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$$ DANGER $$- VP-MR9 FUEL LEFT IN TANK - Event Date: January/01/1900 - January/01/1900

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brock Quote  Post ReplyReply Direct Link To This Post Calendar Event: $$ DANGER $$- VP-MR9 FUEL LEFT IN TANK
    Posted: February/04/2005 at 10:35am

Well, after convincing ourselves that VP MR9 fuel wasn’t as hard on Fuel systems as Nutec…..SURPRISE!   

We have THREE bikes with DEAD fuel pumps after leaving this stuff in the tank for over a month!!   

Retail price on an in-the-tank-pump (Hayabusa, GSX-R 1000 etc.) is right at $500.00    

It is a $1500.00 mistake we don’t want you to make!!! 

According to our sources (American Suzuki included), MR9 will not damage the pumps if left in the tank for a day or so….or even as long as 1 week. But anything close to 1 month…it’s over. 

They recommend draining the tank and running pump gas through the system after every use. This is what the road race teams do before they head back home. They are also careful to COMPLETELY SUBMERGE the pump in gas…not just add a little for the flush. 

I have posted previously that we had not seen problems leaving MR9 in the tank between weekly trips to the drag strip…BUT, one Hayabusa test did keep losing mph as the season progressed?!  

HMMMM…..if MR9 completely destroys a fuel pump in a month, I wonder if it will slowly hurt performance before it dies completely?! 

In the same breath, BOTH of our GSX-R1000’s ran their best MPH’s at the last race and they did not have pump gas in the tanks during the entire season?! Each bike was raced at least once per week. 

This is a new mystery to solve.... 

We will figure it out and pass the news on to YOU! 

I’ll keep you posted,

Brock 

brock@brockracing.com

 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote NOX Quote  Post ReplyReply Direct Link To This Post Posted: February/22/2005 at 12:29am
Brock, have you had any probs with U4, I have left it in the tank for weeks before with no probs, and when I had the bike at Rusk this past weekend, the mph was there, considering what the weather station was saying...............
BRING IT...........
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brock Quote  Post ReplyReply Direct Link To This Post Posted: February/24/2005 at 11:31am

This thread has created a wave of e-mails.

To answer NOX's question:

One reader sent an e-mail stating that he had run U4 exclusively all last summer in his GSX-R1000 with no ill effects. 

FYI: Our 04 GSX-R600 Supersport bike had MR1 in it for the same amount of time…..it seems fine. 

Rick Mazzola from NYC shared this note:

I have a 2002 ZX12 and have used MR9 for 5 months without flushing pump gas through the system...Also leaving fuel in for 30 days without riding it...I have had the bike sitting for the winter with pump gas and take it for a ride every week, no problems so far...Just sharing my experience with you... 

Norman Jackson posted this on psycobike.com :

Yup it happend to mines. In my ZX10. And another buddies it happened to in his ZX10. Leaving MR9 in the tank for extended periods. In my case it was about 30 days.

------------------------------------------------------------------------------------------  

I spoke with Bruce…. VP’s top technical expert at the Indy dealer show last week.

My first question was “WHY don’t you warn people?” His response was that they don’t really know EXACTLY what the problem is. He said they thought it was primarily a Suzuki issue (of course Norman's post contradicts this theory) and they weren’t sure if it was due to the fuel damaging the internals of the pump….or if it was from the pump drying out from not being fully submerged after using the MR9. I know we are guilty of running the minimal amount of fuel possible….but to us, that means running it just enough to completely submerge the pump. We check fuel level with a pen light before each run - the most the pump would ever see is MAYBE half-submerged on the trip home from the track…..never completely dry. 

His conclusion was that you run the risk of this problem when you run the rowdy fuels.

The basics are listed above. Don’t leave it in the tank for long; flush with pump gas and keep the pump totally submerged with pump gas in between uses. 

I still haven’t had time to chop up a bad pump. I’ll let you know what I find as soon as possible. 

Brock
brock@brockracing.com

 

 

 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote NOX Quote  Post ReplyReply Direct Link To This Post Posted: February/24/2005 at 10:18pm

Brock,

Heath Wilhite here, I had left U4 in my ZX12 tank for over a month before it was started, no probs, mph is still there.  I asked Chip Hunter about it on Psychobike,  and he said leaving it for a week or two was okay.........

After hearing all of this though, I think I may start taking the time to run a little pumg gas through............

 

Just some more info for ya.

