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October 22nd, 2015, 10:11 AM   #1
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TomTom's 570 70 degree engine tinkering.

This isnt going to be anything new, just my reflections on trying a fairly well established concept to get power out of the 570 70 degreer, not saying it will work, but I set my mind to try it out, and that is perhaps the proper description here

Bike is a 2009 570FE and is used mainly for ice racing, and with this type of riding you need all the power you can come up with, no doubt.
I already ported the heads to the specs Ive found working on similar engines along with good compression, ie around 13:1. This rendered a very strong engine and much better top end than oem offers but its still flat on top.

So now Im onto trying some of the expected weak points, 1.Im still using the oem exhaust 2. I still use the oem throttle body. (The oem exhaust is not a good idea to use anyway as the end cap will evetually work its way lose being on wot for most of the time).

So I ordered the FP-engineering throttlebody along with their ecu and quickshifter.
Exhaust choice fell on Doma full according to FP's suggestions.

Sorry if Im a teaser here as I havent got the goods just yet, but its going to get here next week as it was shipped today. Pics next week and the build begins!

Cheers! Tom
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October 22nd, 2015, 02:13 PM   #2
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Santa Is coming early this year
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October 23rd, 2015, 10:29 AM   #3
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Hehe, he didnt come today which means Ill have to endure the weekend.
Luckily I have my 450exc to ride in the meantime to keep attention directed elsewhere, trails tomorrow and sunday mile rallye on grovel up a hill
Ill be back as soon as stuff turns up!
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October 23rd, 2015, 12:04 PM   #4
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Yea go big, or go home.







Had to mill out a custom Map sensor bracket/holder. Fp didn't include one so had to make myself one:










I'm quite happy with the current setup. Top end is definitely lively. The motor needs tb and good duration cam along with ported head to make power. I had the ignijet ECU from fp, but I quickly sold it. It was horrible to tune as the software crashed all the time while making adjustments on dyno. Not even one clean pull was able to do. Hopefully you'll have better luck with ignijet unit.

I still wanna try the GET ecu...
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October 23rd, 2015, 12:59 PM   #5
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maKe, what windows version were you using? I have a laptop that I need to reinstall windows on that will be my workshop computer. I read that you had problems with the software and thinking of installing XP as the software is probably done during that era.
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October 23rd, 2015, 07:18 PM   #6
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It was Xp or Vista on the tuners laptop. It worked and made connection to the ECU just fine, but when doing adjustments or varying rpm's the columns just were frozen, or lost connection. Really nice to hold steady rpm and you had no idea on what rpm and tps axis it was when setting up fueling.

Basically the ecu is somewhat crude on the algorithm side of things. Can get tuned quite good on WOT but part throttle and throttle response and transient response is going to suffer compared to stock IMO.

Get it tuned and tell how well it goes! I'm interested to know.
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October 24th, 2015, 02:02 AM   #7
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a tip - virtual machines can run any version of windows so you can experiment with different OS'es ... usb passthrough and realtime operation has become quite good so it ought to work for data acquisition

virtualbox is free and decent, vmware workstation costs but is worth it .. (parallels is pretty good too, costs, and might be better for timing sensitive stuff, or worth trying if the others don't work well, but it isn't as polished or solid as vmware so not the 1st choice)

let me know if you need help or more info with VM setup! i work a lot with it professionally
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October 24th, 2015, 06:05 PM   #8
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I can personally vouch for that, windows xp works flawlessly with dosbox on my windows 7 machine, and the crappy User Setting Tool along with it. Thankyou tourist for your help on that one Any chance you could crack the ecu language so I can turn off the f@$^%{ acceleration correction ?

Last edited by berglsmerg; October 24th, 2015 at 06:09 PM.
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October 24th, 2015, 06:15 PM   #9
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maKe, a fellow berg nut loaned me his Wego, it logs rpm, tps and AFR, using that and the UST I was able to find a good enough setup for part throttle and transients, but you're right it's clunky as hell and no control of the acc. correction sucks.
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October 25th, 2015, 01:21 AM   #10
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Hmm, I hear what youre saying, I still have the posibility to stick with the oem ecu and the bazzaz unit that Im currently using, but I will give the FP ecu a whirr never the less.
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