draggsxr1000
Expert Class
Posts: 190
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posted December 26, 2004 07:14 PM
what kinda of fuel are u using
I have a stock gsxr 1000 that i do spray sometimes. Im lookin at the vp line. Also what kinda hp gains here. Without mapping
  
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draggsxr1000
Expert Class
Posts: 190
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posted December 27, 2004 03:41 PM
everyone using pump gas huh???
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entropy
Moderator
Posts: 8671
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posted December 27, 2004 04:11 PM
dragg,
I use VP C-44 on the advice of the VP guys in San Antonio.
no idea what hp gain is, as i don't run my motor on pump gas cause the CR is too high.
I map often 
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CrotchRocket
Moderator
Bracket Racing with Betsy
Posts: 8038
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posted December 27, 2004 05:44 PM
I use MR9, worth at least 5 horse power...No spray for me!!!
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Jason Miller StreetBike Seminars
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SPROCKET
Expert Class
Posts: 211
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posted December 29, 2004 09:29 AM
MR9 is only 87 octane. Why not use MR1 or MR8? I've run half VP-110 and half pump gas(91) and it ran great.
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SPROCKET
Expert Class
Posts: 211
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posted December 29, 2004 10:38 AM
Also, why use oxygenated fuel?
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entropy
Moderator
Posts: 8671
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posted December 29, 2004 03:54 PM
quote:
Also, why use oxygenated fuel?
Oxygenated fuel = hp: typically 3-5%
hi octane = detonation protection, NO extra hp
kinda simple
BUT, watch out, i toasted a motor running oxy fuel with hi-ish cr; that's a no-no. Bad ju-ju, fo sho!
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CrotchRocket
Moderator
Bracket Racing with Betsy
Posts: 8038
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posted December 29, 2004 09:21 PM
Karl, I was told that the MR9 is fine for a stock motor 12 or Busa...Was the CR more than stock???
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Jason Miller StreetBike Seminars
*****DragRacers do it better, because they dont cut Corners*****
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entropy
Moderator
Posts: 8671
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posted December 29, 2004 11:04 PM
CR,
yep, 14.4:1 at that point. I was using Nutec. it worked great at stock CR, and even worked at elevated CR (didn't measure it) with 1361 at 1/4 mi, but the mile is not forgiving.
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Lorcan
Expert Class
Posts: 327
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posted December 30, 2004 10:26 AM
 Edited By: Lorcan on 30 Dec 2004 10:27
We've been on 97 octane pump fuel (R+M/2) until now on 13.5:1 CR but will be spraying next year on 13:1 and using 76 brand 118 which is very expensive here but cheaper than an engine rebuild!
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draggsxr1000
Expert Class
Posts: 190
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posted December 30, 2004 01:05 PM
i was told mrx01 with or with out spray. what ya think
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RAC4IT
Needs a job
Bergie
Posts: 3009
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posted December 30, 2004 10:11 PM
Edited By: RAC4IT on 30 Dec 2004 22:12
I think you're all wasting your money on specialty fuels. Then again this is the same group that needs air shifters LOL
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CrotchRocket
Moderator
Bracket Racing with Betsy
Posts: 8038
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posted December 31, 2004 07:33 AM
Hey Berg, The MR9 works real good for me...Believe it or not it made the 60' smoother and made it somewhat easier to handle the 57" wheelbase...
I know it seems like it dont make sence but it gave me more HP and caused me to wheelie...But with the extra HP, I dont have to leave at such a high RPM and allowing me to get the throttle/clutch open asap!!!
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*****DragRacers do it better, because they dont cut Corners*****
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draggsxr1000
Expert Class
Posts: 190
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posted December 31, 2004 09:59 AM
Rac if u show up for our race im gonna steal your bike and put an air shifter on it. Take as many pics as i can and post them all. Just remember if ya cant beat em join them right. guys
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RAC4IT
Needs a job
Bergie
Posts: 3009
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posted December 31, 2004 01:14 PM
Edited By: RAC4IT on 31 Dec 2004 13:16
Oh I believe the fuel helps as I've seen it work on the dyno before and after, but I still think its a waste of money unless you're going to a dyno shootout.
+5 hp isn't going to make or break your race. $80 for 5 gallons of fuel doesn't make sense. The next size up nitrous jet costs about $2, and will give you a lot more than 5hp, and you only need to spend $2 once.
I guess if I had an unlimited racing budget, I would buy racing fuels, but for me $80 for oxygenated fuel is plain retarded.
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entropy
Moderator
Posts: 8671
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posted December 31, 2004 02:18 PM
quote:
... for me $80 for oxygenated fuel is plain retarded.
ohhhhhh, someone pissed in Bergie's Wheaties today, eh?
I don't agree. nope. not if you are looking to improve yer personal best.
sure, juice is a good quick cheap hp adder, but not everyone is spraying.
3-5% = 6-10hp increase fer yer typical built motor w/oxy fuel.
$1500 on cams & tuning won't give you that much.
$2500 on cams, porting, stacks & tuning MAY give that much, MAY...
6-10hp = 1.5 - 2.5 mph in 1/4 mi
just my .02
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draggsxr1000
Expert Class
Posts: 190
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posted December 31, 2004 02:26 PM
Hey entropy he just mad cause santa left him coal in his stocking instead of a muzzy air shifter.
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entropy
Moderator
Posts: 8671
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posted December 31, 2004 02:41 PM
quote:
Hey entropy he just mad cause santa left him coal in his stocking instead of a muzzy air shifter.
bahahahahah!!!! i just spit beer on my keyboard!!!
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your car is slow
Needs a job
Fuck Nitrous...Got Boost?
Posts: 4089
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posted December 31, 2004 03:00 PM
Its nice fuel for those that wanna spout off the "no motor work" or "all motor" or "no nitrous" etc etc comments.
Dont think anyone argued that it wasnt good stuff...but as far as cost/gain ratio is concerned...far better choices out there 
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Lorcan
Expert Class
Posts: 327
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posted December 31, 2004 05:44 PM
I've seen too many detted turbo engines on low octane. Not making that mistake again with our nitrous motor!
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kilrbusa
Parking Attendant
Posts: 16
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posted January 05, 2005 01:19 AM
mr9 is the best fuel out there right now and i seen plain and simple gains of 2-3mph just by dumping it in. It works!! Its not gonna give the increase like a power adder such as NOS or turbo, but it will be noticeable.
Rac4it--that green zx12 u have doesn't have an airshifter?
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draggsxr1000
Expert Class
Posts: 190
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posted January 06, 2005 02:22 PM
Tell us about this kiirbusa. Hes not been running an air shifter has he.
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