Better than Dawes, EBC, Superchip....
20 April 2002, 09:08 PM
#182
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I found that jiggling the drill didn't really work, it wasn't accurate enough, or rather I wasn't, so I bought some drill bits.
John I've got some 1.1mm and 1.15mm drill bits if that would be any use to you. I'm using a 1.15mm restrictor at the moment which is giving about 1.2 Bar, 17.4 PSI on my car (non PPP). A 1.1mm restrictor gives 1.3 Bar, just a little too much, I really want 1.25 Bar. This is with the actuator as standard, I'm going to tweak it again and see if I can get it to about 18 PSI. That last bit does make a difference doesn't it
John I've got some 1.1mm and 1.15mm drill bits if that would be any use to you. I'm using a 1.15mm restrictor at the moment which is giving about 1.2 Bar, 17.4 PSI on my car (non PPP). A 1.1mm restrictor gives 1.3 Bar, just a little too much, I really want 1.25 Bar. This is with the actuator as standard, I'm going to tweak it again and see if I can get it to about 18 PSI. That last bit does make a difference doesn't it
20 April 2002, 10:00 PM
#183
John
1st question. Are you married? How do you manage to get so much time to play with your car?
2nd Q. Why don't you use a variable restrictor (fish tank stylee) to get the right restriction rather than drill small holes?
3rd Q. TEK 3, is this the bespoke map jobbie at PE? Long drive for you then...
I just like to thank you for getting me to build the EGO guage. It's just been completed and ready to fit although when I tested it only one LED came on - I hadn't connected all the LEDS together!
My wife sorted this out for me....
F
1st question. Are you married? How do you manage to get so much time to play with your car?
2nd Q. Why don't you use a variable restrictor (fish tank stylee) to get the right restriction rather than drill small holes?
3rd Q. TEK 3, is this the bespoke map jobbie at PE? Long drive for you then...
I just like to thank you for getting me to build the EGO guage. It's just been completed and ready to fit although when I tested it only one LED came on - I hadn't connected all the LEDS together!
My wife sorted this out for me....
F
20 April 2002, 10:17 PM
#184
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Yes married. And studying for an exam in 10 days Should do some work, but I always cram at the last minute. The official answer is I have been studying for it for six months 
But really I have been tinkering with the car - much more fun
I'm going to slam the Dawes back on because I have new boost control requirements prior to Tek 3 - ie I do not want a tapering duty cycle as my plans will need rather more boost 5000-7000 RPM which would involve silly midrange boost to get with the factory boost controller using this method so I will use the Dawes. I do have a valve and it works well, but again boost will taper with the FBC or using it alone it will spool up slowly.
I found the drill jiggling is inaccurate too. But for some reason I am getting 17 held with 18 peak, and occasional peaks to 20 for some odd reason which I can't fathom. May be the AE801 ECU behaves differently to the PPP.
The Dawes will be easiest to fiddle with meantime as I haven't got more time to fiddle.
Should do some work, but I always cram at the last minute. The official answer is I have been studying for it for six months But really I have been tinkering with the car - much more fun I'm going to slam the Dawes back on because I have new boost control requirements prior to Tek 3 - ie I do not want a tapering duty cycle as my plans will need rather more boost 5000-7000 RPM which would involve silly midrange boost to get with the factory boost controller using this method so I will use the Dawes. I do have a valve and it works well, but again boost will taper with the FBC or using it alone it will spool up slowly.
I found the drill jiggling is inaccurate too. But for some reason I am getting 17 held with 18 peak, and occasional peaks to 20 for some odd reason which I can't fathom. May be the AE801 ECU behaves differently to the PPP.
The Dawes will be easiest to fiddle with meantime as I haven't got more time to fiddle.
21 April 2002, 10:39 PM
#188
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Wow John, you sold your PPP 
Its been great reading about how it compared with the 'standard' ECU running the Dawes
So, you're going for one of these Teken3 ECUs then...what boost will you be running with your FCD ?
Its been great reading about how it compared with the 'standard' ECU running the Dawes
So, you're going for one of these Teken3 ECUs then...what boost will you be running with your FCD ?
22 April 2002, 11:27 AM
#192
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Location: Leeds - It was 562.4bhp@28psi on Optimax, How much closer to 600 with race fuel and a bigger turbo?
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like that is it... cant check home mail from work as I have left outlook open and it downloads my mail... doh...
Assuming its what I think it is then Ill post it tonight.
David
Assuming its what I think it is then Ill post it tonight.
David
25 April 2002, 01:16 PM
#195
John,
On your origional 'twin LMC7111' circuit, the + and - on the devices do refer to the Non Inverting and Inverting inputs don't they. And there's nothing strange going on with the supply rails to the chips.
i.e Power is supplied direct for 1 LMC7111 and via the 4K7 POT for the other, both are then joined via their respective Gorund pins.
It's just that I can't get the damn circuit to latch succesfully.
The board is starting to get in a bit of a mess now, so I may have to re-do it yet again.
(am trying to get it working, so that I can add the 12V regulator for the 10V supply modification)
[Edited by Scott.T - 4/25/2002 1:17:19 PM]
On your origional 'twin LMC7111' circuit, the + and - on the devices do refer to the Non Inverting and Inverting inputs don't they. And there's nothing strange going on with the supply rails to the chips.
i.e Power is supplied direct for 1 LMC7111 and via the 4K7 POT for the other, both are then joined via their respective Gorund pins.
