[Z06] Heads & Cam Results and Impression
05-05-2014, 10:37 PM
#1
Racer
Thread Starter
Heads & Cam Results and Impression
Huge thanks to the following:
- Gotjuice? (Arnold) for the meticulous and perfect install and advice. (and for catching a miss-manufactured lifter!)
- Corey at Henderson Performance Technologies for the tune/emergency parts/advice
- Carlos at Vette Air for the heads/headers
- CF members for providing a TON of information. This would have been impossible without the collective dissemination of knowledge on this board
This is 2006 that made ~430 rwhp stock (almost perfectly 15% drivetrain loss), added Halltech 103 + Corey Henderson Tune and made 479/445.
I wanted to get in front of the valve situation and gave consideration to a ton of strategies. I almost went with the Katech TiMo setup but couldn't justify the cost for my intended use. Almost did just the guides and milling but didn't want to mess with buying someone's heads and selling mine. Decided that adding a cam was something I should do now since I've always wanted a cammed Corvette (see my member since date...not sure if I even had my drivers license when I joined) and I don't have kids eating up all my resources.
I gave consideration to:
- Katech Torquer 116, 110, custom grind Torquer, and the new K501
- Ragin Racin Stalker and Lethal
- Lethal Phantom
- Texas Speed LS7S
- CMS custom grind 231/247
A forum member graciously allowed me to drive his T116 car and I found it difficult to even detect the cam. The T116 might be the perfect cam for some, but I wanted some 'wow-factor', which the T116 was missing.
Eventually settled on the off-the-shelf comp 231/247 113. I knew a priori that drivability was going to suffer a bit going with a 13 degree overlap cam and was willing to accept that.
Build ended up being:
- Intake: Halltech MF103
- Heads: WCCH-X heads (from Vette-Air) milled 0.025
- SS valves w/ BT dual springs
- Cam: 231/247 0.653/0.660 113 (281LRR HR13) off the shelf from Comp
- Headers: 1 7/8" American Racing Headers w/ Cats
- Exhaust: ZR1 axle back
Ended up with 557 rwhp and 492 rwtq. There was another ZO6 at HPT today with a more aggressive custom grind cam (from a different shop), FAST 102 & NW 102...IIRC I made 2 more whp up top, his had ~10 more rwtq/hp from 4500-6200. Corey said that the drivability of my car was far, far better than the custom grind car. Make sure you know what you're getting when you go with a custom grind...
Impression:
I'm very impressed. I'm very happy with the torque curve and the way the power ramps up steadily from 4k to 7k. The cam has a nice lope, will rock a bit from time to time at idle (not irritating in the least), and will wake everyone within 2 miles with the exhaust valves open. I can take 5th down to about 40 mph at steady throttle before there is some light surging. 6th gear is good to about 55-60 mph. I ran into stop and go construction traffic and parking lot situations today and it performed flawlessly.
The sound at WOT is absolutely addictive. It sounds like a different car above 3500 rpm [scream]. The only downside to the new-found power is that 1st, 2nd, and sometimes 3rd (depending on road surface) are not stomp-on-it gears anymore. The freeways can be kind of slick here - I got wheelspin today in 3rd gear at 70mph on one section without trying. Got on some grippy asphalt though and hooked 3rd gear from 60 to [more], what a rush!
Hopefully I don't blow through the tires too soon...
- Gotjuice? (Arnold) for the meticulous and perfect install and advice. (and for catching a miss-manufactured lifter!)
- Corey at Henderson Performance Technologies for the tune/emergency parts/advice
- Carlos at Vette Air for the heads/headers
- CF members for providing a TON of information. This would have been impossible without the collective dissemination of knowledge on this board
This is 2006 that made ~430 rwhp stock (almost perfectly 15% drivetrain loss), added Halltech 103 + Corey Henderson Tune and made 479/445.
