Hi,
Can anyone help me in camshaft selection?
I've been in comp cams web site, cranecams they seem to be the go but still not clear to me. I want to make 400 to 450hp with out sacrificing driveablity and if possible to keep factory computer happy without doing mods to it.
Any help would be appriciated
Regards <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Clubsport:
<strong>Hi,
Can anyone help me in camshaft selection?
I've been in comp cams web site, cranecams they seem to be the go but still not clear to me. I want to make 400 to 450hp with out sacrificing driveablity and if possible to keep factory computer happy without doing mods to it.
Any help would be appriciated
Regards <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Welcome aboard and if you have an m6 then you wont have any driveability issues but an a4 you will.Factory tuning with the numbers you want is very hard to come by with out a shot of the laughing gas.I would go with the comp line up because it has been a proven cam by many and I havent heard to muvh about crane.Not saying that they are not good but I would go wuth what I know.

 

Im still learning with this beast.how do you find out wether its an m6 or m4 and how <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

 

I will entertain you. What year is your car?

 

2001

 

Chevy or Pontiac? Do you have to manually shift?

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Clubsport:
<strong>Im still learning with this beast.how do you find out wether its an m6 or m4 and how <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">M6 - Manual 6 Speed transmission
A4 - Automatic 4 Speed transmission

 

You messed it up for me.. I was going to do that after 5 more responses.. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

 

6 speed it's in our local car called Holden HSV Clubsport R8, Not sure if you know these cars. But it has the identical drive train as your Corvette/Pontiac

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by VINCE:
<strong>You messed it up for me.. I was going to do that after 5 more responses.. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">sorry dude, I'll keep my big mouth shut next time <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

 

come on guys <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />

 

Tell me more about this Holden..

 

What do you exactly want to know <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

 

what mods do you have, what are you willing to do? are you looking for flywheel or rear wheel HP? What is youre idea of driveability? are you willing to change rear gears to help driveability? what do your cars come with stock?

The more info we get around here the better we can help.

Headers will be a MUST if you plan on 400 RWHP... Heads too if you plan on anyhting above that.

If you want flywheel HP, 400-450 is easy

 

Basically from factory it has 255kw 4 into 1 headers dual 2 1/4 exhaust. the diff is 3.73 and has a T56 6 speed. I havn't done any mods to it, I want to port cylinder heads and fit a good cam and valve train components. I want to make 400rwh whilst keeping factory computer as is. The only other thing I can say it runs 10.7:1 afr which is dam rich and killing power <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

 

Oh man, you make some hard rules.
400 hp and stock drivability with out touching the computer? Ouch.

OK here goes.. Hammer cam but with the XE-R lobes cam on a 114, MTI heads Stage 2 heads.

You might have to fiddle with the TB to get it close to perfect.

But those steep lobes really smooth out the idle.
There will be some slight low end power loss, but 400 RWHP should be easily attained. With a minimum of drivability loss. It would erally help you if you had a HPP3 to raise your revlimiter to 6600.

That cams specs would be:
222/222 .581/.581 lobe number 3721
Choose it on a 114 l/s. Have it gound with 4 degrees of advance.

Thats my recommendation.
My web site may help you out with some basic cam knowledge and how it applies to LS1's.
There are also charts there to see what cams you can pick from in the Comp Cam line.

Good luck!

 

Thanks for that,
This is a new toy for me so you think that I can keep the stock computer without touching it?
How do I get a hold of the rev limiter HPP3 and how much??
What do you think of a compcam?
With heads hand port or CNC port, which way do think is best? <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

 

We will help.. Keep coming..

 

whats a hpp3 rev limiter? how does it work <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

 

Its a programmer that lets you raise your rev limiter and change your rear gear ratio if you had a rear gear change..