# 1.8T Intake Manifold design and construction. **URL:** \ **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:** 22
**Author:** ![Mafdark](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mafdark/32/6322_2.png) [@Mafdark](https://forums.speedlife.net/u/Mafdark)\ **Post date:** [January 11, 2011, 2:46pm UTC](https://forums.speedlife.net/t/1-8t-intake-manifold-design-and-construction/256373/22 "2011-01-11T14:46:09Z")
> [@Another reason why dogs rule](https://forums.speedlife.net/t/another-reason-why-dogs-rule/38635/41): > > now that I think about it. Is it really that hard? I mean if I have say 1 cycle = 1 minute (for arguments sake). > > if my firing order is 1,3,4,2. > > 1 > When 1 is at TDC, 3 is at BDC, having finished its intake stroke. 4 is at TDC, having completed its exhaust stroke. > > 3 > When 3 is at TDC, 4 is at BDC, having finished its intake stroke. 1 is at BDC of its combustion stroke. > > 4 > When 4 is at TDC, 1 is at TDC exhaust, 3 is at BDC combustion, and 2 is at BDC intake. > > 2 > When 2 is at TDC, 3 is at TDC exhaust, 4 is at BDC combustion, and 1 is at BDC intake, ready to start the cycle over. > > couldnt I just input that in and see what the cam overlap duration is and factor that into the mix? > > I am sure I am making this way easier in my head than it actually is on paper/excel. lol > > any refrences on how to gather this data? simple java applet would kick SO MUCH ASS, if it existed where I could just input the build specs and RPM and poof out comes all the data! More or less, yes. I’ve never done it myself, but I can contact some people I know who did this for FSAE to see if they have any tips on it. I’ll let you know what they say. --- _[View the full topic](https://forums.speedlife.net/t/1-8t-intake-manifold-design-and-construction/256373)._