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View Poll Results: ZL1 or GT500, Which one would you get?
ZL1 5 35.71%
GT500 9 64.29%
Voters: 14. You may not vote on this poll

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Old 06-09-2012, 04:36 PM   #2661
evh5150vanhalen
 
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Originally Posted by Fenderaddict2 View Post
Never get it for that here :-(
Yeah, dealers up there are prob selling over sticker, the dealer i was at still has like 3 brand new 2011 gt500's for 10k below sticker.
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Old 06-09-2012, 05:22 PM   #2662
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Originally Posted by sho928 View Post
http://www.youtube.com/watch?feature...&v=cjBmxblRmhs

Here is a TT Ford, it also shows the potential the 5.4/5.8 has
That's just sick...

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Originally Posted by 8cd03gro View Post
Do you have all your hot-side piping wrapped and/or coated? How about turbo blanket(s)? I spent a lot of time wrapping and coating hot-side components and with my turbo blanket and phenolic spacers on the intake manifold I can touch my intercooler (mounted on top of the engine, right above the turbo) and intake manifold bare-handed after spirited driving. Before all the heat managing stuff I could press the intercooler sprayer and the first bit of water would turn to steam. Not something anyone would want to touch. Proper heat management makes a WORLD of difference on forced induction cars.
Interesting information for sure, and will lead me to doing some research...

My turbos are bottom mounted, and get quite a bit of fresh air pouring over them at speed. There are no blankets on them.We have everything in the area wrapped to protect it from exhaust heat, and the inlet and boost pipes are coated.

Hmmm, you have me thinking though...

Part of the problem that we are going to address before I run the mile is that most of the face of the intercooler is behind the metal bumper. There is a little shroud but I dont think it's particularly effective, as it services more the radiator...

I am looking at cutting the bumper and rebuilding it with slats rather than a flat face... I am also going to vent the hood to remove air and under hood heat...
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Old 06-09-2012, 06:32 PM   #2663
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Originally Posted by sho928 View Post
http://www.youtube.com/watch?feature...&v=cjBmxblRmhs

Here is a TT Ford, it also shows the potential the 5.4/5.8 has
That's just insane.
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Old 06-09-2012, 09:48 PM   #2664
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There are many mis leading assumptions and products concerned with heat soak.

I remember after I got my larger upgraded Saleen heat exchanger for my Series VI Saleen SC, I ran the car for normal driving on a 90 degree day, and then stopped in a parking lot and did a test with my stock hood down with the car running, and occasionally revving the engine for 25 minute. I then opened the hood fully, with a decent cross wind, and continued to run and rev the engine in the same manner as with the hood down. No temperature change while the car was running what so ever. The temp was better than with the old exchanger for sure, but was not aided by a fully open hood with a cross wind.

The heat exchanger does all the work. Endless aftermarket hood designers claim that venting reduces the intake temps in your car as it is running, which isn't true.

The vents are for when you have stopped, and there is the need to release the built up heat trapped under the hood, which works, and the supercharged car with the vents will cool down faster while parked.

The fact that the newer supercharged cars have the larger heat exchangers over the ones in the 90's and mid 2000's is great. This is what reduces heat soak while pushing the car, not the vents. This can be misleading with supercharging. N/A cars also suffer a good deal of heat soak while running hard. Erik
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Old 06-09-2012, 11:10 PM   #2665
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Originally Posted by evh5150vanhalen View Post
Yeah, dealers up there are prob selling over sticker, the dealer i was at still has like 3 brand new 2011 gt500's for 10k below sticker.
Ouch that hurts. I lost a friend to Team Camaro simply because no one here would budge on a Shelby. No new allocations until the fall. Same deal on the ZL1 although the standard Camaros are plentiful and well priced.
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Old 06-09-2012, 11:28 PM   #2666
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Quote:
Originally Posted by eolson View Post
There are many mis leading assumptions and products concerned with heat soak.

I remember after I got my larger upgraded Saleen heat exchanger for my Series VI Saleen SC, I ran the car for normal driving on a 90 degree day, and then stopped in a parking lot and did a test with my stock hood down with the car running, and occasionally revving the engine for 25 minute. I then opened the hood fully, with a decent cross wind, and continued to run and rev the engine in the same manner as with the hood down. No temperature change while the car was running what so ever. The temp was better than with the old exchanger for sure, but was not aided by a fully open hood with a cross wind.

The heat exchanger does all the work. Endless aftermarket hood designers claim that venting reduces the intake temps in your car as it is running, which isn't true.

The vents are for when you have stopped, and there is the need to release the built up heat trapped under the hood, which works, and the supercharged car with the vents will cool down faster while parked.

The fact that the newer supercharged cars have the larger heat exchangers over the ones in the 90's and mid 2000's is great. This is what reduces heat soak while pushing the car, not the vents. This can be misleading with supercharging. N/A cars also suffer a good deal of heat soak while running hard. Erik
No argument here on this post... My primary purpose for the vents is to remove air from under the hood for 200+ mph passes at the mile... I do not want the front end getting light....

