Sorry for the delay.

What is the exact mph you saw in the test ski at 295hp?
Thanks
Just want to know what is the 80+

I can only say that it was over 80.

Riva,

I realize that all dyno's are different, etc...

But don't those A/F ratios seem a bit high for a forced induction motor? They were very good for the Stage II packages...

Is this a different dyno or the same equipment used to gather the Stage II data? (as that might account for the variance)

Why the mixture is so lean ? What's gonna happen on cold places ? Thanks.

Anyone to respond ?

Sorry for the confusion on the A/F numbers. The Dyno run I posted was logged prior to final on-water calibration. To clarify our A/F ratio data I posted a graph generated by our onboard data acquisition system used during water testing and calibration.



Note that as engine RPM increases A/F ratio improves. This is because our ECU's fuel mapping is boost sensitive and will deliver more fuel as manifold pressure increases. Our mapping will cover a broad range of modifications due to its robust fuel and timing maps. Stage II through Stage III-plus will be adequately fueled without the need for additional fuel system enhancements.

Again, sorry for any confusion created on our part.

Isn't 12.95:1 still too lean between 4000-7000rpm ? That graph is the perfect recipe to explode an engine.

No, 12.9 is just fine at those RPM's. Boost isn't as high and those are cruising RPM's.

Ever measure the AFR on a stock ECU? I have!
How about 13.7 to 14.0 between 3500 and 7000 RPMs.

Riva Crew, how about a 0-60mph time and a 0-top speed time?

Thanks

That info will be available in the upcoming issue of PWI. Don't want to scoop them on their exclusive test!!!

Did you guys fix the dangerous A/F ratio ?

What if we put a 13lb supercharger on with your ECU and 50lb injectors?

quote:

Originally posted by rafael:
Did you guys fix the dangerous A/F ratio ?

Nothing to fix. Please see my post above with the A/F vs RPM data (7 posts up).

quote:

Originally posted by rxpstan:
What if we put a 13lb supercharger on with your ECU and 50lb injectors?

Not sure. We've never tested with one. I don't want to speculate and end up misleading someone.

Did you guys fix the dangerous A/F ratio ?

I believe I just replied to your other post.

OK that looks much better...