[Z06] Z06 vs. FRC, differences... is it worth it?





This brings me to the meat of the discussion what are the true differences between the FRC and Z06. I've done quite a bit of reading on the subject and here is what I've come up with LS1 vs. LS6 lower stock power, less aggressive sway-bars/rear-springs on the FRC, MN6 vs. MN12, heavier glass on a FRC but not by much. And also it seems corvettes in general received an updated Active handling update around 2001 but most FRC's I see are a little older and thus have the previous generation Active Handling. My biggest concern because I'd like to settle into keeping this car for 4 years is that if I do go FRC my mod list is going to start to pile up Z06 type items and I will have spent in mod money the price differential between a FRC and Z06 yet I will have gained non of the resale value. But overall unfortunately my perception of differences between the FRC and Z06 are all what I've read off paper I don't know what this really means in real terms if it really makes much of a difference.
perfecto explanation! Maybe a better way to look at it is this ....
First ... buy what you can reasonably afford. Let's assume that's an FRC. Once you have the car, drive it for a couple of weeks and then sit down and make up a mod list based on the following question ...
"What can I do to make the car more to my liking while continuing to have a reliable daily driver"
I would do this, rather than set as a goal to end up with a "Z06 clone". For one thing, you might find the stiffer suspension, for example, of a Z06 is more than you want for a daily driver. You might find, based on your commute, that an automatic is a better choice than the manual. Believe me ... I've been stuck in heavy traffic in my Z06 a few times and it does become an issue having to clutch, roll a few feet, stop, and then do it all over again and again and again....
The Z06 is a great car, but may not (or may) be the best fit for your needs. Kinda like, hey an Escalade is a great SUV ... but doesn't fit my needs.
If you add mods that you want, then the money spent will have a payback in pleasure. Certainly ANY money you throw into a car is hard to justify from an "investment" point of view. Look at the return in miles of smiles instead .....
HTH
Steve





Maybe a better way to look at it is this ....
First ... buy what you can reasonably afford. Let's assume that's an FRC. Once you have the car, drive it for a couple of weeks and then sit down and make up a mod list based on the following question ...
"What can I do to make the car more to my liking while continuing to have a reliable daily driver"
I would do this, rather than set as a goal to end up with a "Z06 clone". For one thing, you might find the stiffer suspension, for example, of a Z06 is more than you want for a daily driver. You might find, based on your commute, that an automatic is a better choice than the manual. Believe me ... I've been stuck in heavy traffic in my Z06 a few times and it does become an issue having to clutch, roll a few feet, stop, and then do it all over again and again and again....
The Z06 is a great car, but may not (or may) be the best fit for your needs. Kinda like, hey an Escalade is a great SUV ... but doesn't fit my needs.
If you add mods that you want, then the money spent will have a payback in pleasure. Certainly ANY money you throw into a car is hard to justify from an "investment" point of view. Look at the return in miles of smiles instead .....
HTH

"But overall unfortunately my perception of differences between the FRC and Z06 are all what I've read off paper I don't know what this really means in real terms if it really makes much of a difference."
The Z06 was built based on the FRC ... but the following changes were made to change the entire "character" of the car ...
Curb weight of the FRC is 3,174, the 2001 Z06 is 3,115 which at first glance doesn't seem like a big difference, but remember the Z06 has larger wheels and tires, heavier anti-roll bars, and an upgraded clutch and differential. So how did Chevy get the Z06 to weigh less than an FRC ?? By the use of a titanium exhaust system, thinner windows, elimination of certain options (fog lamps, power passenger seat) etc. to keep the weight down as much as possible. So remember, you're starting with a weight disadvantage with an FRC, and any mods you add to the car will make the difference bigger.
The LS6 (Z06) engine has two main advantages over the LS1 in the FRC. First (duh ...) it has more torque and HP ... The 2001 Z06 has 385 HP, the 2002 and up have 405 HP. The FRC was rated at 345 HP. Second the LS6 engine has a higher redline 6,500 RPM versus the 6,000 RPM redline for the FRC engines.
With the higher redline, a different transmission (actually it's the gear ratios that are different ... the trannys look identical) is used for the Z06 ... gears 1-2-3 are about 10 percent higher than the same gears in the FRC tranny. This matches the 10 percent higher redline so that the Z06 has a gear advantage in acceleration runs. 4th gear in both trannys are the same (1:1) and 5 and 6 are slightly different. Ironically because of the higher 5th gear in the FRC it actually has a higher top speed rating than the Z06.
Finally, the Z06 suspension is upgraded with a larger front anti-roll bar, different rear spring rate, larger (and stickier) tires (Goodyear Eagle F1 Supercar tires) on larger rims ( 1 inch wider front and rear) , and the suspension alignment has more negative camber dialed into it.
There are other touches such as rear brake cooling ducts, but bottom line, with the "right" mods, you can most likely build up an FRC to be, performance wise, as good as, or better than, a stock Z06.
The problem is ... say you invest $6,000.00 in mods to get a car that is as fast as a Z06 ... that same money invested in a Z06 is just gonna make it that much faster too .... so you gotta consider that you're fighting an uphill battle to "catch" the Z06 ... the Z06 just starts from a higher level of performance than the FRC.
HTH
The Best of Corvette for Corvette Enthusiasts
also
that's why i bought a Z instead of a FRC. for the difference in money, add up the difference in years and the added performance of the Z, it came to a no brainer...Z. i started with what i wanted to build to, no down time or constantly working to make the mods, and i enjoy the car now. and i feel that the Z will be more of a collectors car in the future than any other C5 in years to come.
Last edited by Tuk; Mar 7, 2007 at 08:42 PM.





