383 Cam?
01-10-2009, 10:33 PM
#1
383 Cam? whats everyone using? I currently have a 246 248 .614 .615 114 my 383 with patriot heads(62cc) and -7cc pistons so the dcr is really low.
I was suggested to use a 242 248 .621 .615 111 +2 or +4 about a year ago but never got around to switching. anything new out I should try?
I was suggested to use a 242 248 .621 .615 111 +2 or +4 about a year ago but never got around to switching. anything new out I should try?
01-11-2009, 08:24 AM
#5
A 383 will want around 6 degrees more overlap/duration to behave like a smaller 346. Look at the popular, strong running 346 combos with similar mods and street manners close to what you want, add 6 degrees and that will get you in the ballpark to get started.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
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01-11-2009, 11:19 AM
#8
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Exactly the information I am also looking for! Keep it coming! I was considering either the MS3 Or a custom grind around 239/249/.600.609 111.5......Not sure what to go with.
01-11-2009, 12:38 PM
#9
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01-11-2009, 01:33 PM
#10
I was just playing with the DCR calc. How would a 236 242 .602 .610 111+4 work.
On the street it would probably be better but what about on the track. How about with a 150-200 shot?
would a lsk 242 .621 work better on the exhaust?
On the street it would probably be better but what about on the track. How about with a 150-200 shot?
would a lsk 242 .621 work better on the exhaust?
Last edited by 1BADAIR; 01-11-2009 at 01:39 PM.
01-11-2009, 02:08 PM
#11
Good cam for a 383. Comparable to a 230/236 in a 346. Now you're getting cams that are more appropriately sized for excellent street/strip action. The earlier EVO you get from advancing your cam +4 will help reduce pumping losses on the spray. It will be good on a 150-200 shot.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
01-11-2009, 11:32 PM
#14
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241/245 .645 .633 114 +4 and direct port nitrous.The cam has good streetability and pulls hard when running NA.1.67 short = 10.57 @138.54 on spray.
Last edited by david vericker; 01-11-2009 at 11:42 PM.
01-12-2009, 07:55 AM
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01-12-2009, 08:31 AM
#17
I have no driveability issues at all with the 246 248. it seems really mild to me. I drive it about everynice day in the summer. I don't even think something like a 258 264 would bother me at all.
my car has a faceplated trans and spool so driveability isn't a huge concern
my car has a faceplated trans and spool so driveability isn't a huge concern
Last edited by 1BADAIR; 01-12-2009 at 09:03 AM.
01-12-2009, 08:57 AM
#18
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230/230 is not consider a large cam by 346 standards.I am not trying to knock your set up,however,you are leaving a lot of power on the table with such a small cam by 383 standards.If you would have went a bit larger on the duration side your power (HP/TQ) would have increased nicely with no loss of streetability.
