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Questions about the a4 1.8T

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Old 08-29-2002, 11:24 AM
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Default Questions about the a4 1.8T

2000 model.

Whats the stock boost? Whats the max boost from the turbo? Stock compression ratios?

How much HP can the stock tranny hold?

Where can I find a list of mods available for it?

Thanks,
Zak
Old 08-29-2002, 11:50 AM
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Default Answers about the A4 1.8T

I think the stock boost is around 5psi, the new models had 7psi. The old models were 9.5:1 compression, the new 9.3:1 When I tore mine (97)apart, I measured it at around 9:1

The max boost depends on the amount of airflow the turbo is providing. It is necessary to reduce the amount of boost as the engine RPMs increase to avoid overspinning the turbo. I've seen spikes as high as 19psi in the midrange, but it tapers off to 10-11psi at redline.

As for the MANUAL trans, not sure, they are rated for a specific torque value. There are plenty of people running Stage III kits pushing 300-350hp with no problems. The stock clutch is the weak link.
The Automatic trans is not rated very high, and if you're thinking about a turbo upgrade, also think about a trans upgrade from Level 10.

As for list of mods, check out some of the venders like <a href="http://www.goapr.com">APR</a>, <a href="http://www.awe-tuning.com">AWE</a>, <a href="http://www.stratmosphere.com">Stratmosphere</a>, etc.
The most common mods are chip, exhaust, suspension, wheels and tires.
Old 08-29-2002, 11:54 AM
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stock boost for 150 hp engines is 7 psi...a little higher for the 2001 engine
Old 08-29-2002, 12:00 PM
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Default Something like 7psi old and 10psi new?

I wouldn't know, I've never had a stock chip in my car
Old 08-29-2002, 12:51 PM
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:wavey:
Old 08-29-2002, 02:00 PM
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lol....yeah, those numbers sound right
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