Opinion on Cam vs Rocker upgrade
Thread Starter
Joined: Aug 2011
Posts: 2,379
Likes: 10
From: San Diego, California For Now
Car: 88 Formula, 90 Iroc RIP, 92 RS Sold
Engine: 305 to 350
Transmission: 700r4
Axle/Gears: 10 Bolt
Opinion on Cam vs Rocker upgrade
There's not a lot of info or people running the cam I have so need your guys opinion on my budget build so just want a opinion on my setup and see if I'm heading in right direction ?
My setup currently 350 tpi iroc z specs on cam are as follows
Comp 8-501-8 duration .050" lift :212int/218exh. *Valve lift with 1.5 ratio is .488int/0.495exh lift rpm range 1200-5200rpm
I have full exhuast and headers airfoil afpr etc.....
I'm in process of porting/polish lt1 heads and match the intake if needed nothing to crazy just cleaning it up .
And I was going to upgrade springs to 26915-16 from comp and upgrade to 1.6 roller tips which should bring lift to .520/.528 ....
Or should I get a hot cam Or A comp Xr270Hr or Xr264Hr and reuse the 1.5 rockers I have and still upgrade springs ?
I'm going to be running a custom tune also . I'm only trying to get over 300rwhp for right now.. So that's my goal .
Thank You!
My setup currently 350 tpi iroc z specs on cam are as follows
Comp 8-501-8 duration .050" lift :212int/218exh. *Valve lift with 1.5 ratio is .488int/0.495exh lift rpm range 1200-5200rpm
I have full exhuast and headers airfoil afpr etc.....
I'm in process of porting/polish lt1 heads and match the intake if needed nothing to crazy just cleaning it up .
And I was going to upgrade springs to 26915-16 from comp and upgrade to 1.6 roller tips which should bring lift to .520/.528 ....
Or should I get a hot cam Or A comp Xr270Hr or Xr264Hr and reuse the 1.5 rockers I have and still upgrade springs ?
I'm going to be running a custom tune also . I'm only trying to get over 300rwhp for right now.. So that's my goal .
Thank You!
Joined: Feb 2001
Posts: 8,494
Likes: 412
From: Sophia, NC
Car: 2016 Camaro SS + 1986 Z28
Re: Opinion on Cam vs Rocker upgrade
I don't think the LT1 heads will work on your 350. They're reverse flow cooling, right? ...and you'll want to upgrade the intake, even for the cam you have now, let alone something bigger. ...what heads and intake you plan on running will help determine what the best cam will be.
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iTrader: (2)
Joined: May 2009
Posts: 3,371
Likes: 2
From: Delaware
Car: 91' Firebird SOLD
Engine: 350 TPI +bolt-ons
Transmission: 700r4
Axle/Gears: 3:42
Re: Opinion on Cam vs Rocker upgrade
ok,assuming u use stock 350 heads ,then next question would be what intake r u planning on using? tpi? ,then i would go with the 212/218 cam.That would be best if u plan on keeping the "low end torque " theme.
Thread Starter
Joined: Aug 2011
Posts: 2,379
Likes: 10
From: San Diego, California For Now
Car: 88 Formula, 90 Iroc RIP, 92 RS Sold
Engine: 305 to 350
Transmission: 700r4
Axle/Gears: 10 Bolt
Re: Opinion on Cam vs Rocker upgrade
Yea I know tpi falls after 4500
But a torque monster below that a lot of wheel spin lol
I don't think the LT1 heads will work on your 350. They're reverse flow cooling, right? ...and you'll want to upgrade the intake, even for the cam you have now, let alone something bigger. ...what heads and intake you plan on running will help determine what the best cam will be.
Lt1 heads And lt1 intake I'm going to run
Supreme Member
iTrader: (2)
Joined: May 2009
Posts: 3,371
Likes: 2
From: Delaware
Car: 91' Firebird SOLD
Engine: 350 TPI +bolt-ons
Transmission: 700r4
Axle/Gears: 3:42
Re: Opinion on Cam vs Rocker upgrade
tpi wont fall at 4500 rpm with a better intake and cam that works in the same range. i dont think lt1 heads work on your 350.
Thread Starter
Joined: Aug 2011
Posts: 2,379
Likes: 10
From: San Diego, California For Now
Car: 88 Formula, 90 Iroc RIP, 92 RS Sold
Engine: 305 to 350
Transmission: 700r4
Axle/Gears: 10 Bolt
Re: Opinion on Cam vs Rocker upgrade
https://www.thirdgen.org/forums/fabr...n-project.html
Not a lot of people are running this because of the hassle of getting it to work Most are just running the lt1 intake conversion Due to its similaritys to the miniram
Last edited by Zach/90\irocZ; Apr 25, 2012 at 10:33 PM.
Thread Starter
Joined: Aug 2011
Posts: 2,379
Likes: 10
From: San Diego, California For Now
Car: 88 Formula, 90 Iroc RIP, 92 RS Sold
Engine: 305 to 350
Transmission: 700r4
Axle/Gears: 10 Bolt
Re: Opinion on Cam vs Rocker upgrade
Heads are already converted when i got them with intake I was just going to run intake but im going to try the heads just to see how It runs
So any opinions on my setup with 1t1 heads intake as stated above
So any opinions on my setup with 1t1 heads intake as stated above
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