"But overall unfortunately my perception of differences between the FRC and Z06 are all what I've read off paper I don't know what this really means in real terms if it really makes much of a difference."
The Z06 was built based on the FRC ... but the following changes were made to change the entire "character" of the car ...
Curb weight of the FRC is 3,174, the 2001 Z06 is 3,115 which at first glance doesn't seem like a big difference, but remember the Z06 has larger wheels and tires, heavier anti-roll bars, and an upgraded clutch and differential. So how did Chevy get the Z06 to weigh less than an FRC ?? By the use of a titanium exhaust system, thinner windows, elimination of certain options (fog lamps, power passenger seat) etc. to keep the weight down as much as possible. So remember, you're starting with a weight disadvantage with an FRC, and any mods you add to the car will make the difference bigger.
The LS6 (Z06) engine has two main advantages over the LS1 in the FRC. First (duh ...) it has more torque and HP ... The 2001 Z06 has 385 HP, the 2002 and up have 405 HP. The FRC was rated at 345 HP. Second the LS6 engine has a higher redline 6,500 RPM versus the 6,000 RPM redline for the FRC engines.
With the higher redline, a different transmission (actually it's the gear ratios that are different ... the trannys look identical) is used for the Z06 ... gears 1-2-3 are about 10 percent higher than the same gears in the FRC tranny. This matches the 10 percent higher redline so that the Z06 has a gear advantage in acceleration runs. 4th gear in both trannys are the same (1:1) and 5 and 6 are slightly different. Ironically because of the higher 5th gear in the FRC it actually has a higher top speed rating than the Z06.
Finally, the Z06 suspension is upgraded with a larger front anti-roll bar, different rear spring rate, larger (and stickier) tires (Goodyear Eagle F1 Supercar tires) on larger rims ( 1 inch wider front and rear) , and the suspension alignment has more negative camber dialed into it.
There are other touches such as rear brake cooling ducts, but bottom line, with the "right" mods, you can most likely build up an FRC to be, performance wise, as good as, or better than, a stock Z06.
The problem is ... say you invest $6,000.00 in mods to get a car that is as fast as a Z06 ... that same money invested in a Z06 is just gonna make it that much faster too .... so you gotta consider that you're fighting an uphill battle to "catch" the Z06 ... the Z06 just starts from a higher level of performance than the FRC.
HTH

Still interested in hearing any other viewpoints. I'm not totally considered about the pure power differential I think whether it be an LS1 or LS6 they're both probably more then enough power for me at my current skill level. I think anymore might get me into trouble. I kind of lean towards a well rounded and dependable car over something skirting the edge of sensibility. I've already settled on when I do decided to go H/C update its going to be a more conservative cam setup. Not looking to set an records just a smooth powerband and street manners.
I look at the performance of the Z06 as a package. Yes GM juiced up the LS1 and created an LS6 with more HP/TQ. They took their concept from the original FRC. Put a fair bit of effort into making a well balanced sports car that handles really well for those of us who want to do more than go fast in a straight line. The Z06 is a complete package, not a 405HP engine. You'll have to do a lot more than just stuff a cam and headers in an FRC to get the same car.
Now all that said. If I was pressed on money. I would get the 99 FRC. Then as I got some play money I would make improvements where it counts for my personal goal. So for me I would improve the handling first. So it'll never be a Z06, so what. If that is what you can afford, then go for it and have fun.
If your heart is absolutely set on the Z06 then maybe wait a while longer. Save that mod money you were going to invest in an FRC and put it towards the Z06.
















it really is never ending, do your home work because there are alot of affordable nice Z's out there.

