EFIDynoTuning Forum

Here we go...

Immediately after the throttle hit the floor the AFR went to 15.4 and seemed to sit there for a couple seconds. Came down to 15 and 14.0 after several hundred feet of travel.

Got down into 13's after that. Wish I could video the tach and AFR at the same time. Maybe I could tape the phone to my forehead. lol

Have a good Sunday

Is there any way to get the engine rpms to drop quicker when the throttle is released? For street driving it's not an issue. Off road a split second of "unintended" rpm takes you into rock or dropping off a ledge when you were inching into it under power but now need to stop in a few inches. Makes a real difference.

Rev limiter, sounds right. I tried running it up a bit closer w/o hitting it but must have hit it. :)

I will run it again in the am.



Question on A9l or A9P ECU's, really appreciate your expert advice here.

I have 2- A9P's and 1 A9l. Currently running the A9l. The Qtrhorse doesn't care about either- correct?

So long as I have my (soon to be) NSS wired properly can I switch from one to the other w/o ANY issues- CORRECT??

Or should I plan on running just ONE specific model, like the 2- A9P's I have? I need a spare for this one and I'm currently building a slammed, 2wd, hot rod 418 supercharged Bronco that I might be using the same system on if you're interested in helping me with that one also??

Thanks.

Super loud backfire the split second I let off the pedal at 5600 or so.

Seemed to run fine. Idle could be raised up to 750 or so. Did not notice any pinging but dang it's windy out today and without a full cab it's hard to hear anything.

AFR seemed much better at 2500 rpm going up the same slight incline and into the wind as earlier.

HOPE this is the correct data log file. I did not shut it off after WOT. Kept it running till I got home.

OK.... off I go. Thanks. On the top of TunerRT it showed BCOO2 then "f2". Is there anything on the RT that actually shows what tune you have using right then?

Listened closely, no pinging. With wind noise, 40" tire howl, etc lol

"coldish" start and hot starts were both OK. No issues

Here are a couple logs.

GO ahead and raise the idle 100rpm to 750 or so.

Thanks

I am very familiar with pinging but with this engine and being a Bronco it's hard to hear anything. Largest mufflers I could fit were 20" body length (and I lowered the floors and moved body mounts to do it) , not having an enclosed top it is extremely hard to hear for any. Rather be a bit safe than wish I had been. lol

Ford Racing put this together and recommends no more timing than 32deg at 4,000 rpm. First engine I've ever purchased as I had a 2 week window. I have built dozens of sbf strokers and would have built this one differently but I had an annual event and this was it.

How do I get more air for the isc? Can we allow more air thru the IAC by opening up the stock sized hole? It's designed for a 5.0 and I gotta be needing more air at idle than a 5.0.... just guessing here.

Heading out to datalog and listen.

thanks for the quick turn around

I tried again before I saw your reply. Thanks I'll check out your updated writeup for "those that can't". lol

Check out the 3 minutes prior to the WOT part of the log. Reason for concern is at 2500 rpm in 5th gear into a nasty wind the AFR was a constant 12.5 with 11.9-12.3 tossed in if I moved the throttle at all. Don't know if that's too rich or not, just a heads up. It will show up on the log AFTER the WOT also as I recorded that and labelled it differently as I think I was labelling different datalogs with the same file name and of course they would write over the previous file. doh...


Let me know if you got both of these. thanks

Morning-

Due to me writing down the steps incorrectly for using TunerRt when you were helping me use Team Viewer the other day I have lost 3 days of tuning/data logging-obviously my fault as I got 1 or two tunes &/or datalog to work but I was clicking random buttons because the red "record" light wouldn't come on.

Could I bother you again sometime early enough today to allow me to write down the proper sequence so I can have them written down and get a datalog to you WITH the latest tune file?

This will also be helpful for my other 2 buddies that are going with you also since Tim already didn't follow the proper procedure (couldn't save the tune) when he was helping me the other night.

Thanks. I'm running out of days due to me not having steps 1-8 written down in order, my fault but feeling the pressure.

Thanks.

2 passes.

I also had the no start on the side of the road and you had me increase the multiplier for the tables from 1.0 to 2.0.

Of the two runs this afternoon the AFR numbers were better down below 3K. In the high 12-13. BOTH the runs I had this afternoon, one before no start and one after, I had such a definitive "pause" at or around 3,000 rpm that I looked down to my shifter/trans controller each time to see if my trans had shifted somehow into a higher gear. VERY definite pause, then accelerate again. When the RPM's got up around 5K I had 16 or 17 AFR. No lean pop.