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cam or torque convertor selection first?
#1768260
03/01/15 02:25 PM
03/01/15 02:25 PM
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Joined: Sep 2005
Posts: 916 Arizona
Chucklehead
OP
super stock
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OP
super stock
Joined: Sep 2005
Posts: 916
Arizona
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I,m building a e body street /strip cuda. 470 lo deck stroker. When looking at cam selection they ask what stall convertor. When I look at convertors that ask about the cam/torque. So which would you select first to determine the other.
Still Broke
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Re: cam or torque convertor selection first?
[Re: Chucklehead]
#1768261
03/01/15 02:33 PM
03/01/15 02:33 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
I,m building a e body street /strip cuda. 470 lo deck stroker. When looking at cam selection they ask what stall convertor. When I look at convertors that ask about the cam/torque. So which would you select first to determine the other.
You have to think of the whole package... so when you are going to buy a cam you have to have in mind what conv you plan on going with.. if you started from scratch then most likely your gonna buy both at the same time(or close).. so think ahead... but be realistic since its a street car mainly
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Re: cam or torque convertor selection first?
[Re: MR_P_BODY]
#1768263
03/01/15 02:53 PM
03/01/15 02:53 PM
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Joined: Jun 2013
Posts: 240 Ft. Wayne, IN.
QTR MILR
enthusiast
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enthusiast
Joined: Jun 2013
Posts: 240
Ft. Wayne, IN.
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I would think about what I was willing to drive on the street converter wise. Then order the cam based on that. Then when you have all the specs. for the cam and the rest of the motor combination give all that info to the converter company. I want the converter guy to have all the info so they can set it up where it needs to be.
Scott
69 Satellite, 3650lb street car... Dunnuck Racing pump gas 440. Best of 10:60@127...
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Re: cam or torque convertor selection first?
[Re: QTR MILR]
#1768264
03/01/15 03:15 PM
03/01/15 03:15 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
I would think about what I was willing to drive on the street converter wise. Then order the cam based on that. Then when you have all the specs. for the cam and the rest of the motor combination give all that info to the converter company. I want the converter guy to have all the info so they can set it up where it needs to be.
What I did on my last ride(street/strip) I tried to set up the total package... what rpm will I want as a max rpm.. so that takes the gear and tire and conv slippage to figure that then base the cam on that and the heads.. I came within 100 rpm but that was due to the slippage I used was slightly high.. I had a idea what I wanted for conv stall... when I started that build I knew what I wanted for ET and had a good idea what I could build the car to weight wise.. so base on that calculated what HP was needed and built on that idea.. it came out with a bit more HP than I needed but I can slow it down if needed
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Re: cam or torque convertor selection first?
[Re: d-150]
#1768266
03/01/15 03:42 PM
03/01/15 03:42 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
cam,converter then rearend gear.the cam determines the other 2
You guys are thinking strictly track.. thats not how I think about street/strip cars that mainly spend their time on the street... but as usual this is my opinion
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Re: cam or torque convertor selection first?
[Re: gch]
#1768268
03/01/15 03:49 PM
03/01/15 03:49 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
On a street car I look at my rear gear and tire height and then work backwards from there.
Same here.. what can I live with for driving RPM
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Re: cam or torque convertor selection first?
[Re: Cab_Burge]
#1768271
03/01/15 07:49 PM
03/01/15 07:49 PM
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Joined: Feb 2008
Posts: 714 Central TEXAS!!!!
sr4440
super stock
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super stock
Joined: Feb 2008
Posts: 714
Central TEXAS!!!!
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I think head flow, rocker arm ratio are 1st. Then select a cam to use the head airflow. Then dyno the engine. adjust your rear gear/tire so your cruise RPM is around peak torque (best BSFC). send info to the converter guy so he/she can nail the converter on the 1st try. you will have a bad street ride.
Joe
Without Data, you’re just another guy with an opinion.
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