September 27th, 2015, 11:55 AM | #1 |
ninjette.org member
Name: Sharkey
Location: Sf bay area
Join Date: Sep 2015 Motorcycle(s): 2010 ninja 250 Posts: 127
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Tyga full exhaust system?
Hey. Seen a full exhaust system for $300 by tyga. They claim a hp gain of 4 which for seems like a lot but not impossible. Would this system preform like a slip on on does the headers actually show and improvement
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September 27th, 2015, 12:13 PM | #2 |
Blind 250 Loving Whore
Name: Tom
Location: Chesapeake, VA
Join Date: May 2011 Motorcycle(s): 2008 250R, 02 FZ1, '20 Fat Bob 114 Posts: A lot.
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Have extra jets handy? You're gonna need to rejet as well. You will see a significant increase with a full system though.
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September 27th, 2015, 12:17 PM | #3 | |
Rev Limiter
Name: Jay
Location: WI
Join Date: Jul 2013 Motorcycle(s): '06 SV650n, '00 Derbi GPR, '64 CA77 Dream 305, '70 CL450 Scrambler, numerous dirt bikes Posts: A lot.
MOTM - Jun '18, Oct '16
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Quote:
That usually shifts the powerband upward at the expense of low-end and some mid-range, but ultimately it does produce more peak power. There are exceptions though. You'd have to study a dyno chart of the specific pipe and compare it to a stock dyno chart to see exactly what is happening where. |
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September 27th, 2015, 01:00 PM | #4 |
ninjette.org member
Name: Sharkey
Location: Sf bay area
Join Date: Sep 2015 Motorcycle(s): 2010 ninja 250 Posts: 127
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So when tyga showed the exhaust dyno and said they didn't reject is that bull...
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September 29th, 2015, 03:49 PM | #5 |
ninjette.org member
Name: Sharkey
Location: Sf bay area
Join Date: Sep 2015 Motorcycle(s): 2010 ninja 250 Posts: 127
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What happens if I don't rejet? Can I counter the need for jets if I left the snorkel in?
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October 4th, 2015, 02:57 AM | #6 | |
Wannabe Reborn
Name: Unregistered
Location: Cincy Ohio
Join Date: Mar 2009 Motorcycle(s): Blue 2008 Ninja 250 Posts: 302
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Quote:
DynoJet and FactoryPro make kits that have everything you need in them to rejet. I recommend the Factory Pro as it has a couple of jet sizes, new needles, and e-clips to properly shim the needle. Really not all that bad, plenty of DIY and resources here to refer to. But honestly, if you go full exhaust, you need to rejet. Otherwise the bike will not perform at its peak potential aka no 4hp gain. Maybe even a HP loss.
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" If you're here to show off and prove that your crotch rocket is faster than my Harley, you can leave now. " |
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October 4th, 2015, 06:14 AM | #7 |
in your machine
Name: Scott
Location: Summer Shade, Ky.
Join Date: Oct 2014 Motorcycle(s): 98 Ninja 250/F12 aka ZX-2R "SERENITY", 91 Ninja 500/A5 aka ZX-5R "Phoenix", 84 Honda GL1200A "SIREN" Posts: A lot.
Blog Entries: 25
MOTM - Jun '17, May '16, Mar '15
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The engine is just an air pump, more air in, the more air out, and vice versa.
With more air, your gonna need more fuel to maintain the air/fuel ratio at optimal performance 14.7 to 1. Jet changes can be a best guess if not using an exhaust gas analyzer, but without that your back to best guess. Fortunately the Ninjette has been around for awhile, and others have done modifications over the years. Which means someone has already done the hard work, and has the information your needing. A word of caution, the most common mistake is over compensating, way too rich. Making changes to the jetting is best done in small steps, and one at a time, jets, needles etc.....
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violente et ignorantia ZX-2R BLOG Twitter and Instagram = Ghostt_Scott I'm not here to change your mind, just to inform. |
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October 6th, 2015, 07:10 PM | #8 |
ninjette.org member
Name: Sharkey
Location: Sf bay area
Join Date: Sep 2015 Motorcycle(s): 2010 ninja 250 Posts: 127
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Yeah I'm fine with doing what someone else has done and it works. I think the main thing that has me on the wire about rejetting. Is that I have this bike and it's my first and just want to ride. Not even close plus we are moving next mont. so I might not have this thing ready until the end of the year
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