LowNismo17

My friend bought a pair of Crower 404 cams for his LS and now plans on building the bottom end and boosting it..everyone says that the such high lift and duration on the cam is not good for boost, is that true? i have searched and couldn't find any info on these cams on boosted applications, any info would help..i personally figured higher duration cams would make more top end power.

JDMs1eeper

Actually those cams are prolly the best for an LS with boost. make sure you have aftermarket valve sprigs and retainors.

SprayTeg on here has a set that are "almost" like them, he's running like 11.1 @ 130+ traps with them in an EK hatch.

vtac sonn

well rich if this guy knows his stuff jay should keep them

Cyphear

Theres a few people i've heard that liked that setup. the lobes are almost the exact same as GSR vtec lobes, so why not, right?

liam821

I ran a Custom Grind Crower cams similar to the 404s on my dohc ZC with boost, and i loved them. It wasnt a happy idler, but had a great topend, with the larger displacement LS idle shouldnt be a problem tho.

liam

atec

long duration gives more top end, too long cause blowtrough and you`ll loose powerband, if the engine isnt reving high.
think that have to do with the setup, F.eksample a ford motor reving 6500rpm and stop..doesnt benefit of a type R spec cam (on high lift lobe)unless it rev past 8000rpm.
not with turbo.

high lift is good
long duration is good too, on high reving engines.

I still say a thumb rule is, boosted engines needs smaller duration and overlap.
and know many disagree, becouse they proven otherwise on their HONDA engines..
but it`s something special with honda

no2unenolife

i'm actually getting dyno tuned this thursday with the 404's, been running the setup for almost a year now.

aznhiryzr

He has the crower dual valvesprings, but stock retainers, i don't believe he plans on reving past 8,500, we are going to dyno it once finished and then find a shifting point.. thanks for the info, and vtacsonn has to be nick, lol

aznhiryzr

opps WTF, that post was supposed to be under LowNismo17..who is aznhiryzr?? he must have been signed on the HT on the same computer i use at school..

vtac sonn

yeah dood liek wtf get off other peoples name ******* and go get ur *** on some fackin stoopid 240sx nismo forum ********