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Leaded vs Unleaded fuels???

Can i run leaded in a noncat converter bike that is fuel injected?
My understanding was yes, no effect on the injectors, i am getting conflicting stories?
Not necessarily BMW but yes BMW's too.
Acid
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Last edited by acidburn; 04-17-2007 at 03:29 PM..
Old 04-17-2007, 03:08 PM
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Yes you may.

jeff
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Old 04-17-2007, 03:09 PM
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Should i though? will it gum up the injectors?, thats what some are saying, no reply from Vp yet, i really thought it was o.k.
The sv650 railed on c-12 leaded this weekend, it was unreal.
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Old 04-17-2007, 03:23 PM
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Ask the environmentalists or those who have a passing interest in the effects on people of the use of lead. I'll bet they would say no. Where do you get it these days ? From the good old boys of NASCAR or have they changed over in the past couple years ?

geo
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Old 04-17-2007, 03:41 PM
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I wouldn't think it would hurt anything, although over time it does lead to more combustion chamber deposits, spark plug deposits, etc. But that's in the combustion environment - I don't think the injectors will care a bit - I've never heard of lead deposits upstream of the combustion chamber.

But I wouldn't run leaded fuel unless you had a good reason to. Some folks think the 100LL aviation fuel (which despite the "low lead" name has 4x the lead that used to be in leaded regular) is going to make their bikes magically run better when, by itself, it probably makes their bikes run worse. And you have to do research on how octane numbers are determined - octane numbers are measured differently for various types of gasolines.

- Mark

Last edited by markjenn; 04-17-2007 at 04:28 PM..
Old 04-17-2007, 04:24 PM
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From Vp racing fuels.

I am not aware of any problems with 03 injected models using our C12.



Jay Farnsworth
Technical Director
VP Racing Fuels, Inc.


I am happpeeeee. the Sv runs real fine on this stuff.

Get it at th track or your dealer.
6.50/g at the track for c-12.
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Old 04-17-2007, 04:39 PM
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so acid, are you trying to stay ahead of the curve by conditioning yourself to buying six buck a gallon fuel?
in socal, regular pump gas is currently over $3.50. i've parked my van and now only use the '79 v-dub or the bike.
...and both get stuffed and splooged by the cheapest-priced nozzle available.
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Old 04-17-2007, 04:43 PM
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nope, just trying to optimize at the track, which has been every other week for a good few now.
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Old 04-17-2007, 07:44 PM
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that didnt work
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Old 04-17-2007, 07:53 PM
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If you're not running such high compression that you're detonating, then C12 isn't buying you much, except theoretically, consistency. And they way they've been blending U-series lately, I skeptical of even that.
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Old 04-17-2007, 09:32 PM
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It ran better than i thought i was capable of at 10500 which is where i tap the power shifter, smooth, consistant, seemless shifts, really a huge improvement, better throttle reponse over all.
Well worth it for me.
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Old 04-18-2007, 06:24 AM
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acid;
and that's the kind of result you should see with VP, camII or similar.
it's blended specifically for consistent combustion, max power, even vapor release..considerations not always at the top of the list for pump gas.

avgas is NOT designed for this purpose; it's designed for steady-state operation at higher elevation levels.

now it's time to try one of 'those' additives.

jetting and timing are key here.
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Old 04-18-2007, 11:26 AM
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I dont know who is talking about Av gas or other fuels, not me,,,, at this time the C-12 is running so well ill go with that for the next two times out in may.
The Pc3 with the enhancement program running (accel pump program) is doing an excellent job for me.
The TRE plug in from Ivan is handling the rest and doing a good job of it vs when i was stock timing retard pkg in 1-4 gears up to 1/2 throttle, now i have it all form zero throttle in all gears.
Jetting?
The fule adders you refer to are of extemely high interest.
We need to talk some time at length eudmacate me Mr. Wizard before i spec the new motor.
This is too fun and im only running a piss ant 650.
Of course the 1k bike is almost ready to role, close very close.
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Except for a few cases the murderCycle rate is relatively low on this board, keep up the good numbers.

Last edited by acidburn; 04-18-2007 at 12:29 PM..
Old 04-18-2007, 12:25 PM
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remember the original oxygenated 'elf' fuel?
that stuff was downright nasty. breathing it made me immediately violently ill, +6% oxygen, according to jon cornwell.
made typically +5 HP in any application.
at $25.00@gallon, most considerd it money welll spent.
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Better a has-been than a wanna-be
Injection is nice but I'd rather be blown
bottles are not just for babies.....
1999 R1100S;1999 KTM 380EXC street-legal motard
WASCO-framed XR883 (ex Natl#25 Todd Bowne's)
Old 04-18-2007, 01:37 PM
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if you really want to find out about fuels, hang out with the drag race crowd at some level above the weekenders.
if you know someone on an AA/altered team, pump the fuels guy (or girl) for knowledge. they've had the fuels thing down cold for a long time.
xylene, toluene, propelyene oxide, and yes ACETONE (frack you naysayers, when you actually DO something instread of kibitz endlessly maybe I'll be impressed) all have some utility here.
then there's the genuine nitro derivitaves like nitroparrifin. mucho HP increase and you can get a long engine life if you do it right.
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Better a has-been than a wanna-be
Injection is nice but I'd rather be blown
bottles are not just for babies.....
1999 R1100S;1999 KTM 380EXC street-legal motard
WASCO-framed XR883 (ex Natl#25 Todd Bowne's)
Old 04-18-2007, 01:47 PM
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i dont have time for the Drags right now, i do have quality contacts over there but they drag me in to the scene, there will be a time when i move to Or, PIR wont be the same once it Acidic.
I still ahve a few cases of Nitro and catalyst here, will it melt my Kevlar tank?
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Old 04-18-2007, 02:38 PM
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'will it melt my Kevlar tank?'
I seriously doubt it, but ask that tank guy you got it from.
way back, I'v eseen some issues with polyester-based fiberglass tanks, but that was is the dark ages and with a fuel brew that was seriously nasty, inlcuding having genuine hydrazine and propelyene oxide in the mix.
I've put many a lap around PIR. make it up this way and we'll go trail riding in the cascades..I'm breaking in a new generation of fresh meat (new cubie and new trail rider) right now. let the punishment begin...
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Better a has-been than a wanna-be
Injection is nice but I'd rather be blown
bottles are not just for babies.....
1999 R1100S;1999 KTM 380EXC street-legal motard
WASCO-framed XR883 (ex Natl#25 Todd Bowne's)
Old 04-18-2007, 03:12 PM
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Old 04-18-2007, 03:12 PM
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