2013 Mustang GT500 MEGA THREAD - Page 108 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Fenderaddict2 · 06-10-2012, 08:55 AM

Quote:

Originally Posted by ChuckD

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.

72MachOne99GT · 06-10-2012, 10:10 AM

I'd imagine road racing takes place with other cars as well right? Wouldn't being in a pack deflect air away from some cars not at the head?

*mlee* · 06-10-2012, 10:37 AM

Quote:

Originally Posted by islander033

Sorry but the stock H/E on the LSA doesn't look up to task...

Can you explain... are the Torq numbers on the aftermarket HE too high also? From what I see the aftermarket HE w/ fans dropped IAT's by ~10 degrees which doesn't seem like much. I'm just not sure what the acceptable range is.

islander033 · 06-10-2012, 10:54 AM

Quote:

Originally Posted by mlee

Can you explain... are the Torq numbers on the aftermarket HE too high also? From what I see the aftermarket HE w/ fans dropped IAT's by ~10 degrees which doesn't seem like much. I'm just not sure what the acceptable range is.

Quoted from Torq..
"At WOT in boost the stock tune pulls 2 degrees at 104F and 6 degrees at 128-130 with 3-4 at 125 "

This to me means you would need to upgrade the H/E and change the tune to keep from pulling timing at WOT.

imstillhere · 06-10-2012, 11:31 AM

Quote:

Originally Posted by SSE 4 2SS

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

that looks like a sick setup, pic alone put a

on my face.

ChuckD · 06-10-2012, 11:42 AM

Quote:

Originally Posted by islander033

Sorry but the stock H/E on the LSA doesn't look up to task...

Quote:

Originally Posted by Fenderaddict2

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.

I'm not going to argue with you guys. But, that chart has nothing to do with road racing. (note the ZL1 plot starts at 110 at the start of the dyno pull) Show me IAT data log on the track. I've seen the LSA on engine dyno running rated power all day. As long at the coolant flow to the manifold coolers stays cool, IAT won't get out of control.

Also, I will add that heat soak and elevated IAT are not always the same thing. The engine might have an elevated IAT at rated power to some degree no matter what. But that is not necessarily heat soak.

*mlee* · 06-10-2012, 12:29 PM

Quote:

Originally Posted by islander033

Quoted from Torq..
"At WOT in boost the stock tune pulls 2 degrees at 104F and 6 degrees at 128-130 with 3-4 at 125 "

Thanks... I think I'll be OK in stock configuration.. just want to be prepared for when I get serious and pully down.

stewdee · 06-10-2012, 02:08 PM

Not sure if this has been posted yet..

http://blogs.mustang50magazine.com/6...-9s/index.html

8cd03gro · 06-10-2012, 02:30 PM

I've heard that was just with longtubes, a tune, slicks, and some suspension work. That's absolutely disgustingly fast if that's accurate.

8cd03gro · 06-10-2012, 02:31 PM

Quote:

Originally Posted by mlee

Thanks... I think I'll be OK in stock configuration.. just want to be prepared for when I get serious and pully down.

Just datalog when you run it and see if it's necessary to make changes.

Fenderaddict2 · 06-10-2012, 08:00 PM

Quote:

Originally Posted by 8cd03gro

I've heard that was just with longtubes, a tune, slicks, and some suspension work. That's absolutely disgustingly fast if that's accurate.

Once it's no longer stock I'm no longer interested. Back, way back, when I was 17 one of the guys was putting 9's down all day in a street legal but modded '67 'Stang. We also had a bunch of cars in the 10's and my Cougar could run low 12's so, meh.

8cd03gro · 06-10-2012, 08:07 PM

Quote:

Originally Posted by Fenderaddict2

Once it's no longer stock I'm no longer interested. Back, way back, when I was 17 one of the guys was putting 9's down all day in a street legal but modded '67 'Stang. We also had a bunch of cars in the 10's and my Cougar could run low 12's so, meh.

Stock is overrated imo, but I've never owned a stock car for more than a few days

*SSE 4 2SS* · 06-10-2012, 08:29 PM

Quote:

Originally Posted by 8cd03gro

Stock is overrated imo, but I've never owned a stock car for more than a few days

Fenderaddict2 · 06-10-2012, 10:16 PM

Used to mod when I was younger and kid free but no time for that now, so instead I buy a few cars for different purposes every few years. Miss building a car, maybe I'll do that when retired.

*SSE 4 2SS* · 06-11-2012, 01:25 AM

Quote:

Originally Posted by Fenderaddict2

Used to mod when I was younger and kid free but no time for that now, so instead I buy a few cars for different purposes every few years. Miss building a car, maybe I'll do that when retired.

I hear you... I got completely out of performance cars for years, due to family responsibilities...

Now I work 4 weeks on and 4 weeks off... so, fortunately I have the time...

72MachOne99GT · 06-11-2012, 07:50 AM

4 on 4 off...... Mmmmmmmmm....

28 straight days on? Or 4 work weeks?

Doubleblank · 06-11-2012, 08:04 AM

Quote:

Originally Posted by 72MachOne99GT

4 on 4 off...... Mmmmmmmmm....

28 straight days on? Or 4 work weeks?

Can't speak for the poster, but in Texas and Louisiana the term "4 on, 4 off" typically means someone is working on an offshore rig 28 days at a time with the next 28 days off. Can be hard on the family while gone.....and while at home that much too!