I'm hoping that a side effect is that by removing air under the hood, it will reduce the air hitting the firewall and allow it somewhere to go possibly creating a low pressure area (relatively speaking) allowing more air through the oil cooler and intercooler.
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Horsepower is how fast you hit the wall.
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Old 06-09-2012, 11:36 PM   #2667
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Heat soak is not an issue in road racing. There is more than enough airlflow available to the heat exchangers at high speed. The heat exchangers are designed exactly for this purpose.

The reason for no superchargers in organized racing is poor fuel consumption.
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Old 06-10-2012, 12:09 AM   #2668
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Damn, 10.02 at 141 on drags, with only a tune, LT's, and suspension mods.
http://www.stangtv.com/news/video-13...02-at-141-mph/
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Old 06-10-2012, 12:20 AM   #2669
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Heat soak is not an issue in road racing. There is more than enough airlflow available to the heat exchangers at high speed. The heat exchangers are designed exactly for this purpose.

The reason for no superchargers in organized racing is poor fuel consumption.


'Splain how a motor can be ran HARD for miles on end, lap after lap, and ever-increasing internal air temps increase while having NO affect on power in a supercharged/turbocharged vehicle.
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Old 06-10-2012, 12:28 AM   #2670
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That's just sick...



Interesting information for sure, and will lead me to doing some research...

My turbos are bottom mounted, and get quite a bit of fresh air pouring over them at speed. There are no blankets on them.We have everything in the area wrapped to protect it from exhaust heat, and the inlet and boost pipes are coated.

Hmmm, you have me thinking though...

Part of the problem that we are going to address before I run the mile is that most of the face of the intercooler is behind the metal bumper. There is a little shroud but I dont think it's particularly effective, as it services more the radiator...

I am looking at cutting the bumper and rebuilding it with slats rather than a flat face... I am also going to vent the hood to remove air and under hood heat...
Yes, there is a lot of good information being discussed, but you have to keep in mind how different turbochargers and superchargers are especially when it comes to heat. It is beneficial in more ways than one to keep as much heat pre-turbo confined to the exhaust. You will spool faster and, if you can isolate the heat radiating from the turbine housing as much as possible you can keep temperatures in the compressor housing and underhood temps in general considerably lower.
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Old 06-10-2012, 12:46 AM   #2671
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Originally Posted by 8cd03gro View Post
Yes, there is a lot of good information being discussed, but you have to keep in mind how different turbochargers and superchargers are especially when it comes to heat. It is beneficial in more ways than one to keep as much heat pre-turbo confined to the exhaust. You will spool faster and, if you can isolate the heat radiating from the turbine housing as much as possible you can keep temperatures in the compressor housing and underhood temps in general considerably lower.
True, My turbos mount directly to the exhaust manifold, with about a four or five inch up pipe... Here's a pic...

The heat from the turbine housing isn't really the source of the underhood temps, other than at very low speed... I've not done any actual testing, but numerous friends have mentioned how much more heat my car gives off compared to theirs... I mostly wrote it up the the heavy right foot and the HP this furnace makes...

Edit: the down pipes pictured are 2.5 inches in diameter, we cut those off and put a 3" down pipe in it's place... and three inch exhaust all the way out the back.

Edit: That's actually one of the old turbo's. That's a 62/65, and the new ones are 67/66's
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If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley

Horsepower is how fast you hit the wall.
Torque is how far you take the wall with you.

“If everything seems under control, you're just not going fast enough.” Mario Andretti

If you can turn, you ain't going fast enough...
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Old 06-10-2012, 01:47 AM   #2672
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Originally Posted by 72MachOne99GT View Post


'Splain how a motor can be ran HARD for miles on end, lap after lap, and ever-increasing internal air temps increase while having NO affect on power in a supercharged/turbocharged vehicle.
If you have ever-increasing intake air temps on a road course, you have a very poorly designed supercharger system.

The LSA's heat exchangers can control IAT as long at there is flow through the front cooler (as long as the vehicle is at speed).
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Old 06-10-2012, 02:28 AM   #2673
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Originally Posted by ChuckD View Post
If you have ever-increasing intake air temps on a road course, you have a very poorly designed supercharger system.

The LSA's heat exchangers can control IAT as long at there is flow through the front cooler (as long as the vehicle is at speed).
Sorry but the stock H/E on the LSA doesn't look up to task...
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Old 06-10-2012, 09:55 AM   #2674
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Originally Posted by ChuckD View Post
Heat soak is not an issue in road racing. There is more than enough airlflow available to the heat exchangers at high speed. The heat exchangers are designed exactly for this purpose.

The reason for no superchargers in organized racing is poor fuel consumption.
Sorry, not true. While heat soak is less of an issue on a road course it still affects cars; I've seen it first hand and will again tomorrow if today's weather holds.
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