 

 

BRING IT...........
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Post Options Post Options   Thanks (0) Thanks(0)   Quote iwinu2slo Quote  Post ReplyReply Direct Link To This Post Posted: August/13/2005 at 9:42pm

Ok guys I found out that 1 ounce of Marvel Mystery Oil per gallon of race gas makes this prob go away......greg

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Post Options Post Options   Thanks (0) Thanks(0)   Quote zedhead Quote  Post ReplyReply Direct Link To This Post Posted: November/17/2005 at 6:07am

Given that people with the GSX-R 100 haven't been experiencing the same problem - is there any difference in the Thou pump and the Hayabusa pump? And if the pump is the same, does it sit in a place that ensures it's completely submerged in the Thou and not the Busa?

Just a thought...

Spending far too much time talking about racing instead of actually going it...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote NOX Quote  Post ReplyReply Direct Link To This Post Posted: November/17/2005 at 11:20pm

I had a guy here that was using nutec, and it clogged his injectors he said.......

 

This guy does not work on his bike though.......

 

Since season is over, I will be draining the U4, and putting pump gas in, just to be safe.......

BRING IT...........
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SticknMove Quote  Post ReplyReply Direct Link To This Post Posted: February/09/2007 at 11:34pm

Brock, I have a question?  In some of your articles I read that you will gain more horsepower utilizing pump fuel of 87% octane is this true.  Right now I use 93 percent or Sunoco Ultra which is 94%.   What's your thoughts?

"The New King"
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Post Options Post Options   Thanks (0) Thanks(0)   Quote gms118 Quote  Post ReplyReply Direct Link To This Post Posted: June/27/2007 at 10:44pm
Hey Brock, I plan to run MR9 in my 07 zx14, I have your smeg and race map, Do I need to make any changes to the bike to run the MR9?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tommy2671 Quote  Post ReplyReply Direct Link To This Post Posted: June/28/2007 at 8:46am
No changes,MR9 is being replaced with MR11 from what i was told from our VP distributor.It's a expensive fuel BUT you'll understand why once you run it. Tommy
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Post Options Post Options   Thanks (0) Thanks(0)   Quote soetje Quote  Post ReplyReply Direct Link To This Post Posted: November/30/2007 at 8:07am
hi tommy ,on vp's site they say mr9 makes more power than the mr11 .did you try them both out?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tommy2671 Quote  Post ReplyReply Direct Link To This Post Posted: December/02/2007 at 10:39am
I didn't get a chance to do any testing we were in the process of moving our shop.I'm hoping to get some dyno time here soon.I'll let you know. Tommy
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Cycle Zone Quote  Post ReplyReply Direct Link To This Post Posted: January/12/2008 at 3:37pm
We run MR9 and it took out the fuel pump in our Hayabusa. We also ran it in our GSXR 1000 and it didn't. Both bikes were under the same environment. Some of our racers use it blended with 87 octane pump gas at a 50/50 ratio. So far from what we have seen racing and on the Dyno it didn't produce that much less horsepower and so far there were no reported fuel pump problems. This has been two seasons so far with that mixture.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote QtrMileHuslr Quote  Post ReplyReply Direct Link To This Post Posted: May/28/2008 at 10:11am

Brock and company.... If i run the Mr9 on Sunday  to the point its damn near empty then fill the tank with 87 octane and run all of it out . Will this save my fuel pump and be considered a good way to flush the Mr9 out of the system ?                                                                           

Get N Where U Fit N
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jasongillum Quote  Post ReplyReply Direct Link To This Post Posted: May/28/2008 at 12:14pm

QtrMileHuslr,

That way would be fine to flush the fuel system, but make sure you fill it up again so the seals in the pump are fully submerged in gasoline...so they do not rot.

 

Jason Gillum
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kawaking Quote  Post ReplyReply Direct Link To This Post Posted: May/28/2008 at 9:48pm
anybody try the new q16 in their bike it is supose to be like a super fuel !!!!!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote insaneparent Quote  Post ReplyReply Direct Link To This Post Posted: August/25/2008 at 4:07pm
We run a hayabusa drag bike nitrous/turbo with a mallory fuel pump we recently changed to Q16  loved the power but it seems to be eating up our fuel pumps. 1 pump will last about 20+ passes I am wondering if anyone else is having the same problem
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Raced Guy Quote  Post ReplyReply Direct Link To This Post Posted: September/29/2008 at 1:26pm
Have you guys tested to see if there are any changes from the mr9 to the mr11 that took its place???
2008 Busa-9.30@153 lowered-strapped,brocks exhaust, stock wheel base, no air shifter
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jasongillum Quote  Post ReplyReply Direct Link To This Post Posted: September/29/2008 at 2:29pm

Raced Guy,

The two fuels seem to be almost the exact same; they make about the same power and need no mapping changes from one fuel to the other.

