Dyno results for K&N drop ins/exhaust

Tempestz

Alright so I've had this dyno sheet for a while, and I have been reading about K&N dropins results have been all over the place. Well here is my input on the matter.

I did three pulls on the same day, first was baseline, second was the addition of short tails, and third was the addition of the dropins and mishimoto post maf hoses... Hopefully this will clear any confusion on these. All results are UNTUNED. I did NOT have the car tuned these are strictly for test results of the additions. Hope you enjoy!

Any questions please ask away

Edit- This was done on a dynojet

Attached Images

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Riptide67

Not bad

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2009 Nismo 370Z and 1975 Datsun 280Z 2+2 - PNW_INC - Legacy_Ohana
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Tempestz

Thanks! Wasn't really going for high numbers just to see what the combo would put down

DCNISMO

Looks good, add in a some FI or Berk HFC and a tune..and your set.

Tempestz

i would, but i have plans for a boosted performance twin scroll turbo kit for middle of next year.

otherwise id buy some ART pipes and motor dyne cat back

Elan

So with my set up (Short-tails + K&N), I should be running about 285whp and 230 torque. Makes me feel better about my simple and cost efficient upgrades. Going to get some Z1 MAF filters next. Hopefully bump it up to 290!

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2009 370Z NISMO #477 | AAM Competition Short Tails | AAM Competition HFCs | K&N Typhoon CAI | Kenwood DPX300U | Rockford Fosgate PRIME R300-4 | Rockford Fosgate Punch P165 | Rockford Fosgate Punch P300-12 | Polk Audio db1001 | 15% Tints | GTR Start Button |

Holy

So you gained +9 hp, thats quite a bit especially since it wasn't your first breather mod.

I'm replacing my SRI with some Z1 tubes and K&N drop ins as soon as i have my car back, hopefully i'll feel the difference!

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Tempestz

Yours being a nismo your should be 285-290 from the factory. Your setup should put you close 300.

Holy- I did notice a little difference after the mods, mainly in response. But it is enough to edge a 12.929 @ 108 in the quarter. So hopefully you can see the difference.

But hey for an easy $500 you can get +~20whp. So it's definately a nice bump for what you pay. Only thing I noticed was a lost a measly 1ftlb of tq with the short tails, which is NOT enough to notice.

I'm just glad I had the time and a shop to do this so people can kinda see how the short tails and the drop ins/post maf fair up with our cars. I'm installing some bumper intake ducts soon. And I no longer have the short tails, so hoping for a little more next time I go to the dyno.

Jordo!

That looks about right.

Any chance you can get the dyno run files (drf ) from the shop for my database? I'd be happy to make any comparison graphs you like (search for Jordo! and Proven Power Dyno for examples).

If you can get the drf's, please email them to drjlitman@gmail.com

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Tempestz

I'll look into it Jordo. The guys there were really chill so I don't see it being a problem at all.

There was another 370 there that night but he wasn't making the same numbers. He was 100% stock and was consistently putting down 271/227

Jordo!

Thanks!

Those numbers are also in the ball park -- even with the same correction factor applied, weather, wheelspin, success with break-in, will result in some variance from run-to-run and vehicle to vehicle, all else being otherwise equal.

Gear you are in also plays a role -- torque and power curves will probably be nearly very close across equal set-ups on the same (and also other) dynojet(s).

On load holding dynos, numbers will vary more wildly from shop to shop, depending on what settings they enter... there's less variance across dynojets, because all calculations are based on the speed at which the known weight and diameter of a drum is rotated.

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Tempestz

Oh ok. I'll make sure to let him know, he was pretty down once he saw his didn't make the numbers mine did... Granted not much less at all. These pulls were all done in 4th cuz there dyno topped out at 150. He didn't want to take the chance of it topping out before the gear did.

Zbrah

Look up my f/s thread

Jordo!

4th is fine -- less wear and tear on the motor

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P's_Z

Thanks for the info! I just put my K&N drop ins this week(everything else stock) Next, ill get the Z1 maf hoses and FI CBE followed by a tune. Very excited to see my results after seeing yours.