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converting base C5 to Z51


balaguru

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Is it legal to change a base C5 to a Z51 C5 and start at the TTA base class in order to start with a 295 tire?

 

My thoughts were to find a base C5 if I could not find a suitable Z51 and add PS cooler, sways, springs and shocks from a Z51 to take advantage of the starting tire size of 295. Otherwise, I would incur more points with a 255 A6 tire if I start at TTB versus TTA.

 

The math:

base C5 with 255 A6 and -80lbs = ttb + 7 + 12 + 6 = tta + 5

z51 c5 with 255 A6 = tta + 3

 

Note the base C5 option is still stuck with a base C5 suspension even though it has more points than the z51 option.

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Is it legal to change a base C5 to a Z51 C5 and start at the TTA base class in order to start with a 295 tire?

 

My thoughts were to find a base C5 if I could not find a suitable Z51 and add PS cooler, sways, springs and shocks from a Z51 to take advantage of the starting tire size of 295. Otherwise, I would incur more points with a 255 A6 tire if I start at TTB versus TTA.

 

The math:

base C5 with 255 A6 and -80lbs = ttb + 7 + 12 + 6 = tta + 5

z51 c5 with 255 A6 = tta + 3

 

Note the base C5 option is still stuck with a base C5 suspension even though it has more points than the z51 option.

 

Thank you for your interest in NASA. C5 Corvette? You may now move along.....

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Uhg! Just skimmed the ST rules for the first time. Initial impression is that it looks expensive in terms of money and car development time. Sigh...I just wanna race.

I'd pick a different car.

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Uhg! Just skimmed the ST rules for the first time. Initial impression is that it looks expensive in terms of money and car development time. Sigh...I just wanna race.

I'd pick a different car.

 

Yeah. You are probably right. Seemed like the perfect car--cheap, powerful, well balanced, cheap...

 

Might need to look at a 350z or camaro/mustang.

 

I had been planning this for years. So depressing...

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I feel your pain. I just picked up a C5 Z06 in july with every intent to leave it stock and change tires and pads on track weekends for a competitive TTA car.

 

I'll still play ofcourse, but not sure if I will ever be competitive with the new rule set.

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But the new rules are going to bring a massive influx of new participants to ST3/TT3 and ST2/TT2!!! Nationals next year will be overrun and regional events will be huge!

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But the new rules are going to bring a massive influx of new participants to ST3/TT3 and ST2/TT2!!! Nationals next year will be overrun and regional events will be huge!

Someone beat this post with the sarcasm stick!

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Hmm. After thinking about things abit this may not be as bad as I thought. It does avoid some of the contortions that inspired the original post. Just find a C5 then pick a wheel/tire, suspension and brake package. Then see where you are and shoot for a wt/hp ratio. All the other little things will probably be made irrelevant by driver skill...or my lack thereof.

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If you are just starting, depending on your area, your chances of winning may be low, but that would be the case regardless of what car you are in.

A C5 is a great car for all the reasons mentioned. It is not a piece of cake to drive despite some of the comments that I am seeing. There is a wealth of collective knowledge and good parts (OEM and aftermarket) that will help.

Given the current climate, I would either consider a car that you can fit in TTB or simply start out in TT3 with a C5. With another car that starts in TTB, you will be dumping $ into it for TT3, just like a C5, but likely find yourself on your own when it comes to development.

If you think you are in it for at least a couple years, then starting with a '01 C5 base model with Z06 heads/cam, along with poly bushings and C5Z suspension is a good start. You can work in other mods as you go along, but that will get you towards the front in terms of car capabilities.

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