I went E85 and made over 230whp!! (dyno vid included) - Page 5 - BMW S1000RR Forums: BMW Sportbike Forum
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post #41 of 56 (permalink) Old 01-15-2018, 10:32 PM
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Originally Posted by oz14 View Post
Are you checking valve clearances (setting piston TDC, and using test springs that allow you to measure the actual valve clearance)?
Iíve seen more than one engine crank over fine and not appear to touch yet under load/revs hit the piston and do damage?


With the alpha Camshaft the lowest PTV clearance is actually 12 degrees BTDC & 13 ATDC so itís better to check at 10 before and after with normal Camshaft.


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post #42 of 56 (permalink) Old 01-16-2018, 09:33 AM
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Im going to start a new thread for PTV clearance checking. Sorry i hijacked your E85 thread teh1337.
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post #43 of 56 (permalink) Old 01-26-2018, 07:09 PM
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I am slightly confused. We understand that the bike went from 190 to 230. That is approximately a twenty percent increase, and we know that E85 requires ~ 30% more fuel for the same power. Thus the fuel consumption seems to have increased by ~50%. Do the injectors and fuel pump really have this kind of spare capacity? I have never built a hot-rod bike, but I have built hot rod cars, and larger fuel injectors and larger fuel pumps are pretty regular necessities to make that much more h.p.
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post #44 of 56 (permalink) Old 01-26-2018, 07:19 PM
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Originally Posted by clutchslip View Post
I am slightly confused. We understand that the bike went from 190 to 230. That is approximately a twenty percent increase, and we know that E85 requires ~ 30% more fuel for the same power. Thus the fuel consumption seems to have increased by ~50%. Do the injectors and fuel pump really have this kind of spare capacity? I have never built a hot-rod bike, but I have built hot rod cars, and larger fuel injectors and larger fuel pumps are pretty regular necessities to make that much more h.p.
the e85 kit includes a new fuel pump. You add a fuel controller to upper injectors for Bren tune method of e85
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post #45 of 56 (permalink) Old 01-26-2018, 07:35 PM
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Originally Posted by smash adams View Post
the e85 kit includes a new fuel pump. You add a fuel controller to upper injectors for Bren tune method of e85
Thank you for the edification.
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post #46 of 56 (permalink) Old 02-07-2018, 07:32 AM
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For what it is worth, each 12 thousandths removed from the deck height clearance retards the cam timing about 2 degrees. e.g. 107in / 109ex turns into 105in / 107ex
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post #47 of 56 (permalink) Old 04-30-2018, 05:26 AM
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Sorry about bumping an old post but out of all the stuff that was said, I wanna know how this dude was getting 200 miles to a tank? Is the tank on the 2015 twice as big as my 2014? I get the gas light at like 80-90 miles and then I can go about another 20 before filling up. He said fuel consumption went from 200 per tank to 140 with e85. I'm confused...
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post #48 of 56 (permalink) Old 05-18-2018, 12:10 AM
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Originally Posted by shadowchemos View Post
Sorry about bumping an old post but out of all the stuff that was said, I wanna know how this dude was getting 200 miles to a tank? Is the tank on the 2015 twice as big as my 2014? I get the gas light at like 80-90 miles and then I can go about another 20 before filling up. He said fuel consumption went from 200 per tank to 140 with e85. I'm confused...

When switching to E85, it takes more fuel to burn than a regular 93 octane fuel.
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post #49 of 56 (permalink) Old 05-19-2018, 10:05 PM
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When switching to E85, it takes more fuel to burn than a regular 93 octane fuel.
Yup I get that, but I was wondering how his stock bike got 200 miles to a tank when mine gets nowhere near that lol.
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post #50 of 56 (permalink) Old 05-19-2018, 11:34 PM
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I am very skeptical about posts made regarding brentuning.

Can you certainly pick up a bunch of power modifying the compression ratio, head, cams of course. But the whp numbers reflected by their "mail order tunes" services are unrealistic.

Yes, you have trophies and congrations on winning events. I'm not knocking that, just wondering about 1/2 mile mph numbers. Bike weight and rider weight also play huge factor.

My quicksilver says "POW!"
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