I went in this past Saturday for emissions on my 98 A4 and obviously didn't pass due to them not being able to communicate with the stock ECU since its no longer there.
They told me to come back Monday morning for the idle air test. So I go in this morning and prior to going in I leaned out my idle a bit to about 16 and pulled back the timing about 4 degrees.
They hook up their probe to the exhaust but they needed a voltage signal for the rpm, but due to me just changing to the updated center console I didn't have the cigarette lighter hooked up yet. They had to go in my engine bay and hook up to the battery which I thought was for sure going to be a fail since I have no air filter on the turbo right now and just a screen. The guys actually commented me on my set up .
G]
Anyways I passed by a hair on the HC... the limit was 220 and I had 219.8. I think might have been high because of leaning it out so much to the point of where it was miss firing a bit.
Heres the spec's on my setup
- Had the engine rebuilt with new rings. bearings, scat rods, hone, crank polished, 3 angle valve job and new valve guides and seals.
- 034 IIC standalone
- 860cc injectors
- Ross machine fuel rail
- Ceramic coated 034 manifold and downpipe
- HTA3076r .82a/r
- Synapse 50mm synchronic wastegate
- Synapse synchronic BOV
- Precision 600hp intercooler with custom 2.5" piping
- Custom 3" downpipe back exhaust using aeroturbine mufflers (no cat)
So far I've put about 1500 miles on the engine and everything is running good. It took a while to get the part throttle driveability tuned in on the IIC but its running good now and is daily driveable. Boost hits hard around 4400/4500rpms and doesn't stop pulling until you hit lightspeed.
The only problem I've really had aside from a little coolant leak and figuring out a air filter solution is that theres a ticking coming the back of the head. Started after about 500 miles on the new engine so I don't think it lifter tic... I'm thinking its probably the cam chain tensioner.
Heres a pic of my engine bay
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