Author Topic: s14a with gt3240@27psi  (Read 50340 times)

Offline s14nismo

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Re: s14a with gt3240@27psi
« Reply #45 on: February 22, 2008, 12:48:46 pm »
I had a brief look in the terminal program, Typed "Man,mlp01,mll" as you directed, the info that was displayed was;

RPM:0000 W00SFFI00 
99 -00 c0000 i0000 
clt:-40C  adv:+10   
0000 iac:000 135   

 If i clicked on the "graph" tab There was also a small graph similar to dnb's but shorter,




but i didn't know how to copy it.

Offline rob@vems.co.uk

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Re: s14a with gt3240@27psi
« Reply #46 on: February 22, 2008, 02:30:17 pm »
That's a good start.

If you type mll and keep hitting return as you crank the engine you should see a load of those info blocks come up.

I posted a VEMS fresh from a running RB25 and the test harness I made up to dnb today, it should hit his doorstep tomorrow morning and we'll get this thing sorted soon as we can.

Offline dnb

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Re: s14a with gt3240@27psi
« Reply #47 on: February 22, 2008, 02:55:07 pm »
I'll make sure I do the tests ASAP Rob.

BTW there's a command that does an automatic mll every 0.1 seconds.  I find it very useful, although I can't remember what it is...

Offline s14nismo

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Re: s14a with gt3240@27psi
« Reply #48 on: February 22, 2008, 04:31:38 pm »


BTW there's a command that does an automatic mll every 0.1 seconds.  I find it very useful, although I can't remember what it is...

This would be usefull as hitting return didnt work, i physically had to type "mll" repeatedly (while cranking), and got this;
Terminal log file
Date: 22/02/2008 - 15:17:44
-----------------------------------------------

RPM:0000 W00SFFIE1 
99 -00 c0000 i001F 
clt:-40C  adv:+10   
0000 iac:000 135   
RPM:0000 W00SB1IDD 
64 -00 c0000 i0023 
clt:-40C  adv:+10   
0000 iac:241 135   
RPM:0000 W00S7FIDB 
99 -00 c0000 i0025 
clt:-40C  adv:+10   
0000 iac:241 135   
RPM:0000 W00S80ID9 
99 -00 c0000 i0027 
clt:-40C  adv:+10   
0000 iac:241 135   
-----------------------------------------------
Date: 22/02/2008 - 15:18:12
End log file

Offline rob@vems.co.uk

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Re: s14a with gt3240@27psi
« Reply #49 on: February 23, 2008, 10:16:45 am »
I just checked the wiki trigger log page and it says:
"Continuous sending of LCD data: mdk01 every 01 second: mdf01"

The number after W shows trigger errors - which shows 0, I'm waiting on confirmation of what S and I are

W00 SFF IE1  -> W 00, S 255, I 225
W00 SB1 IDD  -> W 00, S 177, I 221
W00 S7F IDB  -> W 00, S 127, I 219
W00 S80 ID9  -> W 00, S 128, I 217

Offline s14nismo

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Re: s14a with gt3240@27psi
« Reply #50 on: March 09, 2008, 03:21:59 pm »
After some valuable help from Rob and Dave (dnb) and a test VEMS+Harness,
I have managed to finish the trigger setting and the other calibrations,
 So it was now time to connect everything and turn it over;

Hooray she fired up first time!!!!!

its very rough but definately firing on all 4 and will rev easily! Im really chuffed!

so now for the fun bit- tuning and mapping ;D

Thanks guys for all your help!
  Scott

Offline rob@vems.co.uk

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Re: s14a with gt3240@27psi
« Reply #51 on: March 09, 2008, 04:59:23 pm »
Excellent news.

If you're up for some experimentation you might like to try something that I was helping someone with yesterday with regards to start-up fuelling.

First we work out the req_fuel for your setup:

req_fuel = 6.49 * (D / N / I)
D engine displacement (cc)
N number of injectors (eg. 4 for a 4 cyl port injection)
I injector flowrate (cc/min)


Then in priming cranking afterstart for Cold cranking PW we use req_fuel x 3
and for Warm cranking PW use req_fuel x 0.7

And that seems to fire up a couple of cars quite nicely.

Offline s14nismo

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Re: s14a with gt3240@27psi
« Reply #52 on: March 09, 2008, 06:05:05 pm »
Ok rob i'll try this, its wildly overfuelling at the mo but i wont be able to get on it til later in the week, im working lates.

By the way, with the new VEMS both the coolant sensors are over reading by about 15degrees (with original VEMS they were pretty well spot on) is there a simple offset i need to change?

Offline rob@vems.co.uk

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Re: s14a with gt3240@27psi
« Reply #53 on: March 09, 2008, 07:00:35 pm »
We'll need to do a tempsensor_upload.bat to get the correct calibration sorted out.
I'll bundle up the software and write-up some notes on how to do this.

Offline s14nismo

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Re: s14a with gt3240@27psi
« Reply #54 on: March 09, 2008, 07:10:19 pm »
Cool ;)

Thanks Rob.

Offline damo_S13

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Re: s14a with gt3240@27psi
« Reply #55 on: March 12, 2008, 10:29:14 pm »
glad its all up and running hope to have mine running soon too  ;D
building vems 4age with itb powered corolla

Offline rob@vems.co.uk

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Re: s14a with gt3240@27psi
« Reply #56 on: March 13, 2008, 12:19:46 am »
okay download this:
http://www.vems.co.uk/VEMSTech/VemsMT1.1.18Good.zip

And unzip it to somewhere useful.
You can use the instructions here.
http://www.vems.co.uk/forum/index.php?topic=122.0
By default these batchfiles use com1, this can be changed by editing the files and changing the -c com1 entry to the correct com port.

Offline s14nismo

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Re: s14a with gt3240@27psi
« Reply #57 on: March 13, 2008, 09:38:02 pm »
Sorry, Excuse my ignorance but The "command line in the VEMS root directory" is that the lower window in the terminal program? ???

Offline rob@vems.co.uk

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Re: s14a with gt3240@27psi
« Reply #58 on: March 13, 2008, 10:00:56 pm »
No problem, its the command window in Windows terms, I'm showing my age (MS-DOS) and my geek credentials (UNIX) with talk of command lines...

I've modified a file to make this simple, download:
http://www.vems.co.uk/VEMSTech/tempsensor_upload2252.bat
Copy this into the top VEMS folder that contains all the other batch files like upload-firmware.bat
That should upload the correct sensor configuration

Offline s14nismo

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Re: s14a with gt3240@27psi
« Reply #59 on: March 13, 2008, 10:29:40 pm »
No problem, its the command window in Windows terms, I'm showing my age (MS-DOS) and my geek credentials (UNIX) with talk of command lines...


Oh i see!  :D

 I found a handy tool (for XP) to quickly open command windows on a file (it just adds the option in the context menu options);

http://download.microsoft.com/download/whistler/Install/2/WXP/EN-US/CmdHerePowertoySetup.exe