Cam swap to make a h/c zo6
07-13-2014, 12:41 PM
#1
Racer
Thread Starter
Cam swap to make a h/c zo6
The car is a 2003 zo6 and as it sits has the following mods:
What sounds and appears to be a stock cam
Afr 205 heads
Comp 1.75 roller rockers
.080 wall 7.4 pushrods
Fast 78mm intake
Haltec intake
Obx longtubes 1 3/4" with off-road x
Borla stinger catback
Twin disk clutch
The car made 403/396 on a dyno jet with all above
I just purchased the following to add/replace some stuff:
Custom 235/239 668/644 112+2 cam
PAC .700 springs
.105 wall 7.4 pushrods
Fast 92mm intake
Ported ls2 throttle body
Power bond 25% under drive
160 degree thermostat
I'll be curious to see what it makes now!
What sounds and appears to be a stock cam
Afr 205 heads
Comp 1.75 roller rockers
.080 wall 7.4 pushrods
Fast 78mm intake
Haltec intake
Obx longtubes 1 3/4" with off-road x
Borla stinger catback
Twin disk clutch
The car made 403/396 on a dyno jet with all above
I just purchased the following to add/replace some stuff:
Custom 235/239 668/644 112+2 cam
PAC .700 springs
.105 wall 7.4 pushrods
Fast 92mm intake
Ported ls2 throttle body
Power bond 25% under drive
160 degree thermostat
I'll be curious to see what it makes now!
Last edited by gdmiller123; 07-13-2014 at 05:06 PM.
should keep you happy....
07-13-2014, 05:05 PM
#3
Racer
Thread Starter
07-13-2014, 05:39 PM
#4
Safety Car
Are you sure on the cam lift?
That's a buttload of lift, and I highly doubt it has a chance of working with stock pistons.
Curious how you chose that if the numbers are correct?
Ron
That's a buttload of lift, and I highly doubt it has a chance of working with stock pistons.
Curious how you chose that if the numbers are correct?
Ron
07-14-2014, 10:03 AM
#5
AMP Racing
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You better check PTV with that cam. And, how do you know how long the pushrods are going to be without measuring preload?
What are your goals? Seems odd that someone went through the expense of installing AFR heads without installing a new cam and all the other things you've mentioned you want to change.
Good luck with your goals.
07-14-2014, 05:10 PM
#7
Racer
Thread Starter
You better check PTV with that cam. And, how do you know how long the pushrods are going to be without measuring preload?
What are your goals? Seems odd that someone went through the expense of installing AFR heads without installing a new cam and all the other things you've mentioned you want to change.
Good luck with your goals.
I thought the same about the heads but won't know exactly what cam is in it until we remove it.
Pushrods length with be verified but the rockers are adjustable
I didn't spec the cam so can't speak fully on it. I know he said it has a small duration so should leave plenty of ptv clearance as long as the heads aren't shaved.
As far as goals, I just wanted to make decent power. Kinda wanted to make over 450 but more curious to see what it makes than anything.
07-14-2014, 05:11 PM
#8
Racer
Thread Starter
07-25-2014, 06:44 PM
#16
Racer
Thread Starter
It ended up making 447/404. Picked up power all across the board. Even picked up 20 tq down lower where most bigger cams typically don't shine. No, it's no record breaker or dyno queen but should pull pretty good. Doesn't even nose over at 7000 rpm. I'll try to post a dyno graph of before and after later.
07-26-2014, 09:31 AM
#20
Racer
Thread Starter