I wanted to get in front of the valve situation and gave consideration to a ton of strategies. I almost went with the Katech TiMo setup but couldn't justify the cost for my intended use. Almost did just the guides and milling but didn't want to mess with buying someone's heads and selling mine. Decided that adding a cam was something I should do now since I've always wanted a cammed Corvette (see my member since date...not sure if I even had my drivers license when I joined) and I don't have kids eating up all my resources.
I gave consideration to:
- Katech Torquer 116, 110, custom grind Torquer, and the new K501
- Ragin Racin Stalker and Lethal
- Lethal Phantom
- Texas Speed LS7S
- CMS custom grind 231/247
A forum member graciously allowed me to drive his T116 car and I found it difficult to even detect the cam. The T116 might be the perfect cam for some, but I wanted some 'wow-factor', which the T116 was missing.
Eventually settled on the off-the-shelf comp 231/247 113. I knew a priori that drivability was going to suffer a bit going with a 13 degree overlap cam and was willing to accept that.
Build ended up being:
- Intake: Halltech MF103
- Heads: WCCH-X heads (from Vette-Air) milled 0.025
- SS valves w/ BT dual springs
- Cam: 231/247 0.653/0.660 113 (281LRR HR13) off the shelf from Comp
- Headers: 1 7/8" American Racing Headers w/ Cats
- Exhaust: ZR1 axle back
Ended up with 557 rwhp and 492 rwtq. There was another ZO6 at HPT today with a more aggressive custom grind cam (from a different shop), FAST 102 & NW 102...IIRC I made 2 more whp up top, his had ~10 more rwtq/hp from 4500-6200. Corey said that the drivability of my car was far, far better than the custom grind car. Make sure you know what you're getting when you go with a custom grind...
Impression:
I'm very impressed. I'm very happy with the torque curve and the way the power ramps up steadily from 4k to 7k. The cam has a nice lope, will rock a bit from time to time at idle (not irritating in the least), and will wake everyone within 2 miles with the exhaust valves open. I can take 5th down to about 40 mph at steady throttle before there is some light surging. 6th gear is good to about 55-60 mph. I ran into stop and go construction traffic and parking lot situations today and it performed flawlessly.
The sound at WOT is absolutely addictive. It sounds like a different car above 3500 rpm [scream]. The only downside to the new-found power is that 1st, 2nd, and sometimes 3rd (depending on road surface) are not stomp-on-it gears anymore. The freeways can be kind of slick here - I got wheelspin today in 3rd gear at 70mph on one section without trying. Got on some grippy asphalt though and hooked 3rd gear from 60 to [more], what a rush!
Hopefully I don't blow through the tires too soon...
05-05-2014, 10:40 PM
#2
Huge thanks to the following:
- Gotjuice? (Arnold) for the meticulous and perfect install and advice. (and for catching a miss-manufactured lifter!)
- Corey at Henderson Performance Technologies for the tune/emergency parts/advice
- Carlos at Vette Air for the heads/headers
- CF members for providing a TON of information. This would have been impossible without the collective dissemination of knowledge on this board
This is 2006 that made ~430 rwhp stock (almost perfectly 15% drivetrain loss), added Halltech 103 + Corey Henderson Tune and made 479/445.
I wanted to get in front of the valve situation and gave consideration to a ton of strategies. I almost went with the Katech TiMo setup but couldn't justify the cost for my intended use. Almost did just the guides and milling but didn't want to mess with buying someone's heads and selling mine. Decided that adding a cam was something I should do now since I've always wanted a cammed Corvette (see my member since date...not sure if I even had my drivers license when I joined) and I don't have kids eating up all my resources.
I gave consideration to:
- Katech Torquer 116, 110, custom grind Torquer, and the new K501
- Ragin Racin Stalker and Lethal
- Lethal Phantom
- Texas Speed LS7S
- CMS custom grind 231/247
A forum member graciously allowed me to drive his T116 car and I found it difficult to even detect the cam. The T116 might be the perfect cam for some, but I wanted some 'wow-factor', which the T116 was missing.
