Exhaust Backpressure & Scavenging ...

[jmc007]

http://www.veryuseful.com/mustang/te...Scavenging.pdf

What the he** is that smilies ...

[marlinbaltha]

Originally Posted by jmc007

http://www.veryuseful.com/mustang/te...Scavenging.pdf

What the he** is that smilies ...

good article just wondering though it sounds like from what I read the lower end 4 cyl work better at lower rpm with back flow... ie does that mean we need a little back flow to correct scavinging? I haven't really tuned yet but the more and more I do my research I am finding more and more reasons to get a stage 2 and call it a day!

[WopOnTour]

Much of what is being discussed in that article appears to be based on a naturally aspirated engine.There is of course a big difference in the reversionary effects on combustion and charge stratification in a boosted engine. The best way to take advantage is with variable valve timing of course. I've been working with the LNF a lot of late. It's amazing electronically messing with various cam timing elements such as overlap and centerline and it's effect on direct injecting into the homogeneous charge. Now I want to put an LE5 VVT head on an LSJ...
Wop

[socalsilverRL]

Originally Posted by wop

Now I want to put an LE5 VVT head on an LSJ...

...you have been reading my mind...

[sheek360]

Originally Posted by socalsilverRL

...you have been reading my mind...

shoot man have u seen our exhaust ports..... i bet a decent port will really make some decent gains.