When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Steve (32krazy!) and I hit the track at Beech Bend today (Bowling Green, KY). I was having crazy issues with Dyno Mode, so I had to turn it off. Even after doing so, I couldn't get the car to do a proper burnout. This manifested itself later in the afternoon causing me to continuously smoke the tires on launch.
Anyway, I was able to hook on 2 of the earlier runs which got me a 11.05 and 11.08.
Here's the 11.05 run against Steve's crazy Porsche. He was having much bigger issues than me off the line, but his trap speed was averaging around 130MPH. My best trap was 124 MPH. By the way, DA was -283' on this pass.
Thanks. The IAT's were good, but I think I might have a boost leak from looking at the logs. It's probably the O-ring seal in the pipe that leads from the turbo to the intercooler. Hopefully the o-ring can be sourced separately.
Matt - Does the timing and boost drop look comparable to what you're seeing in your logs? I expect boost to drop with RPM, but not sure if my curve is normal. The 3rd gear data points below are from two of my runs yesterday.
I wish I could help, but to be honest I haven't datalogged a pass yet. I was going to use my laptop and datalog with the eurocharged software, but when I tried to test it out I couldn't review the logs so I decided I needed a dashdaq or other system and I just never got around to it this year, sorry.
With trying to expand my business this winter I'm not sure if the CL is going to get any love at all so it may be running the exact same setup next year as I did this year. Wish I could help more.
Matt - Does the timing and boost drop look comparable to what you're seeing in your logs? I expect boost to drop with RPM, but not sure if my curve is normal. The 3rd gear data points below are from two of my runs yesterday.
Hi,
boost-drop in your logs is normal for a ECU-tuned 65 with OEM-turbos. Around 15 PSI (boost) 29,7 PSI (absolute pressure) at redline is what you get from a good tune with stock turbos.
I wish I could help, but to be honest I haven't datalogged a pass yet. I was going to use my laptop and datalog with the eurocharged software, but when I tried to test it out I couldn't review the logs so I decided I needed a dashdaq or other system and I just never got around to it this year, sorry.
With trying to expand my business this winter I'm not sure if the CL is going to get any love at all so it may be running the exact same setup next year as I did this year. Wish I could help more.
No problem. Thanks anyway Doc.
Originally Posted by AMG-Driver
Hi,
boost-drop in your logs is normal for a ECU-tuned 65 with OEM-turbos. Around 15 PSI (boost) 29,7 PSI (absolute pressure) at redline is what you get from a good tune with stock turbos.
Thanks. How's the timing look to you? Conservative??
What type of problems did you have with dyno mode? If you do a burnout and return it to 1M the tranny will automatically upshift in our cars at red line. If you put it back in drive some times it goes crazy and goes into limp mode. I had issues a few times and found out leaving it in manual mode works the best. It seems to be trapping a little on the low side but nice ET with a slower trap. When you removed the air boxes to run the intake tubes, did you remove the sensors from the airboxes or unplug them? If they are unplugged you may get a CEL but removing and leaving them plugged in doesn't affect anything. Good luck.
What type of problems did you have with dyno mode? If you do a burnout and return it to 1M the tranny will automatically upshift in our cars at red line. If you put it back in drive some times it goes crazy and goes into limp mode. I had issues a few times and found out leaving it in manual mode works the best. It seems to be trapping a little on the low side but nice ET with a slower trap. When you removed the air boxes to run the intake tubes, did you remove the sensors from the airboxes or unplug them? If they are unplugged you may get a CEL but removing and leaving them plugged in doesn't affect anything. Good luck.
In dyno mode, as soon as I tried to do a burnout it would close the throttle and kill power. Then when I would try to put the car in 1st manually it wouldn't change out of D. It was very strange. I'm going to pull codes tonight with DAS and see if there's anything worth mentioning. The other odd thing is it wouldn't pick up tire speed during the burnouts. Maybe there wasn't enough water down for the burnout, or the car is acting up.
As for the sensors, I removed them from the stock air boxes and reconnected them.
Out of 7 runs I only had two trap speeds of 124 (124.38 and 124.00) and there were three in the 122's. I spoke with Tony at BIP today and he is going to add a little more initial boost and maybe a degree or two of timing. He thinks the slow burn of the MS109 didn't do me any favors.