Eventually settled on the off-the-shelf comp 231/247 113. I knew a priori that drivability was going to suffer a bit going with a 13 degree overlap cam and was willing to accept that.
Build ended up being:
- Intake: Halltech MF103
- Heads: WCCH-X heads (from Vette-Air) milled 0.025
- SS valves w/ BT dual springs
- Cam: 231/247 0.653/0.660 113 (281LRR HR13) off the shelf from Comp
- Headers: 1 7/8" American Racing Headers w/ Cats
- Exhaust: ZR1 axle back
Ended up with 557 rwhp and 492 rwtq. There was another ZO6 at HPT today with a more aggressive custom grind cam (from a different shop), FAST 102 & NW 102...IIRC I made 2 more whp up top, his had ~10 more rwtq/hp from 4500-6200. Corey said that the drivability of my car was far, far better than the custom grind car. Make sure you know what you're getting when you go with a custom grind...
Impression:
I'm very impressed. I'm very happy with the torque curve and the way the power ramps up steadily from 4k to 7k. The cam has a nice lope, will rock a bit from time to time at idle (not irritating in the least), and will wake everyone within 2 miles with the exhaust valves open. I can take 5th down to about 40 mph at steady throttle before there is some light surging. 6th gear is good to about 55-60 mph. I ran into stop and go construction traffic and parking lot situations today and it performed flawlessly.
The sound at WOT is absolutely addictive. It sounds like a different car above 3500 rpm [scream]. The only downside to the new-found power is that 1st, 2nd, and sometimes 3rd (depending on road surface) are not stomp-on-it gears anymore. The freeways can be kind of slick here - I got wheelspin today in 3rd gear at 70mph on one section without trying. Got on some grippy asphalt though and hooked 3rd gear from 60 to [more], what a rush!
Hopefully I don't blow through the tires too soon...
- Gotjuice? (Arnold) for the meticulous and perfect install and advice. (and for catching a miss-manufactured lifter!)
- Corey at Henderson Performance Technologies for the tune/emergency parts/advice
- Carlos at Vette Air for the heads/headers
- CF members for providing a TON of information. This would have been impossible without the collective dissemination of knowledge on this board
This is 2006 that made ~430 rwhp stock (almost perfectly 15% drivetrain loss), added Halltech 103 + Corey Henderson Tune and made 479/445.
I wanted to get in front of the valve situation and gave consideration to a ton of strategies. I almost went with the Katech TiMo setup but couldn't justify the cost for my intended use. Almost did just the guides and milling but didn't want to mess with buying someone's heads and selling mine. Decided that adding a cam was something I should do now since I've always wanted a cammed Corvette (see my member since date...not sure if I even had my drivers license when I joined) and I don't have kids eating up all my resources.
I gave consideration to:
- Katech Torquer 116, 110, custom grind Torquer, and the new K501
- Ragin Racin Stalker and Lethal
- Lethal Phantom
- Texas Speed LS7S
- CMS custom grind 231/247
A forum member graciously allowed me to drive his T116 car and I found it difficult to even detect the cam. The T116 might be the perfect cam for some, but I wanted some 'wow-factor', which the T116 was missing.
Eventually settled on the off-the-shelf comp 231/247 113. I knew a priori that drivability was going to suffer a bit going with a 13 degree overlap cam and was willing to accept that.
Build ended up being:
- Intake: Halltech MF103
- Heads: WCCH-X heads (from Vette-Air) milled 0.025
- SS valves w/ BT dual springs
- Cam: 231/247 0.653/0.660 113 (281LRR HR13) off the shelf from Comp
- Headers: 1 7/8" American Racing Headers w/ Cats
- Exhaust: ZR1 axle back
Ended up with 557 rwhp and 492 rwtq. There was another ZO6 at HPT today with a more aggressive custom grind cam (from a different shop), FAST 102 & NW 102...IIRC I made 2 more whp up top, his had ~10 more rwtq/hp from 4500-6200. Corey said that the drivability of my car was far, far better than the custom grind car. Make sure you know what you're getting when you go with a custom grind...
