Post Dyno Charts Here.....

[Tom_E]

Originally Posted by buttons

Id love to be wrong but Ill guess your best time will be 13.7@95mph. Im just going by what ive seen sportser 1200's and VTX1300's do they make around 60whp?

Here we go! Good fun! I'll take 14.0 @ 92. ET is very dependent on how well you get the bike to launch. Trap speed is a pretty good indication of horsepower even on runs with a "lousy" launch provided you stay on it and make good shifts. Results will be interesting. When you get the time slips the BS stops.

[NSeeSee]

I think 13-14 seconds is realistic. I did some more looking at some timeslips from other runs, and it should fall in that range.

Tom E... I don't think we've seen any BS so far, kind of nice really. I am just excited to try running a 1/4 mile on a track, and pleased with the gains I've seen from intake/exhaust mods.

Anyway, I'll do my best to be below 14... even 13.9 would be betther than 14!

[Tom_E]

Originally Posted by NSeeSee

Tom E... I don't think we've seen any BS so far,

Didn't mean to infer there was. Just an old expression. Sorry I'm not close enough to go too.

For reference, my "bolt ons" 1500 MS (pipes, intake, PCIII) went 13.0 @ 100 mph.

[Iamjustifyd]

I bought a 2004 Ninja500 with a Muzzy and Dynojet....I know it was to rejet to carbs but how does the dyno effect the performance compared to stock? It runs fine...just curious.
Thanks

[NSeeSee]

Originally Posted by Tom_E

Sorry I'm not close enough to go too.

.

Same here my friend.

I will post my ET as soon as I get to run. Hoping for end of the month.

In the mean time can I get in on the pool action... I'll take 13.4 at 97 mph (I can dream )

[NSeeSee]

Originally Posted by Iamjustifyd

I bought a 2004 Ninja500 with a Muzzy and Dynojet....I know it was to rejet to carbs but how does the dyno effect the performance compared to stock? It runs fine...just curious.
Thanks

The dyno itself does not do anything to the bike. A dynomometer (dyno) is a torque measuring device (can also be used to measure Hp).
The dyno would have been used to set up the carb jetting to compensate for the pipe change. Rejetting a carb is a similar exercise to mapping a FI bike with a powercommander or other fuel controller.

The Carb has several jets, that blow fuel into the stream of intake air... pilot, needle (or slide) jets, and the main jet. They work in sequence from idle to full throttle. The Dyno tuner will try different jet sizes/needle settings to get an ideal A/F ratio and max power. The dyno is the tool he uses to try each setting and compare the results.

If it runs fine... he probably did a good job

[06Streaker]

Here are the before and after dyno runs. The "after" run still needs some tweaking, we were pressed for time, the engine was running hot, and our torque numbers were getting worse with the heat. Enough excuses, dyno runs attached:
Before (Forcewinder Intake, PCIII, and Muzzy Megaphone Exhaust):


After (Muzzy Big Bore Kit, Thunder Cams, Thunder Ported Intake, Heads ported by me, still some tuning left to do):

[Scorpius01]

Originally Posted by NSeeSee

Same here my friend.

I will post my ET as soon as I get to run. Hoping for end of the month.

In the mean time can I get in on the pool action... I'll take 13.4 at 97 mph (I can dream )

i am curious to see if you made it to the track and what times you got.

[NSeeSee]

Hi Scorpius01,

Unfortunately, I too, am still curious . I have been rained out of two weekends. In Ontario (Canada) this summer, we have set an all time rainfall record, and there is still a month of summer to go... it's been like living in a monsoon!

I am now aiming for late August/Early September. I will keep you posted. I am going to run a 1/4 this summer if I have to do it under water!

Cheers

[Biker Dad]

Originally Posted by Alf

Had my 900 dynoed last weekend sorry no scanner to post the chart. Here are the corrected run results Max. Power 54.43 HP Max torque 57.23 ft-lbs. They did four runs all were very close to the above. My mods Cobra speedster longs, Thunder teardrop air kit and Cobra fi2000r. Air/Fuel was slightly rich till 3500 RPM then bang on all the way to the rev limiter. It was not out enough to worry about tweaking the fi2000r settings. Oh forgot my local dealer was giving out $25,00 off coupons in the end the dyno cost me a whopping $35.00.

Alf, What settings are you running your FI2000r at?

[Biker Dad]

Originally Posted by NSeeSee

Hi Everybody,

Well, at long last I got my Roadhouse 2 into 1's. A company called Motoworks took over Roadhouse over the winter, and have done an awsome job of getting back into production. A super guy named Dusty will take great care of you if you call them. I recommend you do, great sound and awsome power gains.

