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Author Topic: .043 jet = what shot  (Read 20164 times)

Offline KC Busa

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.043 jet = what shot
« on: April 26, 2008, 05:05:54 PM »
I have had my bike on the dyno to verify I am running a safe air/fuel with all the new parts.  efir-13, fast fi, and .036 jet

All that netted me 200 RWHP so I took a carburetor jet drill bit and honed the jet out to a .038.  Netted me some more with air/fuel still at 10.0:1.  So after getting up to a .043 jetting and making 220 RWHP / 140 RWTQ blazing an ultra soft shinko I decided that was enough power to make me happy.  Air/fuel still 10.0:1 until the upper RPMs where it curled up to 11.0:1.  I am just curious to what a .043 jet is even equivelant to.  With some better clutch springs I will maybe increase the jetting to a .045.  But for now it runs pretty darn strong.  All the dyno pulls were at 950 psi bottle pressure.  I have since turned it down using a bottle warmer and running at 900 psi.  Havent lost any races with this setup so I have not been urged to increase anything. 

Thanks!
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Sam
2003 Suzuki Hayabusa
240 RWHP/150 RWTQ - 80 dry shot

Offline sportbikeryder

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Re: .043 jet = what shot
« Reply #1 on: April 26, 2008, 05:36:44 PM »
on your bike, 20 more than an .036.

How much HP does your bike make on motor?

If you made 200 with a 36, you are probably only making about 155 on motor.

A 42 jet is usually good for about 65 HP. If you use a spray bar, you usually get another 5 HP or so.

John
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Any day on a motorcycle like this that ends just needing parts and labor is a good day.
4.82, 158.67mph 1/8th mile 7.350, 200.32mph 1/4 mile Riding

4.392, 176.79mph 1/8th mile  6.610, 228.15mph 1/4 mile Tuning

Offline KC Busa

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Re: .043 jet = what shot
« Reply #2 on: April 26, 2008, 05:48:09 PM »
Quote from: sportbikeryder on April 26, 2008, 05:36:44 PM
on your bike, 20 more than an .036.

How much HP does your bike make on motor?

If you made 200 with a 36, you are probably only making about 155 on motor.

A 42 jet is usually good for about 65 HP. If you use a spray bar, you usually get another 5 HP or so.

John


Oh I know this...  I am just trying to see what a .043 jet was equivelant to since a .028=30 hp & .036=60 hp.  My bike makes 165 RWHP so I understand it is only a 55 hp gain for me.  This .043 jet size is just all curiousity to me on what hp it is if I wasnt drenching the engine with fuel and pulling so much timing. 
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Sam
2003 Suzuki Hayabusa
240 RWHP/150 RWTQ - 80 dry shot

Offline sportbikeryder

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Re: .043 jet = what shot
« Reply #3 on: April 26, 2008, 07:35:21 PM »
Rough numbers:
28  30HP
30  34HP
32  38HP
34  40HP
36  45HP
38  50HP
40  55HP
42  65HP


Of you drill them, you will usually get slightly less as the orifice is sharper adn not a radius on the lead in. A spray bar will allow the nitrous to atomize a little better and make slightly more HP.
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Any day on a motorcycle like this that ends just needing parts and labor is a good day.
4.82, 158.67mph 1/8th mile 7.350, 200.32mph 1/4 mile Riding

4.392, 176.79mph 1/8th mile  6.610, 228.15mph 1/4 mile Tuning

Offline KC Busa

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Re: .043 jet = what shot
« Reply #4 on: April 26, 2008, 08:42:15 PM »
Quote from: sportbikeryder on April 26, 2008, 07:35:21 PM
Rough numbers:
28  30HP
30  34HP
32  38HP
34  40HP
36  45HP
38  50HP
40  55HP
42  65HP


Of you drill them, you will usually get slightly less as the orifice is sharper adn not a radius on the lead in. A spray bar will allow the nitrous to atomize a little better and make slightly more HP.

Thanks.  That makes sense.  I have considered the spray bar, just haven't convinced myself yet since the bike is running so well. 
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Sam
2003 Suzuki Hayabusa
240 RWHP/150 RWTQ - 80 dry shot

Offline sportbikeryder

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Re: .043 jet = what shot
« Reply #5 on: April 27, 2008, 11:28:57 AM »
Contact Chuck wilburn for a spray bar...maybe he'll throw in a new jet or two for ya.
John
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Any day on a motorcycle like this that ends just needing parts and labor is a good day.
4.82, 158.67mph 1/8th mile 7.350, 200.32mph 1/4 mile Riding

4.392, 176.79mph 1/8th mile  6.610, 228.15mph 1/4 mile Tuning

Offline KC Busa

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Re: .043 jet = what shot
« Reply #6 on: April 27, 2008, 07:14:14 PM »
Quote from: sportbikeryder on April 27, 2008, 11:28:57 AM
Contact Chuck wilburn for a spray bar...maybe he'll throw in a new jet or two for ya.
John

I may contact him.  He is who I purchased my nitrous kit from.  Plus its great how he is so easy to get in contact with. 
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Sam
2003 Suzuki Hayabusa
240 RWHP/150 RWTQ - 80 dry shot

Offline Doogie

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Re: .043 jet = what shot
« Reply #7 on: April 28, 2008, 09:16:50 PM »
Schnitz racing dyno with an .040 jet.. Air/fuel 14.1 SAFE Map..




