Will I need oil cooler for a cammed C5 LS1 on track?
11-17-2011, 02:32 PM
#4
Le Mans Master
What mods you made to the engine is a smaller player on oil coolers than how hard you run at a DE. I won't let my oil temps get over 275 without backing off for a lap or so to get the temps down. Yes I know that xxx oil is spec'd to go to 300+, but the oil temp sensor isn't at the hottest point in the engine either.
With street tires in a novice class a limit of 275 might suit you just fine, but as you get faster you'll need an oil cooler. Lots of threads here about many different solutions, but if you're going to be autocrossing or DE'ing your car just bite the bullet in the off-season and put one in.
HTH, and have a good one,
Mike
With street tires in a novice class a limit of 275 might suit you just fine, but as you get faster you'll need an oil cooler. Lots of threads here about many different solutions, but if you're going to be autocrossing or DE'ing your car just bite the bullet in the off-season and put one in.
HTH, and have a good one,
Mike
11-17-2011, 02:36 PM
#5
Racer
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What mods you made to the engine is a smaller player on oil coolers than how hard you run at a DE. I won't let my oil temps get over 275 without backing off for a lap or so to get the temps down. Yes I know that xxx oil is spec'd to go to 300+, but the oil temp sensor isn't at the hottest point in the engine either.
With street tires in a novice class a limit of 275 might suit you just fine, but as you get faster you'll need an oil cooler. Lots of threads here about many different solutions, but if you're going to be autocrossing or DE'ing your car just bite the bullet in the off-season and put one in.
HTH, and have a good one,
Mike
With street tires in a novice class a limit of 275 might suit you just fine, but as you get faster you'll need an oil cooler. Lots of threads here about many different solutions, but if you're going to be autocrossing or DE'ing your car just bite the bullet in the off-season and put one in.
HTH, and have a good one,
Mike
I am in B group in HPDEs, run on R888 and Hoosiers.
I think Oil Cooler and Catch Can is a must for it....
11-17-2011, 02:56 PM
#7
Racer
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I just bought this car and want to put some mods before next season, but when I tracked stock LS2 car, I saw 295-301 often and had to take cooldown lap.
Forgot to mention that this C5 has 160 T-stat that may help to keep oil temp down, but not much....
Forgot to mention that this C5 has 160 T-stat that may help to keep oil temp down, but not much....
11-17-2011, 03:02 PM
#8
Le Mans Master
t'stat won't help at all. The t'stat set point regulates the coolest steady state temperature of the coolant; once the coolant is above that temp it's fully open and out of the picture.
I strongly recommend putting an oil cooler in your new car. I did in my stock '00 LS1 and it kept the temps down in the 250-270 range.
Have a good one,
Mike
I strongly recommend putting an oil cooler in your new car. I did in my stock '00 LS1 and it kept the temps down in the 250-270 range.
Have a good one,
Mike
11-17-2011, 03:06 PM
#9
Drifting
I put a DeWitts Radiator/EOC combo in last winter. My oil temps dropped 15/20* and I run pretty hard, not 10/10ths but 8-9/10ths. I think it's a good investment to keep the engine a little cooler.
11-17-2011, 03:07 PM
#10
Safety Car
The lower temp t-stat just allows coolant to flow through the radiator at a lower temp. The t-stat is just a switch. The 160 degree one opens at 160 vs. the stock which is 192 (if I remember correctly). Once you're on track and going the car will still heat up to the same temps since the ultimate cooling capacity is determined by the radiator and oil cooler (or lack there of). The lower temp t-stats and fans turned on earlier are popular for drag racing so the car doesn't heat up as fast in the staging lanes and make the PMC pull timing.
11-17-2011, 04:16 PM
#11
Racer
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LS6s make 385 rwhp stock with headers. How mild is that cam?
The lower temp t-stat just allows coolant to flow through the radiator at a lower temp. The t-stat is just a switch. The 160 degree one opens at 160 vs. the stock which is 192 (if I remember correctly). Once you're on track and going the car will still heat up to the same temps since the ultimate cooling capacity is determined by the radiator and oil cooler (or lack there of). The lower temp t-stats and fans turned on earlier are popular for drag racing so the car doesn't heat up as fast in the staging lanes and make the PMC pull timing.
The lower temp t-stat just allows coolant to flow through the radiator at a lower temp. The t-stat is just a switch. The 160 degree one opens at 160 vs. the stock which is 192 (if I remember correctly). Once you're on track and going the car will still heat up to the same temps since the ultimate cooling capacity is determined by the radiator and oil cooler (or lack there of). The lower temp t-stats and fans turned on earlier are popular for drag racing so the car doesn't heat up as fast in the staging lanes and make the PMC pull timing.
this is LS1 with LS6 heads and intake....
