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BIKELAND > FORUMS > ZX-14.com > Thread: What gas to use on the street??? NEW TOPIC NEW POLL POST REPLY
1badzx12r


Needs a life
Posts: 8321
posted April 15, 2012 09:11 AM        Edited By: 1badzx12r on 15 Apr 2012 17:13
quote:
. Yeah 50,000 miles is serious mileage,but to be honest i sell my bikes after 2 seasons or so,so i dont get a ton of mileage..



i owned around 10 bikes last year... I've owned 3 so far this year.. i currently have 2 in the garage.. I'll ride anything but a Harley ..i'll say in a good year I'll do 50,000 miles in a year on bikes.. ex-specially when riding to work and back 84 miles 1 way ...

i've only had 1 bike in a shop in 35 years .. and that reminded me why i don't let shops work on my bike....i do all my own work..
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GixxerJohn


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2012 zx14R SE
Posts: 537
posted April 15, 2012 09:22 AM        Edited By: GixxerJohn on 15 Apr 2012 17:23
wow either your a millonaire or your full of shit,i make a good living and i couldnt buy 10 bikes,either way very nice. How the hell can u get all those bikes and still eat???
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2012 ZX14R SE

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1badzx12r


Needs a life
Posts: 8321
posted April 15, 2012 09:26 AM        
quote:
wow either your a millonaire or your full of shit,i make a good living and i couldnt buy 10 bikes,either way very nice. How the hell can u get all those bikes and still eat???



i buy and resell .. i didn't say i kept them .. and i don't buy new .. i leave that to guys with more money than brains..
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rspauldi


Novice Class
Posts: 32
posted April 15, 2012 10:33 AM        
iwas very surprised to read how many racers run 87 octane. How do you control the detanation? Do u retard the timing or change the cam timing? I know bad is running E85 and and i believe he had to richen the fuel mixture quite a bit to get the bike to run properly. Just wondering what changes were made to run 87 octane safely

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shawnski


Pro
Posts: 1809
posted April 15, 2012 11:03 AM        
gixxerjohn, i don't quite understand you... you open a thread asking everyone what gas do we use.. that means that either you don't know or you are curious, then when we respond what kind we use then you bitch why we are using 87 octane and we should not.. so if you know what is recommended why in the hell you start this shit thread??.
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GixxerJohn


Zone Head
2012 zx14R SE
Posts: 537
posted April 15, 2012 12:24 PM        
BECAUSE i was between 89 or 92 when i heard 87 i thought that was crazy
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2012 ZX14R SE

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01smokes


Needs a job
Posts: 2243
posted April 15, 2012 12:42 PM        
quote:
BECAUSE i was between 89 or 92 when i heard 87 i thought that was crazy


I've sprayed the fuck out of my bike on 86 shit runs fine
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codyc_13


Expert Class
Posts: 342
posted April 15, 2012 12:45 PM        
quote:
i love this forum you guys are all GENIUS.Kawi calls for 90 or higher but you know it all fuckin assholes say ohhhhhh no i'm using 87.....are u guys FUCKIN RETARDED just put in what it calls for. I dont get it are u guys that cheap. None of u on this forum are ANYWHERE near good enough to ride this bike to its potenially so whats the difference if u use 87 over 92??????


Kawi calls for 90 because its a SAFE number for them to use, these bikes get rode in so many different conditions, they have to put a number that is safe for ALL conditions. In a racebike you want to run the lowest octane that doesn't cause and detonation, because that's what will make the best power. IMO in a streetbike you want to run a higher octane because the motor tends to get lugged around more. On the street you won't FEEL the difference, But at the track where you are fighting for every last hundredth you see the difference on timeslip.

That is why us FUCKIN RETARDS put 87 in, because we have set back, relaxed and figured out what works best for us. If I were you I would chill out, be respectful, because when you have a REAL problem that you need help with, people will look back at how you have acted before they decide to respond or not.
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06 zx14, 65", lowered, muzzy pipe, pcIII, air shifter, Litz revalve, Adams cut seat, OSR cut pan 87 pump gas.

8.97 at 149mph

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codyc_13


Expert Class
Posts: 342
posted April 15, 2012 12:50 PM        
quote:
iwas very surprised to read how many racers run 87 octane. How do you control the detanation? Do u retard the timing or change the cam timing? I know bad is running E85 and and i believe he had to richen the fuel mixture quite a bit to get the bike to run properly. Just wondering what changes were made to run 87 octane safely



No changes, detonation usually occurs when you are lugging a motor, obviously when racing you aren't lugging the motor so if is fine to run the low octane.
____________
06 zx14, 65", lowered, muzzy pipe, pcIII, air shifter, Litz revalve, Adams cut seat, OSR cut pan 87 pump gas.