It's just that I can't get the damn circuit to latch succesfully.
The board is starting to get in a bit of a mess now, so I may have to re-do it yet again.
(am trying to get it working, so that I can add the 12V regulator for the 10V supply modification)
[Edited by Scott.T - 4/25/2002 1:17:19 PM]
25 April 2002, 03:43 PM
#196
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Location: Leeds - It was 562.4bhp@28psi on Optimax, How much closer to 600 with race fuel and a bigger turbo?
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Scott Ill post you those bits from farnell tonight as I have them all now..
David
David
25 April 2002, 04:50 PM
#199
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Scott power to the lower LMC7111 is from the centre tap of the 4K7 AND the output of the upper LMC7111 through the diode. Grounds are common.
25 April 2002, 04:54 PM
#200
I've just re-laid it out, see if you can spot any errors :
The Tracks run North/South.
Viewed from the Component Side.
Track Cuts, are Grey Squares
Solder joints are Black.
THIS CICRUIT IS PROVEN FOR POST 96' CARS (SET STEP-IN AT AROUND 3.4V, STEP-OUT AT 4.2V),THIS WILL ALLOW THE ACTUATOR TO BE ADJUSTED TO 18PSI MAX.
FOR PRE 96' ADD AN MC78L09ACP, 9V REGULATOR FOR THE INPUT VOLTAGE WITH A 0.1UF AND 0.33UF CAPACITOR BETWEEN TH EPOWER RAILS AND GROUND (SET STEP-IN AT AROUND 4V, STEP-OUT AT 4.8V), THIS WILL ALLOW THE ACTUATOR TO BE ADJUSTED TO 17PSI MAX.
[Edited by Scott.T - 5/1/2002 8:25:46 PM]
The Tracks run North/South.
Viewed from the Component Side.
Track Cuts, are Grey Squares
Solder joints are Black.
THIS CICRUIT IS PROVEN FOR POST 96' CARS (SET STEP-IN AT AROUND 3.4V, STEP-OUT AT 4.2V),THIS WILL ALLOW THE ACTUATOR TO BE ADJUSTED TO 18PSI MAX.
FOR PRE 96' ADD AN MC78L09ACP, 9V REGULATOR FOR THE INPUT VOLTAGE WITH A 0.1UF AND 0.33UF CAPACITOR BETWEEN TH EPOWER RAILS AND GROUND (SET STEP-IN AT AROUND 4V, STEP-OUT AT 4.8V), THIS WILL ALLOW THE ACTUATOR TO BE ADJUSTED TO 17PSI MAX.
[Edited by Scott.T - 5/1/2002 8:25:46 PM]
29 April 2002, 01:24 PM
#205
I can confirm that my above layout works a treat.
And will work for MY98-MY00 (if it uses a 3 BAR absolute MAP sensor).
This circuit will fit into a 50X35X17 box (Farnell Pt.No 353-6415), if the power and input/ouput signals are moved up a row or 3.
In my case I need it to run on an MY94 which uses a 2 BAR absolute(ish) MAP sensor, which runs at slightly higher voltages.
This was done by supplying 10V to the LMC7111.
I have just set it up to run as follows for an MY94 :
Runs up to 4.1V (11.6psi) linear I/P to O/P
Step occurs at 4.1V until 4.8V (17psi)
Then will continue linear up to 10V (although you shouldn't really be seeing more than 5V, 18.5psi).
Therefore the layout just needs to include a 12V regulator (MC78L12ACP) a couple of capacitors and either another POT or a couple of resistors to bring the voltage down to 10V.
These I shall receive in the post shorlty.....
[Edited by Scott.T - 4/29/2002 1:25:45 PM]
And will work for MY98-MY00 (if it uses a 3 BAR absolute MAP sensor).
This circuit will fit into a 50X35X17 box (Farnell Pt.No 353-6415), if the power and input/ouput signals are moved up a row or 3.
In my case I need it to run on an MY94 which uses a 2 BAR absolute(ish) MAP sensor, which runs at slightly higher voltages.
This was done by supplying 10V to the LMC7111.
I have just set it up to run as follows for an MY94 :
Runs up to 4.1V (11.6psi) linear I/P to O/P
Step occurs at 4.1V until 4.8V (17psi)
Then will continue linear up to 10V (although you shouldn't really be seeing more than 5V, 18.5psi).
Therefore the layout just needs to include a 12V regulator (MC78L12ACP) a couple of capacitors and either another POT or a couple of resistors to bring the voltage down to 10V.
These I shall receive in the post shorlty.....
[Edited by Scott.T - 4/29/2002 1:25:45 PM]
29 April 2002, 01:55 PM
#206
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Oh guys not again.....
With John's info and Scott's understandable (to me) diagrams, I can see another trip to Maplin in the very near future and more tutting from my good lady
Thanks for the top work chaps. It's great that people like you can put it into laymans terms for us dummies
Off to make a list of components.....
With John's info and Scott's understandable (to me) diagrams, I can see another trip to Maplin in the very near future and more tutting from my good lady
Thanks for the top work chaps. It's great that people like you can put it into laymans terms for us dummies
Off to make a list of components.....
01 May 2002, 02:13 PM
#208
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Scott is that a hint at me?? You should get the parts today / tomorrow...
Ive been busy at home and at work so hadnt had time to post..
David
Ive been busy at home and at work so hadnt had time to post..
David