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nice e85 pull!!

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keltalon

Supporting VIP
3,476
966
Jun 29, 2003
Luthersville Ga, Atlanta, Georgia
Tell my what you think of this e85 log. The car pulls very nicely. I did notice that the 880cc injectors are maxed out its time for something bigger if i want to make more power. This pull was @25psi.
 

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Afrs look extremely rich, if they are infact in the 10.0 area. To get the power out of e85 lean it out to 12.0-12.5afr area. It should take more timing as well, but i would lean it out start there and if there isnt knock start bumping up the timing. And as you said I would buy some bigger injectors asap if you plan on staying with e85.
 
Your AEM WB is pegged, so I don't believe it. They are known to have logging issues in Link. Have you looked into the buffer circuit? I assume you are logging thru the EGR input and you need one of those to log accurately, and then its still hit or miss...I know since I have one also. But according to your frt O2 you probably were in the mid 10s.

I am running 70% pump 30% E-85 and running ~12.3 AFRs and 22-23* timing so you can get a little more aggressive with your tune and not see knock.

You have more room with those inj if you lean it out a little.

Your boost est is a little low, and your lb/min is also. You could calibrate your MAS and then pull fuel from your fuel sliders. Check out jeffgst.com for calibrating. I like to see accurate airflow numbers and then pull fuel accordingly, but to each his own.
 
Your AEM WB is pegged, so I don't believe it. They are known to have logging issues in Link. Have you looked into the buffer circuit? I assume you are logging thru the EGR input and you need one of those to log accurately, and then its still hit or miss...I know since I have one also. But according to your frt O2 you probably were in the mid 10s.

I am running 70% pump 30% E-85 and running ~12.3 AFRs and 22-23* timing so you can get a little more aggressive with your tune and not see knock.

You have more room with those inj if you lean it out a little.

Your boost est is a little low, and your lb/min is also. You could calibrate your MAS and then pull fuel from your fuel sliders. Check out jeffgst.com for calibrating. I like to see accurate airflow numbers and then pull fuel accordingly, but to each his own.



2Gs dont have the issue with needing a buffer circuit like the 1gs do. Also I dont see anything in his mod list about a aftermarket maf sensor so there should be no need for calibrating the maf. After looking at his maf settings its under-estimating airflow by 7% which would explain the low airflow readings.
 
It looks like the AEM WB is locked at 10:1A/F so I'm curious what they actually are? Looks like you could probably get a little more aggressive with the timing for one.
 
2Gs dont have the issue with needing a buffer circuit like the 1gs do. Also I dont see anything in his mod list about a aftermarket maf sensor so there should be no need for calibrating the maf. After looking at his maf settings its under-estimating airflow by 7% which would explain the low airflow readings.

Yeah wideband is broken. for some reason the car pulls a lot harder with the maf sliders where they are. I think my intercooler is restricting my airflow up top. I tried leaning it out the car knocked almost immediately so i put sliders back low. I ordered a set of pte 1200cc injectors today and a bigger front mount intercooler. we will see how this helps out.
 
You should use v3... YOu can download v3 and configure it to run in v2... Logs are way easier to look at and you can use most of the sweet things that v3 has... 880s on a BW running e85... damn son and still rich LOL.. You can def lean that out... I would take maybe 2% away and see if you get any knock.. If not try another 2%.. damn nice
 
if your at 12.0 a/f's you can run as much as 22deg of timing...you can run 24deg in the mid range but bring it back to 20-22 at redline. i like to keep my timing set in that range at full throttle, if the car will run at 12.0-12.5a/f's with out knock then thats great...if not ill run 11.5's. you make more power with timing over just a/f's. i have tuned several cars that didnt gain much power by leaning the fuel curve out and taking out timing just so i can run 12.0-12.5 a/f's.
 
You have the s256 right?
How's it working out for you?

