my setup is:
81.5mm LS
11:1 cc'd in chamber
homemade port work
crower VT w/ .5mm over valves
crower 403's.
skunk IM/LS TB
DC 4-2-1 (junk) i use this header cause it has an EGT probe.

motor is untuned right now.

this motor was built and then rebuilt by me... but when i rebuilt it i went super cheap. its burning some oil because i didn't replace valve seals. when i go to replace valve seals, i was thinking about putting in some bigger cams

whats some opinions on my setup with 405a's?

please... dont tell me to throw a VTEC head on. this motor is in my beater... i dont really care that much about it.

 

I would go for the 404 instead of the 405a's.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DC4KiD &raquo;</TD></TR><TR><TD CLASS="quote">I would go for the 404 instead of the 405a's.</TD></TR></TABLE>

 

i run 404's and make power all the way to 8grand. from what i heard 405's are just way to hard to idle. the 404's are just about a race cam, so the 405 got to be a beast.

but if you can live with the idle go for it

and i think they need more CR than the 11:1 your running now to get the full potential out of them

 

The thing is though, with very large overlap cams its not just the crappy idle with no vacuum--its the fact that the car is very easy to stall even up to like 1500 rpm--and it becomes much more demanding to drive in traffic especially with a puck style clutch--I drive an a6 with a very large cam and at low rpm its very hard to drive and pull away from a stop smoothly.

 

404's.

 

if you put the 405s in that motor they would just loose power all over exept maybe the last 500 rpm compared to 404's.

404's are perfect for a 1.8l and will support up to 180ish max on a 1.8l. most people get between 160-175 depending on the build with 404's.

 

ok, thanks for the advice.

i can't believe theres so many non-vtec builds now. a few years ago hardly anyone was doing big non-vtec builds.

i was going to get some dyno time, but then holidays came sooner than expected. f'ing xmas presents suck..... to buy.

i might do a before and after: 403's vs. 404's on my setup.

thanks for the help again

 

once i get my head ported id like to do a before and after with the 404's i have now and 405's. problem is its another 150-200 bux just to satisfy my curiosity.