I try not to post to much since I like to search and figure things out, but this is killing me.

Ever since It's gotten cold out my AF's have gone way up. I started to run 12.8 at one point. So I decided to add some more fuel in the boost column when I realized I'm almost maxxing out my injectors!!

Here's my setup:
B18b1
t3/t04e .63/.60 57trim
DSM 450cc
Walbro 255lph HP
JRC 6" IC
3" full exhaust

Uberdata 1.8

my map

I think that's all you need to get an idea of the setup (tell me if you need more)

Tell me what you think of my map BTW and the ignition as well. I think it's all pretty conservative, but the wideband is saying that I am leaning out up to 12.8 in 8PSI boost. Also I think my fuel pressure is a little higher because of the stock FPR and in idle i run really rich unless I take out a lot of fuel. One last question. I thought duty cyle was 100%=800, but when you switch from grid to duty cycle the numbers just don't match. If this interpretation is wrong please tell me otherwise I found another bug . Any advice/flames/comments are encouraged. Thanks

 

how much power you putting down? 1/4 mile? full interior? curious...

 

What are you controlling boost with? Are you sure it's only 8psi and you're not really maxing out your map sensor which would read as only 8psi?

 

full interior and I'm guessing with the conservative timing that you see it's prolly around 230-250 whp. 1/4 mile I have no idea, I will once I get this problem solved . I really shouldn't be maxxing out my injectors yet. I know they only go to about 280whp, but I know I'm not throwing that down !

Boost gauge and Uberdata is reading 8psi. Spring controlled at 7.25

 

I am also in illinois and running dsm 450's Mine are about maxed out according to uber, but remember the dudy cycle in uberdata is off, 100% is really like 80%. I havne't been running lean in boost at all, but at idle my car has been running lean as hell from 16-20?! However, I also have a small exhaust leak before the o2 sensor, so that might be throwing my wideband off...

 

That's very weird? Mine is a hell of alot leaner(map wise) than yours and it has been running fine. The A/F ratio went from 12.0's to 12.1-12.2 w/ the colder denser air but, not any leaner than that in boost. I can PM you my .bin to take a look at.(It's 1.66 though.) By the way, I was doing some tuning w/ 1.8 this weekend and the StockLS.bin was not working very well in 1.8 That may have something to do w/ it.

Phil

 

yeah stockls.bin doesn't work if you open it in versions 1.7 and above. You have to open StockGSR.bin then import StockLS.bin and it'll work fine.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by adseguy &raquo;</TD></TR><TR><TD CLASS="quote">yeah stockls.bin doesn't work if you open it in versions 1.7 and above. You have to open StockGSR.bin then import StockLS.bin and it'll work fine.</TD></TR></TABLE>

Thanks for the info and you have PM's and an E-mail. Please be curtious

Phil

 

Im sorry to tell you, but theres a good chance that you are just over running your injecters. For the dsm community, we start to run out of fuel with stock injeters at 250 fwhp. You might be able to make more power with them but your safty margin is gone or your using race gas and maybe a big front mount. The most Ive seen out of 450s is about 278. 2 awhp and I was told he was at 120% duty cycle. If I was you I would just get bigger injecters.

 

If I were you, I'd switch back to 1.7 in a hurry.
See UD board.

 

Alright well I reverted back to 1.66 (no datalogging of course). I was doin some test runs and i am no longer running lean , but I am having 90% duty cycle at 7k RPM so I still gotta find out the problem.

question: It was pretty cold out tonight and I did a full boost run when I noticed my boost gauge at 12PSI !!! I have never ever had a spike before, so I pulled over and the Wastegate was very cold. Can the spring get cold and cause boost spikes or hold a higher boost setting because of the cold weather?

 

the DUTY CYCLE graph on UD un accurate. Dont mind it... But yes, get a wideband in that sucka and see it first! I ran 3 months on a basemap, yes...no problem!

But, i found out i was in the high 13's AFR in boost! later on.. YIKES!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by adseguy &raquo;</TD></TR><TR><TD CLASS="quote">
question: It was pretty cold out tonight and I did a full boost run when I noticed my boost gauge at 12PSI !!! I have never ever had a spike before, so I pulled over and the Wastegate was very cold. Can the spring get cold and cause boost spikes or hold a higher boost setting because of the cold weather?</TD></TR></TABLE>

I have been having the same problem as well. MIne only spikes up to about 10.8x psi. I havbe my boost cut @ 11 psi . I am unsure of the cause but, just letting you know so, you don't feel left out

Phil

 

i was told by bigwig that the duty cycle on uberdata is off. You really aren't maxing out when it reads 100%

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blundar &raquo;</TD></TR><TR><TD CLASS="quote">If I were you, I'd switch back to 1.7 in a hurry.
See UD board.</TD></TR></TABLE>

Why, I didn't see anything on the board, and 1.8 is running my car ok

 

yea, why when you add more fuel over 100 percent, you keep getting richer?

because the percetages are off. Now go to the uberdata forum and see what they have to say.

 

Does anyone know why Dave thinks 1.8 is bad? I did some of the testing for Blake on 1.8 and I haven't found any major issues??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by toolowsol &raquo;</TD></TR><TR><TD CLASS="quote">Does anyone know why Dave thinks 1.8 is bad? I did some of the testing for Blake on 1.8 and I haven't found any major issues??</TD></TR></TABLE>

Some people are having problems and some aren't. Someone on the UD board complained of timing issues. I personally had a few issues w/ 1.8 this weekend. 1.8 is bad.........badass that is. It will just take a little time for the bugs to be worked out. I have faith and I am sure you do to!

Phil

 

Yea I've been running on 1.7 for almost 6 months now and I have DSM 450cc and my a/f is at 11.8-12.2 all the way to redline at 6psi, but this is on a supercharger tho

 

The timing issues were had by blundar (i think), who is a mod on many forums, so the problem is probably legit. I think he converted maps or maybe something happened with obd2-1 timing issue.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by adseguy &raquo;</TD></TR><TR><TD CLASS="quote"> in idle i run really rich unless I take out a lot of fuel. </TD></TR></TABLE>

Oh, no. Heaven help you if you should have to tune your goddamn idle. I AM SO SORRY YOU HAVE TO TUNE YOUR GENERIC BASEMAP.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by toolowsol &raquo;</TD></TR><TR><TD CLASS="quote">Why, I didn't see anything on the board, and 1.8 is running my car ok</TD></TR></TABLE>

Go back to UD forum, see why 1.8 is still a very early beta, and why you should run 1.70 for anything other than test purposes. Advocating the use of early betas over proven software = assinine.

 

WHY, lol, I've been on the uber board, I don't see anything that bad about 1.8. Can someone link me to a thread? There is nothing in the 1.8beta thread, nothing that hasn't been an issue in 1.7 anyways. What specifically is the problem.

 

yes their is an issue, I think it is the second page of the 1.8 thread. Look for blundar's post it start with like a caution to it. Like danger danger danger!

http://www.ecimulti.org/uberda...rt=30

links are good

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93turbo16 &raquo;</TD></TR><TR><TD CLASS="quote">
links are good </TD></TR></TABLE>

Truly!

http://www.ecimulti.org/uberda...=2339

 

so how new is that rule? haha Uberdata forum is way better for info on uberdata anway, why would someone ask here?