I have the S258. Its working very well. With this turbo somethings really needs to be changed on my car to really bring out the full potentialof this turbo. With the airflow sliders unaltered I am showing around 47lbs of air being pushed and is reading 26psi of boost. Need to change:

1. Injectors
2. Intercooler
3. Replace the stock intake manifold
4. Replace the 264 cams
 
You should use v3... YOu can download v3 and configure it to run in v2... Logs are way easier to look at and you can use most of the sweet things that v3 has... 880s on a BW running e85... damn son and still rich LOL.. You can def lean that out... I would take maybe 2% away and see if you get any knock.. If not try another 2%.. damn nice

So let me understand you correctly, are you saying i can use v3 software on my laptop and use it to operate my car's v2 chip?
 
So let me understand you correctly, are you saying i can use v3 software on my laptop and use it to operate my car's v2 chip?

Yes, but you will still be limited by the V2 chip. For instance, you can still only tune the airflow sliders at 50, 150, 250, 400, 800, 1200, 1600, 2000 & 2400. With a V3 chip you can tune them at 100hz intervals...there is a LOT more sliders.

I believe fuel & timing adj go up to 10k rpm in V3, but only 8k using the V2 chip. You don't have direct access using the V2 chip...I don't think you can choose 3g or Evo Maf in V2 running V3. No load based tuning or SD.

But the program is much more user friendly. Multiple tabs open at the same time makes clicking thru logs easier, you can change the color of the graph lines and other nice features. I just started running V3 with my V2 chip this weekend and I won't be switching back. I am def going to upgrade over the winter.
 
Yes, but you will still be limited by the V2 chip. For instance, you can still only tune the airflow sliders at 50, 150, 250, 400, 800, 1200, 1600, 2000 & 2400. With a V3 chip you can tune them at 100hz intervals...there is a LOT more sliders.

I believe fuel & timing adj go up to 10k rpm in V3, but only 8k using the V2 chip. You don't have direct access using the V2 chip...I don't think you can choose 3g or Evo Maf in V2 running V3. No load based tuning or SD.

But the program is much more user friendly. Multiple tabs open at the same time makes clicking thru logs easier, you can change the color of the graph lines and other nice features. I just started running V3 with my V2 chip this weekend and I won't be switching back. I am def going to upgrade over the winter.

Thanks for the info! I got it working. I will be ordering v3 sometime this week.
 
Was this a dyno pull or a pull on the street? Reason I ask is your 70-90 seems low for 40 lb/min with everything else in the log. Then again, that may just be a product of having FWD as well. Either way, something is definitely inhibiting flow because I'm seeing similar numbers (38#/min) on an E316G, stock cams, stock 1G IM, and e85 at 24 psi and the BW S258 is a much more capable turbo with regard to airflow. I would start by just checking for boost leaks, then address the FMIC and the SMIM. Your cams would be the last thing I'd upgrade. If you're going to bigger injectors, I love my BM1450's, they idle well and will provide more fuel than I'll ever need, that's for sure. It's a nice tune but I think you have a lot more to get out of that turbo...

Todd
 
Was this a dyno pull or a pull on the street? Reason I ask is your 70-90 seems low for 40 lb/min with everything else in the log. Then again, that may just be a product of having FWD as well. Either way, something is definitely inhibiting flow because I'm seeing similar numbers (38#/min) on an E316G, stock cams, stock 1G IM, and e85 at 24 psi and the BW S258 is a much more capable turbo with regard to airflow. I would start by just checking for boost leaks, then address the FMIC and the SMIM. Your cams would be the last thing I'd upgrade. If you're going to bigger injectors, I love my BM1450's, they idle well and will provide more fuel than I'll ever need, that's for sure. It's a nice tune but I think you have a lot more to get out of that turbo...

Todd

Don't be mistaken about the 70-90 the car haul! Traction is an issue. Look at my hz sliders I have them about -10 which naturally is going to show a lower airflow on the log. I am flowing with the slider set to 0 47lbs/min.@26psi and have flowed as much as 57lbs/min at 32psi. The car runs like a champ!
 
