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[Schnobel]

Yep you guys are right... They where jerking my chain big joke on me.. The true numbers are 101hp and 113tq. They said if i wanted 110hp and 118tq swap to 259 cams and pistons.

So let's see, in three different posts you quoted your bike as having 110hp-130tq, second post the "true numbers" are 110hp-118tq and finally you state its 101hp-113tq.

Until you post an actual Dyno sheet I'm going to say you either don't know or your trying to impress folks with tall tales. Hmmm?

A stock 110 piped with a catless header and tuned will have in the low 90's for HP and a little over a 100lbs of tq. Anything more and I'm calling bull doo doo! 

[skeeter55]

So let's see, in three different posts you quoted your bike as having 110hp-130tq, second post the "true numbers" are 110hp-118tq and finally you state its 101hp-113tq.

Until you post an actual Dyno sheet I'm going to say you either don't know or your trying to impress folks with tall tales. Hmmm?

A stock 110 piped with a catless header and tuned will have in the low 90's for HP and a little over a 100lbs of tq. Anything more and I'm calling bull doo doo! 

Not here to impress anyone thats for sure.. I could care less what you all think its just the kind of BS ive been told.

[Para Bellum]

Not here to impress anyone thats for sure.. I could care less what you all think its just the kind of BS ive been told.

You said you had it on the dyno.  I would like to see that dyno sheet.

[skeeter55]

You said you had it on the dyno.  I would like to see that dyno sheet.

I will post the dyno sheet as soon as I get it. Dyno tech was out for a few days and he claimed the printer was out of ink. I just bought the bike a few months ago and was told that it was all stock except for the thunder header and screaming eagle heavy breather and a fuel pack. So why did I have it dyno because it was hard to start when warm turns out it was a fuse for the front compression release and then added the TTS tuner with a verbal of what the numbers we're. So I will call today and ask for the print out but man this things runs like killer.

[skeeter55]

You said you had it on the dyno.  I would like to see that dyno sheet.

ok here's what I got.

[Gandrtravis]

Looks like the dyno opp tryed to spike the torque or something weird is going on with 120 dead outa the hole than tapers right back to where it should be not sure what happened I don't no why they didn't over lay them also.

[skeeter55]

Looks like the dyno opp tryed to spike the torque or something weird is going on with 120 dead outa the hole than tapers right back to where it should be not sure what happened I don't no why they didn't over lay them also.

I have it on video as well but cant upload... He did have a couple of passes that over laid but this is the one i took..He also did have that at 101hp but it had a flat spot in it at 1/4 throttle.

[East Coast]

Doesn't a dyno run typically start at or around 2000 RPM's?

[Para Bellum]

Doesn't a dyno run typically start at or around 2000 RPM's?

It has on the 1000 or so dyno results I've seen.  Looks like this dyno operator had the engine running at roughly 2900 RPM steady throttle when he went to WOT--very strange.  Other factors that don't inspire confidence:  STD instead of SAE, so it reads higher than actual; no AFR shown, so no analysis possible; different scales for HP and TQ, which makes HP appear higher than it would otherwise; Humidity of 0%--where was this done, the middle of the Sahara desert?  Dyno run #1 (001)?

Skeeter, this dyno run was not performed in a standard format, making it kinda sketchy.  While it's true all dynos, operators, and engines vary, this one is beyond normal variance.  Maybe one of the professional tuning gurus will chime in to tell us what was going on.

[skeeter55]

It has on the 1000 or so dyno results I've seen.  Looks like this dyno operator had the engine running at roughly 2900 RPM steady throttle when he went to WOT--very strange.  Other factors that don't inspire confidence:  STD instead of SAE, so it reads higher than actual; no AFR shown, so no analysis possible; different scales for HP and TQ, which makes HP appear higher than it would otherwise; Humidity of 0%--where was this done, the middle of the Sahara desert?  Dyno run #1 (001)?

Skeeter, this dyno run was not performed in a standard format, making it kinda sketchy.  While it's true all dynos, operators, and engines vary, this one is beyond normal variance.  Maybe one of the professional tuning gurus will chime in to tell us what was going on.

Thanks for pointing out everything as im not a dyno guy... I do have about 4-videos of the dyno runs but this last run with the sheet is what he printed, maybe i could ask for the other passes to print as well.  Your right about holding the throttle steady and then he hits a button which i think puts the load on it and then he twist the throttle to wide open, I think the others were at lower rpm's. Also we are at sea level if that makes a difference but i like hearing everyone's input. Like i said i'm not trying to BS its just what i was told and what i video in person.

[grc]

Skeeter, the accepted industry standard is to use SAE correction factors, not STD.  So that would be my first recommendation, have him run the report using SAE, not STD.  As for starting the chart at 3k instead of 2k, that's not exactly a super big deal.  Lot's of folks who are overly concerned with "lugging" or twisting a crankshaft at low rpms might think starting the run with the engine running at least 2500 rpm was a good thing.  I don't necessarily agree, but for wide open throttle runs for people who only want to know about the peak numbers anyway, not worth arguing about.  There is much to be learned by studying the shape and rate of change of the curves, but that's not what most of these guys are into.

Most importantly, dyno numbers on the exact same bike will vary if you take it to several different dyno operators.  A chassis dynamometer as set up and used by most tuners is far from absolute, and it doesn't have to be.  Comparing numbers and bragging about having 3 more horsepower than your buddy may be fun for the uninformed, but trust me just because you have a chart that says so doesn't mean it is a fact.  Look at the typical chassis dyno as just a tool for the tuner, and not some absolute laboratory grade test equipment.

IMHO the most important settings and charts don't involve wide open throttle and bragging rights.  Do you  ride at WOT all the time, or do you perhaps ride 98% of the time at part throttle and low to medium engine speeds?

JMHO - Jerry

[HD Street Performance]

Looks like the dyno opp tryed to spike the torque or something weird is going on with 120 dead outa the hole than tapers right back to where it should be not sure what happened I don't no why they didn't over lay them also.

He probably snaped into the run, started the run on the way up after wacking the throttle earlier in the rpm range. The Thunderheader has a reputation for torque dipping in the 2-3K range and this method would be a way to mask that