# Duramin Express **URL:** https://forums.speedlife.net/t/duramin-express/258263 **Category:** Shift518 Automotive **Created:** [May 5, 2011, 4:04pm UTC](https://forums.speedlife.net/t/duramin-express/258263 "2011-05-05T16:04:53Z") **Posts on this page:** 1 **Showing post:** 35
### Author: ![freakLS7](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/freakls7/32/6298_2.png) [@freakLS7](https://forums.speedlife.net/u/freakLS7) #### Post date: [May 6, 2011, 2:26pm UTC](https://forums.speedlife.net/t/duramin-express/258263/35 "2011-05-06T14:26:08Z")
> [@GM cancels new DOHC V8 plans](https://forums.speedlife.net/t/gm-cancels-new-dohc-v8-plans/41171/49): > > It still has the same effect as blocking the valve as it’s a sealed unit at that point. Spikes obviously aren’t the same as held boost, and stock it commands about 19psi peak on the LMM. It’s not that it wont do more boost than that, it’s just working harder because it has to overcome the leak. Who the fuck knows, the fast guys on DD are the ones that said it – not me. its def a good thing to block the egr as it keeps your motor clean its also a good idea to do a pcv reroute so you dont send oil back through your turbo/ic/intake but i cant see its gonna gain any significant amount of power just from blocking it off. this van doesnt run a high 14 stock? much lighter than the truck. my truck went 15.4 stock --- _[View the full topic](https://forums.speedlife.net/t/duramin-express/258263)._