Dunno, I didn't ditch Ecuflash for the problem. I just decided to use Cobb since they are close. Like I said, it wasn't that big an issue, it was just annoying. I am guessing it was my stock rom, but that didn't explain why it was worse with tephramod, who knows. Thanks for the suggestions and info though, I appreciated it. After selling my Tactrix, the cost of the AP wasn't that much different than a road tune by most tuners. So all in all it was a good deal. I initially had an issue with the $799 and $699 price tag they used to have, they recently dropped from $695 to $595, so that sat a little better with me.

 

If I lived on Cobb's doorstep I would consider the AP as well, lol.

Now get a protune from them!

 

I am going to get my pro-tune when I get ready for my E85 conversion project this fall. I am running a 93 AMS OTS map at the moment and it is running great. 26 PSI peak boost tapering to about 17 PSI, with 11.4-11.7 AFR with practically 0 knock. There really isn't a reason to get a pro-tune from them with my current setup, since they already have a canned map for my mods. I would only get some smoothing out of the pro-tune, and maybe marginal HP gains, not worth the money atm.

 

Is it possible to add a lower bound ignition timing table to the alt map section for the MR models? This is not really important of the gsr. However it would be possible to have an E85 MR with a lower bound ignition timing higher than the gasoline timing map target, and this would be bad.

 

I would guess the lower bound ignition timing is the same for all maps. This isn't like switching to a full new storage chip, its just saying "point to map Y instead of map X for this specific function".

 

On the MR, the lower bound timing table should have different values in it for E85 versus 93 octane. Otherwise the timing floor gets higher than the target floor, as I said in the post. This is not an issue for GSR's. It has to do with the way the MR handles timing on shifts. So no, it isn't the same for all maps on an MR, or at least it shouldn't be.

 

Have you tested using your 93oct lower timing floor table with E85?

 

Yea that's actually a pretty good point. If the lower bound is alot lower then the actual timing map you are going to get higher boost spikes between gears and degraded shifts.

You would want to make the lower bound be for whatever your lowest octane is when using the Tephra ROM as if you set it for the higher octane/timing numbers, it will be *bad* for the lower octane/timing map as the ignition timing at WOT will *not* go below the lower ignition timing table.

- Bryan

 

Sorry, I wasn't clear on what you had written. I read it like you thought that the lower bound map reverted to stock when you were on alt-maps.

 

I donated to Tephra a month or so before V1 was released. So why am I sad that my name doesn't appear on the donators list?

I know it doesn't matter...but I donated too!

 

In a round about way yes. Prior to changing my lower bound table to be withing 3-4 deg of actual target, I ran the car with the stock lower bound map. As Brian said, the boost was spikey on shifts, and they were not "clean" like they are now. LIke some other things, this is an MR only issue.

I set the lower bound table at 3deg difference from the 93 octane map when I enable map switching. On my personal car I set the diff at 4 deg from the E85 target since it never gets any other fuel, and map switching is disabled. I chose 4 deg instead of 3 because of 2 factors. I run so much timing on my car, that I wanted it to have the extra degree to pull, and I could not feel a noticable difference between 3 and 4 degrees on shifting, though I could at 5 deg.

 

im unable to update my XML's with the provided links on post 1. Ive upgraded to the newest ecuflash, but I cannot get the tempV1 rom to show working with my other tables as i am still on ROM 52680015

any help?

 

Well, Tephra Mods are in 52680122, so you will have to migrate your tune over if you want it.

 

I finally got dyno-tuned with my TephraX V1 and am loving it as expected. I can't wait to see what comes in the future versions of TephraX. I had my alt maps setup for 91-octane and my primary maps setup for 93-octane. I got tuned in Minnesota where 93-oct is available, live in Texas where 93-oct is available, but there is nothing but 91 in between I set alt maps to be activated with the cruise button and every few mins (or so...I didn't count) the IC sprayer light blinks to indicate alt maps are still on. It's nice the alt maps stay on until deactivated even when making stops and turning the car off.

Thanks again to Tephra and everyone else for all the hard work!

 

I'm curious if this explains why when I faux NLTS on my GSR (with the 2 step set to not disable) I seem to spike pretty big on shifts. I don't seem to have much time these days, but I'll see if I can test. Maybe its hitting a similar function triggered by the throttle being 100% and or clutch-action (as reported by the clutch pedal or TCU).

That could be a consideration for V2