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Old Jun 17, 2015 | 02:45 PM
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Default Need advice..

I want to start off and state that THIS IS NOT to start some base vs Z06 battle....

With that said, I am faced with a dilemma. I have a cam and bolt on 05 that makes 454rwhp and is basically paid off. I am to the point where I am thinking of adding even more power.

My mods are as follows:

Custom spec'd cam
FAST 102
160* TStat
LG Super Pro's with Off-road Xpipe
LG GT4 catback
LG World Challenge Wheels with 285 fr and 325 rr tires

I have been kicking around the idea of adding heads or just skipping to an ECS kit. The problem is, if I start upping the power, I am afraid that I will have to continue to upgrade the weak components on the 05.

With that said, is it worth keeping the car and doing this, or is it time to trade it in on a Z06 and start over the modding process with a better platform? I have found an 08 with 30k miles for 39k. I feel like upgrading components on my current car could easily add up to the difference in the upgrade t oa Z06.

Thanks in advance for not flaming me, or starting a purist Z06 war.
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Old Jun 17, 2015 | 03:15 PM
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Originally Posted by EnviedC6
I want to start off and state that THIS IS NOT to start some base vs Z06 battle....
With that said, I am faced with a dilemma. I have a cam and bolt on 05 that makes 454rwhp and is basically paid off. I am to the point where I am thinking of adding even more power.
My mods are as follows:
Custom spec'd cam
FAST 102
160* TStat
LG Super Pro's with Off-road Xpipe
LG GT4 catback
LG World Challenge Wheels with 285 fr and 325 rr tires
I have been kicking around the idea of adding heads or just skipping to an ECS kit. The problem is, if I start upping the power, I am afraid that I will have to continue to upgrade the weak components on the 05.
With that said, is it worth keeping the car and doing this, or is it time to trade it in on a Z06 and start over the modding process with a better platform? I have found an 08 with 30k miles for 39k. I feel like upgrading components on my current car could easily add up to the difference in the upgrade to a Z06.
Thanks in advance for not flaming me, or starting a purist Z06 war.
Not sure what "weak components" (other than the rear end) you mention. Having said that, and not knowing what your '05 is worth, it would seem realistic to buy the Z06 with the upgrade money, be happy while you save, and upgrade from there.
Just sayin...
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Old Jun 17, 2015 | 03:31 PM
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Originally Posted by ruxvette
Not sure what "weak components" (other than the rear end) you mention. Having said that, and not knowing what your '05 is worth, it would seem realistic to buy the Z06 with the upgrade money, be happy while you save, and upgrade from there.
Just sayin...
Well, the clutch and rear end are about 5k just for parts. Plus if I ever go boost, I would have to somehow get ahold of a special 2.5 bar map sensor, which I haven't found yet, because of the oddity of ECU the 05 has. The suspension and brakes will need upgrading too.
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Old Jun 17, 2015 | 03:39 PM
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Do the stupid thing and get a ZR1
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Old Jun 17, 2015 | 03:52 PM
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Originally Posted by Crabbers
Do the stupid thing and get a ZR1
HAHA I wish I had that coin... There is a Lingenfelter built Cyber Grey one for sale in Indiana for 73k... It makes over 800rwhp on pump gas and over 900rwhp on race gas... Everything on that car has been touched too..


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Old Jun 17, 2015 | 03:54 PM
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Originally Posted by EnviedC6
HAHA I wish I had that coin... There is a Lingenfelter built Cyber Grey one for sale in Indiana for 73k... It makes over 800rwhp on pump gas and over 900rwhp on race gas... Everything on that car has been touched too..


Best color

I would start stock though and do everything yourself. Takes out the fun if someone else does it. JMHO though.
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Old Jun 17, 2015 | 04:02 PM
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Sorry for derailing your thread a bit btw.

Back on topic, I think it depends on your end goal. Are you really wanting more power, or do you just like having something to work on and make your own? If you plan on selling your '05 down the line, the more mods you put into it, the more you're going to lose. You will never see the cost of upgrades coming back to you when you sell it. It will add value, but less than what you put into it for sure.

Financially, it actually makes some sense (in my twisted world) to go to the Z06. You'll end up losing less money than if you kept upgrading your '05 and then sold it, you get a new project, and you get a higher power ceiling. That all being said, are you ever going to have "enough" power, or are you going to constantly be wanting more? Cause then there's no helping you
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Old Jun 17, 2015 | 04:04 PM
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I would PM Schpenxel, he has a nice 2005 set up like you want to do to yours, so he has "real world" experience.

I personally don't like supercharging a Z06, it will need a lot of beefing up of components too....

I would look at '08 or '09 LS3's to supercharge, if you decide not to do your 2005, if it were me. Or a 2010 and newer Grand Sport.
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Old Jun 17, 2015 | 04:09 PM
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Originally Posted by Seadawg
I would PM Schpenxel, he has a nice 2005 set up like you want to do to yours, so he has "real world" experience.

I personally don't like supercharging a Z06, it will need a lot of beefing up of components too....

I would look at '08 or '09 LS3's to supercharge, if you decide not to do your 2005, if it were me. Or a 2010 and newer Grand Sport.
Good advice.

If you go with a Z06 I would keep it stock. Worth more when you sell it.
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Old Jun 17, 2015 | 04:58 PM
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Default Z06!!