Anyway, I am glad I waited. I got my bike dynoed today, and the results leave me smiling:

Corrected to STP (SAE 1.02 on this run)
Note: AF colours are backwards to hp/Torque ...oops.
Also, the first run was with a map I downloaded from Powercommanders web site for HK sideburners. I got me to the dyno, but was out of wak for AF.
Custom Map Results:
60.88 hp
60.68 lb-ft with > 50 lb-ft from about 2250 to 6300 rpm

Comparing (and I know we only do this with a grain or two of salt) stock dyno numbers I've seen in the range of 43-45 hp. that would be over 35%- 40 % gain in hp!!! (smiling again).

Man, its like a different motor. Pulls like crazy right to the rev limiter, and have to actually watch how much throttle I use exiting a corner... will break the back tire loose pretty quickly now.

Just for reference I have a Barons BAK, PC3 USB, and Roadhouse Classic 2 into 1 pipes with standard baffle.

I will post a pic of the bike soon.

Here is the dyno chart. By the way, anyone needs a good dyno man, call Andrew at ATR. He is an engineer/Bike motor builder with a full Dynojet-Tuning link set up, and really knows his stuff. ( I am also an engineer, and was really pleased to find he knows a lot! about motors.)

Cheers all.

How loud are your Roadhouse 2in1 pipes? I have heard them on YOUTUBE and they sound awesome (but then these videos can be deceiving) and I know they give the best performance increase...I'm looking for pipes that are more than stock but not so loud they rattle my teeth at 80 or wake the neighborhood.. Cobras, Hines, etc are just to loud..

[NSeeSee]

Hi Biker Dad,

Yeah, they sound awsome, and they are certianly louder than stock, but they have this awsome characteristic of being fairly tame on idle or steady throttle position, but they have an excellent crack to them when you get on the throttle. I think it is almost a perfect compromise. Also, they offer three baffles, quiet, standard, and performance. They swear that these do not alter performance, only volume. I have the standard, and one of my neighbours asked why my new pipes were so quite while is was idling in my drive. I blipped the throttle, and his eye went wide. I think he's going to get a set too

Good luck and tell Dusty at roadhouse that Chris in Canada sent you!

Cheers

[westval]

Originally Posted by Easyrider32

Umm the specifications for stock Vulcan are 141 lb-ft @ 3,000 rpm Unless thats at the crank.

What did you get stock before the mods?

Listed TQ is @ crank. Also remember STP.

[mrmegadeth]

I am attaching a calculator I built for the VN 900 to show how changing a wheel or to the Scootworks' pulley will affect the speed-o error and the performance of the bike.

[mrmegadeth]

I updated the Calculator I posted above, ^^. I think it is a bit easier to use now.

The new sheet can be found at http://www.kawasakimotorcycle.org/fo...alculator.html

[wolfrider2009]

i have a vn900 2007 classic, i am seeking the right setting to the cobra unit to get ride of the open throttle bog down on it. here is the set up i have currently

cobra dragster pipes

thunder tornado air kit

cobra FI200R direct plug in
settings now 5-3-1

i had this unit set to 8-8-3 and still had open throttle issues on any settings i used.

how lean do these bikes run or are they semi rich?

My stock AFK worked great at stock settings on the cobra, never had a bog issue on the bike with the pipes or unit. I know it has to do with too much air coming in and i need to adjust this some how with out using resistors or removing the tps to do this. any help would be great thanks

[mrmegadeth]

Almost all of the Dynos showing AF on the 900 do not show lean conditions. Most actually show a slight richness. You can get a bog down by dumping in too much fuel also. I'd say you are with an 8 and probably with a 5.

I think Alf has your setup.

[mrmegadeth]

^^ No, not quite but...

"My mods Cobra speedster longs, Thunder teardrop air kit and Cobra fi2000r. Air/Fuel was slightly rich till 3500 RPM then bang on all the way to the rev limiter. It was not out enough to worry about tweaking the fi2000r settings. Oh forgot my local dealer was giving out $25,00 off coupons in the end the dyno cost me a whopping $35.00."

[Sweet N' Low]

Hello MrMegadeth...greetings from hobbs

[rsterren]

VN800 Grampsized.

155 mainJet, 48 Pilot, 4.5 turns mixture.

Tried the 165/50 setup, but it ran way to rich, so we ended up with this.