audi s4

[audiboy17]

i was wondeirng how much boost the stock 2000 audi s4 can run when i put on a boost controller. How much psi can i run. thanks for the help

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[djfux69]

someone delete this post, i cant get it to go away. the second one is the one i wanted to submit, i dont know how 2 came up.

[djfux69]

you cant run a boost controller on the s4. it has an electronically controlled external wastegate that no matter how high you turn up the boost, it will only allow the stock setting, which i beleive is 9psi. you need to buy a chip, goapr.com they have good stuf with chips starting around $600. the 93 octane setting will push boost up to 14.5 safely with 328hp and 368tq. dont buy the boost controller, and if you already did, send it back

[thepolarfoxqx]

stock boost is 9.1psi on the 2.7TT. it is also true that boost is linked into the main ECU - and is wastegate controlled. A chip is the most efficient way to increase boost. The turbos are not capable of over a little better than 14, but that is a large increase. If you want more pressure than that, get ready for some work.

[izzyloveslizzy]

9.1 psi is the norm for all ain't it?