Honda 919 Powercommander maps

[thundertusk]

hey all
just built me a new exhaust put the m2 vale single side twobros can on the bike. was looking to see if any one has a map for a single side exhaust of any sort for the honda 919. i am gonna make a new intake inlet before i have a map built

[mcromo44]

Originally Posted by thundertusk

hey all
just built me a new exhaust put the m2 vale single side twobros can on the bike. was looking to see if any one has a map for a single side exhaust of any sort for the honda 919. i am gonna make a new intake inlet before i have a map built

A "new intake inlet" ?
You mean something to most likely nicely screw up the inlet ?

[Pvster]

Originally Posted by mcromo44

A "new intake inlet" ?
You mean something to most likely nicely screw up the inlet ?

mcromo is right here though. it'll take a lot of tinkering with a honda intake design to make it work as well as oem (if better is possible at all). one thing honda engineers know is their intake designs!!! i've dealt with tinkering enough honda intakes to conclude they know their shit in that area and sometimes oem is just best left alone performance wise. however, cosmetically it's an entirely different story! they sure like fugly intakes

[mcromo44]

Originally Posted by Pvster

mcromo is right here though. it'll take a lot of tinkering with a honda intake design to make it work as well as oem (if better is possible at all). one thing honda engineers know is their intake designs!!! i've dealt with tinkering enough honda intakes to conclude they know their shit in that area and sometimes oem is just best left alone performance wise. however, cosmetically it's an entirely different story! they sure like fugly intakes

I paid to have a series of dyno runs done to compare stock to BMC filter plus side cover on /off comparative runs.

The BMC nets a hair, the only justification for having one is it being a life long filter, and only if you plan to be a life long owner.

The side cover on /off barely showed anything, and once I looked at it closely, I realized that simple run to run variances of coolant and oil temps would explain it all. I defy anyone to come up with a revised inlet that still has a stock or stock dimensioned filter in place, that yields the same, let alone any more torque or power, anywhere on the curve.
Case closed.

[secondchance]

pretty much well known there designed to run on still air....any sort of ram air intake track could result in more on the very top end and could only be measured at the drag strip and will effect low mid power on the down side

[mcromo44]

Originally Posted by secondchance

pretty much well known there designed to run on still air....any sort of ram air intake track could result in more on the very top end and could only be measured at the drag strip and will effect low mid power on the down side

IF a properly designed, located and practical arrangement can be fabbed up, or course it would help.

[thundertusk]

Reason to try new intake inlet came to me looking at measurments is inlet on filter is 70mm inlet opening going to filter is only 60mm. Beside everyone nit picking my thoughts on intake, back to other part of post. Has anyone got a map for single side exhaust.

[MF1VE]

Yes, g00gl3it does. There are at least two maps in the Dropbox folder. PM g00gl3it to gain access.

[mcromo44]

Originally Posted by MF1VE

Yes, g00gl3it does. There are at least two maps in the Dropbox folder. PM g00gl3it to gain access.

M112-004 map is a standard PC issued map for a Two Bros 4:1
The Simpson map is a variation of that.
I think both are sea level derived maps.
g00gl3it has a good map derived at 5,000 ft or so.
All the above mentioned maps are in the Drop Box

g00gl3it is again thanked for setting up the Drop Box.

[secondchance]

Originally Posted by mcromo44

IF a properly designed, located and practical arrangement can be fabbed up, or course it would help.

like the vmax intake track gets longer the higher the rpm or faster you go.... then again its a 20.000 dollar machine set up at the factory...not a pop on part

remember watching dyno runs for several years....tuner would make dyno runs with filter off 8 to 10 runs make adjustments along the way...add the filter and only lose 1/2 to 1 hp.......besides we have the flapper valve

[thundertusk]

What's the deal with flapper valve does anyone run it or does that get pulled Fairly early

[mcromo44]

Originally Posted by thundertusk

What's the deal with flapper valve does anyone run it or does that get pulled Fairly early

It's there for intake noise reduction.

[g00gl3it]

Originally Posted by thundertusk

What's the deal with flapper valve does anyone run it or does that get pulled Fairly early

I explain it a bit here:

Honda 919 CB900F Pair Valve Removal and Flapper mod.avi - YouTube

While you're at it, do the pair removal .


Send me a PM with your email address and I can send you some maps to try, or if you want access to the Dropbox folder that we share (if you know what it is), I can do that as well.

[MF1VE]

Slight tangent - I installed the used serial port PCIII last night, and I ported the Pvster map to the .map format (I am at about 4000 feet ASL). REALLY enjoyed my ride into work this morning - the engine was SO smooth, and user-friendly - I was impressed with the difference.

If you want, I'll add a few notes to the map, and save in the Dropbox.

[g00gl3it]

Originally Posted by MF1VE

Slight tangent - I installed the used serial port PCIII last night, and I ported the Pvster map to the .map format (I am at about 4000 feet ASL). REALLY enjoyed my ride into work this morning - the engine was SO smooth, and user-friendly - I was impressed with the difference.

If you want, I'll add a few notes to the map, and save in the Dropbox.

Please do!

[Pvster]

Originally Posted by MF1VE

Slight tangent - I installed the used serial port PCIII last night, and I ported the Pvster map to the .map format (I am at about 4000 feet ASL). REALLY enjoyed my ride into work this morning - the engine was SO smooth, and user-friendly - I was impressed with the difference.

If you want, I'll add a few notes to the map, and save in the Dropbox.

hahah, if you liked that map..... you should try my new one i just got last weekend. dude was having issues with the 919 dumping fuel after the fan kicked on and while it's an overall decently nice tune, issues reared their ugly head in stop/go traffic when cold out and the fan kicked on. this new map had at least 18% of fuel taken out across the bottom half of the rpm range and the result removed most (if not all, still need to do more testing) of those issues and made significant improvements on my cold start issue. i'll continue playing with it and have mcromo go over it with me before i post it up.

[g00gl3it]

Originally Posted by Pvster

hahah, if you liked that map..... you should try my new one i just got last weekend. dude was having issues with the 919 dumping fuel after the fan kicked on and while it's an overall decently nice tune, issues reared their ugly head in stop/go traffic when cold out and the fan kicked on. this new map had at least 18% of fuel taken out across the bottom half of the rpm range and the result removed most (if not all, still need to do more testing) of those issues and made significant improvements on my cold start issue. i'll continue playing with it and have mcromo go over it with me before i post it up.

Pvster, throw your map in Dropbox, if you have access...

[secondchance]

more things change the more they stay the same...years back people would change there jets all the time looking for that perfect combo...now they play with there maps,,everyone thinking theres is the best.....in the end it dont matter if running worse or better,,it only matters what you think or think you think

[MF1VE]

Originally Posted by Pvster

hahah, if you liked that map..... you should try my new one i just got last weekend. dude was having issues with the 919 dumping fuel after the fan kicked on and while it's an overall decently nice tune, issues reared their ugly head in stop/go traffic when cold out and the fan kicked on. this new map had at least 18% of fuel taken out across the bottom half of the rpm range and the result removed most (if not all, still need to do more testing) of those issues and made significant improvements on my cold start issue. i'll continue playing with it and have mcromo go over it with me before i post it up.

Sounds good, I'll post up the converted old map, and try out the new one when you've got it uploaded.