11-17-2011, 04:45 PM
#12
Safety Car
LS1 and LS6 are basically the same short-block. Yes the LS6 has some casting differences for better pressure equalization in the block, but if it has LS6 heads and an intake then it should make the same power as an LS6 with the same mods.
I would expect a LS1 with LS6 heads, LS6 manifold, 224/224 cam and longubes to be 400 rwhp minimum. You sure it doesn't have LS1 heads or manifold on it still?
I would expect a LS1 with LS6 heads, LS6 manifold, 224/224 cam and longubes to be 400 rwhp minimum. You sure it doesn't have LS1 heads or manifold on it still?
11-17-2011, 04:50 PM
#13
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LS1 and LS6 are basically the same short-block. Yes the LS6 has some casting differences for better pressure equalization in the block, but if it has LS6 heads and an intake then it should make the same power as an LS6 with the same mods.
I would expect a LS1 with LS6 heads, LS6 manifold, 224/224 cam and longubes to be 400 rwhp minimum. You sure it doesn't have LS1 heads or manifold on it still?
I would expect a LS1 with LS6 heads, LS6 manifold, 224/224 cam and longubes to be 400 rwhp minimum. You sure it doesn't have LS1 heads or manifold on it still?
I don't need more power then it has now, even 350rwhp would be enough for HPDE, given it affects reliability of the drivetrain....
Car is noticeably faster then my stock C6 Z51....
11-17-2011, 04:57 PM
#14
Safety Car
I agree that you don't need more power. However, if I had a motor with 243 heads, a LS6 manifold, 224/224 cam and long-tubes that only made 38X rwhp then I'd be concerned that something was amiss.
My old '01 Z06 had a G5-X2 cam with longtubes and made 436 whp/397 rwtq with 80k miles on it. My current 2001 Z06 race car has a nearly stock setup. The only mods are a 10% underdriven ATI super damper and a tune. It has 122,000 miles on it and made 361 rwhp/360 rwtq. Has 100% OEM exhauast on it.
Just my $0.02
My old '01 Z06 had a G5-X2 cam with longtubes and made 436 whp/397 rwtq with 80k miles on it. My current 2001 Z06 race car has a nearly stock setup. The only mods are a 10% underdriven ATI super damper and a tune. It has 122,000 miles on it and made 361 rwhp/360 rwtq. Has 100% OEM exhauast on it.
Just my $0.02
11-17-2011, 05:03 PM
#15
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I agree that you don't need more power. However, if I had a motor with 243 heads, a LS6 manifold, 224/224 cam and long-tubes that only made 38X rwhp then I'd be concerned that something was amiss.
My old '01 Z06 had a G5-X2 cam with longtubes and made 436 whp/397 rwtq with 80k miles on it. My current 2001 Z06 race car has a nearly stock setup. The only mods are a 10% underdriven ATI super damper and a tune. It has 122,000 miles on it and made 361 rwhp/360 rwtq. Has 100% OEM exhauast on it.
Just my $0.02
My old '01 Z06 had a G5-X2 cam with longtubes and made 436 whp/397 rwtq with 80k miles on it. My current 2001 Z06 race car has a nearly stock setup. The only mods are a 10% underdriven ATI super damper and a tune. It has 122,000 miles on it and made 361 rwhp/360 rwtq. Has 100% OEM exhauast on it.
Just my $0.02
If I will end up re-tuning it, I would de-tune it actually....
Car also has CAI, SVO injectors, some other mods.
This is the car:
http://forums.corvetteforum.com/c5-c...-14-5k-wa.html
11-17-2011, 06:26 PM
#17
Drifting
I have an 02 Z and added the DRM Oil Cooler kit (625 Track Version) before my first track day. I have not seen over 255 running on the S Cal tracks in HPDE's.
Good insurance, I now just watch Oil Pressure on the HUD
Ed
Good insurance, I now just watch Oil Pressure on the HUD
Ed
11-17-2011, 06:31 PM
#18
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11-17-2011, 07:35 PM
#19
Safety Car
I have the same kit. Racing at VIR in July heat I saw a max of 257.
11-17-2011, 07:52 PM
#20
Melting Slicks
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How much does a set of tires cost? How much does a full set of brake pads cost? How much do you pay for an HPDE? How much does a new shortblock cost?
Tracking a car is expensive.
Get one of these: http://www.lgmotorsports.com/LG-Moto...-Cool-Radiator and you'll never worry about water or oil temps again.
Tracking a car is expensive.
Get one of these: http://www.lgmotorsports.com/LG-Moto...-Cool-Radiator and you'll never worry about water or oil temps again.
