Author Topic: Larger In Tank Fuel Pump? (Read 9048 times) Tweet

slatroni · « **on:** May 18, 2012, 01:58:34 PM »

Looking at the data from Mojave, I think I am out of fuel pump on the top end. I kept adding fuel but only small changes were showing. What IN TANK FUEL PUMPS should I be looking at?

Thanks for any help!
Steve

sportbikeryder · « **Reply #1 on:** May 18, 2012, 02:17:07 PM »

Walbro 255 or a bosch pump.

You could also be out of injector.

Are you running a stock tank and pump?

Are you running the bike that is in your signature? If so, you are probably right at the limits. I would recommend an increase in pump size as well as increasing the pump pressure if you are still using stock injectors.

fvance · « **Reply #2 on:** May 18, 2012, 03:02:11 PM »

Steve, I run the Bosch #69420 and s2000 injectors on both my bikes. The 1340 ran out of pump/injectors on MR12.

slatroni · « **Reply #3 on:** May 18, 2012, 05:13:33 PM »

I am using a stock pump with with a crushed regulator (58psi). The injectors are stock as well. We bumped up the limiter to 11200 so I stuck a 6 in the 100%tps. After the first run the Wego said to add another 7. We did that and we were still @ 13.5afr. I was wanting a 12.6, added another 6 and got a 13.2. What do ya think?

Amode · « **Reply #4 on:** May 19, 2012, 08:33:39 PM »

At least bigger injectors. What we need is a program to adjust the pusle witdth of the injectors.

slatroni · « **Reply #5 on:** May 20, 2012, 11:07:22 AM »

So more fuel pump wont help fueling on the top end? What size injectors should I look for? I put some 2000s in and couldnt pull enough fuel out so I put the stock ones back in.

fvance · « **Reply #6 on:** May 20, 2012, 08:38:42 PM »

As I said I run s2000 and bosch pump. I flash 150% compensation in my ecu. That gets me pretty close.

slatroni · « **Reply #7 on:** May 23, 2012, 08:01:59 AM »

will all years of s2000 injectors fit the busa?

pasodude · « **Reply #8 on:** May 23, 2012, 08:38:44 AM »

Steve , I use a rcc fuel rail ,& bosch fuel pump! Had the same problem aew years back. Still using stock injector @50psi,but need 2 get them ckeck & clean

fvance · « **Reply #9 on:** May 23, 2012, 09:06:17 AM »

Steve I am not sure all years fit, I think the ones I have are around '01-03. Are you going to be at Mojave Magnum. I probably already asked but CRS strikes again.

slatroni · « **Reply #10 on:** May 23, 2012, 08:38:38 PM »

fvance
CRS, HA! I have it too! I won't be at the Magnum, I can only make it once a year because of work and money, and money, LOL! I missed a set of 2000's on ebay today because of a PLC class I am taking at the JC. They were for a 04 but they looked like they would fit.
Good luck at the Magnum and have fun!

fvance · « **Reply #11 on:** May 23, 2012, 08:46:55 PM »

Thanks, maybe next year. I dont care much about the mile events, but I am excited about the 1.5 miles. With traction

slatroni · « **Reply #12 on:** May 23, 2012, 08:58:20 PM »

I can't wait to get back there! I got me one of them sticky tires for next year! I gotta say I am pretty sure I could do 200 in the 1.5 mile! Wish I could make it! And keep a eye on my buddy Pasodude for me!

fvance · « **Reply #13 on:** May 24, 2012, 09:29:28 AM »

I will do it. By the way, in your signature you say "I only want to do 200mph once"

That's what I said 5 years ago. Look where it led.

Oz Booster · « **Reply #14 on:** May 24, 2012, 05:35:59 PM »

Thats when you update your sig to 220,

fvance · « **Reply #15 on:** May 24, 2012, 07:38:06 PM »

We are so greedy always wanting more speed!!

Oz Booster · « **Reply #16 on:** May 24, 2012, 10:13:02 PM »

I just want a AA licence

fvance · « **Reply #17 on:** May 25, 2012, 07:07:09 AM »

me too

firemanjim · « **Reply #18 on:** May 26, 2012, 12:19:06 PM »

Ditto!!!!!!!

fvance · « **Reply #19 on:** May 26, 2012, 12:25:19 PM »

I dont get to use hair dryer.

firemanjim · « **Reply #20 on:** May 26, 2012, 10:28:16 PM »

Yabbutt--our bikes are half your size,Fred!

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Author Topic: Larger In Tank Fuel Pump? (Read 9048 times) Tweet