Impression:
I'm very impressed. I'm very happy with the torque curve and the way the power ramps up steadily from 4k to 7k. The cam has a nice lope, will rock a bit from time to time at idle (not irritating in the least), and will wake everyone within 2 miles with the exhaust valves open. I can take 5th down to about 40 mph at steady throttle before there is some light surging. 6th gear is good to about 55-60 mph. I ran into stop and go construction traffic and parking lot situations today and it performed flawlessly.
The sound at WOT is absolutely addictive. It sounds like a different car above 3500 rpm [scream]. The only downside to the new-found power is that 1st, 2nd, and sometimes 3rd (depending on road surface) are not stomp-on-it gears anymore. The freeways can be kind of slick here - I got wheelspin today in 3rd gear at 70mph on one section without trying. Got on some grippy asphalt though and hooked 3rd gear from 60 to [more], what a rush!
Hopefully I don't blow through the tires too soon...
05-05-2014, 10:48 PM
#3
Drifting
nice!! similar numbers to what I would like to see. My powertrain warranty ends in Jan. I think this winter will be "head fix" along with cam and supporting goodies.
05-05-2014, 10:57 PM
#4
Former Vendor
Thanks,
Carlos
05-05-2014, 10:58 PM
#5
Former Vendor
Huge thanks to the following:
- Gotjuice? (Arnold) for the meticulous and perfect install and advice. (and for catching a miss-manufactured lifter!)
- Corey at Henderson Performance Technologies for the tune/emergency parts/advice
- Carlos at Vette Air for the heads/headers
- CF members for providing a TON of information. This would have been impossible without the collective dissemination of knowledge on this board
This is 2006 that made ~430 rwhp stock (almost perfectly 15% drivetrain loss), added Halltech 103 + Corey Henderson Tune and made 479/445.
I wanted to get in front of the valve situation and gave consideration to a ton of strategies. I almost went with the Katech TiMo setup but couldn't justify the cost for my intended use. Almost did just the guides and milling but didn't want to mess with buying someone's heads and selling mine. Decided that adding a cam was something I should do now since I've always wanted a cammed Corvette (see my member since date...not sure if I even had my drivers license when I joined) and I don't have kids eating up all my resources.
I gave consideration to:
- Katech Torquer 116, 110, custom grind Torquer, and the new K501
- Ragin Racin Stalker and Lethal
- Lethal Phantom
- Texas Speed LS7S
- CMS custom grind 231/247
A forum member graciously allowed me to drive his T116 car and I found it difficult to even detect the cam. The T116 might be the perfect cam for some, but I wanted some 'wow-factor', which the T116 was missing.
Eventually settled on the off-the-shelf comp 231/247 113. I knew a priori that drivability was going to suffer a bit going with a 13 degree overlap cam and was willing to accept that.
Build ended up being:
- Intake: Halltech MF103
- Heads: WCCH-X heads (from Vette-Air) milled 0.025
- SS valves w/ BT dual springs
- Cam: 231/247 0.653/0.660 113 (281LRR HR13) off the shelf from Comp
- Headers: 1 7/8" American Racing Headers w/ Cats
- Exhaust: ZR1 axle back
Ended up with 557 rwhp and 492 rwtq. There was another ZO6 at HPT today with a more aggressive custom grind cam (from a different shop), FAST 102 & NW 102...IIRC I made 2 more whp up top, his had ~10 more rwtq/hp from 4500-6200. Corey said that the drivability of my car was far, far better than the custom grind car. Make sure you know what you're getting when you go with a custom grind...
Impression:
I'm very impressed. I'm very happy with the torque curve and the way the power ramps up steadily from 4k to 7k. The cam has a nice lope, will rock a bit from time to time at idle (not irritating in the least), and will wake everyone within 2 miles with the exhaust valves open. I can take 5th down to about 40 mph at steady throttle before there is some light surging. 6th gear is good to about 55-60 mph. I ran into stop and go construction traffic and parking lot situations today and it performed flawlessly.
