[Z06] WCCH Stage II Heads Dyno Results...porting & 0.020" milling
02-17-2014, 11:34 AM
#1
Pro
Thread Starter
Some of you may have followed my thread on my wiggle test results and decision process on how to deal with it: http://forums.corvetteforum.com/c6-z...next-step.html
And the wiggle test vs dial bore gauge test results: http://forums.corvetteforum.com/c6-z...n-results.html
I decided to send my stock heads to WCCH for their Stage II program including:
- REV Solid Stanless Steel exhaust valves
- Bronze valve guides
- Brian Tooley Platinum Dual Spring Kit
- Porting
- Milling of 0.020"
It was roughly 10 business days that WCCH had the heads before they shipped them back to me. They were a pleasure to work with. Richard said the milling of 0.020" would put me around 11.25:1 compression ratio and should be fine with the stock pushrods - my installer checked the pushrod length and for me the stock length pushrods worked fine with no need to change.
Head Work Costs:
$700 - Porting (optional)
$25 - Valve Guide Measurements (optional)
$150 - REV Solid Stainless Steel Exhaust Valves (you choose)
$325 - BT Platinum Dual Spring kit .660" lift (you choose)
$95 - Bronze Valve Guides
$600 - Misc Standard Services (Cleaning, surface milling, tumble polish intake valves, install new guides, assemble)
$xx - shipping (mine was $100 from CA to eastern PA)
Total: $1895 + shipping
Results:
Original Stock Baseline: 461/439
Headers &Tune: 493/472 (+32/33)
WCCH Heads & Re-Tune: 520/489 (+27/17)
The final results were 520 rwhp / 489 rwtq. Gain of 27 rwhp / 17 rwtq from the heads & re-tune, and this is still with the stock cam:
I am happy with the results and can't wait until the snow melts in SE PA and I can get this car back on the road.
And the wiggle test vs dial bore gauge test results: http://forums.corvetteforum.com/c6-z...n-results.html
I decided to send my stock heads to WCCH for their Stage II program including:
- REV Solid Stanless Steel exhaust valves
- Bronze valve guides
- Brian Tooley Platinum Dual Spring Kit
- Porting
- Milling of 0.020"
It was roughly 10 business days that WCCH had the heads before they shipped them back to me. They were a pleasure to work with. Richard said the milling of 0.020" would put me around 11.25:1 compression ratio and should be fine with the stock pushrods - my installer checked the pushrod length and for me the stock length pushrods worked fine with no need to change.
Head Work Costs:
$700 - Porting (optional)
$25 - Valve Guide Measurements (optional)
$150 - REV Solid Stainless Steel Exhaust Valves (you choose)
$325 - BT Platinum Dual Spring kit .660" lift (you choose)
$95 - Bronze Valve Guides
$600 - Misc Standard Services (Cleaning, surface milling, tumble polish intake valves, install new guides, assemble)
$xx - shipping (mine was $100 from CA to eastern PA)
Total: $1895 + shipping
Results:
Original Stock Baseline: 461/439
Headers &Tune: 493/472 (+32/33)
WCCH Heads & Re-Tune: 520/489 (+27/17)
The final results were 520 rwhp / 489 rwtq. Gain of 27 rwhp / 17 rwtq from the heads & re-tune, and this is still with the stock cam:
I am happy with the results and can't wait until the snow melts in SE PA and I can get this car back on the road.
Last edited by ctsv510; 02-18-2014 at 07:55 AM.
02-17-2014, 12:52 PM
#4
Safety Car
02-17-2014, 05:31 PM
#14
Le Mans Master
Some of you may have followed my thread on my wiggle test results and decision process on how to deal with it: http://forums.corvetteforum.com/c6-z...next-step.html
And the wiggle test vs dial bore gauge test results: http://forums.corvetteforum.com/c6-z...n-results.html
I decided to send my stock heads to WCCH for their Stage II program including:
- REV Solid Stanless Steel exhaust valves
- Bronze valve guides
- Brian Tooley Platinum Dual Spring Kit
- Porting
- Milling of 0.020"
It was roughly 10 business days that WCCH had the heads before they shipped them back to me. They were a pleasure to work with. Richard said the milling of 0.020" would put be around 11.25:1 compression ratio and should be fine with the stock pushrods - my installer checked the pushrod length and for me the stock length pushrods worked fine with no need to change.
Results:
Original Stock Baseline: 461/439
Headers &Tune: 493/472 (+32/33)
WCCH Heads & Re-Tune: 520/489 (+27/17)
The final results were 520 rwhp / 489 rwtq. Gain of 27 rwhp / 17 rwtq from the heads & re-tune, and this is still with the stock cam:
I am happy with the results and can't wait until the snow melts in SE PA and I can get this car back on the road.
And the wiggle test vs dial bore gauge test results: http://forums.corvetteforum.com/c6-z...n-results.html
I decided to send my stock heads to WCCH for their Stage II program including:
- REV Solid Stanless Steel exhaust valves
- Bronze valve guides
- Brian Tooley Platinum Dual Spring Kit
- Porting
- Milling of 0.020"
It was roughly 10 business days that WCCH had the heads before they shipped them back to me. They were a pleasure to work with. Richard said the milling of 0.020" would put be around 11.25:1 compression ratio and should be fine with the stock pushrods - my installer checked the pushrod length and for me the stock length pushrods worked fine with no need to change.
Results:
Original Stock Baseline: 461/439
Headers &Tune: 493/472 (+32/33)
WCCH Heads & Re-Tune: 520/489 (+27/17)
The final results were 520 rwhp / 489 rwtq. Gain of 27 rwhp / 17 rwtq from the heads & re-tune, and this is still with the stock cam:
I am happy with the results and can't wait until the snow melts in SE PA and I can get this car back on the road.
Thanks
02-17-2014, 06:02 PM
#15
Team Owner
That's awesome! Great numbers man.
02-17-2014, 08:26 PM
#16
Pro
Thread Starter
Thanks!
Next winter
02-21-2014, 04:43 PM
#19
Safety Car
http://forums.corvetteforum.com/c6-t...oductions.html
What are you waiting for
02-21-2014, 05:14 PM
#20
You know I would be very intrigued to see your car with CAI like this one and have your TB and intake sent to Peak for there radical porting. You could potentially add another 30+ rhwp and rwtq on the stock cam!! I would like to see if the stock cam could reach 550rwhp!
http://forums.corvetteforum.com/c6-t...oductions.html
What are you waiting for
http://forums.corvetteforum.com/c6-t...oductions.html
What are you waiting for
He might pick up more horsepower if he hogs out his throttle body and intake manifold. But what is it going idle and to drive like?
Last edited by '06 Quicksilver Z06; 02-21-2014 at 05:19 PM.