Originally Posted by EnviedC6
I want to start off and state that THIS IS NOT to start some base vs Z06 battle....

With that said, I am faced with a dilemma. I have a cam and bolt on 05 that makes 454rwhp and is basically paid off. I am to the point where I am thinking of adding even more power.

My mods are as follows:

Custom spec'd cam
FAST 102
160* TStat
LG Super Pro's with Off-road Xpipe
LG GT4 catback
LG World Challenge Wheels with 285 fr and 325 rr tires

I have been kicking around the idea of adding heads or just skipping to an ECS kit. The problem is, if I start upping the power, I am afraid that I will have to continue to upgrade the weak components on the 05.

With that said, is it worth keeping the car and doing this, or is it time to trade it in on a Z06 and start over the modding process with a better platform? I have found an 08 with 30k miles for 39k. I feel like upgrading components on my current car could easily add up to the difference in the upgrade t oa Z06.

Thanks in advance for not flaming me, or starting a purist Z06 war.
Get the Z06, If your not happy with a juiced up LS2!! The rear end is really the only weak link in the 2005? I have one with the Z51 package and Love it. I'm more than happy with the performance too! The Z06 may be good for you just stock?? It is considered a super car to most!!
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Old Jun 17, 2015 | 06:44 PM
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You do know that the weaker platform is the Ls7 engine dont you? The valve train is in question and many engine have blown up because many speculate the valve guides and valve seats are non concentric. Plus the ability to handle power goes to the LS3 hands down. You can add more and more and it can take it. Try that with a ls7 and you will probably go boom. Hell the ZR1 is essentially a LS3 with race ready forged bits and titanium. I am speculating but why wouldn't GM use the LS7 for the Zr1 if it was the stronger or more capable of the two...? Get a 2008 with the LS3 and go hog wild...

Last edited by Cor430vette; Jun 17, 2015 at 06:48 PM.
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Old Jun 17, 2015 | 06:59 PM
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dictates that between you adding it yourself vs a manufacturer doing most of the work on a mass produced scale, the Z06 therefore is the wiser decision, what you lack in individual customization you more than make up for in cost saving.........
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Old Jun 17, 2015 | 07:04 PM
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While the rear end in an 05 may be problematic, I hear theres no problem with an LS-2 handling a S/C such as the Edlebroc..(sp ?). If that's the case then not sure why a ZO-6 would be any different.
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Old Jun 17, 2015 | 07:19 PM
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Take your car to Lingifelter give them around $18,000 and you'll have one awesome road machine from engine to suspension. Or just trade for a 08' Z06 or newer.
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Old Jun 17, 2015 | 07:22 PM
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Originally Posted by dbirdhouse1
dictates that between you adding it yourself vs a manufacturer doing most of the work on a mass produced scale, the Z06 therefore is the wiser decision, what you lack in individual customization you more than make up for in cost saving.........
Still gotta spend $$$ to get the valve train checked and fixed. Which some have speculated what GM does is not a fix but a bandaid. So it will be okay for awhile then the play/wiggle in the valves will return. This is the primary reason I did not buy a Z06, I came back with the sole intention of buying a Z06 but I did the research first. I wasn't going to make the same mistake a did when I bought a M3 with a S65 engine which has connecting rod bearing clearance issues so I did allot of research....until I found out the disappointing truth. Some probably have no problem at all....but its your gamble. While the LS3 is rock solid. Dont believe me? do a search on valve train issues on the Z06/ls7. Do a search engine search... I'm not a Z06 hater, I love em...just their engines are a gamble.

Last edited by Cor430vette; Jun 17, 2015 at 07:31 PM.
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Old Jun 17, 2015 | 08:41 PM
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Originally Posted by Cor430vette
Still gotta spend $$$ to get the valve train checked and fixed. Which some have speculated what GM does is not a fix but a bandaid. So it will be okay for awhile then the play/wiggle in the valves will return. This is the primary reason I did not buy a Z06, I came back with the sole intention of buying a Z06 but I did the research first. I wasn't going to make the same mistake a did when I bought a M3 with a S65 engine which has connecting rod bearing clearance issues so I did allot of research....until I found out the disappointing truth. Some probably have no problem at all....but its your gamble. While the LS3 is rock solid. Dont believe me? do a search on valve train issues on the Z06/ls7. Do a search engine search... I'm not a Z06 hater, I love em...just their engines are a gamble.
#TrueStory.

Plus is bass-ackwards to force induct an EVEN higher compression motor. The LS3 is SICKLY and LOVES boost. Personally, I am going to do exactly as 430 did... '12/up GS (black obviously). You get all the Z06 greatness, none of it's weakness. It's still a desired model. BOOST IT TO THE MOOOOOOOOOOOOOOOOON!!!!

Just my .02
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Old Jun 17, 2015 | 08:42 PM
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or I'm gonna get a ZR1. Same diff.
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Old Jun 17, 2015 | 09:06 PM
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If you enjoy mods, I would stay with the LS2. No way I would try to push a LS7 for more power. Some have done it, but if you blow that one you are into a lot more cost to replace, I would think.
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Old Jun 18, 2015 | 08:10 AM
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Originally Posted by TheBabyBadger
or I'm gonna get a ZR1. Same diff.
This is what I wanted in the end, but I just don't drive enough for me to buy it... $$$ mid to high 60's....
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