Yeah wideband is broken. for some reason the car pulls a lot harder with the maf sliders where they are. I think my intercooler is restricting my airflow up top. I tried leaning it out the car knocked almost immediately so i put sliders back low. I ordered a set of pte 1200cc injectors today and a bigger front mount intercooler. we will see how this helps out.

Fix your wideband before you do anymore tuning!! If you knocked while on E85 you're more than likely running lean and need to richen it up badly. I've seen E85 users not get any knock til above 14's in AFR or if their running excessive timing, which you're not. Also, looking through the log you've got consistant IDC's above 100%. Look at what the front O2v does everytime you get above 100%. Upping the airflow sliders only makes your IDC's higher.

A buddy of mine did a dual pump install and didn't wire the intank pump properly therefore the bosch inline pump was trying to suck fuel through a dead pump. Needless to say he was running lean during a WOT pull. His WB would read upwards of 15:1 and still had no knock!!! The stock narrowband sensor would read down to .74v and then skyrocket south from there down to .24v because the narrowband sensor switches rapidly at 14.7v to a low voltage.

If you still have the log from when it was knocking please post it so we can see what it was doing at that particular point.

Good call on getting the larger injectors ordered! :thumb:
 
The airflow sliders are there to calibrate airflow through the MAS until BoostEst matches Boost at or right around 5500 RPM. In 3rd gear, you said you were running 25 psi and BoostEst reports 24.6 psi so your airflow sliders are where they are supposed to be, even if that's -7% on the 2400 Hz slider so your airflow is not underestimated in the log.

I wasn't trying to be critical with my last post, it is a good log but I expected more from that turbo with that kind of boost is all. I won't have my e316g forever and the BW turbos are on the short list along with Holset and possibly an FP3065 or something similar for possible upgrades next year. I really like the BW ET series and was looking to see bigger airflow numbers at 25 psi but I just don't see it from your log.

Todd
 
The airflow sliders are there to calibrate airflow through the MAS until BoostEst matches Boost at or right around 5500 RPM. In 3rd gear, you said you were running 25 psi and BoostEst reports 24.6 psi so your airflow sliders are where they are supposed to be, even if that's -7% on the 2400 Hz slider so your airflow is not underestimated in the log.

I wasn't trying to be critical with my last post, it is a good log but I expected more from that turbo with that kind of boost is all. I won't have my e316g forever and the BW turbos are on the short list along with Holset and possibly an FP3065 or something similar for possible upgrades next year. I really like the BW ET series and was looking to see bigger airflow numbers at 25 psi but I just don't see it from your log.

Todd
No offense taken:) I do know that my intercooler is a bottle neck that is why it will be changed very soon! When i pull a couple log with new cooler I will post them! Thanks.
 
Your car runs better with those airflow settings because the airflow removed is causing your car to run leaner than the stock fuel table dictates. Your airflow table works in conjunction with the fuel table to determine AFR.

Based on boostest, you should be pulling -3% airflow around 5500 RPM to compensate, putting you at a corrected 43 lbs/min. Your 70-90 by my count is around 1.8-1.9 secs. The airflow and 70-90 time correlate very well with each other.
 
Your car runs better with those airflow settings because the airflow removed is causing your car to run leaner than the stock fuel table dictates. Your airflow table works in conjunction with the fuel table to determine AFR.

Based on boostest, you should be pulling -3% airflow around 5500 RPM to compensate, putting you at a corrected 43 lbs/min. Your 70-90 by my count is around 1.8-1.9 secs. The airflow and 70-90 time correlate very well with each other.

Thanks. Here is a new log with the 1200cc injectors in and bigger intercooler. The car is a monster:D Traction is certainly an issue even in 4th gear. I am very satisfied.:cool:
 

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