First data log
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First data log
I just got my first set of data from forscan lite and was hoping for a quick analysis.
E99 zf6, stock except for 6637 and TS 6 position set on 75 hp.
3rd gear pull resulted in steady 2450 Icp, high 30s ipr, 3.37 ms pw, and a whopping 14 psi of boost. I disconnected and plugged the red hose and it repeated the numbers exactly.
Low boost, no response to red line removal, and some soot on the back of the motor I assume means likely up pipe leak? Any chance a waste gate adjustment might pick up some psi?
How do the other numbers look?
EBP was a low number (~5 psi) that occassionally spikes towards 50 psi. Boost seems to drop a tiny bit during the EBP spikes. Data glitch or does this mean something?
E99 zf6, stock except for 6637 and TS 6 position set on 75 hp.
3rd gear pull resulted in steady 2450 Icp, high 30s ipr, 3.37 ms pw, and a whopping 14 psi of boost. I disconnected and plugged the red hose and it repeated the numbers exactly.
Low boost, no response to red line removal, and some soot on the back of the motor I assume means likely up pipe leak? Any chance a waste gate adjustment might pick up some psi?
How do the other numbers look?
EBP was a low number (~5 psi) that occassionally spikes towards 50 psi. Boost seems to drop a tiny bit during the EBP spikes. Data glitch or does this mean something?
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Quick update.
I cranked the waste rod gate about halfway down and made a few pulls on the highway.
Boost gauge on forscan still stopped at 28.4, BUT, the smoke show went away which was the main reason i was trying to turn the boost up a little. Truck also felt a little stronger. Weird??
So I tried the other available gauges. First thing I found was an EBP gauge that looked better. Held about boost + 4 psi, except it kept climbing when boost stopped at 14. Hmmm?
So I tried the map sensor voltage gauge. Lo and behold if it doesn't keep on climbing when the boost reading stops. I got a solid 4.3 volts and pretty sure I even noticed 4.5 although I can't find it in the log.
Some quick research shows this is probably mid to high 20s on boost. Oops! I will be cranking her back down as soon as it cools off a little. Not trying to break the thing, just though it must've been a touch low on boost based on the amount of smoke I was getting at 75 hp compared to what everyone else claims.
Thinking I'll shoot for about 4 volts max?
I cranked the waste rod gate about halfway down and made a few pulls on the highway.
Boost gauge on forscan still stopped at 28.4, BUT, the smoke show went away which was the main reason i was trying to turn the boost up a little. Truck also felt a little stronger. Weird??
So I tried the other available gauges. First thing I found was an EBP gauge that looked better. Held about boost + 4 psi, except it kept climbing when boost stopped at 14. Hmmm?
So I tried the map sensor voltage gauge. Lo and behold if it doesn't keep on climbing when the boost reading stops. I got a solid 4.3 volts and pretty sure I even noticed 4.5 although I can't find it in the log.
Some quick research shows this is probably mid to high 20s on boost. Oops! I will be cranking her back down as soon as it cools off a little. Not trying to break the thing, just though it must've been a touch low on boost based on the amount of smoke I was getting at 75 hp compared to what everyone else claims.
Thinking I'll shoot for about 4 volts max?
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
The tune is slightly hot, but not as bad as I've seen with taller HP tunes. 60-65 HP tunes are about max for the truck without knocking the ICP down at WOT - you shout see 3000 PSI ICP on a proper tune - but I hear tell an e99 might have slightly lower numbers.
Soot belongs absolutely nowhere forward of the open hole on the exhaust. You likely have an exhaust leak, so the crystal ball shows a soot safari in your future.
Boost should land somewhere around 18 PSI with stock tuning on a 100% truck. Disconnecting the line should not lower boost that much, but it does need to be capped. I had 22 PSI boost with the red line mod and stock tuning on a mostly-stock truck.
