[Z06] ACP World Challenge louvered hood
11-01-2009, 01:01 PM
#1
ACP World Challenge louvered hood
ACP C6 three louvered fiberglass World challenge hood $1595.00
Excellent fit, smooth inside, primed ready to paint.
In stock ready to ship!
Also avaliable in carbon fiber for $2350.00 (custom built)
Free shipping anywhere in the continental United States until the end of November 2009.
To order call Winnie at 800-832-8624.
For technical information email Kerry at kerry@acproducts.us.
Excellent fit, smooth inside, primed ready to paint.
In stock ready to ship!
Also avaliable in carbon fiber for $2350.00 (custom built)
Free shipping anywhere in the continental United States until the end of November 2009.
To order call Winnie at 800-832-8624.
For technical information email Kerry at kerry@acproducts.us.
11-01-2009, 01:38 PM
#3
The FG hood although heavier, will give you a much better paint finish.
The CF hood looks good too but when painted you will see a slight imprint of the carbon fiber weave and honeycomb as you look across the hood.
If you want pure performance the CF is the way to go however the aero function and added cooling is exactly the same for both hoods.
11-01-2009, 01:54 PM
#6
Le Mans Master
11-01-2009, 02:26 PM
#7
Burning Brakes
The CF hood is about 22 pounds lighter.
The FG hood although heavier, will give you a much better paint finish.
The CF hood looks good too but when painted you will see a slight imprint of the carbon fiber weave and honeycomb as you look across the hood.
If you want pure performance the CF is the way to go however the aero function and added cooling is exactly the same for both hoods.
The FG hood although heavier, will give you a much better paint finish.
The CF hood looks good too but when painted you will see a slight imprint of the carbon fiber weave and honeycomb as you look across the hood.
If you want pure performance the CF is the way to go however the aero function and added cooling is exactly the same for both hoods.
Actually it's kind of strange to hold that sized panel off the ground so easily.
Even the FG one is lighter and more performance functional than stock, IMO.
11-01-2009, 02:33 PM
#8
Safety Car
11-02-2009, 03:38 PM
#10
11-02-2009, 05:05 PM
#11
We never did a test with just the hood but we did test with the hood and 2 inch front splitter with the undertray and we had about 475 pounds of downforce. We added a one quarter lip to the leading edges of the front louvers on the hood and gained over 30 pounds of downforce. In the world of wind tunnel testing that is a huge gain!
I have spoken to a number of customers who have noticed a significant improvement in reducing front undrsteer after installing the hood. As for drag, we are in the .46 area and it did not change much through the test.
One other thing that is significant I might add, is the under hood temperature.
In the GM computer control world, IAT's (internal air temperature) are a big dictator of potential engine performance as higher temp readings will result in richer AFR and timing being dialled out to avoid detonation.
That being said when you are sitting at a light, even for a short time, you are going to lose performance due to the increased ITA.
I have spoken to a number of customers who have noticed a significant improvement in reducing front undrsteer after installing the hood. As for drag, we are in the .46 area and it did not change much through the test.
One other thing that is significant I might add, is the under hood temperature.
In the GM computer control world, IAT's (internal air temperature) are a big dictator of potential engine performance as higher temp readings will result in richer AFR and timing being dialled out to avoid detonation.
That being said when you are sitting at a light, even for a short time, you are going to lose performance due to the increased ITA.
11-02-2009, 09:06 PM
#12
Le Mans Master
We never did a test with just the hood but we did test with the hood and 2 inch front splitter with the undertray and we had about 475 pounds of downforce. We added a one quarter lip to the leading edges of the front louvers on the hood and gained over 30 pounds of downforce. In the world of wind tunnel testing that is a huge gain!
I have spoken to a number of customers who have noticed a significant improvement in reducing front undrsteer after installing the hood. As for drag, we are in the .46 area and it did not change much through the test.
One other thing that is significant I might add, is the under hood temperature.
