07-10-2013, 07:33 AM | #1 |
Track > 1/4 Mile
|
ZL1 OEM Heat Soak & Heat Exchangers
I just traded in my 2010 Camaro for a new 2013 ZL1. Prior to now I did not spend much time in the ZL1 section. I've read that the ZL1 has serious heat soak issues with its OEM setup. I've been told that it needs better cooling and I've also been told that a tune can really wakes things up with the ZL1. I'm hoping people with a wealth of knowledge can comment on this.
__________________
|
07-10-2013, 07:52 AM | #2 |
Drives: 2012 Camaro 2SS Join Date: Feb 2012
Location: Nebraska
Posts: 605
|
Heatsoak is more of a crutch for people than a concern for a daily driven ZL1. And a tune wakes up any modern vehicle as even scaling back the nannies put in place to save wear & tear makes it feel different. All in all I'd be more worried about the oil that's getting sucked into the intake and caking on the rotors of the S/C than heatsoak. Again this is what I would be more worried about with a daily driven ZL1.
Last edited by Cody6.2; 07-10-2013 at 08:20 AM. |
07-10-2013, 08:21 AM | #3 |
Drives: 2023 Black ZL1 Auto Join Date: Oct 2009
Location: FEMA Region 4
Posts: 2,935
|
The car still has plenty of power even when it's hot, but if you stay in boost for very long the OEM heat exchanger can't keep up. The temps can be significantly reduced without voiding your warranty by adding an aftermarket dual pass exchanger and a coolant reservoir, or by adding a chiller. I wouldn't let heat soak discourage you from the car. It doesn't have any cooling issues.
|
07-10-2013, 08:23 AM | #4 |
Drives: 2011 Camaro SS Join Date: Dec 2012
Location: Bradenton, FL
Posts: 2,610
|
As with any forced induction, especially top mount SC styles, there will be additional heat going into the motor. Now add the rising ambient temperatures, so you are already taking in hot air to compress it to make it even hotter (Think about a blow dryer). A few weeks ago a friend of ours had me take his stock automatic ZL1 down track and do some logging on it. The DA was +2300 ft., so it was a pretty hot and humid night. I was seeing off the line, IAT2 temperatures (Intake Air Temperature 2 - meaning the IAT in the blower) of 140*+ on launch, and trailing up to the 170* range top track. This was making the car pull back on timing 5*+. Now, you cannot just go and delete all of these IAT safeties because of possible detonation. The higher the octane gas, the less prone to detonation (i.e. I can run C16 race gas full timing at 250*+ IAT without worry, but I would never think of running 93 pump anywhere close to that IAT).
So yes, a tune would be able to tone down this "heatsoak" adjustment that the computer is doing, but even on the really hot days or if you are tracking the car, you may still pull IAT timing out to save the motor. Now not saying that this is for everyone out there, but this is why I recommend methanol a lot on any style forced induction, not to increase base timing, but to keep the timing in the motor with the cooler air charge. |
07-10-2013, 08:26 AM | #5 | |
Drives: 2016 Corvette Z06 Blade Silver Join Date: Jun 2009
Location: Florida
Posts: 822
|
Quote:
One thing to remember is this car was tested a ton by GM on the track.
__________________
2016 2LZ Z06 Blade Silver
2013 ZL1 BLACK on BLACK <SOLD> Roto-Fab CAI 2010 2SS/RS BLACK on BLACK <SOLD> 3" MBRP 304 Stainless Exhaust Roto-Fab CAI |
|
07-10-2013, 03:29 PM | #6 |
|
I agree with Matt from FSP, it was my car he drove. The heat and humidity in West Fl is brutal right now. Best I have done with my new ZL1 is a 12.5 with most runs in the 12.7s. I also traded in a modded 2010 SS that ran 12.3s. But, that being said I certainly dont regret the swap. On the street my ZL1 is much smoother and faster than my old car. Pretty soon I will be getting Matt to tune my car and add a few go faster goodies, IE meth, headers, and pullys. Need to get into the 11s!
|
07-10-2013, 03:50 PM | #7 | |
Track > 1/4 Mile
|
Well at the moment I am driving this daily down here in Houston. So the heat (95-100) plus the really high humidity will suck the life out of this car if it is prone to heat soak problems.
