Let's Talk Timing Maps

[Greg E]

Zeroing the translator and relying on the flash for tuning will give good load nombers. Unless you max the load calculation in the ecu for the programmed MAF size.

Jeff

The older version translators (with the 4 knobs) seem to report less airflow than the MAFTPro. No clue why. Could be the MAF being used as well.

[kywhitelightning]

The older version translators (with the 4 knobs) seem to report less airflow than the MAFTPro. No clue why. Could be the MAF being used as well.

I haven't logged my translator in a while but the last time I pulled a log from it, it saw 670g/s. Any idea what that should represent in Hz? That was before I upped the "fuel cut cap" on the translator so there was no correlation to the Hz value the ecu saw. That comes up to 88.62Lb/Hr. I have an idea of where that should land me HP wise and VD backs it up. Now since the Hz value is essentially uncapped I see near 4800Hz. Do the numbers have any correlation or is there skew from the translator?

This is a translator gen 2 not pro btw.

How do you screen shot the maps? I know I can print screen and then use word to save it. Is that what you guys are doing to post them?

Jeff

[Greg E]

I haven't logged my translator in a while but the last time I pulled a log from it, it saw 670g/s. Any idea what that should represent in Hz?

I've wanted to flow bench test a MAF for a while. Just never found a place to do it for me.

[NOMIEZVR4]

I haven't logged my translator in a while but the last time I pulled a log from it, it saw 670g/s. Any idea what that should represent in Hz? That was before I upped the "fuel cut cap" on the translator so there was no correlation to the Hz value the ecu saw. That comes up to 88.62Lb/Hr. I have an idea of where that should land me HP wise and VD backs it up. Now since the Hz value is essentially uncapped I see near 4800Hz. Do the numbers have any correlation or is there skew from the translator?

This is a translator gen 2 not pro btw.

How do you screen shot the maps? I know I can print screen and then use word to save it. Is that what you guys are doing to post them?

Jeff

Just open the map, press the print screen button on your keyboard, open paint, and paste. then you can save it to some online photohosting place...aka photobucket and link it. I can do it for you if you'd like.

[kywhitelightning]

Just open the map, press the print screen button on your keyboard, open paint, and paste. then you can save it to some online photohosting place...aka photobucket and link it. I can do it for you if you'd like.

That'll be fine. Thanks

Jeff

[TwIzTeD_3kGt]

This is my 20psi map. I think I had to back off timing one more degree up top when the summer heat got real bad (90+F), but other than that, it's solid.

As you can see, I changed the stock map quite a bit. I was convinced the timing jumping around the way the stock map does was causing knock during spool, since the 19t's spool around 4200rpm for me. A smooth progression took care of it.

[NOMIEZVR4]

That'll be fine. Thanks

Jeff

Jeff's Timing Map

[kywhitelightning]

This is my 20psi map. I think I had to back off timing one more degree up top when the summer heat got real bad (90+F), but other than that, it's solid.

As you can see, I changed the stock map quite a bit. I was convinced the timing jumping around the way the stock map does was causing knock during spool, since the 19t's spool around 4200rpm for me. A smooth progression took care of it.

19L's should not spool at 4200. Mine were at full spool with head work by 3400-3600 tops. I started my pulls at 2800ish so maybe that's a factor too. 4200 just sounds lazy, no offense.

Jeff

[NOMIEZVR4]

He's on stock heads IIRC...I think he's basing the number off of his dyno chart where the TQ starts to flat line...Hey Rick do you have a map sensor and can you log boost? My car doesn't start moving till about 3500ish in 3rd gear and I've got cams.

[TwIzTeD_3kGt]

19L's should not spool at 4200. Mine were at full spool with head work by 3400-3600 tops. I started my pulls at 2800ish so maybe that's a factor too. 4200 just sounds lazy, no offense.

Jeff

He's on stock heads IIRC...I think he's basing the number off of his dyno chart where the TQ starts to flat line...Hey Rick do you have a map sensor and can you log boost? My car doesn't start moving till about 3500ish in 3rd gear and I've got cams.

This. Going off my VDR charts, at 20psi they aren't fully spooled until at least 4.2k. That's from starting around 2.5k on the pull. Stock heads. No offense taken of course, I'd be happy if someone noticed something wrong with my setup.