Supercharged V6
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Car: 1982 Firebird
Engine: 2.8 N/A
Transmission: Manual 4 Speed
Supercharged V6
Hypothetically speaking, if i were to supercharge a 3.1 V6 and was planning on upgrading the camshaft as well, what type of specs should i be looking for? I know there arent exactly a ton of options for that engine which narrows down my options a lot as is. Yes, i know this would be a somewhat pointless endeavor if im looking for good cost to power ratio but im not. Thanks
Would any of these be worthwhile or not?
https://www.crower.com/camshafts.html?cat=1183
Would any of these be worthwhile or not?
https://www.crower.com/camshafts.html?cat=1183
#2
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Re: Supercharged V6
Hypothetically speaking 😉
What is optimum depends on the supercharger. Centrifugal like completely different timing than positive displacement, and even different sizes, boost levels and engine compression will change things.
Oh, and people will custom make camshafts if you're willing to spend the $$$
What is optimum depends on the supercharger. Centrifugal like completely different timing than positive displacement, and even different sizes, boost levels and engine compression will change things.
Oh, and people will custom make camshafts if you're willing to spend the $$$
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Car: 1982 Firebird
Engine: 2.8 N/A
Transmission: Manual 4 Speed
Re: Supercharged V6
Hypothetically speaking 😉
What is optimum depends on the supercharger. Centrifugal like completely different timing than positive displacement, and even different sizes, boost levels and engine compression will change things.
Oh, and people will custom make camshafts if you're willing to spend the $$$
What is optimum depends on the supercharger. Centrifugal like completely different timing than positive displacement, and even different sizes, boost levels and engine compression will change things.
Oh, and people will custom make camshafts if you're willing to spend the $$$
Its a roots style supercharger. Do you know offhand any reputable companies that do custom camshafts? I dont mind spending the money to do it right.
#4
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Re: Supercharged V6
Dynamically a roots style supercharger makes the engine work a lot like a bigger version of the same engine, it doesn't affect the exhaust as much as a turbo would and makes breathing on the intake easier (duh ). Barring going custom you can really choose something that has a similar or slightly shorter powerband than what you're hoping for NA, or if you're having problems getting advice going one step smaller on the intake and one step larger on the exhaust. Generally, the lower the boost the closer to an NA shaft will work well and the roots blower airflow will determine the powerband more than the camshaft so you're best not to fight the camshaft timing)
If I was choosing between the Crower camshafts that you listed it would depend on the powerband that you're looking for, the engine's compression and how much boost/which roots blower you're running.
As far as custom camshafts, pick who you like and call them. Most larger companies have some custom grind service and most smaller ones make a living off of recommending and selling custom grinds. For example, the camshaft in my "experiment" 305 which is intended for a turbocharged 305 with later modified LT1 aluminum cylinder heads is a Comp Cams grind 4-7 swap (the firing order is different than a stock SBC) ground on a billet LS style blank with a distributor timing gear pressed on it and it uses some mechanical roller lifter profiles selected to work with short travel hydraulic roller lifters. WAY more off the beaten path than what you're looking for in a 60* V6 (which has more performance parts available than you'd think because they were used in some specific dirt track and other racing).
If I was choosing between the Crower camshafts that you listed it would depend on the powerband that you're looking for, the engine's compression and how much boost/which roots blower you're running.
As far as custom camshafts, pick who you like and call them. Most larger companies have some custom grind service and most smaller ones make a living off of recommending and selling custom grinds. For example, the camshaft in my "experiment" 305 which is intended for a turbocharged 305 with later modified LT1 aluminum cylinder heads is a Comp Cams grind 4-7 swap (the firing order is different than a stock SBC) ground on a billet LS style blank with a distributor timing gear pressed on it and it uses some mechanical roller lifter profiles selected to work with short travel hydraulic roller lifters. WAY more off the beaten path than what you're looking for in a 60* V6 (which has more performance parts available than you'd think because they were used in some specific dirt track and other racing).
Last edited by 83 Crossfire TA; 06-26-2021 at 03:03 AM.
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