just wondering if this cam will pass emissions. i want it on a 112 LSA. ive heard that a 114 lsa will be better to pass. any info would be great guys.
thanks
nick

 

The out of the box CC305 will, and a CC503 will be lucky if it does it's right on the edge of what would pass.

Bret

 

i knew that the 305 would pass but wasnt sure if the 503 would. how much of a difference is there in lope and shift RPMs in a 6 speed? any ideas on how much they will hurt gas milage?

 

Are you moving to the socialist republic of California? Who cares in Texas?

As Bret said, it's close and will totally depend on the tune. I have heard of
CA cars passing with a 503, but it's on the edge.

 

we have emissions here in DFW it sucks. i can buy a sticker for a bill though just curious you know

 

i'm putting in a 503 next week. I'll tell u in two years when i have to pass again.Its gonna be close if it does.i might try a "emissions tune" using lt1 edit if i fail.I live in mass.

 

The LE1 emissions cam is on the edge too but you just have to know what you are looking for in terms of cam specs, basically overlap area, to get one to pass the sniffer.

Bret

 

Bret, does only overlap at .005 lift matter? or does advertised duration overlap matter? Which one is really more important in terms of emissions? Thank god i don't have emissions, its just something i've always wondered.

 

Overlap in total... takes some calc to figure out the area of it (thank god for computers) and I have some maximums that I will not cross in terms of .050 duration overlap.

Bret

 

That makes since. I didn't think if it in terms of area, just only in degrees of duration. I'm just glad i'm gonna get a custom cam from you.

 

I hate working around emissions... things are a pain in the *** and not productive to HP. The motor I'm designing for the SS has to pass the sniffer, but I'll change the dam cam before I go test lol...

Bret

 

I passed with the 503 barely. The cat was brand new. It took me 2 times to do it but it did it! In fact, the only one it didn't pass was the NOX the first time. Make sure your engine is HOT!