# Evo Thread

**URL:** <https://forums.speedlife.net/t/evo-thread/197829>\
**Category:** PittSpeed Automotive\
**Created:** [June 4, 2008, 11:27am UTC](https://forums.speedlife.net/t/evo-thread/197829 "2008-06-04T11:27:07Z")\
**Posts on this page:** 1\
**Showing post:** 28

<div class="post-metadata">

**Author:** ![PGH\_Lancer\_Man](https://avatars.discourse-cdn.com/v4/letter/p/aeb1de/32.png) [@PGH\_Lancer\_Man](https://forums.speedlife.net/u/PGH_Lancer_Man)\
**Post date:** [June 10, 2008, 4:27am UTC](https://forums.speedlife.net/t/evo-thread/197829/28 "2008-06-10T04:27:14Z")

</div>

> [@Prodrive to enter Formula1 in '08](https://forums.speedlife.net/t/prodrive-to-enter-formula1-in-08/11377/4):
>
> 40r is classified as a small frame turbo, the 42 is classified as a large frame. There is a BIG external size difference 😛

40r is classified as a large frame turbo as well as the 37r, the 35r is the end of the medium frame turbo range. The 37r should be a medium frame but we do classify it as a large frame

---

_[View the full topic](https://forums.speedlife.net/t/evo-thread/197829)._