As for stressing the turbo with too much boost - 25-28 PSI is not abnormal with tuning. I've had mine jacked up to 30-32 PSI before the intake plenum seal blew out (in my stock hardware days). I do not suggest crowding 30 PSI on a stock turbo as I have.
Soot belongs absolutely nowhere forward of the open hole on the exhaust. You likely have an exhaust leak, so the crystal ball shows a soot safari in your future.
Boost should land somewhere around 18 PSI with stock tuning on a 100% truck. Disconnecting the line should not lower boost that much, but it does need to be capped. I had 22 PSI boost with the red line mod and stock tuning on a mostly-stock truck.
As for stressing the turbo with too much boost - 25-28 PSI is not abnormal with tuning. I've had mine jacked up to 30-32 PSI before the intake plenum seal blew out (in my stock hardware days). I do not suggest crowding 30 PSI on a stock turbo as I have.
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Thanks Tugly. I put the waste gate pretty close to stock setting. A little more smoke but slightly lower map At wot. I just didn't like EBP going over 50 psia when I had it cranked up.
Disconnecting the red hose doesn't reduce boost, it just stays the same.
What I failed to realize at first was that the TS changes the map calibration. If I go back to the stock tune, the map maxes out at 3.58 volts and it shows 15 psi. In 75 hp anything from 3.5 volts up to 4.5 volts shows 14 psi.
So that's where I got a little lost in the beginning.
Now I'm a little confused about Icp and ipr.
I have yet to see ipr exceed 37%. Why does The chip not try to increase Icp since their is plent of ipr dc% left?
Even more perplexing is the 140 hp tune. Ipr maxes out around 25%?!?!?
I did find the ipr plug melted. Taped it up best I could until the new connector shows up in a few days. Interested to see if that changes anything, couldn't tell if it was shorting at all and didn't think to ohm it out. Truck runs about the way I would expect, just a little surprised by the data.
Disconnecting the red hose doesn't reduce boost, it just stays the same.
What I failed to realize at first was that the TS changes the map calibration. If I go back to the stock tune, the map maxes out at 3.58 volts and it shows 15 psi. In 75 hp anything from 3.5 volts up to 4.5 volts shows 14 psi.
So that's where I got a little lost in the beginning.
Now I'm a little confused about Icp and ipr.
I have yet to see ipr exceed 37%. Why does The chip not try to increase Icp since their is plent of ipr dc% left?
Even more perplexing is the 140 hp tune. Ipr maxes out around 25%?!?!?
I did find the ipr plug melted. Taped it up best I could until the new connector shows up in a few days. Interested to see if that changes anything, couldn't tell if it was shorting at all and didn't think to ohm it out. Truck runs about the way I would expect, just a little surprised by the data.
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
There is "absolutely" no harm in running the EBP to 50 PSI, because the reading is absolute. That means it's reading about 14 PSI just for the atmospheric pressure, the same way your stock MAP does. So... when your EBP read 50 PSI, that really meant 36 PSI above atmospheric. I would roll with that number without blinking - it prevents coal and lowers your EGTs.
Your tunes suck. I'd yank the chip and have it reburned by somebody who knows what they are doing - like Matt @ Gearhead or Brian @ BTS. Since the introduction of Hydra, many have been on a Gearhead bender - but Brian is not so busy with tunes, and he does a fantastic job with the TS chip. I'd get a tow tune, a warm-up tune if you live in a cold climate, and a 60-65 HP Daily Driver tune. Anything hotter than that is quite literally just smoke and mirrors.
Your tunes suck. I'd yank the chip and have it reburned by somebody who knows what they are doing - like Matt @ Gearhead or Brian @ BTS. Since the introduction of Hydra, many have been on a Gearhead bender - but Brian is not so busy with tunes, and he does a fantastic job with the TS chip. I'd get a tow tune, a warm-up tune if you live in a cold climate, and a 60-65 HP Daily Driver tune. Anything hotter than that is quite literally just smoke and mirrors.
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