Max cam for streetable 402 M6
04-05-2006, 01:35 PM
#1
TECH Regular
Thread Starter
iTrader: (14)
Join Date: Oct 2005
Location: Dayton, Ohio
Posts: 437
Likes: 0
Received 0 Likes
on
0 Posts
Max cam for streetable 402 M6 238/240 .608/.612 112 LSA Cam in a 402 stroker 6 speed. How streetable will it behave? The powerband on the cam is between 2800rpm and 7400 and I don't run my engine past 6000rpm. How much am I gonna lose?
Need some opinions, Thanks
Need some opinions, Thanks
04-05-2006, 02:57 PM
#3
TECH Regular
Thread Starter
iTrader: (14)
Join Date: Oct 2005
Location: Dayton, Ohio
Posts: 437
Likes: 0
Received 0 Likes
on
0 Posts
I'll be stepping up from the basic LS6 cam 204 in/ 218 ex. .550/.550 117LSA. Right now I've got pretty quick throttle response and what feels like a decent amount of pull throughout the power band. THe idle is pretty smooth once it warms up except for a smalling surging that happens about once every couple of seconds.
This cam I'm looking at is a race only. Can someone tell me how it will feel below 2800rpm. Mostly just concerned with under 2000 as I'm driving on the highway.
This cam I'm looking at is a race only. Can someone tell me how it will feel below 2800rpm. Mostly just concerned with under 2000 as I'm driving on the highway.
04-05-2006, 09:59 PM
#7
That cam in a 402 is like blowing into a tunnel. A 402 can take a mid 240's duration real easy. We'll need to know the rest of your setup to determine intake/exhaust duration though. Then it's up to you to pick the lift/ramp/advance you want for the manners you want on the street. Judging by the fact that you want a really streetable setup, you're gonna want a wide lsa (read: as little overlap as possible) to keep the bottom end and street manners.
Trending Topics
04-05-2006, 10:27 PM
#8
Originally Posted by squealingtires
I'll be stepping up from the basic LS6 cam 204 in/ 218 ex. .550/.550 117LSA. Right now I've got pretty quick throttle response and what feels like a decent amount of pull throughout the power band. THe idle is pretty smooth once it warms up except for a smalling surging that happens about once every couple of seconds.
This cam I'm looking at is a race only. Can someone tell me how it will feel below 2800rpm. Mostly just concerned with under 2000 as I'm driving on the highway.
This cam I'm looking at is a race only. Can someone tell me how it will feel below 2800rpm. Mostly just concerned with under 2000 as I'm driving on the highway.
04-05-2006, 11:48 PM
#9
TECH Fanatic
Join Date: Nov 2003
Location: The point of no return...
Posts: 1,380
Likes: 0
Received 0 Likes
on
0 Posts
In case you want another person's opinion, I say definitely go bigger. That cam is WAY to conservative for a 402. You can go a lot bigger and keep the drivability nice.
04-06-2006, 09:07 PM
#11
TECH Regular
Thread Starter
iTrader: (14)
Join Date: Oct 2005
Location: Dayton, Ohio
Posts: 437
Likes: 0
Received 0 Likes
on
0 Posts
Thanks for all the input. Here's the rest of the setup:
243 casting heads with extreme machine work.
Intake (255cc and 2.18" valve) Flow @ 28"H2O approx. 345 cfm
exhaust (88cc and 1.625" valve) Flow @ 28"H2O approx. 240 cfm
62.5cc chambers netting 11.1:1 CR
Intake manifold: portmatched aluminum Wieand
TB: BBK 80mm
Exhaust: 1 3/4" stainless longtubes
Internals: SLP402 stroker package
243 casting heads with extreme machine work.
