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AndrewT

Member
Joined
Nov 23, 2024
Messages
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Location
Sydney Australia
Hi,
Do we have a library of Ignitech ignition maps for different bike set ups? I have searched all documents a few ways and have not found much info.
I have a 96 Gen 1 and it has a few modifications as follows to engine, exhausts and intake.
Ported heads
Mild cams - a bit more duration than standard.
11.5:1 compression
K&N filter with Y off.
Carbs tuned with AF ratio gauge.
Standard exhaust with front header connecting tube removed and changes to the internal baffles in the mufflers.
Ignitech race 3 ignition.
A bunch of telemetry on board going to a data recorder.
I'm looking at boost up to 1 bar.
Looking for Ignitech ignition maps for a turbo or supercharged bike set up. Or any other maps that have been improved on a Dyno.
Additionally, as there are quite a few bikes in this group with Ignitech ignitions it would be good to create a tuning library?
Thank
AndrewT
 
Modified original black exhaust. Front header cross pipe removed. Smooths out the torque and power curve No dips as negative exhaust pulses at these T joints are eliminated.
Muffler modified the long perforated tubes to muffler outlets were removed and a short larger exhaust outlet added that are bell mouthed on the inside to reduce restriction.
Reduces back pressure and lowers the sound. Not much louder and looks stock.
 
Front header cross pipe removed. Smooths out the torque and power curve No dips as negative exhaust pulses at these T joints are eliminated.
Muffler modified the long perforated tubes to muffler outlets were removed and a short larger exhaust outlet added that are bell mouthed on the inside to reduce restriction.
Reduces back pressure and lowers the sound. Not much louder and looks stock.
Do you have dyno figures for before and after the exhaust mods? Interested in you comments re the balance pie - have a read of this.

When you say 'reduced back pressure' I'm assuming you mean altered the reflected wave from the end of the exhaust?
As you will have most likely changed the harmonics of the exhaust by your changes how do you know when the positive and negative waves will arrive at the exhaust valve and a what r.p.m. this will occur?
Just curious.
 
Andrew , I’m no pro in fact I’m not even sure I’d consider myself an amateur, but I do know that our front header pipes are double walled with the inner pipe being much smaller diameter. This restriction pretty much negates any horsepower gains from airbox and carb modifications that require a larger diameter header to realize. I’d be curious to know what gains you’ve achieved with your not insignificant engine modifications with the restrictive header pipe. Also correct me if I’m wrong but it sounds like you’ve eliminated the crossover which it turn eliminates the scavenging effect greatly reducing horsepower as has been proven with the cobra exhaust. Lastly you mention a 1 bar boost but I don’t see any reference to a turbo or supercharger setup.
 

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