Mustang GT4.R vs Camaro (ZL1 1LE)GT4.R

JohnZiraldo · Mar 14, 2017

I was hoping to see the Mustang GT4.R go up against it's Camaro equivalent this weekend at Sebring, but it looks like the Camaro is not ready yet for IMSA.

The Camaros thought they were ready for the PWC race in St. Pete's last weekend, but a grandfathered 302.R showed them who was still The Boss in both races.

02gtnh · Mar 14, 2017

JohnZiraldo said:
I was hoping to see the Mustang GT4.R go up against it's Camaro equivalent this weekend at Sebring, but it looks like the Camaro is not ready yet for IMSA.

The Camaros thought they were ready for the PWC race in St. Pete's last weekend, but a grandfathered 302.R showed them who was still The Boss in both races.

The Camaro will be at round 3 for IMSA. I watched the race and the Mustang and racer were impressive. :thumbsup:

the Camaro got 2nd in its first race and did set a track record for fastest qualifying lap. To bad a gt350r didn't race.:shrug:

1320' · Mar 14, 2017

02gtnh said:
The Camaro will be at round 3 for IMSA. I watched the race and the Mustang and racer were impressive. the Camaro got 2nd in its first race and did set a track record for fastest qualifying lap. To bad a gt350r didn't race.:shrug:

There is no 350R-C anymore...it's the GT4.

02gtnh · Mar 14, 2017

1320' said:
There is no 350R-C anymore...it's the GT4.

That's what I was thinking, there new GT4. Wonder why they don't race this series.

JohnZiraldo · Mar 15, 2017

It's also curious to see that Multimatic has turned over their GT4 car and drivers (but not their number 15) to KohR Motorsports for the Sebring race. No Multimatic car in the race. Did some rules get changed, like builders can't be racers in GS?

JohnZiraldo · Mar 15, 2017

02gtnh said:
The Camaro will be at round 3 for IMSA.

Here is an article with further info.
http://sportscar365.com/imsa/ctscc/stevenson-confirms-return-to-ctsc-camaro-gt4-r-driver-lineup/

It looks like only one Camaro GT4 from Stevenson, while drivers Andrew Davis and Lawson Aschenbach remain behind the wheel of the No. 57 Audi R8 LMS in the WeatherTech GTD class.

thePill · Mar 15, 2017

Hi John,

The 6th Gen Camaro was never designed for Motorsport at all. Even the approved GT4 Camaro took extreme measures to perform, even against older cars.

One area thePill specifically talked about was airflow. The Camaro's fascia design limits airflow into the heat exchanger/radiator in critical amounts. You should instantly notice Blackdogs Camaro GT4's grill area... and the missing bumper support that impedes airflow to the radiator. Engine/Oil temperatures are a very big problem with the 6th Gen when it's flogged... The ZL1's front fascia is a computer design that was optimized for airflow and was a result of early testing.

Even with 11 coolers, a bumper cover delete (MY2019) and an AC delete, the front just doesn't pull air in :(

Obviously it's a compound issue, they need more heat extraction on the hood as well.

Mountain376 · Mar 15, 2017

JohnZiraldo said:
It's also curious to see that Multimatic has turned over their GT4 car and drivers (but not their number 15) to KohR Motorsports for the Sebring race. No Multimatic car in the race. Did some rules get changed, like builders can't be racers in GS?

The drivers remain. Multimatic is just busy with full race support on the GTLM and LMP2 programs and support of the Merc GT3. They are stepping back to a customer support level. This is good as it will allow KOHR to finance their racing and keep two Mustangs out there. Pretty cool match between the two Mustangs: older, experienced driver and younger talent vs older experienced drive and younger talent. Dean and Scott used to work on Mustangs together...

JohnZiraldo · Mar 16, 2017

thePill said:
Hi John,

The 6th Gen Camaro was never designed for Motorsport at all. Even the approved GT4 Camaro took extreme measures to perform, even against older cars.

