1.2 bar tune question
#31
Three Wheelin'
here is a shot of my X50 log with Forge IC and 2 1/2 Exhaust. Top of 4th at Laguna Seca running 100 race gas. Looks like the turbos could be pushing more with the waste gate duty cycle at 92%
#32
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My comment was in general.
The results are even more messed up when you
1) outside ambient temps
2) Elevation
3) Gear driven>>3 and 4 vs 4 and 5th gear vs 5th and 6th...
4) One can run the boost request higher when running race gas.
Once one see 90% duty on the N75 the turbochargers are near peak output.. One can see that in the early RPM showing turbo lag and then up top in the RPM range.. The K16 compressor wheel will struggle to keep 1bar to 7K... Logging these values will show you what really is happening (general comment to Rennlisters)...
The results are even more messed up when you
1) outside ambient temps
2) Elevation
3) Gear driven>>3 and 4 vs 4 and 5th gear vs 5th and 6th...
4) One can run the boost request higher when running race gas.
Once one see 90% duty on the N75 the turbochargers are near peak output.. One can see that in the early RPM showing turbo lag and then up top in the RPM range.. The K16 compressor wheel will struggle to keep 1bar to 7K... Logging these values will show you what really is happening (general comment to Rennlisters)...
Last edited by Kevin; 10-30-2016 at 01:52 PM.
#34
Three Wheelin'
#35
Instructor
Thread Starter
OK...I am the OP.
I heard conflicting things, but, as the car is plenty fast, I drive it a lot (10k miles a year), it has higher mileage (126k) and I want it to last forever, I decided to return it to stock.
Kevin was helpful. Thanks.
The fact that Softronic doesn't maintain a log of the VINs they've flashed strikes me as both convenient for them and poor customer service.
With the tune, I did a number of pulls and spiked as high as 1.3 bar and stayed at 1.1 or 1.2 when accelerating.
My local dealer charged me an hour to take the 1.2 bar tune off.
Notice acceleration isn't quite as violent, but I'm sure I'll get used to it.
I heard conflicting things, but, as the car is plenty fast, I drive it a lot (10k miles a year), it has higher mileage (126k) and I want it to last forever, I decided to return it to stock.
Kevin was helpful. Thanks.
The fact that Softronic doesn't maintain a log of the VINs they've flashed strikes me as both convenient for them and poor customer service.
With the tune, I did a number of pulls and spiked as high as 1.3 bar and stayed at 1.1 or 1.2 when accelerating.
My local dealer charged me an hour to take the 1.2 bar tune off.
Notice acceleration isn't quite as violent, but I'm sure I'll get used to it.
Last edited by petron5000; 10-30-2016 at 02:22 PM.
#37
e.g. a 1.2 tune would only see *spikes* of 1.3 provided all was was "tight". even if you have a k24 equipped car? those numbers you related after flashing back to *stock* are high EVEN for a stock mapped k24 car. let alone a k16.
#38
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As 02996tt has just written, your results aren't correct.
What I would check..
Wastegate turbine housing failure>>arm siezed
Wastegate actuator failure/jambed linkage
Wastegate actuator control hose damaged or connection is off.
Aftermarket boost controller is used...
Aftermarket wastegates installed, with large aftermarket turbochargers
What I would check..
Wastegate turbine housing failure>>arm siezed
Wastegate actuator failure/jambed linkage
Wastegate actuator control hose damaged or connection is off.
Aftermarket boost controller is used...
Aftermarket wastegates installed, with large aftermarket turbochargers
#39
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Thread Starter
those numbers on a stock car at the least suggest a vac leak? since an untuned k16(?) car shouldn't boost that high; only .7 with spikes to maybe .8.
e.g. a 1.2 tune would only see *spikes* of 1.3 provided all was was "tight". even if you have a k24 equipped car? those numbers you related after flashing back to *stock* are high EVEN for a stock mapped k24 car. let alone a k16.
e.g. a 1.2 tune would only see *spikes* of 1.3 provided all was was "tight". even if you have a k24 equipped car? those numbers you related after flashing back to *stock* are high EVEN for a stock mapped k24 car. let alone a k16.
#42
Three Wheelin'
#45
yes some kind of checking necessary
as there is a 4x% discount
What items are likely the cause, intercooler connection pipes fitment? Thx