8.97 at 149mph

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GixxerJohn


Zone Head
2012 zx14R SE
Posts: 537
posted April 15, 2012 05:09 PM        Edited By: GixxerJohn on 16 Apr 2012 01:26
Hey codyc if i ever have a REAL problem i wouldn't be on the internet asking strangers whose skill and intell. i dont know. But thanks.
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smokinstorm


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Old Drag Racer
Posts: 504
posted April 15, 2012 07:04 PM        Edited By: smokinstorm on 16 Apr 2012 03:06
Sorry I cannot speak about the 14R but my old school 14 was dyno tuned on 87 and I was told by the tuner to run that octane gas in the bike at all times. I for sure have increased compression vs stock and Cecil knew/knows this. I use 87 exclusively.
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2005 Turbo Busa
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Joe Cool


Novice Class
Posts: 54
posted April 15, 2012 08:27 PM        
If Ethanol is added to gasoline it raises the octane number but lowers the energy content of that fuel. The BTU ouptut per pound of gas is roughly 20,000BTUs while Ethanol is roughly 12,000BTUs. More BTUs = more heat, more heat = quicker expansion in the cylinder and more power. Could it be that the difference between 87 & 90+ octane fuels is the amount of Ethanol? All the stickers I've seen on the pumps say UP TO 10% blend..... If this is the case then the lower octanes would give more power because of the higher energy content.
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zixxer14


Pro
Damn that was Quick
Posts: 1233
posted April 16, 2012 06:56 PM        
I've been running 87 octane for over 30k miles with no problems & I live in soflo.. Got the info from Kerry at Area P exhaust right after I got the bike (an '06). I don't drag race only street riding. I had to wean myself down from 92 to 89 then to 87 only cause I'd never run a bike on 87 before & was sceptical. Not anymore, just fiil up with low test & go.
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Bad in Black


Expert Class
Posts: 348
posted April 16, 2012 07:48 PM        
quote:
quote:
Hey eklispe there are know stupid questions just asking for peoples thoughts,and u can run 87 in the old 14,but IF U ARE THAT STUPID to run 87 in the new 14r,



i like this guy he's more fun than a box of rocks .. if i remember correctly the OLD zx14 had a sticker on the gas tank saying not to run less than 91 TOO
The new 14's comp ratio is barely higher than the old......according to kawi they both require high octane. If you owned an old 14 AND a new one GixxerJohn wouldn't you know that?? And supposedly you get better combustion and a more complete burn, which equals more power, with lower octane. They say go as low as you can without detonation for best performance.
This board is chock full of racers from all levels, including world champs, so I would listen to the advice

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MJ


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Posts: 560
posted April 16, 2012 08:18 PM        Edited By: MJ on 17 Apr 2012 04:19
quote:
i love this forum you guys are all GENIUS.Kawi calls for 90 or higher but you know it all fuckin assholes say ohhhhhh no i'm using 87.....are u guys FUCKIN RETARDED just put in what it calls for. I dont get it are u guys that cheap. None of u on this forum are ANYWHERE near good enough to ride this bike to its potenially so whats the difference if u use 87 over 92??????
Man you are one of the worst idiots we've had in here in quite awhile. Did you even finish the 8th grade? Do you read your posts? You sound like an almost illiterate child with barely enough intelligence to survive life. These guys are going to destroy you in short order troll. You're way too stupid and antagonistic to survive here long, but reading your posts is making me laugh my ass off. These guys are making an ass of you, and you're helping them all the way

You can't be as stupid as you appear right? You must be some 13 year old trolling punk, otherwise you come across as the most ignorant person I've ever seen on the internet.
Go back and re-read your own posts and see if you can figure it out there meathead
Hopefully you'll be able to understand a small portion of what I wrote here.....I kinda doubt it though.
But I bet you'll understand this

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GixxerJohn


Zone Head
2012 zx14R SE
Posts: 537
posted April 17, 2012 05:59 AM        
Mj another on a long list of internet tough guys........guys like you kill me.
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Bently


Needs a life
2012 14r In Blue and no Mods!
Posts: 5428
posted April 17, 2012 06:08 AM        
quote:
Sorry I cannot speak about the 14R but my old school 14 was dyno tuned on 87 and I was told by the tuner to run that octane gas in the bike at all times. I for sure have increased compression vs stock and Cecil knew/knows this. I use 87 exclusively.