Has anyone tried water injection for the sole purpose of keeping IAT temps down? Since I'm stock I'm not looking to get the added benefit of higher octane with meth. I'm just looking to control IAT temps, Houston weather is brutal Quote:
But I am reluctant to mod, based on the luck I had with my last 5th gen.
__________________
|
|
07-10-2013, 04:29 PM | #8 | |
Mid-Florida Camaro Club
Drives: 2019 ZL1 on Order Join Date: Jan 2011
Location: Heathrow, FL
Posts: 3,136
|
Quote:
__________________
|
|
07-10-2013, 05:25 PM | #9 |
Drives: 01 WS6 Join Date: Jun 2009
Location: Texas
Posts: 263
|
I run the Meth system and a new dual fan heat exchanger, few other mods and make 705rwhp 694trq at the wheels with a auto... This car is amazing..
__________________
2013 Red ZL1 Auto modded
2015 C7 ZO6 Luguna Blue stock |
07-10-2013, 05:39 PM | #10 |
Mid-Florida Camaro Club
Drives: 2019 ZL1 on Order Join Date: Jan 2011
Location: Heathrow, FL
Posts: 3,136
|
Are you 100% Meth? Or Water/Meth?
__________________
|
07-10-2013, 05:54 PM | #11 |
Drives: 01 WS6 Join Date: Jun 2009
Location: Texas
Posts: 263
|
Yes, 100%
__________________
2013 Red ZL1 Auto modded
2015 C7 ZO6 Luguna Blue stock |
07-10-2013, 06:14 PM | #12 | |
Speed Freak
Drives: 2013 ZL1 Camaro, 2016 Camaro SS Join Date: Jun 2013
Location: Ardmore, OK
Posts: 2,637
|
Quote:
The intercooler system can be modified to improve this some, there really is no reservoir in the stock set-up and installing more fluid will help some. Putting in a bigger intercooler will help also. I kind of think that many of the people complaining about the "serious heat soak issues" are changing pulleys and overdriving the supercharger without a compensation in the cooling department. Well, duh, think about it. It is so easy to get astronomically crazy amounts of power out of this motor, but it works better if you balance everything and don't take big shortcuts. Now after having said that, unless you are putting it in a race environment like I mentioned above, most of the wide open throttle applications on this thing are going to be so short you will never have an issue. Even the Texas mile pretty much happens in around 30 seconds....
__________________
2016 SS -AGP twin Borg Warner 7163 EFR's, LT4 mechanical pump, LT4 injectors, Walbro 255 low side, Castrol SRF. 734whp/759 tq
2013 ZL1 -ADM - 427 LSX 6 bolt, O-ringed block built by LME. Twin PT6466 turbos. RPM custom manual trans, RPS Quad carbon clutch, 9" Hendrix rear diff & axles. ADM/squash fuel system, Ron Davis radiator, Spal fans, AGP air to air, turbo plumbing. LPE oil cooler, rear bushing upgrade, roll bar...etc. rwhp 1400+... 212.5mph, best Texas mile to date. |
|
07-10-2013, 06:19 PM | #13 |
Drives: 2012 Camaro 2SS Join Date: Feb 2012
Location: Nebraska
Posts: 605
|
So does any of the dual pass hardware from a Cobalt heat exchanger work on the LSA?
|
07-10-2013, 06:22 PM | #14 |
Mid-Florida Camaro Club
Drives: 2019 ZL1 on Order Join Date: Jan 2011
Location: Heathrow, FL
Posts: 3,136
|
Good stuff - this is the route I'm going - I'd read about potential problems with coating of rotors being damaged with meth, but I think that's more of an issue with the water/meth
__________________
|
|
|
|
|