# 1.8T Intake Manifold design and construction. **URL:** https://forums.speedlife.net/t/1-8t-intake-manifold-design-and-construction/256373 **Category:** Shift518 Automotive **Created:** [January 11, 2011, 9:12am UTC](https://forums.speedlife.net/t/1-8t-intake-manifold-design-and-construction/256373 "2011-01-11T09:12:22Z") **Posts on this page:** 1 **Showing post:** 45
### Author: ![KrazyKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/krazykid/32/6371_2.png) [@KrazyKid](https://forums.speedlife.net/u/KrazyKid) #### Post date: [January 15, 2011, 5:42am UTC](https://forums.speedlife.net/t/1-8t-intake-manifold-design-and-construction/256373/45 "2011-01-15T05:42:11Z")
> [@first try at HDR, what ya think? UPDATED 11-11](https://forums.speedlife.net/t/first-try-at-hdr-what-ya-think-updated-11-11/38151/100): > > well considering youre gunning for 600+ whp im sure that could be an issue. i mean look what happened with Aarons car engines. > > and like tom is saying o-ringing might be a good idea, although a smaller turbo, i ran 28-29psi without an issue on my setup. the OEM MLS head gasket hasnt really shown much issue in the high power world though. alot of 500-550whp cars are using OEM gaskets, with ARP studs(and stock TTY Bolts before the ARP hardware was available) > you have the Ie H-beams, many say the limits of the H beam rod in a 1.8t is 500-550whp. then you should plan around an I beam rod, like the Pauter, Brute I beam, or IE Tuscan rod. > > ARP 625 bolts are recommended as well, not the ARP 2000s. > > id like to NOT see this motor let loose and see it be a success. just gotta make sure everything is up to snuff. There is still a good amount of fabrication to do on the car. The motor will hole 400-450 for ever, so that’s my initial goal to start. Make some passes, work the bugs out of the rest of the car then crank it up. At that point it wouldn’t be hard to drop the oil pan and crank then swap out the rods and bearings again. at that point I would like to have designed or bought a main bearing girdle too for extra insurance. Also thanks for the kind words, coming from you that means a lot actually! Thanks buddy. :thumbup --- _[View the full topic](https://forums.speedlife.net/t/1-8t-intake-manifold-design-and-construction/256373)._