Really the best tuner around told you to run 87 in a motor with raised compression. you must be FUCKIn retarded! gixxerjohn said that's a no no. I'm searching all over for 86 but can't find any!

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GixxerJohn


Zone Head
2012 zx14R SE
Posts: 537
posted April 17, 2012 06:19 AM        
There u go bently,u tell em
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1badzx12r


Needs a life
Posts: 8321
posted April 17, 2012 06:57 AM        Edited By: 1badzx12r on 17 Apr 2012 14:58
quote:


. I'm searching all over for 86 but can't find any!



make your own ..just leave an open 5 gal. can of gas outside for 2 weeks .. DUH..
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Bently


Needs a life
2012 14r In Blue and no Mods!
Posts: 5428
posted April 17, 2012 07:06 AM        
quote:
quote:


. I'm searching all over for 86 but can't find any!



make your own ..just leave an open 5 gal. can of gas outside for 2 weeks .. DUH..


Cool thanks for the tip!

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codyc_13


Expert Class
Posts: 342
posted April 17, 2012 07:26 AM        
2 weeks is to long, you lose 1 octane every 8 1/2 days.
____________
06 zx14, 65", lowered, muzzy pipe, pcIII, air shifter, Litz revalve, Adams cut seat, OSR cut pan 87 pump gas.

8.97 at 149mph

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Rob7R


Expert Class
More balls than brains.
Posts: 190
posted April 17, 2012 07:37 AM        
I remember at one point somebody on here posted a thread where he showed the valves on a 14 running 92 and one running 87... The bike running premium had build up all over the valves. The bike running regular was clean. I personally use Sunoco 91, but that's because I just street ride, and I can't bring myself to put 87 in my bike with that little sticker staring up at me.
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Current bike- 07 ZX14 black with D&D cans, PC3, 43t rear sprocket, 6 inch extensions, roaring toys lowering links. Muzzy Bonneville Pro, TRE Velocity stacks, Puig DB windscreen, Sargent seat, Heli-risers, and throttlemeisters.

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zixxer14


Pro
Damn that was Quick
Posts: 1233
posted April 17, 2012 07:40 AM        
Take the stupid sticker off, you'll be fine.
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shawnski


Pro
Posts: 1809
posted April 17, 2012 09:43 AM        Edited By: shawnski on 17 Apr 2012 17:50
i use BENZENE on mine sometimes... 20 more hp.. benzene works better on hot and humid days and when i am riding my bike under the water..
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Y2KZX12R


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CompetitionCNC.com
Posts: 3762
posted April 17, 2012 10:48 AM        
Im eating my lunch reading threw this.....

We get engines in the shop quite often that have damage from detonation that the customer had no idea that the engine had detonation issues and "it ran fine". Engines from drag,racing, land speed racing ,street, and even a few road race customers.

First I'd like to just point out a few things. An engines fuel requirement is not static, its dynamic, and is constantly changing. The trick is to have a fuel with a high enough octane rating to not hurt the engine when it needs a higher octane rated fuel such as running at high rpm for extended time or in a very hot environment. If you guys have 87 r+m/2 octane rated fuel and you were caught in traffic in southern Texas you may run into issues. so on the street you can run into conditions where you could damage the engine.
You would never run 87 octane rated fuel for land speed racing.

The other thing is that you will not hear mild detonation. you wont feel it either. you can only hear severe detonation. If you hear it, its doing immediate damage. You wont even know that you just damaged the ring lands the bike will keep running. You wont know that you just galled the wrist pins. you wont know that you just hammered the rod bearings. Or that you just brought the piston temps up and started to anneal the heat treatment from the aluminum pistons.
However, we know that it was running too low of an octane rated fuel when we take the engine apart.
The rings are pinched, sometimes tight, and the wrist pins are galled. The pin bores in the pistons are galled up and need honing. The non bushed rod pin holes are galled up as well. If you have Carrillo rods then the bushings are shot and we need to replace them.

It happens all the time. Eventually.... you may spin a rod bearing from the pounding. The shells deform and they loose there crush fit.

So the short answer is that, YES you can run 87 octane rated fuel in these engines under some and even many conditions without causing catastrophic immediate damage. but under many conditions you are causing, at the minimum, premature wear from eliminating the oil film from mild detonation. Remember you wont hear it.

You may see a couple of hp on the dyno from the lower octane rated fuels but is it really worth it? For many guys there gonna sell the bike after a year or two so it doesn't really matter to them.


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