One area thePill specifically talked about was airflow. The Camaro's fascia design limits airflow into the heat exchanger/radiator in critical amounts. You should instantly notice Blackdogs Camaro GT4's grill area... and the missing bumper support that impedes airflow to the radiator. Engine/Oil temperatures are a very big problem with the 6th Gen when it's flogged... The ZL1's front fascia is a computer design that was optimized for airflow and was a result of early testing.

Even with 11 coolers, a bumper cover delete (MY2019) and an AC delete, the front just doesn't pull air in :(

Obviously it's a compound issue, they need more heat extraction on the hood as well.

There certainly seems to be some evidence for what you suggest from the PWC race in St. Pete's. New track record by C-GT4 while qualifying (cooler). It jumped past the Boss at the start of race 2 (while still cool). It stayed on the Boss's tail after activating the Rear-Bumper Detach and Drag Feature, which may have been engineered to help with cooling.

It looks like we won't get a chance to see a real comparison of the M-GT4 and C-GT4 until April, but then we will be doing the BOP Bop.
[ame]

thePill · Mar 16, 2017

JohnZiraldo said:
There certainly seems to be some evidence for what you suggest from the PWC race in St. Pete's. New track record by C-GT4 while qualifying (cooler). It jumped past the Boss at the start of race 2 (while still cool). It stayed on the Boss's tail after activating the Rear-Bumper Detach and Drag Feature, which may have been engineered to help with cooling.

It looks like we won't get a chance to see a real comparison of the M-GT4 and C-GT4 until April, but then we will be doing the BOP Bop.

If you examine the Camaro GT4 you will notice they actually removed the front bumper to help cooling. That's how bad it is...

Last season the guys tried to open an SS up to get more air but it is beyond any issue with the opening size or grill mesh. It was determined early on that too much positive pressure is built up under the hood in which it forces air OUT of the grill.

We haven't had a ZL1 but we understand the design direction. Open it up and hope for the best. However, if your in traffic, you get zero air :(

traxiii · Mar 16, 2017

Mustangs lead both practice sessions, taking turns with the #60 car fastest in Practice #1 and #59 fastest in Practice #2. The opposite car ran 4th or 5th when they weren't out front, so they're looking pretty competitive. Looking forward to the race and qualifying, to see if they can keep it together and clean and get a win.

1mic · Mar 17, 2017

1320' said:
There is no 350R-C anymore...it's the GT4.

Probably one of the reasons there is no FPC motor anymore is having to replace that crank after every race.

traxiii · Mar 17, 2017

Maxwell/Buford win Sebring in Mustang GT4 #60
Let's hope the Ford GTs in GTLM can carry the momentum tomorrow in the 12HR, they have two on the front row for the start.

02gtnh · Mar 17, 2017

traxiii said:
Maxwell/Buford win Sebring in Mustang GT4 #60
Let's hope the Ford GTs in GTLM can carry the momentum tomorrow in the 12HR, they have two on the front row for the start.

I see BOP coming for the GT4 Mustang, basically lapped the field for the win. Very impressive.:hail:

JohnZiraldo · Mar 17, 2017

02gtnh said:
I see BOP coming for the GT4 Mustang, basically lapped the field for the win. Very impressive.:hail:

How would one know that the Mustangs did well. They never get the cameras off the dammed ST cars. If the field were 30 GS cars and 4 ST cars we still would have to watch the ST race.
That run by Jack Roush Jr from last to 6th(?) should have been followed all the way. Then I would have been ready to accept some BOP.

Mustang GT4.R vs Camaro (ZL1 1LE)GT4.R

JohnZiraldo

Well-Known Member

02gtnh

Well-Known Member

1320'

Well-Known Member

02gtnh

Well-Known Member

JohnZiraldo

Well-Known Member

JohnZiraldo

Well-Known Member

thePill

Camaro5's Most Wanted

Mountain376

Well-Known Member

JohnZiraldo

Well-Known Member

thePill

Camaro5's Most Wanted

traxiii

Mustang is my middle name

1mic

2 mph so everybody sees u

traxiii

Mustang is my middle name

02gtnh

Well-Known Member

JohnZiraldo

Well-Known Member