Crower 402's on stock valvetrain?
#1
VAdriven Sponsor
Thread Starter
Join Date: Jan 2005
Location: NoVA // Springfield
Posts: 894
Likes: 0
Received 0 Likes
on
0 Posts
Crower 402's on stock valvetrain?
i just picked up some Crower 63402-2 cams ..
here are the specs http://www.crower.com/cat/import/hon...s/b_vtec.shtml
they recommend running upgraded valvespring & retainer kit...
i would like to do that, i am doing a b20/vtec conversion though,
& i dont plan on revving past 8500 tops..
what will happen if i run the cams on stock valve springs?
type-r valve springs?
thanks for your input, _PAUL
here are the specs http://www.crower.com/cat/import/hon...s/b_vtec.shtml
they recommend running upgraded valvespring & retainer kit...
i would like to do that, i am doing a b20/vtec conversion though,
& i dont plan on revving past 8500 tops..
what will happen if i run the cams on stock valve springs?
type-r valve springs?
thanks for your input, _PAUL
#2
Registered member
Join Date: Jan 2003
Location: Working my life away
Posts: 3,041
Likes: 0
Received 0 Likes
on
0 Posts
Re: Crower 402's on stock valvetrain?
the stock springs aren't strong enough to bring the valves closed before the pistons come back up, causing valve float which equals boom, no more engine.
#5
Re: Crower 402's on stock valvetrain?
are you running stock b20 pistons? if so, this might be ok, but high compression pistons would definitly be a threat.....If boost is any where in your equation definitly up grade the valve springs....
#6
VAdriven Sponsor
Thread Starter
Join Date: Jan 2005
Location: NoVA // Springfield
Posts: 894
Likes: 0
Received 0 Likes
on
0 Posts
Re: Crower 402's on stock valvetrain?
Originally Posted by according
are you running stock b20 pistons? if so, this might be ok, but high compression pistons would definitly be a threat.....If boost is any where in your equation definitly up grade the valve springs....
w/the pistons i have i should be close to 11:1 compression ratio, i will not be boosting
#7
Bitches get Stitches
Join Date: Mar 2003
Location: Chesapeake
Posts: 3,959
Likes: 0
Received 0 Likes
on
0 Posts
Re: Crower 402's on stock valvetrain?
the stock springs arent stiff enough to take a ton of lift, so yeah you'll probably get float at higher rpms or actually bend one of the stock retainers if you put too much pressure on it....which isnt good. my recommendation is to just hold onto the cams until you can build the valvetrain too. it's not worth risking the rest of your motor honestly.
#8
VAdriven Sponsor
Thread Starter
Join Date: Jan 2005
Location: NoVA // Springfield
Posts: 894
Likes: 0
Received 0 Likes
on
0 Posts
Re: Crower 402's on stock valvetrain?
so i guess i'll be looking for upgraded valve train... anybody have any valvespring & retainer set for b16 head?
Thread
Thread Starter
Forum
Replies
Last Post