibration for a 103 cube , 176MS003. Slightly tweaked the cal and the bike runs real well for an old girl.

    Absolutely the best bang for the buck bar none.

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