Changing my cam again. Help Needed!
Thread Starter
Drifting
Joined: Feb 2013
Posts: 1,465
Likes: 12
Changing my cam again. Help Needed!
I am going to pull my engine out and go threw everything and change my cam to something a little better for BOOST. I am hoping to get some input from the guys on here before I make a final decision.
I have a comp cam grind # 280 XFI HR-13
576/571 lift 230/236 @ .050 with a 113 lobe sep
My Mods are: 1992 LT4
P1SC procharger w 8 rib bracket, 2.65 pulley, meth/water injection
12-14 psi at around 6500
Forged 383 10:1 compression, studded with cometic head gaskets
AFR 210 comp port heads with 70cc chambers
Port matched LT4 intake
BBk 58 MM TB
Siemens 60 lb injectors
aeromotive pump and regulator
ARH 1 7/8 step headers with full 3' exhaust
And all the supporting minor stuff. I have a competent tuner with a nice dyno tuning the car for me. Right now I am running the 6 rib pulley from procharger and 7.5 psi. I am going to put Gregs 8 RIB on and pulley down to get somewhere around 12-14psi
I know there is alot more to be had from a better boost friendly cam and I am looking for some suggestions! I was thinking maybe even a custom grind but I need more knowledgeable input from someone that is more competent when it comes to cams. So any advice would be greatly appreciated!
I have a comp cam grind # 280 XFI HR-13
576/571 lift 230/236 @ .050 with a 113 lobe sep
My Mods are: 1992 LT4
P1SC procharger w 8 rib bracket, 2.65 pulley, meth/water injection
12-14 psi at around 6500
Forged 383 10:1 compression, studded with cometic head gaskets
AFR 210 comp port heads with 70cc chambers
Port matched LT4 intake
BBk 58 MM TB
Siemens 60 lb injectors
aeromotive pump and regulator
ARH 1 7/8 step headers with full 3' exhaust
And all the supporting minor stuff. I have a competent tuner with a nice dyno tuning the car for me. Right now I am running the 6 rib pulley from procharger and 7.5 psi. I am going to put Gregs 8 RIB on and pulley down to get somewhere around 12-14psi
I know there is alot more to be had from a better boost friendly cam and I am looking for some suggestions! I was thinking maybe even a custom grind but I need more knowledgeable input from someone that is more competent when it comes to cams. So any advice would be greatly appreciated!
Last edited by smooth1990; Dec 3, 2013 at 12:58 PM.
Thread Starter
Drifting
Joined: Feb 2013
Posts: 1,465
Likes: 12
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
I was just messing with ya. You have a great set up as it is. What kind of rear end set up are you running?
Thread Starter
Drifting
Joined: Feb 2013
Posts: 1,465
Likes: 12
As of now I have the stock D44 with 3.54. Im fairly certain I will break it next year when I throw some stickies on it. If and when that happens, I will upgrade to either a straight axle conversion or that D44 setup thats posted on here when and if they can get it done. They are hoping it holds 1000 whp. If it does, i will buy it. Id like to keep the IRS if I can.
Intl Council of Corvettes
Joined: Aug 2011
Posts: 139
Likes: 3
From: Huntsville Alabama
Good luck on the upgrades you are doing. I am considering a procharger on mine but I have not decided if I can do it with my set up. I would think that the came you have now would be excelent for boosting? did it breath okay with the 6lbs you are throwing at it now?
Thread Starter
Drifting
Joined: Feb 2013
Posts: 1,465
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I just posted a vortech V-1s for sale with a fast computer in the for sale section!
Thread Starter
Drifting
Joined: Feb 2013
Posts: 1,465
Likes: 12
No sorry. I want to retain the choppy idle.
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From: Boston, Dallas, Detroit, SoCal, back to Boston MA
Thread Starter
Drifting
Joined: Feb 2013
Posts: 1,465
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Do you have any video of your car idling?
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
To really get it right and get the most out of what you got you need someone who specs and makes them every day
Google
Chris Straub (hes here on the C3 tech board Cstraub69) or Mike Jones aka Cam King found on speedtalk. They will get better results than about anyone else out there. When youre cranking up the boost the "almost right guess" cam can be giving up a lot.
Chris Straub (hes here on the C3 tech board Cstraub69) or Mike Jones aka Cam King found on speedtalk. They will get better results than about anyone else out there. When youre cranking up the boost the "almost right guess" cam can be giving up a lot.
Last edited by cv67; Dec 3, 2013 at 03:35 PM.
Burning Brakes
Joined: Jul 2006
Posts: 1,080
Likes: 2
From: Pittsburgh PA
What do you feel is wrong with the current cam? Its not a bad cam for lower medium boost. Typical blower cams run abit more exhaust duration and if you crank up boost and thus power i would look at adding 4-6 more deg on exhaust side.
Visit jonescams.com, bullet racing cams or other grinders. Even Bret Bauer, at bret@bauer-racing.com
Visit jonescams.com, bullet racing cams or other grinders. Even Bret Bauer, at bret@bauer-racing.com
Melting Slicks
Joined: Aug 2003
Posts: 3,399
Likes: 394
From: Lakeville MI
To stir the pot, I would consider something like this:
http://www.compcams.com/Company/CC/c...?csid=216&sb=0
Should make more power than your current cam, earlier intake closing and later exhaust opening and considerably more overlap to scavenge the cylinder.
http://www.compcams.com/Company/CC/c...?csid=216&sb=0
Should make more power than your current cam, earlier intake closing and later exhaust opening and considerably more overlap to scavenge the cylinder.