Hondata releases FlashPro for Civic Si

[Hondata]

Full specs here:

From as little as $350 and 50 state emissions legal.

Available now, the FlashPro for the 2017 Civic Si adds the most power and torque for any Civic Si. Also introducing the Hondata Sport mode; a revolutionary enhancement. In addition to Honda's suspension, steering and throttle improvements the Hondata Sport mode adds 27 hp and 40 lb-ft torque to make the best use of the Civic Si's sport mode improvements.

Hondata's full throttle shift is the quickest way through the gears. Just dip the clutch and change gear with your right foot pegged to the floor. Hondata's full throttle shift algorithm cuts the engine power until the clutch is released. Eliminate your boost lag, improve your 0-60 and 1/4 mile times all while having a ton more fun.

• Bottom dotted curve stock. Bang on Honda's rated 205 HP with 235 lb-ft torque
• Solid green + 6 PSI calibration 232 hp 258 lb-ft torque

The + 9 psi calibration is capable of generating 272 lb-ft peak torque.

Sponsored

 

[ChrisSi]

From the website link:

"In our testing we found the stock clutch will slip with the +9 psi calibration so we recommend using the +6 psi calibration"

Looks like the same issue as VitViper's testing?

 

[Hondata]

We've clarified the web link:

The supplied +9 psi calibration is capable of generating 272 lb-ft torque. In our dyno testing we found the stock clutch beginning to slip. The Dynapack dyno is very hard on the drivetrain and is more likely to cause slip than street driving with stock tires. Our road testing to date has shown no clutch slip with the + 9 psi calibration. We recommend using the +6 psi calibration.

 

[ChrisSi]

We've clarified the web link:

Our road testing to date has shown no clutch slip with the + 9 psi calibration. We recommend using the +6 psi calibration.

I think this is really important to point out. Dyno load =/= resistance on road.

I'm excited. What else does Hondata Sport mode do? Does it switch maps from standard to the tuned map when you press the standard Sport button?

 

[Hondata]

Yes. We're excited too.

 

[procivic]

Wow, more impressive power gains than I was expecting. Awesome job Hondata! It's great you guys took advantage of the Sport button too.

Interesting that your dyno seems to indicate the Si puts out just about advertised hp, while Vit's dyno indicated the Si was underrated.

I guess we're going to have to do a same day dyno comparison with our EXT and Si, with and without FlashPro!

 

[ChrisSi]

Interesting that your dyno seems to indicate the Si puts out just about advertised hp, while Vit's dyno indicated the Si was underrated.

Since both stock dyno results showed 200+hp at the wheels/hubs, it would appear that both curves are showing it was underrated.

 

[procivic]

Since both stock dyno results showed 200+hp at the wheels/hubs, it would appear that both curves are showing it was underrated.

You would think that, but they are totally different dyno's and from what Vit has said, his seems to be about a 15% or so drivetrain loss.

 

[ChrisSi]

You would think that, but they are totally different dyno's and from what Vit has said, his seems to be about a 15% or so drivetrain loss.

Oh I know I didn't expect them to be the same, no Dyno is the same as another. I'm saying that the advertised 205hp is SAE NET, which is NOT at the wheels. So if they're getting 200+hp at the wheels/hubs on their respective, it shows the advertised 205hp value was underrated.

 

[zx2down]

Misread.

 

[sporting]

Only 6 hp difference Sport vs Si after tuning

 

[procivic]

Oh I know I didn't expect them to be the same, no Dyno is the same as another. I'm saying that the advertised 205hp is SAE NET, which is NOT at the wheels. So if they're getting 200+hp at the wheels/hubs on their respective, it shows the advertised 205hp value was underrated.

The new Si is probably underrated by some amount, but I'm just not sure how much. We intend to do a same day dyno test to find out.

 

[procivic]

Only 6 hp difference Sport vs Si after tuning

That graph is from a +9 PSI tune on an non-Si 1.5T motor. They might have been using higher than 91 octane fuel too. I'm not sure on that. The +6 PSI basemap for the non-Si models does not make 225 hp though.

 

[sporting]

That graph is from a +9 PSI tune on an non-Si 1.5T motor. They might have been using higher than 91 octane fuel too. I'm not sure on that. The +6 PSI basemap for the non-Si models does not make 225 hp though.

Blue line +9 PSI Si motor. New impeller 9 blades, lower CR 10.3 and better air inlet & exhaust system is capable of making only 6 hp more.

 

[VitViper]

With 400 miles on my test car the clutch was holding OK at sub-260 tq levels. I pushed it the other day into the 300tq+ area and it would just shred the clutch. I pulled it out the next day. The material on the disc was being ripped off. This was on the street as well (if you try to actually USE the torque -- you can say it "doesn't" slip on the street because if you shift at red line you're never going to see all that peak mid range torque).