thinking about a lil more cam, tell me what ya think...
#1
thinking about a lil more cam, tell me what ya think...
current cam COMP LSL 247/255 113+2. ok, but I think this engine could use a bit more. thinking about a COMP LSL 255/259 115+2. I am trying to peak power at 5000 and up. There is no shortage of low end torque, so not real worried about that. Anyone tried this cam in a 416? Or has anyone worked with a 115 LSA?
I've got one cam company saying, 257/259 116+4, 650 lift. I'm a little concerned about the loss of scavenging with the wider lobes.
car runs low 130.X normally. last trip out a few 11.0s, crappy shifting. I'm mainly interested in top end power, more mph. ET will follow.
Comments?
I've got one cam company saying, 257/259 116+4, 650 lift. I'm a little concerned about the loss of scavenging with the wider lobes.
car runs low 130.X normally. last trip out a few 11.0s, crappy shifting. I'm mainly interested in top end power, more mph. ET will follow.
Comments?
#3
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i don't think that cam will pick up alot. the intake is already a restriction imo. it might be able to let you carry more rpm with the slightly wider lsa and more duration though but it will not gain much hp. just my .02
#4
a solid is not out of the question. I'm trying to sift through data, yet it seems very sparse. I would like to get a confirmation from someone that has tested a larger lobe with wider LSA. I guess in the end, I am headed for a solid and should just probably go ahead and do it.
I like looking at data from experimentation.
I like looking at data from experimentation.
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you might be better off getting one of those cams that has the solid roller lobes but uses hydraulic lifters. also if you don't mind giving up probably 20-30 rwtq to pick up top end a vic jr with the right cam should put some top end hp.
#6
You got a link to those lobes? I've got a pretty high seat pressure on my springs now, that might work.
#7
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The intake manifold will force a power peak of around 6300 rpm regardless of the cam you choose. Of course, you can cheat a later power peak with more duration, but it will not be in harmony with the tuned runner length and cross sectional area of your FAST 90.
Better solution would be to get an intake manifold with shorter runners. A custom sheet metal intake would be the best solution for a Vette with a low hood.
Better solution would be to get an intake manifold with shorter runners. A custom sheet metal intake would be the best solution for a Vette with a low hood.
__________________
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
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
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
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
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#8
The intake manifold will force a power peak of around 6300 rpm regardless of the cam you choose. Of course, you can cheat a later power peak with more duration, but it will not be in harmony with the tuned runner length and cross sectional area of your FAST 90.
Better solution would be to get an intake manifold with shorter runners. A custom sheet metal intake would be the best solution for a Vette with a low hood.
Better solution would be to get an intake manifold with shorter runners. A custom sheet metal intake would be the best solution for a Vette with a low hood.
Now, when you say runner length. Does the distance from the air filter to the TB count? If I removed that entire section and filtered the TB only (I'm SD tuned), would that help? I could move the IAT to the top of the intake or somewhere else.
Hymey, regarding the previous info on a Victor Jr. Were you talking about going carb'd or do I just throw my TB on the carb hole.
#9
LS1 Tech Administrator
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Beck is one of the better companies for making a custom LSX cathedral port sheet metal intake to fit a Vette. Wilson and Hogan are two other companies to research. Beck has done a ton of vehicles on this board including many record setters.
__________________
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
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
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
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
#10
#11
LS1 Tech Administrator
iTrader: (14)
this the one?
http://www.beckmechanical.com/intakes/ls1.htm
http://www.beckmechanical.com/intakes/ls1.htm
__________________
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
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
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
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
#12
thanks.
update:
d! the guy that put my plugs in gapped all of them 0.015" off from my spec.
He did that to me once before. No kidding, when I corrected them, I actually gained a few mph at the track. Its amazing what you can get just tweaking this and that, checking intake bolts, etc.
update:
d! the guy that put my plugs in gapped all of them 0.015" off from my spec.
He did that to me once before. No kidding, when I corrected them, I actually gained a few mph at the track. Its amazing what you can get just tweaking this and that, checking intake bolts, etc.