Hi there, been lurking daily into this forum for a little while now. I had a 1990 CQ which I intended to swap with an AAN engine (a lot more easy to find over here).
Though a couple weeks ago, a CQ with a 3B engine came for sale!! (for the ones who don't know - we don't have S2's here and the only car that had the 3b engine were the 1991 200 20vt - and they sold more or less a 1000 of those and only in the U.S. - not in Canada. On top of that, there were maybe 1400 CQ sold in North America altogether ... so it's almost like finding a saloon
I pondered the idea for 2 weeks and figured I would find the money to buy it.
So, here I am with my "Pseudo-S2"
Supposedly it is bone stock aside from a German engineered cheap ebay chip, 3" exhaust (though the muffler is 2.5" I think) and front mounted bigger intercooler.
It belonged to a Hungarian guy who seem to know his part on those Audi
The plus is that the body is really solid and shows almost no rust.
I had loads of parts coming with it : 2 x complete 7a engines (good for heads and cams) - front and rear subframes - many bits and parts hard to find over here - has a used but nice Nardi steering
Also, was repainted lately.
There is a TON of little things here and there that'll need to look into (locks don't work, backup light switch, windshield, handbrake, hood cable snapped, interior, etc... etc...)
The wiring was supposedly done by someone ho knows what they are doing - though there is a nest of wire just above the clutch pedal !! I surely hope I won't end up needing to mess around in there.
The interior is also rough, though is grey leather (I'll probably try to retro fit UrS4's in at some point anyways
I am a newb at turbo cars but not at mechanics - been finding a lot of posts, articles on the subject and there seem to be alot more than on the 7a CQ engine.
1 have 1 MAJOR question :
I have a boost gauge fitted in the vents above the radio - what should it read at full boost ??
Should I deduct atmospheric pressure !?!?
Because it starts in the negative (i.e. -15psi or so) and goes well above +20psi !! It goes to a point where I can't see the needle anymore.
I haven't checked things yet - I will investigate but I haven't wanted to push too hard because of that. Not sure if normal or not. Maybe the chip removed the safe guards concerning oversboost ??
Also, one other issue that is intriguing : The engine speed dial shows 4k RPM at 110km/h!!
I'm not sure it's acutally going that speed (rpm). I thought I had read something on here about using the DualMass from the 3b (Audi 200) on the 7a transmision.
Are the ratio's that shorter ?? Or it's just the engine speed sensor that is off due to a difference in the flywheel teeths or position of the sensor ?
Anyways - this is just a 1st post - I'll have loads to come in the future
If someone can clarify the boost question I'd appreciate it - I'll probably post a little video of it later on.
Cheers
Etienne
Though a couple weeks ago, a CQ with a 3B engine came for sale!! (for the ones who don't know - we don't have S2's here and the only car that had the 3b engine were the 1991 200 20vt - and they sold more or less a 1000 of those and only in the U.S. - not in Canada. On top of that, there were maybe 1400 CQ sold in North America altogether ... so it's almost like finding a saloon
I pondered the idea for 2 weeks and figured I would find the money to buy it.
So, here I am with my "Pseudo-S2"
Supposedly it is bone stock aside from a German engineered cheap ebay chip, 3" exhaust (though the muffler is 2.5" I think) and front mounted bigger intercooler.
It belonged to a Hungarian guy who seem to know his part on those Audi
The plus is that the body is really solid and shows almost no rust.
I had loads of parts coming with it : 2 x complete 7a engines (good for heads and cams
) - front and rear subframes - many bits and parts hard to find over here - has a used but nice Nardi steering Also, was repainted lately.
There is a TON of little things here and there that'll need to look into (locks don't work, backup light switch, windshield, handbrake, hood cable snapped, interior, etc... etc...)
The wiring was supposedly done by someone ho knows what they are doing - though there is a nest of wire just above the clutch pedal !! I surely hope I won't end up needing to mess around in there.
The interior is also rough, though is grey leather (I'll probably try to retro fit UrS4's in at some point anyways
I am a newb at turbo cars but not at mechanics - been finding a lot of posts, articles on the subject and there seem to be alot more than on the 7a CQ engine.
1 have 1 MAJOR question :
I have a boost gauge fitted in the vents above the radio - what should it read at full boost ??
Should I deduct atmospheric pressure !?!?
Because it starts in the negative (i.e. -15psi or so) and goes well above +20psi !! It goes to a point where I can't see the needle anymore.
I haven't checked things yet - I will investigate but I haven't wanted to push too hard because of that. Not sure if normal or not. Maybe the chip removed the safe guards concerning oversboost ??
Also, one other issue that is intriguing : The engine speed dial shows 4k RPM at 110km/h!!
I'm not sure it's acutally going that speed (rpm). I thought I had read something on here about using the DualMass from the 3b (Audi 200) on the 7a transmision.
Are the ratio's that shorter ?? Or it's just the engine speed sensor that is off due to a difference in the flywheel teeths or position of the sensor ?
Anyways - this is just a 1st post - I'll have loads to come in the future
If someone can clarify the boost question I'd appreciate it - I'll probably post a little video of it later on.
Cheers
Etienne
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