Falclimber on the dyno (with link pipe mod)

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BenWah · #1 Post by **BenWah** » Thu Dec 15, 2011 10:57 am

I had the Falclimber on the dyno last week. See below for the dyno results. The setup is as follows:

Standard Falco motor
Standard throttle bodies
Renegade chip (-12 whatever that means)
Renegade air filter/baseplate

The first run (green) is how I've been running the bike this year with an early Mille system where the headers meet early in the system). The red line is with the modded link pipe which joins the rear header to the collector. The blue line is the modded link pipe with a custom fuelling map on the PCIII.

The link pipe fills in the mid quite nicely but really benefits from having a custom map to get it just right. Just over 5bhp was found in the midrange.

Peak power is 116bhp at the wheel (the correction factor is EC, which is similar to SAE for our American friends). In terms of DIN (which many operators use) the peak is 120bhp at the wheel.

D-Rider · #2 Post by **D-Rider** » Thu Dec 15, 2011 11:17 am

All looks good Ben.

I'm interested to understand what's going on down the bottom end below 5K.
The Green Line (link pipe but not re-mapped) seems a lot stronger. The question is why has the "preferred mapping" of the blue line sacrificed this in favour of the green line in this area?
Is it that the bike is more smooth on pick-up or something? If not, then why not take the values of the green map below 5k ?

I spend a lot of my commute pootling along in 5th and 6th at 2.5k to 3.5K rpm and smoothness in this area plus the ability to pull these low revs is quite important to me.
That said, I appreciate the Falclimber is probably ridden a little differently to my commute ......

BenWah · #3 Post by **BenWah** » Thu Dec 15, 2011 2:04 pm

Don't take that as anything - on those particular runs (to show mid and high differences) the dyno operator didn't start the pull at exactly the same revs. The fuelling at those revs has been mapped, but I've not got the charts/data to go with it.

The link pipe with no map isn't stronger at low rpm - it's just a function of how this run was done.

BW

Samray · #4 Post by **Samray** » Thu Dec 15, 2011 2:14 pm

In that case ........

Aladinsaneuk · #5 Post by **Aladinsaneuk** » Thu Dec 15, 2011 4:14 pm

very interesting and confirms other dyno's

i guess the next thing ben will be 54mm throttle bodies?

oh - i take it that is also a standard mille end can?

#6 Post by **mangocrazy** » Thu Dec 15, 2011 7:06 pm

That's very interesting. I've been watching this 'Mille system with link pipe' thing for a while now and early on some frankly incredible claims were being made for midrange power increases - around 12 bhp I seem to recall. This is much more what I'd expect to see; a gain of around 3 bhp attributable to the pipe, plus another 3 bhp found when the fuelling was optimised with a PCIII.

Certainly worth it; I wouldn't sniff at an extra 6 bhp in the midrange.

D-Rider · #7 Post by **D-Rider** » Thu Dec 15, 2011 8:22 pm

Graham - by the sound of it, this isn't the normal mod.

The "normal" mod is done to the newer Mille mid section and comprises 2 link pipes.

It sounds as though this is a mod that has been done to the older Mille mid section and is a single link between the rear header and the section where the pipes have already joined (this is the link that is sometimes omitted from the "normal" mod as it is said to have a lesser effect on that system.

Comparing increases with the "normal" mod is not so relevant as the unmodified sections (from which the gains are shown) are different and the "normal" mod has 2 links whereas I think Ben's has just the one.

