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I know everyone has been asking about this for a few months now, and while we are still a few weeks away from parts shipping to customers it is close enough for you all to get a sneak peak at what we have been doing.
As some of you already know the C7Z06 on track at speed has some cooling issues. We found this during baseline testing the car, with Lou behind the wheel.
Our test car details
2015 Corvette Z06
A8 automatic transmission
Z07 package with level 3 aero
Cup tires removed and replaced with Michelin Super Sports for test use
Motul 300V 10w40 oil used in all tests.
Baseline test
Motorsports Ranch, Cresson TX
77 degrees, sunny, light to no wind
Less than 10 mins after leaving pit lane for the track with water temps at 150 degree's the car had went into limp home mode due to over heating water and oil temps.
The car was 100% stock at this point.
Fast forward
Modifications done
LG C7 Super Cool radiator
170 thermostat
LG HD trans cooler (replacing the fender cooler)
LG Prototype Stage II cooling system
LG Stage II cooling upgrade, no trim installed
LG inner fender vent
The above pictures are PROTOTYPE TESTING UNITS ONLY, final nose design and trim panels (carbon fiber) are not installed or shown in these pictures.
Testing data
Cooling test
Motorsports Ranch, Cresson TX
75 degrees, sunny, light to no wind
This time we started the car every session at full operating temp (water 190+, oil 200+) and every session of the day the car ran at least 16-18 mins on track with stable water and oil temps in a much safer range. The only thing that took us back to the pits was the stock carbon brakes failing, resulting in a loss of brake pedal. (our cooling ducts were not installed at this time, just the OEM brake ducts). Water temps have now fallen 40 degrees F, and oil temps have dropped over 69 degrees! With the final trim ducts, and seals in place we should see slightly more temp drops on the car. As a side result of this we have also seen intercooler air temps drop 15-20 degrees too!
We will be going back out for brake duct testing with the final nose piece on the car.
You will also see our coolers used in another kit coming soon as we have been working with another Corvette specialty manufacturer during final testing to supply them coolers and parts.
Test Video Full length
Key Notes
All coolers, lines, fittings, and ducts will be supplied
Template or pre-cut nose can be supplied for install
No loss of brake ducts
No loss of aero downforce (should increase front downforce)
Nice! looks great too. some may want a black mesh option for a bit more hidden look.
Originally Posted by Anthony @ LGMotorsports
Less than 10 mins after leaving pit lane for the track with water temps at 150 degree's the car had went into limp home mode due to over heating water and oil temps.
St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13
Originally Posted by STANG KILLA SS
Nice! looks great too. some may want a black mesh option for a bit more hidden look.
is the 150 a typo?
No...when we base lined the car it was pretty much room temp when he pulled out of pit lane. We had spent the day running the Aston's and ended the day with a base line on the Z06 so it had cooled off while the race cars were on track. The car came off the track at 265 water, 334 oil temp.
When we went back out with the new coolers in it, I made sure the car was fully up to temp so we could try and make it a bit harder on the car starting at 200 degree water temps not stone cold.
Last edited by Anthony @ LGMotorsports; 06-08-2016 at 04:39 PM.
does the c7 use the engine coolant to cool the supercharger or are they separate systems?is the heat from the supercharger heating up the oil more than a n/a car does?
on the 2003-06 amg "55"(e55.cls55,sl55) cars, the first thing we do is separate the supercharger cooling by adding a reservoir.some use a small power steering reservoir from bmw but the best is a big trunk tank that can hold a bag of ice.also upgrade the electric water pump and heat exchanger and lines.some would even add a meth kit to help cool the intake temps.
still don't understand why gm thought it would be a good idea to put a supercharger on a car designed for the track.
St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13
Originally Posted by jonnyc
does the c7 use the engine coolant to cool the supercharger or are they separate systems?is the heat from the supercharger heating up the oil more than a n/a car does?
on the 2003-06 amg "55"(e55.cls55,sl55) cars, the first thing we do is separate the supercharger cooling by adding a reservoir.some use a small power steering reservoir from bmw but the best is a big trunk tank that can hold a bag of ice.also upgrade the electric water pump and heat exchanger and lines.some would even add a meth kit to help cool the intake temps.
still don't understand why gm thought it would be a good idea to put a supercharger on a car designed for the track.
The blower has it's own pump, own cooler, own reservoir but that cooler blocks the entire nose opening for the radiator.
St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13
Originally Posted by spearfish25
Very excited about this. Just worried either the price or install complexity will make me puke.
I should have pricing knocked out with all of the options I hope by today or tomorrow. They are a little late on getting back to me on tooling pricing for the ducts but we are getting there.
The install, takes some time but the only thing you have to move to do it is the horns and horn bracket. There is enough room there to do it all. Now we will be offering a new GM fascia with the holes pre cut and we can even install them into the nose prior to shipping as well. We will NOT be doing a paint service however due to the complexity of having a 100% matching paint and keeping it from damage in shipping on such a large part.
What do you guys do about rocks and stuff hitting the exposed radiators?
What do you do about all the rocks and track tire rubber beating the heck out of the radiators from behind due to the wheel wells being open to exhaust air?
I guess I do too much following and not enough leading...
St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13
Originally Posted by fatbillybob
What do you guys do about rocks and stuff hitting the exposed radiators?
What do you do about all the rocks and track tire rubber beating the heck out of the radiators from behind due to the wheel wells being open to exhaust air?
I guess I do too much following and not enough leading...
There are screens over the inlet as you can see in the painted pics, and on the outlet there are louvers...if the rocks can somehow go forward across the flow of air, and dodge the louvers and work their way in there it would amaze me.
06-08-2016, 01:24 PM
THE C7 Z06 Cooling Solution from LG Motorsports
