ETP 215* H/C results - Pictures
03-28-2006, 12:52 PM
#21
Bad bitch, I have some very similar number I need to post using the 215 ET heads and a 232/236 cam.
Little bit more power then you a little less torque.
I will post some more info in the next couple days.
Here's a little teaser.
Picked up 60 RWHP going ET 215's and fast 90/90 over the before combo with LS1 ported heads and a fast 78/78 combo.
Same cam, same everything else.
Little bit more power then you a little less torque.
I will post some more info in the next couple days.
Here's a little teaser.
Picked up 60 RWHP going ET 215's and fast 90/90 over the before combo with LS1 ported heads and a fast 78/78 combo.
Same cam, same everything else.
03-28-2006, 01:10 PM
#22
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your cam seems odd, also I noticed you have 640 lift on the intake? unless your springs have been changed you might be binding the factory springs, I think they are good for 620 max... did you put the dowel pins in the rails also?
03-28-2006, 01:11 PM
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Originally Posted by dubs6
Congrats. Let me know when you get everything finished and we will run'em (even though you have more power and weight less).
03-28-2006, 01:28 PM
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Originally Posted by JZ'sTA
Bad bitch, I have some very similar number I need to post using the 215 ET heads and a 232/236 cam.
Little bit more power then you a little less torque.
I will post some more info in the next couple days.
Here's a little teaser.
Picked up 60 RWHP going ET 215's and fast 90/90 over the before combo with LS1 ported heads and a fast 78/78 combo.
Same cam, same everything else.
Little bit more power then you a little less torque.
I will post some more info in the next couple days.
Here's a little teaser.
Picked up 60 RWHP going ET 215's and fast 90/90 over the before combo with LS1 ported heads and a fast 78/78 combo.
Same cam, same everything else.
After I get the valve spring issue taken care of it will probably make low to mid 460's. Remember, this is going through a C5 drivetrain which is less efficient then f-bodys. I still have some supporting mods that can put me in the 470 range!
03-28-2006, 01:29 PM
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Originally Posted by Nickn20
your cam seems odd, also I noticed you have 640 lift on the intake? unless your springs have been changed you might be binding the factory springs, I think they are good for 620 max... did you put the dowel pins in the rails also?
03-28-2006, 01:46 PM
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Originally Posted by CNB
That should make good power. Let us know the results.
It's about $3200 U.S. 
03-29-2006, 04:42 AM
#33
What valve instability do you speak of? Float? Are you running stock rockers?
What .650 springs are you running? installed height? open lb? seat lb?
I wonder if the valves are 'heavy'?
hrmmm... only reason I so curious is that I am getting some 215s here shortly w/ .650 springs and I would like to nip that problem before I have it.
What .650 springs are you running? installed height? open lb? seat lb?
I wonder if the valves are 'heavy'?
hrmmm... only reason I so curious is that I am getting some 215s here shortly w/ .650 springs and I would like to nip that problem before I have it.
03-29-2006, 08:32 AM
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Yes I'm talking about valve float and I reused the stock rockers. I using comp 977 springs that ETP installed on the heads. I was told I might have to shim the springs when using a cam with high lift like mine. This cam should pull to 6800 rpm easily but you can see it doesn't. That problem will be gone once I shim the springs.
03-29-2006, 08:40 AM
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Originally Posted by CNB
Yes I'm talking about valve float and I reused the stock rockers. I using comp 977 springs that ETP installed on the heads. I was told I might have to shim the springs when using a cam with high lift like mine. This cam should pull to 6800 rpm easily but you can see it doesn't. That problem will be gone once I shim the springs.
03-29-2006, 08:55 AM
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Thunder told me the same thing. Maybe they should tell ETP to stop using 977s as an upgrade and use 921s instead. I have to decide on shiming my current springs or replacing them with Comp 921s.
03-29-2006, 09:08 AM
#37
In their day Comp 977s were considered pretty killer. I'd try shimming them first. They'll last longer that way anyway (because you'll eliminate spring surge).
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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.
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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.
03-30-2006, 06:56 AM
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What spring do you have in your heads?
I think my ET heads are having issues with valve control also.
I have stock lifter with the 977 spring upgrade.
I maybe changing to Morel and PSI spring upgrade.
There is a lot more weight with the longer valves and pushrods.
I think my ET heads are having issues with valve control also.
I have stock lifter with the 977 spring upgrade.
I maybe changing to Morel and PSI spring upgrade.
There is a lot more weight with the longer valves and pushrods.