CompCams #08-502-8 218/224 .498/.502 112 or CompCams #08-304-8 210/220 .500/.510 114? I'll be running a modified LTR setup(Edlebrock base,SLP runners,Ported plenum etc.).And Edlebrock Performer heads in the future.

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91 Camaro Z/28 5.7
SLP catback
SLP runners
SLP 1 5/8" headers
TPIS airfoil
160 degree thermostat
Rebuilt 700R4(borg warner/raybestos clutches,Kevlar band,vette servo)
B&M 2400 stall torque converter
Paxton SN92

 

#1

 

I would go with the third, more elusive option ... LPE 211/219 or even the HOT cam.

 

TPI Guy .... why go with less 211/219 as opposed to 218/224, I'm just curious with why you would choose a lesser came if he is getting a set of free flowing heads???

Im not the best with cams yet, so I was wondering if you could just clarify?

Thanks

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1989 Trans Am GTA

 

A number of reasons:

#1. Computer Compatibility. If you can burn your owns chips, and are competent, disregard this. I recently installed a 219/219 in a super ram'd 350, and the IAC flipped. It won't idle until I get the software/hardware to burn a chip and reset the idle speed. I thought it was too big for a 350. I have a lunati 224/224 and a 3.42 gear, and I think it's too big for my 350.

#2. Intake tract compatibility. Even though it's all hi flow stuff, the length of the runners still impose a significant restriction at upper RPM. The power band will probably fall off well before 5500. So why get a cam that wants to operate at 4500-6000. You sacrifice low end torque and, because of runner restriction, top end HP.

In my opinion, the 211/219 is good, ZZ9 212/22?is better but too expensive, HOT cam with 1.5 rockers will yield a ratio of about 216/226 which is pretty close to the 214,215 intake duration I think is ideal for a LTR 350. It will make power right to 5500, have good torque. CHP put a car into the 12's with LTR's and a zz9.

#3. I do not like comp cams cams. I would almost call it a phobia. Some people run well with them ... but having seen absolutely no honest camshaft comparo's, I default to the fact that I know lingenfelter's cars run. He know's what he's doing and his cars run the number. TPIS has had their cams on the dyno. SLP had the Firehawk. I have yet to see a car that runs really well with long tubes and a comp cams cam. I've answered this question before, so if you want a little more in depth, do a search.

A lot of this is opinion based on fact, but if you have any more questions, feel free to e-mail or post and I'll tell you what I know.

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355 c.i.
Dart 180 Heads
Lunati 224/224 cam
Harland Sharp 1.5 rockers
Performer RPM Manifold
Holley 600 cfm double pumper
Hooker Super Competition Headers
Flowmaster Exhaust
Competition Engineering Sub-frame connectors
Super T-10
GM posi 3.42 rear
Hurst Roll Control
13.9@102

 

What about my second choice 210/220?

 

TPIGuy,, how many SD TPI cams have you swapped and tuned on to base your factual opinion?