Stock Dyno Pulls

[Redraider]

I just got my 2021 Type R a few weeks ago and I took it down to a local tuner and had him do 3 pulls. I have made no modifications, everything is stock with the exception of Acuity shifter and bushings. I wanted to get a baseline performance before I added any bolt-ons or tuned with my Hondata. The temp was 65 deg with 90% RH. The tuner had a Dynojet 424. I say all that because I was quite shocked at what I saw. I averaged 333.6 hp and 339.7 lb-ft of torque. This is almost 10% greater than OEM stated numbers.

I'd like to know if anyone else had dyno'd their car stock and got such numbers? I have to question the calibration of the dyno?. I am not sure what ambient temp Honda used on their published power ratings, but I assume it would be at ISO conditions which is 60F. I am not believing the numbers. What are y'alls thoughts?

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[Truckinturtle]

I just got my 2021 Type R a few weeks ago and I took it down to a local tuner and had him do 3 pulls. I have made no modifications, everything is stock with the exception of Acuity shifter and bushings. I wanted to get a baseline performance before I added any bolt-ons or tuned with my Hondata. The temp was 65 deg with 90% RH. The tuner had a Dynojet 424. I say all that because I was quite shocked at what I saw. I averaged 333.6 hp and 339.7 lb-ft of torque. This is almost 10% greater than OEM stated numbers.

I'd like to know if anyone else had dyno'd their car stock and got such numbers? I have to question the calibration of the dyno?. I am not sure what ambient temp Honda used on their published power ratings, but I assume it would be at ISO conditions which is 60F. I am not believing the numbers. What are y'alls thoughts?

When accounting for driveline loss to the wheels it more like 350 hp ,maybe it's underrated that's awesome hopefully my si is underrated the only other answer would be if that particular dyno has people with high readings

 

[Res0zsfa]

I know dynojet rates pretty high but not this high. Also curious what others have been getting

 

[tinyman392]

Dynojets measure at the axle right? That would create a higher reading, but that’s still a tad high. Were any corrections done to the dyno run?

 

[Redraider]

Dynojets measure at the axle right? That would create a higher reading, but that’s still a tad high. Were any corrections done to the dyno run?

It does measure at the axle. There were no corrections made, it was strictly just 3 pulls. I also realized that the published 306 hp is at the flywheel of the engine and not the axle. Which makes these numbers even more unbelievable.

I'm not complaining but I'm not fully believing the numbers.

 

[tinyman392]

It does measure at the axle. There were no corrections made, it was strictly just 3 pulls. I also realized that the published 306 hp is at the flywheel of the engine and not the axle. Which makes these numbers even more unbelievable.

I'm not complaining but I'm not fully believing the numbers.

Without corrected numbers, you really can't compare to begin with. That said, the Type R might actually be underrated from the factory since there are corrected dyno runs that hit 290-300 at the wheels (accounting for about 320-330 at the crank). Your 330 at the axle is a bit high, but I'd need corrections to get a better comparison.

 

[Azov237]

302whp on a most stock car.

Ended up at 373who/388wtq if I remember correctly on E30.

 

[MadMage]

I had an experienced racer tell me they estimate 330 with their Butt Dyno for my car. I didn't believe them, but maybe?

 

[Byron Sexton]

How is it long term for reliability for the car to run a 93 Octane tune?

 

[EdG]

How is it long term for reliability for the car to run a 93 Octane tune?

93 octane is recommended so it should be as good or better than other octanes. I assume you mean US octanes.

 

[AlphaDigital]

That seems really high even compared to hub dynos. Would be interested to see what it makes on other dynojets.

The highest I saw was from Hondata and even they admitted that their dyno ran higher than other ones. I understand that dynos vary even amongst dynos of the same type, but those numbers are statistical outliers for sure.

 

[201FK8]

295WHP 287WTQ on 92 gas here in WA
DYNOJET FOR MINE on 47F and 41% humidity
I think the "306"hp for US market is not true its closer to the 320hp jap/eu ratings

 

[201FK8]

i'll post my graph later

 

[spaghettixsauce]

All dynos will read different, even ones that are of the same make & model. It's really hard to compare one persons numbers to another unless you were both on the same dyno tbh.

With that said, my car (2018) completely stock dyno'ed at 293/284 on a DSport Magazine's Dynojet 424xLC2 (whatever that means).
This was used with the SAE correction factor.

IIRC, different correction factor settings will yield slightly different numbers as well. (SAE being slightly lower)

I'm no expert. If we wanna keep it simple, only compare your car to other cars that have used the same exact dyno at the same location as you have lol.

 

[tinyman392]

I'm no expert. If we wanna keep it simple, only compare your car to other cars that have used the same exact dyno at the same location as you have lol.

To be honest, if you're going to start going down that road, you should probably also add in the same day/hour too. So many factors coming in... That's why a lot of estimates typically give you a range of 10-20 HP, sometimes as high as 30

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