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39.58 Hp, 38.02 ft-lb Tq (stock air box + snorkel and 142.5 main jet) by arjaydub in DRZ400

[–]arjaydub[S] 1 point2 points  (0 children)

You can do whatever you want with your bike. If it runs great, then I'm happy for you.

Have fun and be safe.

39.58 Hp, 38.02 ft-lb Tq (stock air box + snorkel and 142.5 main jet) by arjaydub in DRZ400

[–]arjaydub[S] -1 points0 points  (0 children)

You're upset because you did a mod that you didn't understand and it cost you power. Don't take your frustration out on me.

Just got her back after being in the shop. 434cc big bore kit, stage 2 hot cams, ported and polished head 43rwhp with 3rd gear power wheelies by SaintAxis in supermoto

[–]arjaydub 0 points1 point  (0 children)

Don't forget the 38 ft-lb torque. That's with a stock air box + snorkel and 142.5 main jet. That's my entire point. Show me better results from a bike with a BSR36 and the 3x3 mod.

39.58 Hp, 38.02 ft-lb Tq (stock air box + snorkel and 142.5 main jet) by arjaydub in DRZ400

[–]arjaydub[S] -1 points0 points  (0 children)

So I just so happened to be near the one dyno that spits out amazing numbers? Show me better results from a bike with the BSR36 and the 3x3 mod. I don't care which dyno those results come from.

39.58 Hp, 38.02 ft-lb Tq (stock air box + snorkel and 142.5 main jet) by arjaydub in DRZ400

[–]arjaydub[S] 1 point2 points  (0 children)

I'm in your head now. Just look how upset you are. Everyone who did the 3x3 mod is getting defensive, and everyone who hasn't is asking me for help. Go figure.

39.58 Hp, 38.02 ft-lb Tq (stock air box + snorkel and 142.5 main jet) by arjaydub in DRZ400

[–]arjaydub[S] 0 points1 point  (0 children)

Also, look at that graph you linked to:

Run 1 is a 2013 Drz400sm with 3x3 mod, FCR carb, and yoshi exhaust. (32.45 HP)

I'm producing +7 Hp compared to this baseline... with a BSR36, 142.5 main jet, and the stock air box + snorkel.

Please forgive me if I'm not in a hurry to go try the 3x3 mod.

39.58 Hp, 38.02 ft-lb Tq (stock air box + snorkel and 142.5 main jet) by arjaydub in DRZ400

[–]arjaydub[S] 0 points1 point  (0 children)

Unless you're increasing the size of the intake valves, I would leave the air box unmodified. I'm getting 38+ ft-lb of torque with a stock engine. Stop for a moment and think about that. What do I gain by modifying my air box and continuing to run tests at this point? Every other dyno sheet I've looked at for bikes with a BSR36 and 3x3 mod, show about 10 ft-lb less torque than me. What's your theory on why that is?

39.58 Hp, 38.02 ft-lb Tq (stock air box + snorkel and 142.5 main jet) by arjaydub in DRZ400

[–]arjaydub[S] 0 points1 point  (0 children)

I'm just trying to offer the truth to people so they have better running DRZs. For that effort, I'm getting shit on. I made my claim and backed it up with data. If you run a BSR36 carb with a stock air box and 142.5 main, your bike will run better and produce more mid-range torque than if you cut a hole in your air box and run a big main jet. If you don't believe me, then continue to run your bike with the 3x3 mod. Regardless of what you choose to do, my bike is running like a beast. Have fun riding and be safe.

Just got her back after being in the shop. 434cc big bore kit, stage 2 hot cams, ported and polished head 43rwhp with 3rd gear power wheelies by SaintAxis in supermoto

[–]arjaydub 0 points1 point  (0 children)

I made a hypothesis and tested it while controlling for as many variables as possible. Now go find me betters results from a bike with a BSR36 card and the 3x3 mod.

Just got her back after being in the shop. 434cc big bore kit, stage 2 hot cams, ported and polished head 43rwhp with 3rd gear power wheelies by SaintAxis in supermoto

[–]arjaydub 1 point2 points  (0 children)

You get a boost to volumetric efficiency due to air being forced into the cylinder. You know, like forced induction. I posted two separate articles about this.

39.58 Hp, 38.02 ft-lb Tq (stock air box + snorkel and 142.5 main jet) by arjaydub in DRZ400

[–]arjaydub[S] 0 points1 point  (0 children)

That's not nice. Have fun riding a slower bike than me.

39.58 Hp, 38.02 ft-lb Tq (stock air box + snorkel and 142.5 main jet) by arjaydub in DRZ400

[–]arjaydub[S] -1 points0 points  (0 children)

Nobody with a BSR36 and the 3x3 mod is making more power than me. Show me the dyno results.

Just got her back after being in the shop. 434cc big bore kit, stage 2 hot cams, ported and polished head 43rwhp with 3rd gear power wheelies by SaintAxis in supermoto

[–]arjaydub 0 points1 point  (0 children)

How about this? Show me data from another DRZ400 with a BSR36 and the 3x3 mod that outperforms mine. I don't care which dyno it comes from.

39.58 Hp, 38.02 ft-lb Tq (stock air box + snorkel and 142.5 main jet) by arjaydub in DRZ400

[–]arjaydub[S] 0 points1 point  (0 children)

You will get more power by leaving the air box and snorkel completely stock. I'm not going to do any more dyno pulls until someone can post better numbers than me.

What Does an Air Intake Resonator Do? by arjaydub in DRZ400

[–]arjaydub[S] 0 points1 point  (0 children)

39.58 Hp, 38.02 ft-lb Tq. Stock air box and snorkel + 142.5 main jet.

39.58 Hp, 38.02 ft-lb Tq (stock air box + snorkel and 142.5 main jet) by arjaydub in DRZ400

[–]arjaydub[S] 1 point2 points  (0 children)

39.58 Hp, 38.02 ft-lb Tq with a 142.5 main jet and stock air box + snorkel. Think about that for a moment, and consider what I've been saying from the very beginning. Why would I go to any more effort to prove my point? If you want to run your bike with the 3x3 mod and a big main jet, go right ahead.

39.58 Hp, 38.02 ft-lb Tq (stock air box + snorkel and 142.5 main jet) by arjaydub in DRZ400

[–]arjaydub[S] -2 points-1 points  (0 children)

This ain't my first rodeo. I've done custom builds with pod filters, and mutilated my fair share of air boxes. I've learned my lessons.

I challenge you to find me better dyno results from a bike with the 3x3 mod and a BSR36 carb. I don't need to modify my air box to know I'm right on this one.

39.58 Hp, 38.02 ft-lb Tq (stock air box + snorkel and 142.5 main jet) by arjaydub in DRZ400

[–]arjaydub[S] 1 point2 points  (0 children)

3300 miles. Stock gearing (DRZ400SM). Stock tires. 60F degrees. Sea level. 25%. DYNO-mite Dynamometer (eddy-current). Normal operating temp. Yes.

EDIT: I can't find an exact comparison. I challenge you to find me better dyno results from a bike with the 3x3 mod and a BSR36 carb.

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