Halltech's ULZ700 ready for final weigh in
07-13-2012, 05:42 PM
#1
Supporting Vendor
Thread Starter
Member Since: Mar 2002
Location: Bristol, Tennessee
Posts: 12,988
Received 583 Likes
on
313 Posts
St. Jude Donor '09
Halltech's ULZ700 ready for final weigh in
Some of you may know that next week is our final weigh in and dyno fight with Katech Jason's Track Attack Z06.
Pics until then. This car will be at the Joliet Autobahn Katech Track Attack along side the Katech Monster. Who will win the weight/power ratio challenge?
The weight above is not our final weight. Next week we shave off 29 more lbs or more with the Halltech OS Giken clutch. 900lb-ft rated, 28 lbs vs. 56.4 lbs stock.
That should put our ULZ700 Z06 at 4.06 lbs/hp. Check out the new McLaren, Ferrari Italia, Lambo Aventador, 2012 Viper, Porsche Turbo, Nissan Turbo, and you will see that none of them come close to the weight/power ratio of the Halltech ULZ700.
You would have to spend 2 million dollars to buy a Bugatti Veyron to get a better weight/power ratio.
The new McLaren 5.20 lbs/hp by comparison.
Pics until then. This car will be at the Joliet Autobahn Katech Track Attack along side the Katech Monster. Who will win the weight/power ratio challenge?
The weight above is not our final weight. Next week we shave off 29 more lbs or more with the Halltech OS Giken clutch. 900lb-ft rated, 28 lbs vs. 56.4 lbs stock.
That should put our ULZ700 Z06 at 4.06 lbs/hp. Check out the new McLaren, Ferrari Italia, Lambo Aventador, 2012 Viper, Porsche Turbo, Nissan Turbo, and you will see that none of them come close to the weight/power ratio of the Halltech ULZ700.
You would have to spend 2 million dollars to buy a Bugatti Veyron to get a better weight/power ratio.
The new McLaren 5.20 lbs/hp by comparison.
__________________
"World Class Performance for your Corvette"
Intake Design and Engineering since 1999
Halltech Systems, LLC
262-510-7600
For service email:
orders@halltechsystems.com
www.halltechsystems.com
"World Class Performance for your Corvette"
Intake Design and Engineering since 1999
Halltech Systems, LLC
262-510-7600
For service email:
orders@halltechsystems.com
www.halltechsystems.com
07-14-2012, 10:32 AM
#3
Platinum Supporting Dealership
Now that is the ultimate street car hands down, a/c, full interior, stereo and wipers tons of power and so light two 10 year olds can pick it up.
__________________
YOUR CORVETTE SUPERSTORE SINCE 1988
CORVETTE WORLD HOUSTON
281-821-1222
http://corvetteworldhouston.com/
YOUR CORVETTE SUPERSTORE SINCE 1988
CORVETTE WORLD HOUSTON
281-821-1222
http://corvetteworldhouston.com/
07-14-2012, 01:49 PM
#4
Supporting Vendor
Thread Starter
Member Since: Mar 2002
Location: Bristol, Tennessee
Posts: 12,988
Received 583 Likes
on
313 Posts
St. Jude Donor '09
We sell these for $2989.00 900lb-ft rated. MORE
That will put us at 2836 lbs 1gallon; 2944 full of E85.
Final weight was 2836lb, but we have 10lbs coming off in about two weeks with a new set of headers we are developing. Never ends.
Last edited by Halltech; 08-02-2012 at 06:02 PM.
08-01-2012, 11:10 AM
#8
Supporting Vendor
Thread Starter
Member Since: Mar 2002
Location: Bristol, Tennessee
Posts: 12,988
Received 583 Likes
on
313 Posts
St. Jude Donor '09
The clutch was absolutely incredible. engagement right at the top, which makes shifting a breeze. The throughout bearing was far superior to the stock unit, made of very strong steel.
The pilot bearing temperature never got above 188F. We had a Katech thermalcoupler onboard for R&D.
The clutch saved 29lbs over the stock clutch. 28.2 lbs vs. 56.5lbs.
Jim
The pilot bearing temperature never got above 188F. We had a Katech thermalcoupler onboard for R&D.
The clutch saved 29lbs over the stock clutch. 28.2 lbs vs. 56.5lbs.
Jim
Last edited by Halltech; 08-01-2012 at 11:40 AM.
08-01-2012, 01:29 PM
#11
Instructor
Member Since: Sep 2007
Location: West Psalm Beach Florida
Posts: 216
Likes: 0
Received 0 Likes
on
0 Posts
08-01-2012, 01:42 PM
#12
Race Director
Member Since: Dec 2006
Location: Fort Worth, Texas
Posts: 11,122
Received 2,054 Likes
on
1,306 Posts
Awesome, have you redynoed since the clutch swap?
08-01-2012, 05:01 PM
#13
Supporting Vendor
Thread Starter
Member Since: Mar 2002
Location: Bristol, Tennessee
Posts: 12,988
Received 583 Likes
on
313 Posts
St. Jude Donor '09
The original dyno was not really very realistic, which I figured all along. Conversion factors aside, our car did 641 HP on the Katech engine dyno, which is the real number two years ago. Since then we have added an ATI damper, and some additional tuning, so 660 HP is very realistic. 700 is not.
The real number was 561 RWHP/525 lbs ft torque on the Dynojet. The wet bulb on the new dyno was seemed somewhat off, since it read 33% when it had rained that morning. 2834 lbs.
The wet bulb standard is 0%. Anything above that creates an upward correction factor.
Jasons car with heads and a 110 Torquer cam vs. our 116 cam did 569.7 RWHP on the same dyno the day before.
Jim
08-02-2012, 02:09 PM
#14
Race Director
Member Since: Dec 2006
Location: Fort Worth, Texas
Posts: 11,122
Received 2,054 Likes
on
1,306 Posts
I understand flywheel power to weight ratio hasn't changed, just curious to compare your rear wheel gains with mine when I dropped 24lbs off the rotating assembly with 22lb clutch.
08-02-2012, 02:18 PM
#15
Supporting Vendor
Thread Starter
Member Since: Mar 2002
Location: Bristol, Tennessee
Posts: 12,988
Received 583 Likes
on
313 Posts
St. Jude Donor '09
from lower rotation losses in the powertrain.
Someone should do back to back dynos on the chassis dyno A-B where just the clutch is changed.
Do you have numbers?
08-03-2012, 10:38 AM
#17
Race Director
Member Since: Dec 2006
Location: Fort Worth, Texas
Posts: 11,122
Received 2,054 Likes
on
1,306 Posts
You will definitely see gains, even more so than swapping lighter wheels...here are mine, I expect yours would be even greater
https://www.corvetteforum.com/performance-results/2697314-new-7-25-22-5lb-monster-twin-disc-clutch-testing.html
https://www.corvetteforum.com/performance-results/2697314-new-7-25-22-5lb-monster-twin-disc-clutch-testing.html