Whipple running rich / fat

[Tomlouns]

So I dropped 150 bucks on a smoke test no leaks ... at 7psi I really wanted to rule this out.

PBD just sent me a updated tune... I will install and share the logs...

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[Tomlouns]

Here are some idle and rev logs. on the updated PBD tune. Any feedback you have I welcome... Thank you!

 

[Tomlouns]

PBD has sent a second updated tune... they said we are getting closer... I will install it and post the logs.

 

[Tomlouns]

seems to run even better... posting logs … I welcome your feedback.

 

[greengoblin31]

seems to run even better... posting logs … I welcome your feedback.

little easier on the eyes if you use .csv format on the datalog uploads.

logs look closer; car gotta feel pretty good?

 

[Tomlouns]

little easier on the eyes if you use .csv format on the datalog uploads.

logs look closer; car gotta feel pretty


The site will not let me load csv files for some reason .

We are done to one last issue... it is a start up issue.

Once the car starts, the rpms pop to about 1,500 like they should and then drop to 500 and almost stalls... then comes back to running like it should... within a few more seconds.

 

[F1scamp]

Where in NY you located? Mine always idles a little funny when its around freezing temps.

 

[stang17]

I'm running a slightly tweaked Whipple tune. There has been times where if I didn't drive the car over the weekend, come Monday morning on startup the car would have a difficult time with idle for the first minute. There has been times where I even had to give it a little gas to keep it from stalling out for the first 20 seconds or so after start up. This only happens when it's very cold, like between 0 and 25 degrees outside. I'm in PA.

I've also had the issue where it goes from about 1300rpm at idle and drops down to 500ish from before bouncing back. Sometimes it will do it at stop traffic lights within the first mile of driving after start up. Again, only happens in the very cold weather.

 

[Ishyne22]

I'm running a slightly tweaked Whipple tune. There has been times where if I didn't drive the car over the weekend, come Monday morning on startup the car would have a difficult time with idle for the first minute. There has been times where I even had to give it a little gas to keep it from stalling out for the first 20 seconds or so after start up. This only happens when it's very cold, like between 0 and 25 degrees outside. I'm in PA.

I've also had the issue where it goes from about 1300rpm at idle and drops down to 500ish from before bouncing back. Sometimes it will do it at stop traffic lights within the first mile of driving after start up. Again, only happens in the very cold weather.

Cold start issues can be tuned out via pulse width in water/coolant temp table.

 

[ugstang17]

Give Rob a chance. He and Ken will get it ironed out. They do a good job on stick shift cars. Just takes some revisions to get everything dialed in. The drive ability and idle are the two most difficult parts of a tune. Add a larger TB to the equation and things get even more touchy until it gets dialed in. Headers can also create a few oddities until everything gets complete due to the relocation of the lead O2 sensors with respect to stock. If you wish to enlighten your knowledge on tuning basics obtain a book called Advanced Tuning by Greg Banish. I reference it all the time. My next car is going to be a manual shift again. I plan to tune it myself.

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