Evo X Logging
#316
Account Disabled
iTrader: (8)
Join Date: Sep 2007
Location: Hayward
Posts: 3,366
Likes: 0
Received 0 Likes
on
0 Posts
Don't we wish.
With the stock intake box and such it's not as bad but with other intakes it can climb a ton without moving air (IE in traffic etc)
I was just watching my MAF IAT the other day on my Viliv go to 130F in 65F ambient temps.
With the stock intake box and such it's not as bad but with other intakes it can climb a ton without moving air (IE in traffic etc)
I was just watching my MAF IAT the other day on my Viliv go to 130F in 65F ambient temps.
#317
SiC, I just tested this out and the numbers seem too low to me. The numbers I'm logging are about 10-20F above ambient, and they actually go down as rpm's rise during a WOT third gear run. This looks like it's IAT at the MAF sensor and not the intake manifold for USDM. I'm confused I have multiple logs where it drops from 90F to 80F from the beginning to the end of a WOT third gear log.
#318
Evolved Member
iTrader: (1)
Join Date: Jun 2008
Location: Kanagawa, Japan
Posts: 1,018
Likes: 0
Received 0 Likes
on
0 Posts
SiC, I just tested this out and the numbers seem too low to me. The numbers I'm logging are about 10-20F above ambient, and they actually go down as rpm's rise during a WOT third gear run. This looks like it's IAT at the MAF sensor and not the intake manifold for USDM. I'm confused I have multiple logs where it drops from 90F to 80F from the beginning to the end of a WOT third gear log.
*Edit see correction below
Last edited by SiC; Jun 14, 2009 at 08:33 PM. Reason: was a dumb answer
#319
Evolving Member
iTrader: (3)
Join Date: May 2008
Location: Utah
Posts: 472
Likes: 0
Received 0 Likes
on
0 Posts
<DataListItem DataLog="N" Color="" Display="Mode23 IAT" LogReference="Mode23IAT" RequestID="23808659" Eval="(x*1.8)-40" Unit="Deg F" MetricEval="x-40" MetricUnit="Deg C" ResponseBytes="1" GaugeMin="0" GaugeMax="255" ChartMin="0" ChartMax="255" ScalingFactor="1" Notes="" Priority="1" Visible="False" />
#320
Account Disabled
iTrader: (8)
Join Date: Sep 2007
Location: Hayward
Posts: 3,366
Likes: 0
Received 0 Likes
on
0 Posts
Manifold temp will raise during a pull, the percentage it raises during the pull will show you how well the intercooler is working, MAF will usually drop because of more fresh air hitting the front of the car.
You would sell a bizzillion intercoolers if you could make it drop the temp during a pull while still using ambient air.
#323
#324
Evolved Member
iTrader: (1)
Join Date: Jun 2008
Location: Kanagawa, Japan
Posts: 1,018
Likes: 0
Received 0 Likes
on
0 Posts
???
Manifold temp will raise during a pull, the percentage it raises during the pull will show you how well the intercooler is working, MAF will usually drop because of more fresh air hitting the front of the car.
You would sell a bizzillion intercoolers if you could make it drop the temp during a pull while still using ambient air.
Manifold temp will raise during a pull, the percentage it raises during the pull will show you how well the intercooler is working, MAF will usually drop because of more fresh air hitting the front of the car.
You would sell a bizzillion intercoolers if you could make it drop the temp during a pull while still using ambient air.
<DataListItem DataLog="N" Color="" Display="Mode23 IAT" LogReference="Mode23IAT" RequestID="23808651" Eval="(x*1.8)-40" Unit="Deg F" MetricEval="x-40" MetricUnit="Deg C" ResponseBytes="1" GaugeMin="0" GaugeMax="255" ChartMin="0" ChartMax="255" ScalingFactor="1" Notes="" Priority="1" Visible="False" />
Sorry, I didn't realize how dumb I answered the question till you pointed it out
#326
Thanks SiC! I think this worked! In a third gear WOT log, I go from 160F to 190F at 7500 rpm's. Does this sound right? Ambient temperature was mid 60's F.
Now, what is a good temperature to aim for? How hot is too hot? Should I lower my boost so the manifold temps aren't so high? After the WOT run, i was driving around for a bit and manifold temps stayed at 160F - they were around 130F prior to the WOT run.
EDIT: Here's a brief log of third gear RPM and Intake Manifold Temp on a stock GSR (peak boost of 24 psi).
Ambient Temp = 68F
2000 rpm = 155 F
3000 rpm = 160 F
4000 rpm = 170 F
5000 rpm = 177 F
6000 rpm = 181 F
7000 rpm = 186 F
Now, what is a good temperature to aim for? How hot is too hot? Should I lower my boost so the manifold temps aren't so high? After the WOT run, i was driving around for a bit and manifold temps stayed at 160F - they were around 130F prior to the WOT run.
EDIT: Here's a brief log of third gear RPM and Intake Manifold Temp on a stock GSR (peak boost of 24 psi).
Ambient Temp = 68F
2000 rpm = 155 F
3000 rpm = 160 F
4000 rpm = 170 F
5000 rpm = 177 F
6000 rpm = 181 F
7000 rpm = 186 F
Last edited by LaXGSR; Jun 14, 2009 at 10:25 PM.
#328
EvoM Guru
iTrader: (50)
I got mode23 working this evening with EvoScan on a friend's USDM Evo 10. A couple things I noticed:
- Load seemed a bit low. I'll need to see what variant of load is in the Data.xml file I downloaded.
- Logging rate was only about 100-120 values/sec. Not quite as high as I had expected. Had logging to screen and multithreading disabled.
- 12 knock counts only resulted in 2-3 deg of timing being pulled. I expected more timing to be pulled.
- Load seemed a bit low. I'll need to see what variant of load is in the Data.xml file I downloaded.
- Logging rate was only about 100-120 values/sec. Not quite as high as I had expected. Had logging to screen and multithreading disabled.
- 12 knock counts only resulted in 2-3 deg of timing being pulled. I expected more timing to be pulled.