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Discussion Starter · #1 · (Edited)
A little something that happened today pretty much by accident. two 2012 , Victory hammers came in looking for more power. Obviously you can see this dyno is very conservative but a comparison is still a comparison. One bike has torque tubes, dr cams, bassani turnouts, timing wheel and tuned using a PCV, the other has a Thirdgear intake, Andrew's 472 cams, Norseman Performance LLC ironside exhaust and tuned using a maximus. So which one is which? You tell me.

Red line is llydz TT, PCV, timing wheel, VM1 cams, bassani turn outs. Blue line is TGC intake, Andrew's 472's, Maximus tune, iron side Exhaust, underdrive pulley. More power for less money.

 

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The UNDERDRIVE PULLEY is changing the final drive which will screw with the results. Likely the reason for the first graph showing the TT being out performed in torque down low.

The pulley also increases the build price beyond the cost savings on the intake.
 

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Discussion Starter · #6 ·
Tell me about these Thirdgear intakes. Price? Might be a good option to the Torque Tubes which are nice but crazy expensive IMHO.

How much do you think was spent on performance parts on each of these Hammer's?
You need to contract Alan Florez on Face Book and ask him. His shop is Thirdgear Customs on Face Book.
 

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Discussion Starter · #7 ·
The UNDERDRIVE PULLEY is changing the final drive which will screw with the results. Likely the reason for the first graph showing the TT being out performed in torque down low.

The pulley also increases the build price beyond the cost savings on the intake.
The underdrive pulley lowered the HP and TQ by 3-4 % after it was installed and run on the same dyno the same day.
 

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Discussion Starter · #10 · (Edited)
Need the same gearing on both to make a fair comparison.
Yes, I agree, but with the underdrive pulley installed on the Hammer that had the Thirdgear Customs intake on it, the torque gap would have been even wider. Why NIck and Cory posted this dyno chart comparison was to show that even with a 3-4 lower torque number on the Hammer that had the underdrive pulley installed on it and Third gears Customs intake on it, still put out higher torque numbers where most guy's like to ride the most, vs the Hammer that had the torque tube intake on it and stock gearing. This dyno chart also shows why the right selections of performance parts for the prospective customer's bike is so important. This dyno chart was posted on Face Book to show how well the performance parts on Hammer with the Thirdgear Customs intake system and Norseman Performance, two into one exhaust system worked so well together. Even Kevin at the Southern Motor Works comments on this too. :headbang:Yes, it would have been nice to see how both Hammer's dyno charts stacked up against each other with the same gearing, but by coincidence both Victory Hammer riders showed up on the same day to get their bikes on the dyno.
 

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Being that the cams are different, the exhaust systems are different, the gearing is different, the tuning device used is different, and it's 2 different bikes, I'm not sure how this can be called conclusive proof that any one component bested another. The exhaust system alone could have made that much of a difference, the cams alone could also have made that much of a difference, and mass produced engines can vary in output (Monday motor vs Wednesday motor).

The only way to conclusively compare the 2 airboxes against each other would be to install one airbox on a bike, tune it, and pull it for numbers... then switch to the other airbox, tune it, and pull it for numbers. Same bike, same dyno, same day, same pipes, same gearing, same tuning device. If the only variable was the airbox, that would be a conclusive comparison of the 2 airboxes without any speculation.
 

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The underdrive pulley lowered the HP and TQ by 3-4 % after it was installed and run on the same dyno the same day.
It didht cgage anything like that as kyou drop appr2ox 6% so the dyno will approx the same the power and tourgw are still there its howvit is interpreted by the dyno becausebof gearing change that all!
 

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Discussion Starter · #17 · (Edited)
Being that the cams are different, the exhaust systems are different, the gearing is different, the tuning device used is different, and it's 2 different bikes, I'm not sure how this can be called conclusive proof that anyone component bested another. The exhaust system alone could have made that much of a difference, the cams alone could also have made that much of a difference, and mass-produced engines can vary in output (Monday motor vs Wednesday motor).

The only way to conclusively compare the 2 airboxes against each other would be to install one airbox on a bike, tune it, and pull it for numbers... then switch to the other airbox, tune it, and pull it for numbers. Same bike, same dyno, same day, same pipes, same gearing, same tuning device. If the only variable was the airbox, that would be a conclusive comparison of the 2 airboxes without any speculation.
The two different Victory Hammers that came to the shop that day to run their bike on the Dyno were not there to see whose performance parts would perform better on the dyno. The main reason that this dyno chart was posted on FaceBook was to show that you don't have to pay the higher price for the torque tubes vs the Third-gear Custom intake to have a REALLY strong running engine that runs this strong at the rpm's where the majority of the guys on this forum ride at.
 

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The two different Victory Hammers that came to the shop that day to run their bike on the Dyno were not there to see whose performance parts would perform better on the dyno. The main reason that this dyno chart was posted on FaceBook was to show that you don't have to pay the higher price for the torque tubes vs the Third-gear Custom intake to have a REALLY strong running engine that runs this strong at the rpm's where the majority of the guys on this forum ride at.
But did it show that? Inconclusive, really.
 

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Discussion Starter · #20 ·
UOTE="Half_Crazy, post: 2909305, member: 692"]But did it show that? Inconclusive, really.[




What the dyno chart did show according to KevinX is that the combination of parts really puts out high torque where the majority of guys ride and don't want to spend the higher cost of the torque tubes.
 
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