# first turbo ZR1

**URL:** <https://forums.speedlife.net/t/first-turbo-zr1/251199>\
**Category:** Shift518 Automotive\
**Created:** [March 29, 2010, 5:48pm UTC](https://forums.speedlife.net/t/first-turbo-zr1/251199 "2010-03-29T17:48:20Z")\
**Posts on this page:** 1\
**Showing post:** 39

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**Author:** ![Shawn96VR-4](https://avatars.discourse-cdn.com/v4/letter/s/eada6e/32.png) [@Shawn96VR-4](https://forums.speedlife.net/u/Shawn96VR-4)\
**Post date:** [March 30, 2010, 6:42am UTC](https://forums.speedlife.net/t/first-turbo-zr1/251199/39 "2010-03-30T06:42:09Z")

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> [@New Purchase](https://forums.speedlife.net/t/new-purchase/30502/30):
>
> 19-20 psi is about the max on 93. timing is usually 20-23deg.

I was referring to the fact that you can run more boost if you kill the timing (hence boost pressure is pointless if just using the # as reference)

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