Intake (255cc and 2.18" valve) Flow @ 28"H2O approx. 345 cfm
exhaust (88cc and 1.625" valve) Flow @ 28"H2O approx. 240 cfm
62.5cc chambers netting 11.1:1 CR
Intake manifold: portmatched aluminum Wieand
TB: BBK 80mm
Exhaust: 1 3/4" stainless longtubes
Internals: SLP402 stroker package
04-06-2006, 09:56 PM
#13
TECH Regular
Thread Starter
iTrader: (14)
Join Date: Oct 2005
Location: Dayton, Ohio
Posts: 437
Likes: 0
Received 0 Likes
on
0 Posts
that's what she said 
So how about a 238/240 low .600's lift on a 112 lsa? that should keep me streetable. Talked with a camshaft manufacturer and they said it would make good power between 2500-6800 rpm. Just whe I want to be.
So how about a 238/240 low .600's lift on a 112 lsa? that should keep me streetable. Talked with a camshaft manufacturer and they said it would make good power between 2500-6800 rpm. Just whe I want to be.
04-06-2006, 10:34 PM
#14
Launching!
iTrader: (1)
Join Date: Jun 2004
Location: VA
Posts: 223
Likes: 0
Received 0 Likes
on
0 Posts
Damn....and I thought I was getting hammered for having a tr224/224 114 cam in a ls6 stage 1 headed 383. Do you have any rwhp/tq #'s with your z06 cam 402? Everyone is telling me to go bigger too!!!
04-06-2006, 10:40 PM
#15
11 Second Club
iTrader: (9)
Join Date: Nov 2004
Location: Thornton, CO
Posts: 1,360
Likes: 0
Received 0 Likes
on
0 Posts
My 402 has a 248/254 629/622 113.
Streetable, nice lope though. Fairly driveable right now and it only has a base tune on it.
Mine isn't a daily driver though. You might want something a touch smaller.
Streetable, nice lope though. Fairly driveable right now and it only has a base tune on it.
Mine isn't a daily driver though. You might want something a touch smaller.
04-07-2006, 11:18 AM
#17
On The Tree
iTrader: (2)
Join Date: Oct 2003
Location: Arizona
Posts: 195
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by squealingtires
that's what she said
So how about a 238/240 low .600's lift on a 112 lsa? that should keep me streetable. Talked with a camshaft manufacturer and they said it would make good power between 2500-6800 rpm. Just whe I want to be.
So how about a 238/240 low .600's lift on a 112 lsa? that should keep me streetable. Talked with a camshaft manufacturer and they said it would make good power between 2500-6800 rpm. Just whe I want to be.
Call Ed @ EDC hes a sponser here and is the man when it comes to custom cams. He has a data sheet he has you fill out, so that he can get a feel of the car before he grinds your cam. At the least give him a call or write him an email.
He has done a couple guys here in az and they are more than happy with them. Not only that he does grinds for one of the local shops cam lines. He knows his ****.
04-07-2006, 11:21 AM
#18
On The Tree
iTrader: (2)
Join Date: Oct 2003
Location: Arizona
Posts: 195
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by ArcticZ28
That cam in a 402 is like blowing into a tunnel. A 402 can take a mid 240's duration real easy. We'll need to know the rest of your setup to determine intake/exhaust duration though. Then it's up to you to pick the lift/ramp/advance you want for the manners you want on the street. Judging by the fact that you want a really streetable setup, you're gonna want a wide lsa (read: as little overlap as possible) to keep the bottom end and street manners.
Possible a cam such as an X4 ? Realatively converservative for an X4. **** the X4 in my ls6 is very streetable. Its all in the tune.
04-07-2006, 01:05 PM
#19
TECH Regular
Thread Starter
iTrader: (14)
Join Date: Oct 2005
Location: Dayton, Ohio
Posts: 437
Likes: 0
Received 0 Likes
on
0 Posts
I should get those dyno numbers before I swap cams since it seems like a lot of people would like to know including myself. I'm just running a conservative mail order tune from Street & Performance in Mena, Arkansaw. After the cam install I'll be paying someone to really tune the engine in.