*GTAHVIT* · 06-11-2012, 10:04 AM

Quote:

Originally Posted by 8cd03gro

Stock is overrated imo, but I've never owned a stock car for more than a few days

*mlee* · 06-11-2012, 10:07 AM

Quote:

Originally Posted by Doubleblank

Can't speak for the poster, but in Texas and Louisiana the term "4 on, 4 off" typically means someone is working on an offshore rig 28 days at a time with the next 28 days off. Can be hard on the family while gone.....and while at home that much too!

You are correct... that's what he works... 28/28... and I do 14/14...

Long Carbine · 06-11-2012, 11:15 AM

Quote:

Originally Posted by islander033

Sorry but the stock H/E on the LSA doesn't look up to task...

It isn't just the HE. There's not enough room in the valley between the heads to get a suitable I/C constrained even more by the hood on a pushrod engine. I believe the ZL1 will drop 100 HP from heat soak on a hot traack especially a road course. That may be why the ZL1 did not pull the Boss at VIR. I think we will find out the 2013 GT500 is faster on a road course.

big hammer · 06-11-2012, 11:29 AM

Quote:

Originally Posted by stewdee

Not sure if this has been posted yet..

http://blogs.mustang50magazine.com/6...-9s/index.html

there's a zl1 in the 9's already too. stock blower.

8cd03gro · 06-11-2012, 12:33 PM

Quote:

Originally Posted by big hammer

there's a zl1 in the 9's already too. stock blower.

True, it also has heads and a cam though. I'm more interested to see what the zl1 can do with an upgraded blower on a stock motor. I'm sure it will be equally impressive, but I find that a more likely mod path for the majority of owners than a h/c setup on the stock blower.

*GTAHVIT* · 06-11-2012, 12:47 PM

Quote:

Originally Posted by 8cd03gro

True, it also has heads and a cam though. I'm more interested to see what the zl1 can do with an upgraded blower on a stock motor. I'm sure it will be equally impressive, but I find that a more likely mod path for the majority of owners than a h/c setup on the stock blower.

yep,

But the ZL1 obviously need more help than a GT500 does with the power difference...

I can't believe I'm about to type this......

BUT:

I wonder what the total cost of ownership is for a 9 sec ZL1/GT500

Not that we can ever figure it out but something to think about?

Slowmaro19 · 06-11-2012, 01:07 PM

I think it would be cheaper for the GT500 to hit 9's considering the 17-18k package it takes to for the ZL1 to hit it.

GT500 did it with bolt ons, tires, gears, and the stock blower.

*GTAHVIT* · 06-11-2012, 01:20 PM

Quote:

Originally Posted by Slowmaro19

I think it would be cheaper for the GT500 to hit 9's considering the 17-18k package it takes to for the ZL1 to hit it.

GT500 did it with bolt ons, tires, gears, and the stock blower.

could be... but lets keep in mind, (again everything about this discussion is arguable LOL) That was with LPE doing the work and they can charge those prices for a reason...

I'm sure there will be some cheaper 9 sec builds out there on both sides.

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

06-10-2012, 10:10 AM	#2677
72MachOne99GT Drives: 1972 Mach 1, 1999 GT Join Date: Nov 2011 Location: Indiana Posts: 483	I'd imagine road racing takes place with other cars as well right? Wouldn't being in a pack deflect air away from some cars not at the head? __________________ Arrived: Base/Grabber/Recaro 2013 GT500 Also Arrived: That 'perma-grin' thing you ZL1 owners were talking about

06-10-2012, 02:08 PM	#2683
stewdee Drives: 70 Z28 Join Date: May 2012 Location: Never never land Posts: 15	2013 GT500 in the 9's!! Not sure if this has been posted yet.. http://blogs.mustang50magazine.com/6...-9s/index.html

06-10-2012, 10:16 PM	#2689
Fenderaddict2 Drives: '12 Boss, '65 Mustang FB, '64 Strat Join Date: Feb 2011 Location: Oakville Posts: 1,383 View My Garage	Used to mod when I was younger and kid free but no time for that now, so instead I buy a few cars for different purposes every few years. Miss building a car, maybe I'll do that when retired. __________________ Rated at 272 horsepower and 260 pound-feet of torque, Cadillac's turbo mill is rated for more power than the engines found in its German competition. Of course, once you take this engine to a chassis dyno known for vaporizing GM fairy dust as we did, the output of the ATS engine looks identical to that of a BMW engine rated for 32 fewer ponies.

06-11-2012, 07:50 AM	#2691
72MachOne99GT Drives: 1972 Mach 1, 1999 GT Join Date: Nov 2011 Location: Indiana Posts: 483	4 on 4 off...... Mmmmmmmmm.... 28 straight days on? Or 4 work weeks? __________________ Arrived: Base/Grabber/Recaro 2013 GT500 Also Arrived: That 'perma-grin' thing you ZL1 owners were talking about

06-10-2012, 02:30 PM	#2684
8cd03gro Drives: 2005 STi corn fed Join Date: Jul 2008 Location: Colorado Posts: 3,010	I've heard that was just with longtubes, a tune, slicks, and some suspension work. That's absolutely disgustingly fast if that's accurate.

06-11-2012, 01:07 PM	#2699
Slowmaro19 Drives: chevy Join Date: Jun 2012 Location: tn Posts: 20	I think it would be cheaper for the GT500 to hit 9's considering the 17-18k package it takes to for the ZL1 to hit it. GT500 did it with bolt ons, tires, gears, and the stock blower.