2014 Z28 Assault Thread.

[thePill]

Makes sense. Two holes @ 38mm is roughly equal in area to one hole @ 54mm.



I wouldn't think so either, and that's what prompted opening up this side topic in the first place.


Norm

Norm, there is currently no further info on this at this time. The Z/28 rulebook section is still being written. It should be finalized before Sebring...

UPDATE: Apparently, IMSA has disqualified all the Turner BMW M3's. This moves the Boss pack up to 7th, 8th and 9th.

The CLK Z28 moves into 11th, almost in the Top 10. I will get some info on the Turner Team disqualification. It was odd seeing 1st thru 6th swept by BMW at the BMW Performance 200. Not gonna get any views doing that. I would check the other cars.

New results published here: http://www.imsa.com/sites/default/files/race_result_files/CTSC%20Daytona%20Race%20Provisional.pdf


Edit:

The Turner M3 was “excluded from the race due to a technical infraction.”

Read more: http://www.autoweek.com/article/20140125/unitedsportscar/140129845#ixzz2reFB0sNv
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IWe may never hear the real story, With Turner being dealt a hefty blow, the season is once again anyone's game.

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[JohnZiraldo]

I must admit I'm having difficulty visualizing what these and the 80mm Camaro restrictors look like, if 80mm is worse than 57.

Sketch, anyone?

Here is an image of an air restrictor used in WRC that I found on the Piston Heads forum.

If this really is the kind of restrictor that we are talking about, then what does "38mm x 2" mean? Does BMW have two air intake tubes? And how can 80mm be more of a restriction than 57mm?

 

[JohnZiraldo]

This seems to be the biggest news to cheer about on Camaro5 after Daytona.

Quote:
"Chevrolet says that among the cars at the track this weekend, the Z/28.R will be one of the closest to production spec, with the car sharing aero, engine, and drivetrain components with its production counterpart. The race car was developed alongside the 2014 Chevrolet Camaro Z/28, and as such uses the same aero package as the production model for downforce and grip. That package includes the front splitter, rear spoiler with wickerbill, rocker panel trim, wheel-house extensions, front tire deflectors, belly pan, and hood extractor vent. The Z/28.R also uses the same 7.0-liter LS7 V-8 as the production model, along with the road-going car's helical-gear limited-slip rear differential."Apart from series-mandated equipment and the specialized suspension needed for endurance racing, the Z/28.R is as close to a production-spec race car as you'll find,".

I think what they are saying is that the Z/28.R looks like the Z/28, but all of the big deal stuff has been removed and the engine has been seriously detuned. That doesn't seem like much to brag about.

 

[FATTBoss]

I would argue that the Mustang is the closest of the cars in CTSCC. The Camaro may share it's aero package with the street car, but gets many composite body panels to shed weight. Even some of the parts on the Boss that are swapped, the trans and brakes, are off the shelf components from the GT500.

Regardless, I wouldn't be proud of needing 7.0L to compete with 5.0L...

 

[All-Or-Nothing]

I think what they are saying is that the Z/28.R looks like the Z/28, but all of the big deal stuff has been removed and the engine has been seriously detuned. That doesn't seem like much to brag about.

Ha Ha....and they sure are bragging about it.

 

[thePill]

The Z/Z8 also has a waiver, it isn't anything serious. The OEM z28 wasn't available to the public more than 30 days prior.

However, it does explain why Team Camaro only chose 500 units this year.

This is 2-1-1 of the Tech Regs...

2-
1.1 Eligible Cars are ordinarily those described in manufacturer’s catalogs, produced at a minimum rate of 500 units per year, and available for purchase through normal dealer outlets in the U.S. 30 days or more prior to competing in an Event. Exemption from minimum production requirements must be approved by IMSA
.

It shows they were involved in the Boss 302 process a little. They met the minimum production rule but not the 30 day rule. I hope Ford is afforded that waiver when and if they need it.


...here is a direct link to the CTSC Rulebook so you can see if restrictions were increased/decreased on your favorite cars.

http://www.imsa.com/sites/default/fi...v2%20FINAL.pdf

 

[Sabre]

The restrictor on the Boss is a billet machined aluminum ring that fits into the opening of the throttle body and inside the air tube from the filtered airbox. I don't have a photo, but you can probably visualize it in your mind. It has the same effect as the Nascar restrictor, but sits in front of the throttle body and not between the throttle body and the intake.

Rumor has it...and I stress the word RUMOR...that the Daytona CTSCC winning Turner BMW was disqualified at post race inspection for a restrictor infraction. I'll let you draw your own conclusions about what they might have down with the restrictor if this is true.

 

[PowerUp]

WINNING!!!

Kind of surprized you didn't resurrect this sorry old thread, today. I'm sure it was an oversight.

So, in the spirit of the fairness constantly displayed in this thread and others, here, check this out. Randy Pobst, Lord of the Stang, at the wheel (and again complaining about Mustang brakes).

http://blogs.hotrod.com/we-raced-th...aro-and-crashed-one-109547.html#axzz2wuD65nUK

And especially this full story version, with a modified Mustang BOSS for an appetizer:

http://www.hotrod.com/feature_stories/1406_2014_camaro_z28_forces/#ixzz2wrBdJn8u

Still, it’s the new Z/28 that we’d love to take home. We’ve been behind the wheel of nearly every new pony car model in the last few years, and nothing has felt so pure, so familiar to those of us on staff who regularly drive vintage muscle. The Z/28 does nothing but steer, stop, and accelerate--which, correct us if we’re wrong, is the whole point of a car--and it does all three of those things beautifully. It’s the perfect new car for old-car people.

 

[Roen]

Can people race the Z28 in NASA PT/TT or is the car still illegal?

 

[Jim968]

Can people race the Z28 in NASA PT/TT or is the car still illegal?

The car was never illegal for NASA. It gets bumped from PT to ST due to its weight to power ratio. In stock trim it will almost certainly fall into ST3 (pending actual weight and dyno numbers). For Time Trial it will fall into TT3 in stock trim (pending actual weight and dyno numbers).

 

[thePill]

You can also bring the car down to 3550lbs. I need to check if that's standing still or race weight, I believe they go by race weight. You need to make sure your power to weight ratio doesn't bump you to ST2. It would be pretty expensive to modify up to 8:1 to remain competitive.

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