The sound at WOT is absolutely addictive. It sounds like a different car above 3500 rpm [scream]. The only downside to the new-found power is that 1st, 2nd, and sometimes 3rd (depending on road surface) are not stomp-on-it gears anymore. The freeways can be kind of slick here - I got wheelspin today in 3rd gear at 70mph on one section without trying. Got on some grippy asphalt though and hooked 3rd gear from 60 to [more], what a rush!
Hopefully I don't blow through the tires too soon...
- Gotjuice? (Arnold) for the meticulous and perfect install and advice. (and for catching a miss-manufactured lifter!)
- Corey at Henderson Performance Technologies for the tune/emergency parts/advice
- Carlos at Vette Air for the heads/headers
- CF members for providing a TON of information. This would have been impossible without the collective dissemination of knowledge on this board
This is 2006 that made ~430 rwhp stock (almost perfectly 15% drivetrain loss), added Halltech 103 + Corey Henderson Tune and made 479/445.
I wanted to get in front of the valve situation and gave consideration to a ton of strategies. I almost went with the Katech TiMo setup but couldn't justify the cost for my intended use. Almost did just the guides and milling but didn't want to mess with buying someone's heads and selling mine. Decided that adding a cam was something I should do now since I've always wanted a cammed Corvette (see my member since date...not sure if I even had my drivers license when I joined) and I don't have kids eating up all my resources.
I gave consideration to:
- Katech Torquer 116, 110, custom grind Torquer, and the new K501
- Ragin Racin Stalker and Lethal
- Lethal Phantom
- Texas Speed LS7S
- CMS custom grind 231/247
A forum member graciously allowed me to drive his T116 car and I found it difficult to even detect the cam. The T116 might be the perfect cam for some, but I wanted some 'wow-factor', which the T116 was missing.
Eventually settled on the off-the-shelf comp 231/247 113. I knew a priori that drivability was going to suffer a bit going with a 13 degree overlap cam and was willing to accept that.
Build ended up being:
- Intake: Halltech MF103
- Heads: WCCH-X heads (from Vette-Air) milled 0.025
- SS valves w/ BT dual springs
- Cam: 231/247 0.653/0.660 113 (281LRR HR13) off the shelf from Comp
- Headers: 1 7/8" American Racing Headers w/ Cats
- Exhaust: ZR1 axle back
Ended up with 557 rwhp and 492 rwtq. There was another ZO6 at HPT today with a more aggressive custom grind cam (from a different shop), FAST 102 & NW 102...IIRC I made 2 more whp up top, his had ~10 more rwtq/hp from 4500-6200. Corey said that the drivability of my car was far, far better than the custom grind car. Make sure you know what you're getting when you go with a custom grind...
Impression:
I'm very impressed. I'm very happy with the torque curve and the way the power ramps up steadily from 4k to 7k. The cam has a nice lope, will rock a bit from time to time at idle (not irritating in the least), and will wake everyone within 2 miles with the exhaust valves open. I can take 5th down to about 40 mph at steady throttle before there is some light surging. 6th gear is good to about 55-60 mph. I ran into stop and go construction traffic and parking lot situations today and it performed flawlessly.
The sound at WOT is absolutely addictive. It sounds like a different car above 3500 rpm [scream]. The only downside to the new-found power is that 1st, 2nd, and sometimes 3rd (depending on road surface) are not stomp-on-it gears anymore. The freeways can be kind of slick here - I got wheelspin today in 3rd gear at 70mph on one section without trying. Got on some grippy asphalt though and hooked 3rd gear from 60 to [more], what a rush!
Hopefully I don't blow through the tires too soon...
NICE!!!!
Now you can beat on it without worrying about dropping a valve and such
Thanks again for allowing us to serve you.
Carlos
05-05-2014, 11:03 PM
#6
Drifting
Already have the Widow-R can picked out. Definitely what I want to do. By far my favorite cam that I have found. Just waiting until I can pull the heads and do the cam all at the same time. Next winter seems like the best time to do it!
