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Grant RS2000

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grant
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RE: Grant RS2000 2005/08/04 13:38:21 (permalink)
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Few $$ later got the intake sorted out, need to find a smaller pod filter now because current one wont fit through the gap under the nosecone heres a pic

Download Attachment: Intake(Medium).JPG
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Andrew
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RE: Grant RS2000 2005/08/04 14:01:29 (permalink)
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its all looking good!!
where did you get that pipe from? i quite like the idea of having cooler air, my filter is attached just in front of the throttle body...
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grant
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RE: Grant RS2000 2005/08/04 14:22:53 (permalink)
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Andrew,
Got it from house of hoses, was $18 for a metre. I got a rubber 90 degree bend from diesel spares for $16 as well, just got dremil onto that plate at the top and it basically pulls out with a few bends, jammed the rubber bend in there now just plug up the hoses.

I was going to run just an air vent into the engine bay but then decided to run the filter outside, to give a little extra room.

You dont have to do any major cutting to do this either, just hit the bit of weld then it comes out, so it can be easily put back in the car in the future.
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grant
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RE: Grant RS2000 2005/10/04 18:56:08 (permalink)
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Got a filter and fitted. ironing out a few bugs still.
Got a few more laps in paddock done doing a bit of tuning, however paddock isn't coping too well . Got it running a bit better and took for a drive up the road however it only runs at "paddock" speed up the road as thats all its tuned for [88].
Still got a fair bit of tuning to do but im on track now.

Problems with the coolant temp sensor its a different resistance then what i need ie bosch parts, wired a resistor into the circuit which brought the resistance to where i need however as its a moving resistance i need a varying resistor etc etc so that plan fell on its arse. At the moment i just have it locked to "think" its warm. Working on this problem.
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Phil
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RE: Grant RS2000 2005/10/04 20:17:02 (permalink)
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Sounds like you've got it all sussed Grant!,How far is the cossie transplant from happening?
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grant
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RE: Grant RS2000 2005/10/04 20:39:31 (permalink)
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quote:
Originally posted by Phil
[br]Sounds like you've got it all sussed Grant!,How far is the cossie transplant from happening?



HAHAHA! Good joke Phil. So far Powerball, Gold lotto tickets haven't worked .
Nah the main issue is finding a house, once that is out of the way then it will start. Worst thing is the gold lotto is just for the house.
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RE: Grant RS2000 2005/10/04 21:26:26 (permalink)
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I know the feeling[:p][;^)]
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grant
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RE: Grant RS2000 2005/10/04 22:44:05 (permalink)
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Another thing, ie Andrew read this.
With the aux air valve im using, i had it tucked under the plenum, it also has air going through it so it stays pretty cool. The problem i found was it wasn't getting hot enough under there, as once you turn the engine off it will cool very quickly, then when you try and crank the engine again ( when its hot) the air valve will have cooled and is sucking in more air again, but the problem is the coolant temp will be at 71degrees etc (warmed running temp) and it switches off the power to the air valve so the valve can't close as it has no power any more and its only going to open more as the air dragging through it is cooling it down more and more.
So it's now bolted onto the extractor side of the tappet cover on an alloy plate so it remains hot when the engine is off. I'll get a photo tomorow.
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Andrew
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RE: Grant RS2000 2005/11/04 01:03:14 (permalink)
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Grant are you using a bosch fast idle auxillary air valve? if so they were designed to run independant of the computer, and would work as yours appears to on engine bay temperature and would create the situation you described if hooked up to the ms. if you want to use the computer to control the aux air valve you need one which is just an on off vacuum switch.. it should be independant of temperature under the hood etc wired in so that when it recieves power from the ms (warmup), it is open.. otherwise its shut - the ms controls it based on coolant temp.


Download Attachment: bosch-idle.jpeg
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grant
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RE: Grant RS2000 2005/11/04 07:51:24 (permalink)
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Andrew thats the one. The MS coolant vairables control whether or not the fast idle is activated, and once it hits warmup it throws out the switch in the relay board turning off the power to the aux air valve. If you've got it wired up independant theres going to be power to it all the time, it requires ms to tell it when to turn off, then once it is turned off the actual heat not power keeps it closes.
This was taken off an alfa, and from it they are bolted to the alloy tappet cover which transmits a lot of heat and keeps it warm after engine shut off.

As i said if this cools down on its own while the engine is still hot and reading 70degrees coolant hot the ms wont even power it on and it will just drag air through it cooling it down more and stay on forever.
When i tried mine under the manifold it worked closed up from power not heat then shut off but after turning the car off for a while it was cold straight away. This bracket i've got on the extractor side works fine now, it gets pretty warm from the extractors and the alloy is the best transmitter of heat.


Dear webmaster - i can't upload pictures using Firefox, they upload and complete however dont show in the message

Download Attachment: aur air (Medium).JPG
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#40
Andrew
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RE: Grant RS2000 2005/11/04 10:08:38 (permalink)
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Grant, it does not require you to tell it when to turn off. That type of air valve was designed to work by itself independant of the ecu. It turns off based on the heat it sees on whatever you've bolted it to. when it gets up to temperature it throws a switch internally and turns off.
This is how they worked on all early bosch systems such as motronic. The fast air valve had nothing to do with the ecu. it is given power all the time and it turns itself on and off based on its temperature. try it.
that is why you are getting the situation you describe. ms is never going to have full control of this type of valve. If it were an on-off vacuum switch, temperature of the valve itself never matters, it is only based on water temp and ms can turn it on and off as it likes.. you are always going to have 2 situations where ms can't control the valve (ms cold, valve hot and ms hot, valve cold) as you basically have two on-off switches in your circuit.


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grant
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RE: Grant RS2000 2005/11/04 12:31:18 (permalink)
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Andrew i get what your saying, however on the Relay board not the ms it has a fidle point, when the ms gets out of warmup it flicks the power off it from the relayboard, this may be a bit different than running just ms and the idle valve. I wasn't aware it had an inbuilt switch we have another one running here with a ms and im sure its fine from the ecu.
I'll look into it a bit more
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Andrew
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RE: Grant RS2000 2005/11/04 13:18:32 (permalink)
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yeah basically what i'm saying is if you want the ms to control the fast idle (relay board or not) you have the wrong type of valve. thats not to say you won't be able to get it to work how you have it, as you say by putting it somewhere hot so effectivly its always on and ms can then switch it on and off.
that type of valve is meant to work independent of any other control ie connect up + and - and put it somewhere that gets engine heat. it will then switch itself on and off based on the heat it sees. try it and see what happens..
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grant
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RE: Grant RS2000 2005/11/04 20:28:11 (permalink)
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Solved the coolant sensor problem, cost me 10 cents to fix .
You just change the resistor in the MS to suit the sensor
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grant
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RE: Grant RS2000 2005/04/16 14:18:48 (permalink)
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Well so far so good, its on the road and driving, have to play with acell enrichments, the ve is basically sorted.
After a 45min long tune yesterday and drive around mountains at all different revs gears it was running fine. Called into pizza hut on way home and forgot to save the file DOH.
#45
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