#8 Post by **mangocrazy** » Thu Dec 15, 2011 8:31 pm

OK Andy; it's easy to get confused, I guess, especially when it's not a configuration I'm personally familiar with. But with the 2 link pipe mod, I can only assume that the gains are from a very low base (i.e. it must have been really crap before) to register double-digit bhp gains in the midrange...

longracinginc · #9 Post by **longracinginc** » Tue May 01, 2012 1:44 am

Was that From your hill climb bike, with the evo airbox? I got better numbers on friday night with my new blue flame carbons. although mine had a big dip between 4k and 5k. it was a 5th gear pull. Gearing was 15 and 41. i was really inpressed with the 76.5 torque # and 122 hp. I want to learn to fine tune the ecu trim pots. i know that when I got that chip from Gabro, there was a huge increase according to the Butt Dyno testing. lol I would really like to find a way to get 145 hp with out a bigbore.

blinkey501 · #10 Post by **blinkey501** » Tue May 01, 2012 3:46 am

longracinginc wrote:Was that From your hill climb bike, with the evo airbox? I got better numbers on friday night with my new blue flame carbons. although mine had a big dip between 4k and 5k. it was a 5th gear pull. Gearing was 15 and 41. i was really inpressed with the 76.5 torque # and 122 hp. I want to learn to fine tune the ecu trim pots. i know that when I got that chip from Gabro, there was a huge increase according to the Butt Dyno testing. lol I would really like to find a way to get 145 hp with out a bigbore.

When i took my falco for a dyno at swinton motorcycles, I had a lengthy chat with the guy who did the run for me..
To get even close to 140 bhp you need a mille engine with a big valve pair of heads.
He worked on a mille that did the V Twin challenge and that is what was accomplished.
He did'nt go into to much detail but basically the motor had been stripped and tuned on the bench.
Weather or not gas flowing had taken place i could'nt tell you.
He said that he had done everything that could be done to get that amount of power with the motor still being reliable...
145 bhp sounds out of reach to me, Well and stay reliable that is

D-Rider · #11 Post by **D-Rider** » Tue May 01, 2012 8:05 am

longracinginc wrote:Was that From your hill climb bike, with the evo airbox? I got better numbers on friday night with my new blue flame carbons. although mine had a big dip between 4k and 5k. it was a 5th gear pull. Gearing was 15 and 41. i was really inpressed with the 76.5 torque # and 122 hp. I want to learn to fine tune the ecu trim pots. i know that when I got that chip from Gabro, there was a huge increase according to the Butt Dyno testing. lol I would really like to find a way to get 145 hp with out a bigbore.

This really strikes me that your dyno operator has loaded in some pretty "helpful" compensations. There is no way that a relatively standard Falco will really come close to those figures.

BenWah · #12 Post by **BenWah** » Tue May 01, 2012 10:16 am

Gotta agree with Andy, 122bhp from a Falco motor is out of reach without lots of tinkering. Mine makes 117bhp at the wheel with Rene airkit, Rene chip, early Mille pipe with single link mod and a Power Commander. It's spent many hours on the dyno getting the fuelling just right too. It's the strongest Falco I've ridden - and I've ridden a fair few.

You won't reach 145bhp without big valve heads, high comp pistons or going down the big bore route.

Actually, thinking about it... was that 122 crank bhp? That'd make much more sense.

BW

longracinginc · #13 Post by **longracinginc** » Thu May 03, 2012 10:44 pm

That was at the wheel. we did 8 runs. the first few were 117, then 119, and so on it got a little better with each run. the sheet says it was 67 degrees f, and our elevation is 1130 ft. Oh and the torque # is wrong, it was 74.6 ft lbs. I typed that one wrong. i would post it if I could, the dyno pc is a dinosaur, no internet, i can't even put it on a memory stick, because it has no usb port. we printed run #6, and that was barely legable, broken lines and faded pink. sorry fella's. it is what it is. it is a very strong running bike. and I plan on trying to get everything i can out of it within reason. I don't actually think I can tune 145 out of it... but I wish I could.

longracinginc · #14 Post by **longracinginc** » Fri May 04, 2012 12:16 am

By the way, I was running 102 octane fuel. I run a shop, and I sell vp race fuels. That may have had a little influence on my numbers

longracinginc · #15 Post by **longracinginc** » Fri May 04, 2012 6:17 am

the pizza delivery boy was running a 1:1 mix of VP C51 and 91 pump gas with lucas ethanol additive.