224/224 Cam

[pgriffith]

Didnt somebody install a 224/224 Comp Cam in a 3.8? I remember while back reading that but I cant find anything. Just curious how it worked out.

[Magnus]

I will probably go with 224/224 112 for my 12 sec NA car...

I do not recomend that cam for a typical setup.. To use such a big cam in an NA application you will need at least 4.10's, 4500 stall, spin to 6800 and a light car due to the loss of low end tq and increase of high end HP.

Thats my theory so far.

[Zooomer]

Dan Taylor installed that cam in his Grand Prix GT (3.29 gears)
He ran 15.4 before the cam swap and 15.4 after the cam swap. Following that he installed a high stall converter and ran 14.8, right now that cam appears to be too large for most cars. His rev limiter was at 6400 BTW.

[Magnus]

Very interesting info!!! Thanks Zoomer, I'm going to shoot him an e-mail.

[Magnus]

Here's a link of a GT with a 224/224 112 +4
http://www.charlesbeyer.com/carstuff/wifeSE.jpg
Thanks Zoomer for the link.

Restricted intake and exhaust.. I'll try to get more info.

This is what I gathered.
It's a thrasher grind. 224/224 112 with 2 degrees of advance. .566/.566 lift.

Car has trouble idleing. Low end torque is gone.

[ November 07, 2002: Message edited by: Magnus ]</p>

[southern94]

hmmm.... i know i have a diff type of cam and i don't have as much lift just wanna be sure i won't have probs.


226/236 .494/.506 112ls

but like i said it's a hydraulic flat tappet cam my air flow has been opened up alot to run this cam i think i will be fine just wanted to see what you all think

[SLOWBRAEATER]

So what are the reasons why a cam would be to big for our 3.8 and what could we do to change that is it possible to have a 220/224 cam in a 3.8 and get good results? Or would that yield crappy results? .500 220/224 114ls

[pgriffith]

<blockquote>quote:</font><hr>Originally posted by SLOWBRAEATER:
So what are the reasons why a cam would be to big for our 3.8 and what could we do to change that is it possible to have a 220/224 cam in a 3.8 and get good results? Or would that yield crappy results? .500 220/224 114ls<hr></blockquote>

When you increase duration and lift it raises the power curve. And with a 224/224 cam it will raise the peak power range above 6k. so it might make more power if you can rev really high but it wont make enough usable power.

I was thinking maybe if it were possible to run a stroker 3.8 which would bring alot of the power down to lower rpm's we could run a huge cam and not have to rev very high. But I dont think I would ever spend all that money to stroke a 3.8.

[scottblack]

<blockquote>quote:</font><hr>Originally posted by Magnus:
I will probably go with 224/224 112 for my 12 sec NA car...

I do not recomend that cam for a typical setup.. To use such a big cam in an NA application you will need at least 4.10's, 4500 stall, spin to 6800 and a light car due to the loss of low end tq and increase of high end HP.

Thats my theory so far.<hr></blockquote>


I might try a similar setup now since I got some money to burn.

[Dominic]

Anything over 212 intake is overkill for 6000-7000RPM range on our cyl sizes.

Its simple math to figure the intake duration calcualtion. Lift however is determined by head flow data, and 0.45-0.5 is plenty.

[scottblack]

<blockquote>quote:</font><hr>Originally posted by Dominic:
Anything over 212 intake is overkill for 6000-7000RPM range on our cyl sizes.

Its simple math to figure the intake duration calcualtion. Lift however is determined by head flow data, and 0.45-0.5 is plenty.<hr></blockquote>

Magnus tends to think that you're wrong and he's right so he is going with 224/224.

[ November 12, 2002: Message edited by: Scott Black ]</p>

[scottblack]

<blockquote>quote:</font><hr>Originally posted by Dominic:
Anything over 212 intake is overkill for 6000-7000RPM range on our cyl sizes.

Its simple math to figure the intake duration calcualtion. Lift however is determined by head flow data, and 0.45-0.5 is plenty.<hr></blockquote>

Show the math.

[Magnus]

Scott, what the heck is your problem? Why are you starting crap again?

I do agree that more than 212 NA might not be the greatest idea for the average joe.

An average joe with the 224/224 112 cam went 91mph at the track with PCM tuning while other averages joes went 92mph with much less cam.

You REALLY need a wild setup for a wild cam or it just won't work well at all.

[AZ3.8Camaro]

<blockquote>quote:</font><hr>Originally posted by Dominic:
Anything over 212 intake is overkill for 6000-7000RPM range on our cyl sizes.

Its simple math to figure the intake duration calcualtion. Lift however is determined by head flow data, and 0.45-0.5 is plenty.<hr></blockquote>

Is that desktop dyno????
What do you think about the exhaust duration and lift??? Just curious...

[SLOWBRAEATER]

I disagree with dominic that anything over 212 is overkill, i think my cam is cool for my car i also have a 3600 stall and 3.73s but i think my cam is just fine i will have numbers in march. Do any of you guys think my 220/224 cam is to big ? Like i said i am running a 3600 stall with 3.73 might be going to 4.10 but uncertain at this point, i will be running a direct port shot and i hope this cam will be cool for n/a as well, I will have my rev limiter raised some as well.

[ November 12, 2002: Message edited by: SLOWBRAEATER ]</p>