Pontiac - Race The next Level

          
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  #1  
Old 12-09-2005, 04:46 PM
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Default Build a car around a cam

Got this cam from a friend for FREE.It's an older crane cam's cam new in box.What engine,heads,intake,trans,rear ratio would you use.say the body is 3500 lbs with driver.

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1977 Trans Am,400 4 speed,numbers matching car
1979 Bonneville ,1 owner car...
1997 Trans Am convertible,LT1/auto.

Last edited by firebirdcrazy1959; 04-17-2008 at 08:00 PM.
  #2  
Old 12-09-2005, 04:47 PM
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Also with 1.5 and 1.65 rockers

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1977 Trans Am,400 4 speed,numbers matching car
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  #3  
Old 12-09-2005, 04:59 PM
bobzdar bobzdar is offline
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I'd use heads that flow around 240-250cfm intake @.500" lift on a 400/428/455 with forged rods and lightweight pistons and anti-pump up lifters with the recommended springs.

Coverter/trans and rear will depend on the size of the engine you choose, if a 400 I'd go for 3400rpm converter with 3.90's, if 455 a 3000rpm converter with 3.55's and if 428 somewhere in between (3200rpm with 3.73's?). You will most likely be going over 6000rpm in any of those engines, so make sure the oiling system and bottom end are in good shape.

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Old 12-09-2005, 05:20 PM
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i have a 400,428 and a 455.#16's,#62's ported.don't know the flow of the #62's.is it a good cam for 11's.my 1980 bird with a 462,#62's ported,torker 1,q-jet,350 turbo with 3200 stall,1 5/8 headers,3.23 rear and 041 cam and 1.5 rockers. does 12.22@109 in the 1/4.car is 3400lbs with me in it.

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1977 Trans Am,400 4 speed,numbers matching car
1979 Bonneville ,1 owner car...
1997 Trans Am convertible,LT1/auto.
  #5  
Old 12-09-2005, 10:06 PM
Jim Hand Jim Hand is offline
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F.B.C.
You will never be happy with that cam in any car that can be driven on the street! It is designed for continous higher RPM loads. In fact, my old Wolverine catalog has one almost identical - even same very wide lobe separation of 116, and it is listed for "Short Oval" applications. And the Wolverine had the same 111 intake center and same 121 exhaust center lines. The intake was 244 rather then your 246, but the exhaust was the same 254 duration @ .050. And the lift on both lobes were .518 as compared to your .512/.530. In other words, the two cams are practically identical and would act/work the same. Note that Crane rates it for 3500 to 7000 - that means it would be very weak down in any normal driving range!

Cams of that duration from Crower, Lunati, Comp Cams have lobe separation of 108 to 110, and with intake lobe centers much earlier (106-108) - that would pull the power range back down to a reasonable RPM, although they would idle even worse. I tried the Wolverine version, PN WG 5060, in my wagon - compared to my 041 cam, it lost about .2 seconds and 2 MPH in the 1/4!

Normally, I recommend that anyone run/try any parts they have on hand, but you will waste a lot of time and money on that one! And when much better cams can be bought for around 140-150, why waste time and money trying to make it work?

I suggest you replace the Torker with an RPM, and prepare for and use 1.65 rockers, and you may be pleasantly surprised at how quick your present car really is! I have run 11.70 at 4065#, 3.31 gear, Pontiac iron Q Jet intake, Q Jet, 041 cam/1.65 rockers, full exhaust system, and pump gas with 10 CR. At your race weight, some tuning and minor parts changes can pick up a bunch of performance.
Jim Hand

  #6  
Old 12-09-2005, 11:07 PM
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Is the cam a new or used cam?

Tom V.

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  #7  
Old 12-09-2005, 11:12 PM
Yentl Marmelstein Yentl Marmelstein is offline
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Build a car around a cam? That was supposed to be a joke, right?

How about building a car around the E.T. window you're looking to hit?

Mr. Hand: nice to hear from you again. How's your old pal Gatch?

wink! wink!

  #8  
Old 12-10-2005, 04:31 AM
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i was just wondering.got it for free new in box.wanted to see what you guys thought.i was going to install the 1.65 rockers and see how the car ran with them.if i can get the tires to grip i know the car will do 11's now.it spins for the first 20 to 30 ft.

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1977 Trans Am,400 4 speed,numbers matching car
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  #9  
Old 12-10-2005, 09:36 AM
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whats the lift with 1.65 rockers on the crane cam and the 041 cam i have in the car now.i built the motor for weekend racing.don't drive it on the street.

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1977 Trans Am,400 4 speed,numbers matching car
1979 Bonneville ,1 owner car...
1997 Trans Am convertible,LT1/auto.
  #10  
Old 12-10-2005, 06:52 PM
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The lift on that crane cam in your pic would be .562 on the intake and .582 on the exhaust. According to the Dudes sight the lift on the 041 cam would be .518 http://www.angelfire.com/fl4/pontiac...yCamSpecs.html.

Robert

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  #11  
Old 12-11-2005, 05:01 AM
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thanks guys.just wanted to see what you thought.i'm not going to use that in my car.

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1977 Trans Am,400 4 speed,numbers matching car
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1997 Trans Am convertible,LT1/auto.
  #12  
Old 12-11-2005, 12:08 PM
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Firebirdcrazy1959,

Please PM me asap. Might be able to help you out.

Tom V.

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  #13  
Old 12-11-2005, 05:01 PM
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tom your pms are full.need to clean some out

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1977 Trans Am,400 4 speed,numbers matching car
1979 Bonneville ,1 owner car...
1997 Trans Am convertible,LT1/auto.
  #14  
Old 12-12-2005, 05:53 PM
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I deleted a few so try again.

Tom V.

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  #15  
Old 12-12-2005, 08:20 PM
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PM sent

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1977 Trans Am,400 4 speed,numbers matching car
1979 Bonneville ,1 owner car...
1997 Trans Am convertible,LT1/auto.
  #16  
Old 12-13-2005, 08:22 AM
Geoff Geoff is offline
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FBD,
Now you know why it was free!! LOL.

  #17  
Old 12-31-2005, 01:42 PM
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Tom V

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1977 Trans Am,400 4 speed,numbers matching car
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1997 Trans Am convertible,LT1/auto.
  #18  
Old 12-31-2005, 03:26 PM
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Thanks E-Mail me your address again and the amount plus shipping.

Tom V.

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Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
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