A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

Boost question???

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Old Dec 21, 2008 | 05:27 PM
  #1  
as4driver's Avatar
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Default Boost question???

I recently purchased a 99 A4 avant 1.8t for my winter car. With no intensions of moding it I reacently purchased:

EPL Chip-installed
Boost Gage-installed
Torbosmart MBC-installed
Testpipe- not installed
710n-waiting install
Slotted roters with Hawk HPS pads-waiting install

When i first picked up the car from EPL i was boosting at 10psi in the lower gears and 15 in forth and fifth. The car was much slower than my friends a4 with a nuesspeed chip and exhaust. I purchased the MBC in order to boost higher in lower gears and increase some top end psi. I read numerous posts about guys boost at anywhere between 18-21psi. Anyway i turned the boost up a little and now the boost is more constitant but still only 15psi. The questions i have are:

How can i increase boost to 18-19 psi with my current chip?

Will installing a N75 race solve my problem?

Does anyone have a EPL chipped car? I have a custum tune from them on my stage 3 s4 and it is insane.

Thank you for your help
Evan

P.S i will post pictures soon.
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Old Dec 21, 2008 | 06:59 PM
  #2  
Yippers®'s Avatar
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Joined: May 2001
Posts: 17,322
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Default Sounds like a boost leak to me. I'd check vacuum lines and swap in the 710n.

I'd also turn the MBC back down till I had the boost resolved.
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