Dyno runs on the GSX1170

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megawatt
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Dyno runs on the GSX1170

#1 Post by megawatt » Sat Sep 29, 2018 7:31 pm

What a fantastic day with Richard Board on the Dynabike dyno at Moto Works, Sittingbourne. Previous highest rwbhp was 113 with 36mm EFE carbs and pod filters. I had convinced myself that previous popping and flames out of the V_H were caused by dodgy wiring and ignition. Think I sorted that, so I begged Richard to lend me his RS 36 flatslides and pod filters. Different bike. Still, er, interesting at low revs, but above 5000 it was fuelling perfectly. Best run was 118rwbhp, the best ever. Then I thought I'd try a bit more ignition advance with the Shell V power. Best run 123.5 rwbhp. There's more to come from this 1170 motor.
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Re: Dyno runs on the GSX1170

#2 Post by Stu » Sat Sep 29, 2018 8:14 pm

torque figures??
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Re: Dyno runs on the GSX1170

#3 Post by megawatt » Sat Sep 29, 2018 8:48 pm

Not really interested in torque on a dragbike, but I'll dig em out.
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Re: Dyno runs on the GSX1170

#4 Post by megawatt » Sat Sep 29, 2018 9:27 pm

Max torque at 115 and 118rwbhp was88 and 82. Max torque at 120 and 122 was 87 and 86.
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Re: Dyno runs on the GSX1170

#5 Post by fastbob » Sun Sep 30, 2018 6:07 pm

I've had plenty of opportunities to put both of my GSXR 1100s on a free Dyno but I've always chickened out. I just don't think I could bear to watch or listen. I nearly got round to it but a V-Max spat all it's oil all over the dyno before my go .

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Re: Dyno runs on the GSX1170

#6 Post by megawatt » Sun Sep 30, 2018 6:54 pm

I've done many more Dyno runs at 10,000rom than strip runs. It will break a badly built engine, not a good one.
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Re: Dyno runs on the GSX1170

#7 Post by Mickly » Sun Sep 30, 2018 7:12 pm

I put my old Speedtriple on a portable dyno at a show.
It’d got a 3:1 Zard freer flowing pipe and suitable tune.

The power wasn’t up by much ( can’t remember the exact figure ) but the guy running it commented on how smooth the curve was without and dips or spikes, just a nice upwards curve with a short but gentle drop off just before the rev limiter kicked in, Reinforcing what I had felt on the road.

However having some mechanical sympathy, hearing it revving it’s tits off in a metal box had me wincing a bit !!
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Re: Dyno runs on the GSX1170

#8 Post by Tango » Sun Sep 30, 2018 8:50 pm

That's pretty respectable bhp and torque, Alan.......how much more do you reckon you'll get out of it?
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Re: Dyno runs on the GSX1170

#9 Post by Mr Fro » Sun Sep 30, 2018 9:42 pm

Tango wrote:
Sun Sep 30, 2018 8:50 pm
That's pretty respectable bhp and torque, Alan.......how much more do you reckon you'll get out of it?
Loads more if he fits a supercharger. :-D

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Re: Dyno runs on the GSX1170

#10 Post by megawatt » Sun Sep 30, 2018 9:46 pm

I ran 11.6 at Brighton and my last run felt quicker, but the timings were suspect. I have yet to fit two step and air shifter . I havent dialled the cams in or lowered the front end. I reckon there's a 10.9 in it and maybe 130 rwbhp. Not bad for a 37 year old air cooled heavy lump and a nearly 60 year old rider.
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