Jason Gillum
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Raced Guy Quote  Post ReplyReply Direct Link To This Post Posted: September/29/2008 at 5:08pm
  Perfect, i just got the call 5 min ago that my parts mainly the exhaust is in and will be shipping out.  I also ordered 5 gal of mr11, i cant wait for the track on sat !!!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote orange08UK Quote  Post ReplyReply Direct Link To This Post Posted: September/30/2008 at 4:36pm

I have just had the head off of my 08 busa with only 1700 miles on it . The valves were glued up with residue from MR9 , the piston tops aswell . even the throttle was slow to return with all the toffee like residue left in the throttle boddies . i had two valves hit the piston tops where they could not move freely .

 

i always drain down and flush the system through with pump fuel after every use . i took some close up pictures of the valves and seats before cleaning them up if any one can post them or wants them let me know . but just beware of the toffee stuff inside the motor .

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Post Options Post Options   Thanks (0) Thanks(0)   Quote orange08UK Quote  Post ReplyReply Direct Link To This Post Posted: October/01/2008 at 8:10am
email sent
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jasongillum Quote  Post ReplyReply Direct Link To This Post Posted: October/01/2008 at 9:07am
thank you
Jason Gillum
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Post Options Post Options   Thanks (0) Thanks(0)   Quote qmizer Quote  Post ReplyReply Direct Link To This Post Posted: October/01/2008 at 10:50am
Any pictures?
Q`s N DA BULIDING
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Post Options Post Options   Thanks (0) Thanks(0)   Quote orange08UK Quote  Post ReplyReply Direct Link To This Post Posted: October/01/2008 at 11:30am
Quote: Originally posted by quentin on October 01 08
Any pictures?
i've sent pictures to Jason , maybe he could post some up .
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Post Options Post Options   Thanks (0) Thanks(0)   Quote qmizer Quote  Post ReplyReply Direct Link To This Post Posted: October/01/2008 at 12:14pm
Hey Mr.J can you post some of those pics
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jasongillum Quote  Post ReplyReply Direct Link To This Post Posted: October/01/2008 at 12:38pm
Give me a minute...I am trying to do it right now.
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Thanks
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jasongillum Quote  Post ReplyReply Direct Link To This Post Posted: October/01/2008 at 1:20pm

Jason Gillum
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jasongillum Quote  Post ReplyReply Direct Link To This Post Posted: October/01/2008 at 1:21pm
There they are!  Sorry it took so long...I had to put them on a website first before they could be loaded on the forum
Jason Gillum
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Post Options Post Options   Thanks (0) Thanks(0)   Quote qmizer Quote  Post ReplyReply Direct Link To This Post Posted: October/01/2008 at 1:34pm
WOW that`s a mess!!How could that happen with the tank being drained and pump gas being ran through  the fuel system? Will the mr11 cause the same damage if left in the tank over a period of time?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jasongillum Quote  Post ReplyReply Direct Link To This Post Posted: October/01/2008 at 1:50pm
I have never seen this with fresh MR9 or MR11...the fuel must have been old (or sat in the sun in the tank or can) when it was put into the bike.  The MR9 and MR11 CLEANS everything in the fuel system when first ran.  We use it on the dyno if a bike on pump gas looks low on HP and TQ...then we drain it and replace with pump gas and it usually brings them back up...unless something else is broken.
Jason Gillum
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Raced Guy Quote  Post ReplyReply Direct Link To This Post Posted: October/01/2008 at 9:19pm
   Can you spray with the mr11 ???
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jasongillum Quote  Post ReplyReply Direct Link To This Post Posted: October/02/2008 at 8:55am
NO NO NO!  If you are using nitrous, use MRX01.  MR11 doesn't have an octane level high enough for nitrous.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: October/02/2008 at 8:56am

Raced Guy, no you don't want to spray with MR11, it is too low octane, you will want to use something like MRX01.

Steve

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Post Options Post Options   Thanks (0) Thanks(0)   Quote glen Quote  Post ReplyReply Direct Link To This Post Posted: October/02/2008 at 5:01pm

If i run u4 a gallon at a time on the race track.then after the track can i put at least  2 gallons of pump gas or more for street riding, or you reccommend draining out the u4 first. <SCRIPT language=javascript>postamble();

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Post Options Post Options   Thanks (0) Thanks(0)   Quote *EJ* Quote  Post ReplyReply Direct Link To This Post Posted: October/02/2008 at 5:13pm

Glen,

U4 also leaves residue, you should drain any race fuel and add pump gas and run through to make sure all race fuel is gone .

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Raced Guy Quote  Post ReplyReply Direct Link To This Post Posted: October/02/2008 at 10:47pm
  I was just curious about the spray because a friend wanted to use some mr11 but also sprays so to bad for him !!!  I just got a 5gal today of the mr11 and wow is that some strong smelling gas.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JCRZX Quote  Post ReplyReply Direct Link To This Post Posted: March/15/2009 at 12:40pm
I converted my ZX 14 to electric now I dont have that fuel problem any mo
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