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Offline SPARKY1397R

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Re: .043 jet = what shot
« Reply #8 on: April 28, 2008, 09:47:33 PM »
don't think your a/f is right doogs
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Offline Doogie

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Re: .043 jet = what shot
« Reply #9 on: April 28, 2008, 09:59:00 PM »
Quote from: sparky1397r on April 28, 2008, 09:47:33 PM
don't think your a/f is right doogs


Please
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Offline SPARKY1397R

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Re: .043 jet = what shot
« Reply #10 on: April 29, 2008, 11:45:29 AM »
i am saying it doesnt look like 14.1 on the graph unless i went retarded looking at it(entirely possible)  :D
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Offline Doogie

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Re: .043 jet = what shot
« Reply #11 on: April 29, 2008, 12:50:19 PM »
Thats just what Ryan told me. Maybe it was 12 hell I don't know. it runs perfect so I don't care :P
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Offline SPARKY1397R

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Re: .043 jet = what shot
« Reply #12 on: April 29, 2008, 02:05:55 PM »
 :D
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Offline NOMRLZ

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Re: .043 jet = what shot
« Reply #13 on: May 19, 2008, 08:09:28 AM »
a 42 jet is good for 60 and a 44 is good for 65 (actually 64 on my bike)
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Offline NOMRLZ

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Re: .043 jet = what shot
« Reply #14 on: May 23, 2008, 01:27:01 PM »
and if it helps ya any.  just took the bottle off from last friday.  .o42 jet spraying @ 7.5 seconds per run.  full 6lbs15oz's pulled off at 4lbs 5.9oz's.  first run was 152.69, 3 more at 151.5 and last was 153.6 (spun bad).  no syphon, mounted upside down in arm.
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Offline WAR MACHINE 1300

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Re: .043 jet = what shot
« Reply #15 on: May 23, 2008, 07:03:37 PM »
Quote from: Doogie on April 29, 2008, 12:50:19 PM
Thats just what Ryan told me. Maybe it was 12 hell I don't know. it runs perfect so I don't care :P

DOOGIE   IT  LOOKS  LIKE  ITS 13 OR  A  HAIR  OVER   TO  ME  A/F  LOOKS  JUST LIKE MINE   WAS  THAT WITH AN INSTANT RICH BOX  OR  PC TUNED  ?
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Offline Doogie

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Re: .043 jet = what shot
« Reply #16 on: May 23, 2008, 10:19:26 PM »
Quote from: WAR MACHINE 1300 on May 23, 2008, 07:03:37 PM
Quote from: Doogie on April 29, 2008, 12:50:19 PM
Thats just what Ryan told me. Maybe it was 12 hell I don't know. it runs perfect so I don't care :P

DOOGIE   IT  LOOKS  LIKE  ITS 13 OR  A  HAIR  OVER   TO  ME  A/F  LOOKS  JUST LIKE MINE   WAS  THAT WITH AN INSTANT RICH BOX  OR  PC TUNED  ?

Ryan Scnintz PC Tune  :thumb:
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Offline WAR MACHINE 1300

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Re: .043 jet = what shot
« Reply #17 on: May 24, 2008, 06:38:04 AM »
   HE SET  MINE  THE  SAME  WAY   SMALLER  JET OF COURES  :thumb:
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Offline cdnbusa

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Re: .043 jet = what shot
« Reply #18 on: May 29, 2008, 09:49:14 AM »
Quote from: SMYT on May 23, 2008, 01:27:01 PM
and if it helps ya any.  just took the bottle off from last friday.  .o42 jet spraying @ 7.5 seconds per run.  full 6lbs15oz's pulled off at 4lbs 5.9oz's.  first run was 152.69, 3 more at 151.5 and last was 153.6 (spun bad).  no syphon, mounted upside down in arm.

So 5 passes with a .042 jet and you used 2lbs 9.1oz's of nitrous
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Thanks to canadianmike and Racer's Choice for all your help...

Offline NOMRLZ

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Re: .043 jet = what shot
« Reply #19 on: May 29, 2008, 09:56:36 PM »
uh huh.  i'm gonna log my usage and how mph drops off more this year.  kind of a prehistoric datalogger   :lol:
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Offline cdnbusa

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Re: .043 jet = what shot
« Reply #20 on: May 30, 2008, 08:23:57 AM »
Quote from: SMYT on May 29, 2008, 09:56:36 PM
uh huh.  i'm gonna log my usage and how mph drops off more this year.  kind of a prehistoric datalogger   :lol:

I have one of those  :thumb:

(was called a chart at one time but doesn't sound as good)
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Offline Indy03Busa

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Re: .043 jet = what shot
« Reply #21 on: June 04, 2008, 01:50:13 AM »
what would a .078 jet get on hp
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Offline Doogie

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Re: .043 jet = what shot
« Reply #22 on: June 05, 2008, 09:14:24 PM »
Quote from: Indy03Busa on June 04, 2008, 01:50:13 AM
what would a .078 jet get on hp

Detonation with out motor work
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Offline WAR MACHINE 1300

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Re: .043 jet = what shot
« Reply #23 on: June 08, 2008, 06:47:54 PM »
ANYONE KNOW IF WHEN  PC3USB AND HUB  IS  CONNECTED  TO LAPTOP  AND SWITCH  IS  CHANGED FROM  MAP 1  TO MAP 2  ARE  THE NUMBERS IN THE  MAP SUPPOSED TO CHANGE ON THE SCREEN  OR  NOT   
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Offline Doogie

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Re: .043 jet = what shot
« Reply #24 on: June 08, 2008, 09:19:28 PM »
Quote from: WAR MACHINE 1300 on June 08, 2008, 06:47:54 PM
ANYONE KNOW IF WHEN  PC3USB AND HUB  IS  CONNECTED  TO LAPTOP  AND SWITCH  IS  CHANGED FROM  MAP 1  TO MAP 2  ARE  THE NUMBERS IN THE  MAP SUPPOSED TO CHANGE ON THE SCREEN  OR  NOT   

No clue Bud  :?:

Call or e-mail dyno jet I sure they can tell you.
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