There will always be quite a difference from a real dyno vs a simulator like this because the road and a dyno have different drag and load averages.
Same goes for mustang dyno vs dynojet. With that said, no the program is not inaccurate. (its accurate in its own environment)

I agree, a 60-100K dyno holds more weight than a free application that relies on your computer hardware and evoscans ability to accurately log. Keep in mind we are relying on some kind of processor / ram no matter how we tune our cars tho, so theres always a discrepency between the communication between the actual EMS and loggers data. We use the logging data on both virtual and real dynos.

Personally I believe I can outperform any dyno tuned car at spoolup/midrange, simply because power changes once the vehicle is put into its real world environment (street / track / etc) and mostly because AFR holds a lot of weight when it comes to tuning.

 

Wow that is a lot of timing at peak torque...

 

Did Ivey tune this?

 

What exactly should I log?

Correct, that was on Sunoco 93 pump. As for the 9* timing, I don’t have any tuning experience. What should the timing be at peak toque?

What’s wrong with the 3” IC? It can’t heat soak, outside temp was in the 30’s

I did 2 more back to back logs with lower boost (24 peak, tapering to 22) and it still knocked in the first run, but the knock was gone in the second run!!

 

cams, timing, etc.. dowell is off or something for it take 9* in that area. it was dyno tuned tho so its definitely confirmed thats what it wanted. The most ive ever had a car take so far was 7* on 93 pump. you need to change your timing curve uptop, its clearly to aggressive around the 6k range. pm me ill fix it free. its only a 3minute fix.

 

at 6300 RPM you need to remove that 13 degree timing and make it a 12 or 11. that's a large jump in timing that sets off the knock events.

Can you log your MIVEC advance as well? I'm really interested in your intake cam angle.

 

Dayuum 9* at peak torque Thats like almost twice what I run I 92. That 93 must be magic juice or somethings up. Who tuned the car? I'd be a little scared to track that car with that much timing in that area.

 

Do you have a wideband on the car? what is the AFR doing? It looks like its going lean out the top end???

 

Thanks, your timing fix worked. I flashed your changes this morning and ran some log. 5 back to back runs @ 26psi and no knock.

 

I do, @ WOT it's 10.5-11.5 and leans at the very top to almost 12. It also dips to the low 10's sometimes. It's very hard to drive and keep an eye on it.

 

glad to see its gone, but there should be alittle more tweaking done around the 5-6k still, as the timing is not slowly going up and trying to go back alittle.. you want it to go up slowly, never go backwards.

email me again if you want me to tweak it alittle more.

 

Great power/torque for 93 octane.

 

Was originally tuned with mixed 100oct and 93.

Thus the timing #s.



Sean

 

Well shame on the OP on running his race map on 93oct... Looks like he got a free tweak out of it though.

 

He could have gotten the same thing from Sean by emailing him. Always two sides to a story, I never pointed my finger at anyone because I know Sean wont let a car leave his dyno with knock exceeding 2-3 counts or more.

I figured it was more of a dyno vs road deal where the car was running hotter on dyno and taking timing but it was clearly the fuel in this case.

Sean you should unignore me now its been weeks now come on. I didnt mean what I said.