C5Z06's... What to look for?

[syP]

What year(s) of the c5z are the ones to look for when purchasing?

I know the 2001 had only 385hp.. Is it pretty much anything 2002-2004?

Are there any differenced between those 2002-2004 at all?

Thanks

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[utryd2]

The only real diff between 02-04 is fuel systems. The 02 is by far easier to get to. Otherwise they are the same.

 

[syP]

When did they change the fuel system? And what WAS the change in it?

 

[Slolane]

saw a good write up about the yearly differences..still trying to find it..but i found this one which is pretty informative...
http://www.eliteengineeringusa.com/C5_Yearly_differences_in_models.pdf

don't touch an 01'

 

[syP]

saw you and darkss at strats last night

 

[Slolane]

in late 03' they used the c6 fuel design..moved the filter and whole fuel pump assembly to on top of the tank..

 

[Slolane]

Should of came and said what's up

 

[syP]

we were standing near the street... then you never exited.. assuming you obviously parked inside.. dont know what you, nor darkss look like.. hah

 

[syP]

So what is the most "desirable" year to buy?

 

[Slolane]

well of course the last model year is gonna be superior to the others. but not much of a change is gonna be noticed about it i don't think..i would say look for a 02' or early model 03'. One of the main reasons, the fuel assembly and filter.. The filter is mounted right on the frame next to the tank, and the fuel pump assembly is right there on the side of the tank..

 

[utryd2]

I agree 100%

 

[Stink Star]

I actually want an 01. Especially in white

 

[utryd2]

That would be the only reason to get an 01. The white looks so good on a c5z!

 

[Stink Star]

01 also had forged wheels and thinner glass and no HUD. Lighter car > more power. Considering I'd likely remove the cats anyway, the extra 20hp would never be missed. Plus little things like the badges only saying Z06 and not saying the hp.... I dunno it's just cooler to me. Plus some guy took a bone stock 01 and ran an 11.99 god pass and to my knowledge it is still the fastest c5z

 

[redevo58]

01 also had forged wheels and thinner glass and no HUD. Lighter car > more power. Considering I'd likely remove the cats anyway, the extra 20hp would never be missed. Plus little things like the badges only saying Z06 and not saying the hp.... I dunno it's just cooler to me. Plus some guy took a bone stock 01 and ran an 11.99 god pass and to my knowledge it is still the fastest c5z

Actually the forged wheels where heavier that the the spun cast ones. I have heard from some one that owned an 01 that they tend to burn oil, plus the power gain from 02-04 is from revised internal components and lighter valves etc.

 

[syP]

Thanks for the help fellas. Slolane.. what's your insurance like? I've always heard Corvette insurance isn't as bad as u would think. Plus with me being 25.. even lower

 

[redevo58]

Even though the 01 are rated at a lower power level said friend with the 01 was trapping 115 with just the zip tie mod and 128 on a direct port 150 shot.

 

[Stink Star]

The power is from the revised cam, sodium filled hollow exhaust valves, and removal of 2 pre cats. The way I think though, is that I'd likely do heads and a cam swap anyway. And of course run long tubes with no cats so it's really a non issue for me.

I've never heard anything about the oil. Likely it was a rumor started by an old fart that never beat on his car so the rings never got seated correctly.

On and another thing to look for on any C5 in general is the seals on the rear diff. The output shaft housing to the diff case seals are pretty common to leak so if u see that I wouldn't freak out since it's more or less normal, but obviously something you'd want to fix.

 

[redevo58]

The power is from the revised cam, sodium filled hollow exhaust valves, and removal of 2 pre cats. The way I think though, is that I'd likely do heads and a cam swap anyway. And of course run long tubes with no cats so it's really a non issue for me.

I've never heard anything about the oil. Likely it was a rumor started by an old fart that never beat on his car so the rings never got seated correctly.

On and another thing to look for on any C5 in general is the seals on the rear diff. The output shaft housing to the diff case seals are pretty common to leak so if u see that I wouldn't freak out since it's more or less normal, but obviously something you'd want to fix.

There is some truth to the oil burning, my buddy car would eat a quart of oil every 3k miles.

 

[Stink Star]

Yea but GM's spec for normal oil consumption is up to 1 quart for 2000 miles under normal driving conditions. I know my car (also an LS6) burns a quart between oil changes, but I don't worry because that's expected for the level of flogging I do.

 

[EmersonHart13]

Good info in here. Matches my research exactly.

 

[utryd2]

Insurance is pretty cheap. Too many old farts have em and don't wreck em. For me it was cheaper than my lightning and an 03 04 cobra.

 

[PANDA]

Is this a repost? Or am I thinking about one of those attention whore facebook status updates you made before you unfriended me?

Seriously dude, wasnt it just the other week you said you were going back to school and were not going to spend money on cars untill you get a "real job".

 

[Eagle]

truf

http://www.thechicagogarage.com/forum/showthread.php?t=54395

 

[10sec]

Even though the 01 are rated at a lower power level said friend with the 01 was trapping 115 with just the zip tie mod and 128 on a direct port 150 shot.

AFAIK, he actually trapped 117 with the zip tie mod and a nitrous tune. That thing was a freak. Graham was never able to trap 117 even with mods, although scott can drive like a mofo.