Tweecer help, ANYONE, PLEASE!!!

[Toolman]

I will email any and all who would like a datalog of my current configuration. I just need this thing to RUN! I am at the point where I would wholeheartedly advise anyone against getting a Tweecer, I am that frustrated. The freakin car ran better when it was reading full voltage the entire time (idle to 8000) from a miswired MAF. Now it will not run at anything under half throttle. It is not that I doubt it capabilities, but it seems to me the headache is not worth it. This car ran for 50k trouble free miles, with LOADS of power, on an LPM from SHOSHOP. On the advise of other users, I purchased the Tweecer, as it was touted as the end-all of SHO tuning devices. I am seriously considering selling it now. For charging $550, there is a WOEFUL lack of documentation or other help available to its purchasers. I know I should not be on here right now, as my frustration levels are surely affecting what I type, but it is absolutely maddening to have spent all this money, and now all this time, when for $25 I could have had my LPM reflashed.

So please, if ANYONE has any advice to offer, please share. If someone want to write a custom Tweecer calibration that will at LEAST get me going in the right direction, I would be eternally grateful, and would pay them for their time. Currently, with Josh's blower tune (available at his site) modified as follows, in order as you would encounter them in CalEdit: FUNCTIONS -- breakpoint - 6, MAF transfer - 90mm Lightning; SCALERS -- 194 CID, injector slope high - 48, low - 60, MAF max volt - 4.91196. There are some other minor changes, but nothing of note. I have tried different stabilized fuel tables, but the only chages I have made was to the top most table (100% load and above).

Here are my modifications:
3.2 low CR, 90mm Lightning MAF, EH intake, BBB's, 62-1 turbonetics turbo, FMIC, 190 or 255 lph fuel pump, SHOnut FPR. My last dyno, with a smaller turbo, but should give a good idea of what I am looking for:

 

[SASHO91]

your not sure on the fuel pump?? what about injectors??

i have seen a few datalogs, but, i have yet to have any experience with it... i dont think i can help you there tim, sorry.

have you tried to run the LPM with this new setup?? just to see what it would do? as its not THAT big of a jump... IMO but i could be wrong.

 

[bobreimer]

I'm sympathetic and interested to see how it goes. I have a SHO Shop LPM and a Vortech. The car runds fine, but I expect it could make more power with a custom tune. I think I'll wait and see how things work out for you.

 

[shopartsnw]

Tim,

Send the log file and your .ccf program load to me at the SHOpartsNW e-mail account.

I will take a look at it, but it is a bit of the blind leading the blind. At this point I have the cars running ok, but I still have a long way to go. I have been where you are though, so I might be able to get you at least started.

I will give you a call and try to point you through it.

- Mike

 

[Sho-Driver]

Tim, you're not data logging everything you should be to be able to analyze the data. I'll get with you off the board with a list of items that should be data logged.

 

[shomesomesho]

try lowering your breakpoint

Sounds like you are having probs at lower pulsewidths. Have you tried lowering your breakpoint to something closer to stock (e.g. 3 or 4, or even 5). It may be those big John Holmes size 48 pounders just aren't happy down there and may require the high slope number (48) over a larger range of pulsewidths.

 

[Toolman]

I tried running it once @ stock breakpoint (2.5), and I even tried running it with my high and low slopes the same.

Here is a question. Since it runs at half throttle and WOT well, what can I change to make the injectors work at part throttle? Should I disable adaptive learning? What affect would that have?

 

[shomesomesho]

I tried running it once @ stock breakpoint (2.5), and I even tried running it with my high and low slopes the same.

Here is a question. Since it runs at half throttle and WOT well, what can I change to make the injectors work at part throttle? Should I disable adaptive learning? What affect would that have?

Without looking at your logs, my uneducated guess is the problem could be with low slope or breakpoint. In which case the kamrf will be much higher or much lower than 1 in the range of part throttle pulsewidths. Have you tried a much bigger low slope, like 80 or 90?

Also, are you clearing your eec memory before each new calibration?

I don't think disabling adaptive will do any harm, but if the problem really is with slopes or breakpoint you might still have the same symptoms at part throttle. But what do I know . . . try it and see.

 

[Toolman]

Yeah, I tried a low of 100, but no go, but I may have had a 2.5 bp then. And yes, clearing mem by removing NEG cable and standing on brake for 10-15 seconds. My KAMRF values are always within the range of 0.972 - 1.0039.

 

[shomesomesho]

Tim, where can I get a copy of your .ccf file and logs?

Also, if worse comes to worse, you can send your LPM to the
twEECer team (Mike Glover, et al) and they can copy that
calibration into a .ccf file so you can examine it in
CalEdit and load it as a twEECer calibration.