05-05-2014, 11:07 PM
#7
Racer
Thread Starter
05-05-2014, 11:58 PM
#9
Pro
Very nice. I got very similar results with my H/C setup. I wanted a moderate setup and nothing too crazy on the cam. I went with a 234/246 .612/.598 on 115. Car drives fine in low RPM's.
Mine pulled 556/503 SAE. We have very similar mods.
Man the car is a blast to drive around!!
Mine pulled 556/503 SAE. We have very similar mods.
Man the car is a blast to drive around!!
05-06-2014, 08:01 AM
#11
Racer
Thread Starter
My eventual plan is to do some HPDE and open road races, but I'm probably sticking with mile races until I get new brakes and tires.
05-06-2014, 08:03 AM
#12
Racer
Thread Starter
05-06-2014, 09:29 AM
#15
Safety Car
Enjoy your new power!
05-06-2014, 09:49 AM
#16
Team Owner
We were planning on re-using the stock lifters. Arnold took the stock ones out and put them in a box during disassembly. When he went to put them back in the engine on buildup he noticed a roller laying in the box. It looks like the roller pin was only pressed on one side. You could push against the pin from one side and it wouldn't budge, but push from the other side and it slid right out. We flipped the pin 180° and same result, on the other side.
My eventual plan is to do some HPDE and open road races, but I'm probably sticking with mile races until I get new brakes and tires.
My eventual plan is to do some HPDE and open road races, but I'm probably sticking with mile races until I get new brakes and tires.
I'm sure mile is fun but road racing is a blast for 20-30 minutes without stopping.
DH
05-06-2014, 01:28 PM
#18
Racer
Thread Starter
Thanks for the responses, all. I'm counting the seconds till I can leave my desk and go for a ride!
I don't know, I personally never put much trust in any dyno numbers since there is so much variability in terms of dyno setup, weather, operator, "tricks", etc...
I'll try to get out to the strip sometime soon to see what she does, but it probably won't be impressive on my run flats. I'm going to miss the wannagofast event this summer, but I'll probably go to Texas mile in October to really stretch her legs.
I'd think these numbers would be pretty accurate considering I did 430 rwhp there stock last year in similar weather.
Anyway, I'll ask Corey for the SAE corrected numbers.
I'll try to get out to the strip sometime soon to see what she does, but it probably won't be impressive on my run flats. I'm going to miss the wannagofast event this summer, but I'll probably go to Texas mile in October to really stretch her legs.
I'd think these numbers would be pretty accurate considering I did 430 rwhp there stock last year in similar weather.
Anyway, I'll ask Corey for the SAE corrected numbers.
05-06-2014, 05:07 PM
#20
Burning Brakes
Thanks for the responses, all. I'm counting the seconds till I can leave my desk and go for a ride!
I don't know, I personally never put much trust in any dyno numbers since there is so much variability in terms of dyno setup, weather, operator, "tricks", etc...
I'll try to get out to the strip sometime soon to see what she does, but it probably won't be impressive on my run flats. I'm going to miss the wannagofast event this summer, but I'll probably go to Texas mile in October to really stretch her legs.
I'd think these numbers would be pretty accurate considering I did 430 rwhp there stock last year in similar weather.
Anyway, I'll ask Corey for the SAE corrected numbers.
I don't know, I personally never put much trust in any dyno numbers since there is so much variability in terms of dyno setup, weather, operator, "tricks", etc...
I'll try to get out to the strip sometime soon to see what she does, but it probably won't be impressive on my run flats. I'm going to miss the wannagofast event this summer, but I'll probably go to Texas mile in October to really stretch her legs.
I'd think these numbers would be pretty accurate considering I did 430 rwhp there stock last year in similar weather.
Anyway, I'll ask Corey for the SAE corrected numbers.
Last edited by ToppThat; 05-06-2014 at 05:13 PM.