how to turn your Z06 into a ZR1 only better!!!!

how to turn your Z06 into a ZR1 only better!!!!

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Discussion

chuntington101

Original Poster:

5,733 posts

242 months

Tuesday 11th November 2008
quotequote all
http://forums.corvetteforum.com/c6-forced-inductio...

the pictures say everything really!

i want i want i want! smile

Chris.

franv8

2,212 posts

244 months

Tuesday 11th November 2008
quotequote all
Add me to the list! Can anyone sort me a loan?

franv8

2,212 posts

244 months

Tuesday 11th November 2008
quotequote all
Hang on - no ceramic brakes though - aren't these equally one of the main attractions of the ZR1?

Tom74

658 posts

236 months

Tuesday 11th November 2008
quotequote all
Ah but you should be able to get them from GM as parts, assuming they aren't all put on Saab's in the other thread!

Vet Guru

2,182 posts

246 months

Tuesday 11th November 2008
quotequote all
bounce

franv8

2,212 posts

244 months

Tuesday 11th November 2008
quotequote all
Hmm, wonder what the ceramics run to - Mr Dobbie I think reckoned it'd be a significant chunk of the price difference.

Like the bonnet too!

Gixer

4,463 posts

254 months

Tuesday 11th November 2008
quotequote all
They're brembo's. Somewhere around 15-20k

franv8

2,212 posts

244 months

Tuesday 11th November 2008
quotequote all
Gixer - you don't need to turn your car into a ZR-1 - it already is one (in case you'd forgotten..)

vetteheadracer

8,271 posts

259 months

Tuesday 11th November 2008
quotequote all
franv8 said:
Gixer - you don't need to turn your car into a ZR-1 - it already is one (in case you'd forgotten..)
It would be expensive to remove the hyphen.....

Godzilla

2,033 posts

255 months

Tuesday 11th November 2008
quotequote all
The ZR1 brakes are not a direct bolt-on replacement for the Z06.

I think they need new hubs and they will require the 19 and 20" wheels to clear them too.

In the real world, you are unlikely to gain much benefit over the Brembo GT 14" or 15" kits already available for the Z06.
And if you do drive the car hard enough on a track day to notice the difference, the incredibly expensive rotors will need replacing very quickly.

I've said before that the main reason a Z06 still makes a better track car ownership proposition than the ZR1 is the brakes and their running costs.

mitch_

1,282 posts

230 months

Tuesday 11th November 2008
quotequote all
Given that the front rotors are used on an FXX and the rears on Enzos they total up to around £25k, just for the rotors alone. Godzilla is right though, I don't see much merit in trying to copy a ZR1 because afterwards it will always be a replica. In the same way that there is little interest in the US for replicas of Pontiac GTO Judges or Plymouth Road Runners. If you want to modify your car you should do it for your own reasons, not imitation. However I do rate the front splitter and side diffusers....

Godzilla

2,033 posts

255 months

Tuesday 11th November 2008
quotequote all
I love the look and aero functionality of those parts too.
But how long would the CF splitter last in the UK?

One unseen compression taken slightly too fast and it's time to buy a (very expensive) new one...
A similar design in the cheap, flexible plastic the Z06's is made of is needed.

mitch_

1,282 posts

230 months

Tuesday 11th November 2008
quotequote all
I'm not sure I completely agree as the splitter mounts the bottom of the nose which has some give in it. Most of the scraping you hear over bumps is the splitter for the radiators in front of the wheels anyhow.

XTR2Turbo

1,535 posts

237 months

Tuesday 11th November 2008
quotequote all
This doesn't make sense to me. Are these guys respected tuners?

No way will an LS7 safely take this much more power or torque than standard without changing the pistons and rods and ideally the crank. These engines are really built to a budget despite the marketing.

David

mitch_

1,282 posts

230 months

Wednesday 12th November 2008
quotequote all
Our current target for the C5 GT is to see 700Bhp from an LS7 but we are talking throttle bodies onwards. I would have some serious concerns about the compression involved using a supercharger in the manner that MTI are suggesting. Doubt it comes with 100,000 mile warranty!

chuntington101

Original Poster:

5,733 posts

242 months

Wednesday 12th November 2008
quotequote all
XTR2Turbo said:
This doesn't make sense to me. Are these guys respected tuners?

No way will an LS7 safely take this much more power or torque than standard without changing the pistons and rods and ideally the crank. These engines are really built to a budget despite the marketing.

David
XTR2Turbo and Mitch,thats what i thought! i have asked MTI in the attached thread to see what they say. having said all that the old LS1's used to have to go fully forged at about 500bhp....now guys are making well into the 700bhp (some more) region without problems.

i'll see what MTI say.

dose anyone do a 'drop in' rod and piston upgrade for the LS7??

Chris.

mitch_

1,282 posts

230 months

Wednesday 12th November 2008
quotequote all
The problem you've got is the rods are about as strong as anything you'll get in there, but in higher power configurations we reckon that they'll be hard on bearings as they're constructed of titanium. There will definitely be replacement pistons, but surely MTI would have to replace those anyhow. I wouldn't expect them to say anything on the forum that's particularly enlightening as they're trying to sell them, not admit to potential shortcomings.....

Godzilla

2,033 posts

255 months

Wednesday 12th November 2008
quotequote all
mitch_ said:
I'm not sure I completely agree as the splitter mounts the bottom of the nose which has some give in it. Most of the scraping you hear over bumps is the splitter for the radiators in front of the wheels anyhow.
Yes, but the ZR1 splitter juts forward a LOT compared to the Z06's. They also had to strengthen the nose to prevent the splitter pulling it down, so it will be less flexible than the Z06's nosecone where it matters.
I'm not saying I wouldn't buy a ZR1 because of it, it would just p1ss me off if I had to buy a new splitter after every spirited cross-country drive!


I agree that forged pistons are a must for MTI levels of power.
As for cranks, don't forget the LS7's IS forged and Katech say they have never seen a single example of the titanium rods failing either.

chuntington, I'm sure Katech will sell you a set of their forged LS7 pistons.

XTR2Turbo

1,535 posts

237 months

Wednesday 12th November 2008
quotequote all
My LS7 was dynoed at 697 bhp and 620 ftlb

None of the internals are standard. I was advised that I would be gambling with them at anything much above about 550bhp.

Mind you I may have gone to the other extreme now and have had a bottom end built that could take 1000bhp.

I was advised that there is no way the standard piston crowns will handle forced compression.

David

roughrider

978 posts

192 months

Wednesday 12th November 2008
quotequote all
Correct me if i'm wrong, but i was under the impression the ZR1 uses the 6.2 engine?! The same as in the Cadillac, but more boost.