By the way, my first two runs I had a trap of 119! WTF!! I started looking over the car after the second slow run and realized I only had 10 psi in the drag radials At this point I aired them up to 18 psi, added the MS109, and installed Doc's intake. On the next run my trap speed increased 5 MPH to 124. Crazy! I think the biggest impact was the tire pressure, but who knows.
Can I see the afr? The timing can be upped a little with ms109
Unfortunately I've not installed my wideband yet since I've had it dyno'd a couple times to confirm a safe AF. As for the MS109, I'll definitely need to counter the slow burn with more timing if I'm going to make power with it.
By the way, are you the same "Hulk" from over on the LXForum?
Thanks. How's the timing look to you? Conservative??
Hi Anthony,
yes I think timing is a little bit on the conservative side.
But these ECU's are very smart. Even if you add some degrees of timing in the map - as soon as some little knock is detected or IAT went too high etc. the timing will be retarded.
I'm sure every tune is different, but my ECU seems to adapt very well at the track when adding ms109. MPH in good weather always over 125. Usually 1-2 runs for the car to realize its at the track then its all business.
GRIP GRIP you and I have the same problems with burnouts. I CANT DO a burnout for the life of me in my car, in dyno mode my car gets all funky and doesn't move out of D either. It really sucks because how the hell are we suppose to warm up our tires. Why can some of the amg models do burnouts no problem but others cant?
How do you turn off "Traction Control" and though off, does it continue to linger in the background? This is the case with Jaguar. Perhaps with Benz too?
I know you and Steve are friends and all, but you'd think he'd learn not to line up with you. He can be 1000 lbs. lighter and have 200 more hp and he still can't beat you to the end of the 1/4 mile. Me thinks your a darn good quarter miler and Steve is a glutton for punishment.
I know you and Steve are friends and all, but you'd think he'd learn not to line up with you. He can be 1000 lbs. lighter and have 200 more hp and he still can't beat you to the end of the 1/4 mile. Me thinks your a darn good quarter miler and Steve is a glutton for punishment.
Les
its a combo of both! of course grip would never show the only video that we both had a good launch and i killed him!! its always good to have a race buddy who is a great racer that allows one to elevate the game
By the way, my first two runs I had a trap of 119! WTF!! I started looking over the car after the second slow run and realized I only had 10 psi in the drag radials At this point I aired them up to 18 psi, added the MS109, and installed Doc's intake. On the next run my trap speed increased 5 MPH to 124. Crazy! I think the biggest impact was the tire pressure, but who knows.
You answered the 1st low traps Q w/10 psi in drag tires.. Now adding 109 to your 1/4? 1/8? Tank of reg pump gas, at least in all my exp messing w109 dyno tuning etc you need to drive at least 3-5 miles around on it for it to properly adapt. You'll easily see 20-25 rwhp w/out tuning on the M275 platforms & 35-40 when tuned for it
W/that great DA/cool air & your mod list, you should've been @ 126-127 mph... Edit: Viewed your vid w/slip, you're low end thru 1st 1/8's on PAR, though you're deff loosing hp on big end. You only gain 23.88 mph in last 1/8th mi.. You should see 25-26+ mph at the very least..
its a combo of both! of course grip would never show the only video that we both had a good launch and i killed him!! its always good to have a race buddy who is a great racer that allows one to elevate the game
this is true until you see cameros and mustangs running 9's at the same trap speed! working on the launch issues hopefully on the 22 i can rejoin the 10 sec club
Steve is correct. He won fair and square on two runs. On one I red lighted by .152 and and was ahead by .78 seconds. On the other run I smoked the tires running a slow 11.7 loosing to Steve with a 11.68. On the run where I hooked, I killed the beast with a margin of victory .63 seconds (a couple bus-lenghts ). However, we're both having issue. Steve should be running low 10's and I should be running high 10's. Hopefully we both figure out our issues and make some clean runs. If Steve could just get the Porsche to launch properly he'd likely be winning most runs.
If I was trapping 127-128 as I should and Steve was launching properly, we'd be having some great runs. Regardless, it's all in fun.
11-01-2014, 07:46 PM
its always good to have a race buddy who is a great racer that allows one to elevate the game