In the GM computer control world, IAT's (internal air temperature) are a big dictator of potential engine performance as higher temp readings will result in richer AFR and timing being dialled out to avoid detonation.
That being said when you are sitting at a light, even for a short time, you are going to lose performance due to the increased ITA.
I have spoken to a number of customers who have noticed a significant improvement in reducing front undrsteer after installing the hood. As for drag, we are in the .46 area and it did not change much through the test.
One other thing that is significant I might add, is the under hood temperature.
In the GM computer control world, IAT's (internal air temperature) are a big dictator of potential engine performance as higher temp readings will result in richer AFR and timing being dialled out to avoid detonation.
That being said when you are sitting at a light, even for a short time, you are going to lose performance due to the increased ITA.
Thanks,
Jim
11-03-2009, 05:58 AM
#14
Hi Jim,
I have heard reports that range from ten to twenty degrees.
It seems that the hotter part of the country the higher the temp drop.
It could also be that if you produce more heat under your hood with headers or a turbo, you will see a larger drop.
I hope that helps answer your question.
Thanks for asking!
Kerry
I have heard reports that range from ten to twenty degrees.
It seems that the hotter part of the country the higher the temp drop.
It could also be that if you produce more heat under your hood with headers or a turbo, you will see a larger drop.
I hope that helps answer your question.
Thanks for asking!
Kerry
11-03-2009, 06:06 AM
#15
I am pretty sure that it is not any heavier, however I will weigh them both and let you know.
11-03-2009, 03:01 PM
#16
Le Mans Master
Hi Jim,
I have heard reports that range from ten to twenty degrees.
It seems that the hotter part of the country the higher the temp drop.
It could also be that if you produce more heat under your hood with headers or a turbo, you will see a larger drop.
I hope that helps answer your question.
Thanks for asking!
Kerry
I have heard reports that range from ten to twenty degrees.
It seems that the hotter part of the country the higher the temp drop.
It could also be that if you produce more heat under your hood with headers or a turbo, you will see a larger drop.
I hope that helps answer your question.
Thanks for asking!
Kerry
I have seen a couple of hoods that have vents at the rear toward the wind shield. Doesn't this force air into the engine compartment? I really like the design of your hood.
Jim
11-03-2009, 03:40 PM
#17
Melting Slicks
Thanks Kerry!
Just ordered mine in FG.
I will report back to the board regarding turnaround time, delivery condition, fit and finish..and of course will post pics ASAP.
Just ordered mine in FG.
I will report back to the board regarding turnaround time, delivery condition, fit and finish..and of course will post pics ASAP.
11-03-2009, 10:47 PM
#18
Racer
Member Since: Sep 2007
Location: sf bay area California
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curious how much you being quoted to prep, paint to match and install on your car ?
Last edited by neveo; 11-03-2009 at 10:50 PM.
11-03-2009, 10:53 PM
#19
Racer
Member Since: Sep 2007
Location: sf bay area California
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im about ready to order one in FG ,,, what precautions would i need to take when i wash the car? do i need to cover the fuse box and alternator when i hose it and rinse it?
11-03-2009, 11:13 PM
#20
Thanks, Kerry. I have a Katech Street Attack and I will try it our next year at the track. If I have a heating issue, and I probably will, I am getting one of your hoods.
I have seen a couple of hoods that have vents at the rear toward the wind shield. Doesn't this force air into the engine compartment? I really like the design of your hood.
Jim
I have seen a couple of hoods that have vents at the rear toward the wind shield. Doesn't this force air into the engine compartment? I really like the design of your hood.
Jim
You are right, with other hoods the vents at the rear of the hood are in a high pressure area and the faster you go the harder it is to move the air out from under the hood.
A lot of work went into the design to make it right.
I have to thank Tom Froling along with the rest of the aero department at GM for the great advice in doing the hood and the rest of the bodywork.
Let me know when you are ready, I'll be glad to put your name on one!
Remember, if you are ready before the end of November the freight is free!
Thanks,
Kerry