Inlet upgrade?

TonyA said:
Yes everything is running good... I could leave it all like this permanently and use the motorcycle normally long trips and rain as well .
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The only upgrade I was looking at doing at the moment was to mechanically join the two aluminium link tubes together and anchor them to the splash tray above as I am a bit concerned about the K&N filters vibrating on the silicon pipes. And I still fancy making a flat oil catch tank which serves as a shield between the regulator and the hugger. I am quite pleased with my link pipe which has the IAC intake filter and the catch breather filter mounted together with a blanking plug between them.
 
iwilson said:
How did you get on Tony? @Clive how is the injector project working for you?
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If I was looking for a more uninspiring result , I could not do any better ! After months of waiting to get to the DynoJet shop here is what I have :

Inlet upgrade?


The upper graph is from 5 or more years ago from the MCC Chicago dyno . The lower is my last run and tune at Redline Dyno . He said I had a vacuum leak at the heat insulator which was affecting the mixture ,. So we fixed that and finished the tuning. So not much from my starting point just 1 HP at top . Remembering I went in with Delta 400 race cans map and K&N clamp on filters as a starting point. If I was just looking at the graph and nothing else I wouldn't do it , but after having done this and experienced the result my view is more encouraging. The sound and pull at full chat is to live for , I just can't prove it with these graphs.

Inlet upgrade?
 
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Tony,

Are these rear wheel power numbers?
Did the Dyno shop provide AFM at RPM data?
 
BritTwit said:
Tony,

Are these rear wheel power numbers?
Did the Dyno shop provide AFM at RPM data?
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Yes Rear Wheel on his Dyno Jet dyno . I am supposed to get an email with the rest. I saw the AFR at various RPMs ant throttle positions and they look good. But I don't have that to show you.
 
TonyA said:
If I was looking for a more uninspiring result , I could not do any better ! After months of waiting to get to the DynoJet shop here is what I have :

Inlet upgrade?


The upper graph is from 5 or more years ago from the MCC Chicago dyno . The lower is my last run and tune at Redline Dyno . He said I had a vacuum leak at the heat insulator which was affecting the mixture ,. So we fixed that and finished the tuning. So not much from my starting point just 1 HP at top . Remembering I went in with Delta 400 race cans map and K&N clamp on filters as a starting point. If I was just looking at the graph and nothing else I wouldn't do it , but after having done this and experienced the result my view is more encouraging. The sound and pull at full chat is to live for , I just can't prove it with these graphs.

Inlet upgrade?
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The first pulls are so inaccurate. Why did they do a 3rd gear and 4th gear pulls. The test were 19 days apart. With the temps and humidity being totally different.

Do you know if the dyno operator is on or off the bike? If he’s seated on the bike during dyno pulls, his body weight will also effect the numbers.
 
Voodooo said:
The first pulls are so inaccurate. Why did they do a 3rd gear and 4th gear pulls. The test were 19 days apart. With the temps and humidity being totally different.

Do you know if the dyno operator is on or off the bike? If he’s seated on the bike during dyno pulls, his body weight will also effect the numbers.
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I don't know , I wasn't there for the pulls. The bike was strapped down , that I know.
 
Tony, it’s basically impossible to try and evaluate the effect of tuning mods by using a different dyno before and after. You could easily have made good gains that have been consumed by the differences between the two dynos.
 
Voodooo said:
The first pulls are so inaccurate. Why did they do a 3rd gear and 4th gear pulls. The test were 19 days apart. With the temps and humidity being totally different.
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I agree, a wide variation in atmospheric conditions between the two runs.
Lets see what the O2 numbers look like.
 
Hello yes I understand. Clive had more real world results with his efforts. Done before and after same dyno tuner so his data is good.
 
TonyA said:
Hello yes I understand. Clive had more real world results with his efforts. Done before and after same dyno tuner so his data is good.
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My seat of the pants is telling my bike is faster than it’s ever been. I just can’t prove it at this time with this dyno run. I am glad I did it and it will probably stay this way now.
 
My technical knowledge is nowhere near yours Tony, but I have always had a good feeling for when my bikes are running really well and when they’re not. 40 years of riding will do that for you. No doubt you are the same.

I’d be placing my trust in ‘the seat of my pants’! Nice to have supporting numbers however, if not confident in their veracity then they are of limited value. Nobody knows your bike better, if it feels stronger and faster then there’s little doubt that it is.
 
Hope you’re right Tony / Stephen. But I also know from experience that the arse dyno can be a big fat liar !!
 
Fast Eddie said:
Hope you’re right Tony / Stephen. But I also know from experience that the arse dyno can be a big fat liar !!
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Clive has good data . This mod produced 5HP in the middle and 3HP on top of the rev range on his bike. If he adds a DynoJet PCV it could be even more .
 
TonyA said:
Clive has good data . This mod produced 5HP in the middle and 3HP on top of the rev range on his bike. If he adds a DynoJet PCV it could be even more .
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Cool. Those numbers are worth having !

It’ll be the 5 in the middle you can feel Tony.
 
The bike certainly felt to be pulling stronger in the midrange and I was pleased to find that the dyno results matched what I was feeling.

I was a very good boy and even told my insurance company about the mods! FYI I was interested to hear, after getting quoted for an additional bike purchase, that it seems generally accepted with real bike insurers that they are not worried about non-original 'end cans'.....
 
Clive said:
The bike certainly felt to be pulling stronger in the midrange and I was pleased to find that the dyno results matched what I was feeling.

I was a very good boy and even told my insurance company about the mods! FYI I was interested to hear, after getting quoted for an additional bike purchase, that it seems generally accepted with real bike insurers that they are not worried about non-original 'end cans'.....
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Your dyno runs were more scientific . Not like mine.
 
I now have two maps for the DynoJet PCV setup. Along with the two maps for the Delta400 ECU supplied by SCS .
 
Tried a run with the filter cartridge removed, impressed! Better starting, sooner settled, revs with ease and smoothly up to the red. Working on a filter/cover for the now 90+ dia plenum inlet and job done!
 
Al's#5 said:
Tried a run with the filter cartridge removed, impressed! Better starting, sooner settled, revs with ease and smoothly up to the red. Working on a filter/cover for the now 90+ dia plenum inlet and job done!
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Any chance you can post some pictures?
 
The air intake gets its air from under the seat.

It’s a pretty tight fitting seat, not much in the way of air flow under there.

I’m convinced that’s a bottleneck in the system and most likely a factor in why Clive’s and Tony’s mod works well.
 
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