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[Z06] Cheapest mods for 500HP

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Old Nov 9, 2010 | 11:04 AM
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Default Cheapest mods for 500HP

Hello,

I am currently shopping around for a great used sports car and I have decided to get a 2004 zo6. I can't believe you can pick these up for about 25k now! I would like to mod the car to about 500HP. What mods are recommended and how much money will I have to spend to get there? I would like to use this car at the drag strip and on the track. I am not interested in forced induction, I want to go all motor. Any help is greatly appreciated.
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Old Nov 9, 2010 | 11:10 AM
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500 at the rear wheels? ...without forced induction? Unless you want to use nitrous I suspect you'll need to increase the engine displacement.

You should check out the Performance Results forum to see what kind of numbers people are putting down with different combinations of mods.
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Old Nov 9, 2010 | 11:17 AM
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I would say vararam/headers/cam/tune would get you to around 500BHP 400-430rwhp. If you got everything brand new you are probably looking at around $1k-$1500 headers, $250 vararam, $400 tune, $1500 for cam and supporting mods pushrods/springs. These prices dont include labor, but for around $3500 you can have 500hp...This price is for new stuff, you can shop around the forum and find good deals from supporting vendors and in the classifieds.
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Old Nov 9, 2010 | 11:27 AM
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Originally Posted by skyavonee
500 at the rear wheels? ...without forced induction? Unless you want to use nitrous I suspect you'll need to increase the engine displacement.

You should check out the Performance Results forum to see what kind of numbers people are putting down with different combinations of mods.
I was actually looking for 500 at the flywheel, so adding about 100HP to the car. I would like to run in the 11's in the 1/4 mile. I'll check out the performance results section,thanks.
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Old Nov 9, 2010 | 11:57 AM
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Originally Posted by ZO6MikeH
I was actually looking for 500 at the flywheel, so adding about 100HP to the car. I would like to run in the 11's in the 1/4 mile. I'll check out the performance results section,thanks.
That car with out bolts on's will go 11's!
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Old Nov 9, 2010 | 11:59 AM
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Originally Posted by fisher auto
That car with out bolts on's will go 11's!
Nice! It's such a great amount of performance for the money!
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Old Nov 9, 2010 | 12:15 PM
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I have an 04z bought bone stock just added lg superpro headers about $1800.00 and am going to add. a vararam $250.00 and tune in the spring. i was going to go with a cam also but after taking the car out WITHOUT the vararam and a tune was suprised at how much more torque there is with just bolting on the headers, cats, and x pipe. I am going to wait till after the vararam and tune to make that discision. my car is a street car. if your a beginer at the track start with longtube headers, a cai setup, and tune then move up from there.
BECAREFUL OF THE MOD. BUG

Steve
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Old Nov 9, 2010 | 12:20 PM
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Also never underestimate the effect of weight reduction! If my car were not a daily driver, and its primary use was instead for the track and strip, I'd rip out the carpet, insulation, door panels, speakers, and stereo, and I'd swap for lighter bucket seats, clutch/flywheel, and wheel/tire combos. This alone would be noticeable on the drag strip!
Also, lowering it an inch or more will be great for track use. Ideas like these won't give you the bragging rights of insane hp, but they will lower your times.

Last edited by skyavonee; Nov 9, 2010 at 12:23 PM. Reason: added one thing
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Old Nov 9, 2010 | 12:29 PM
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Originally Posted by machz800ps
I have an 04z bought bone stock just added lg superpro headers about $1800.00 and am going to add. a vararam $250.00 and tune in the spring. i was going to go with a cam also but after taking the car out WITHOUT the vararam and a tune was suprised at how much more torque there is with just bolting on the headers, cats, and x pipe. I am going to wait till after the vararam and tune to make that discision. my car is a street car. if your a beginer at the track start with longtube headers, a cai setup, and tune then move up from there.
BECAREFUL OF THE MOD. BUG

Steve
I am well aware of the MOD bug. I actually dropped 10k on my 07 Si Civic...LOL at 300whp it's respectable but a stock zo6 will beat it in the 1/4. haha it will be my daily driver/autocross car once I get the Z.
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Old Nov 9, 2010 | 12:33 PM
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Originally Posted by skyavonee
Also never underestimate the effect of weight reduction! If my car were not a daily driver, and its primary use was instead for the track and strip, I'd rip out the carpet, insulation, door panels, speakers, and stereo, and I'd swap for lighter bucket seats, clutch/flywheel, and wheel/tire combos. This alone would be noticeable on the drag strip!
Also, lowering it an inch or more will be great for track use. Ideas like these won't give you the bragging rights of insane hp, but they will lower your times.
I will keep that in mind as well. Although after looking at the numbers people on the forum are getting from basic bolt ons I don't think it will be necessary. I will be happy with 11's and I see some people doing that bone stock!!! WOW America....**** yeah!!! lol
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Old Nov 9, 2010 | 01:04 PM
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For what you want a good cam and bolt ons will get you there. Throw in a good set of heads for good measure and I'm sure you'll be more than satisfied
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Old Nov 9, 2010 | 02:33 PM
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Just headers and cam got me 425rwhp. I don't know what it is at the flywheel, but I assure you it is screaming fast.
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Old Nov 9, 2010 | 03:30 PM
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cam, headers and tune and be done with it
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Old Nov 10, 2010 | 09:42 AM
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500 flywheel hp is stock LS7 territory - which is closer to 450rwhp than 400rwhp and is not a cheap/simple task to pull off on the LS6.

You will need full headers, aggressive cam and ported heads + the "usual bolt ons" to reliabably and HONESTLY achieve.

Take every "my car makes XYZrwhp" post with a punch of salt and request for a dyno chart.

Having taken my 2001 385hp LS6 C5Z06 from a true stock 330rwhp all the way to 600rwhp n/a LS7 - there is one universal truth I have learned ------ none of the steps along the way ever cost as LITTLEas first estimated, and none of the powergains was as HIGH as advertised

And finally, when ever a "my car makes" claim without corrected dyno charts being provided, was made and we/I got a chance to see said car on the dyno or in action, they NEVER made the numbers claimed.

And finally, the cars that where posting decent dragstip times where always doing so because of DRIVER skill rather than car power numbers, and it waqs always refreshing to see so many "low power" cars putting down blistering drag strip times when the right driver was behind the wheel.

I don't even remember the point of my reply...
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Old Nov 10, 2010 | 10:07 AM
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I completely agree with your post even if you forgot the point, lol. If I don't hit exactly 500HP I won't be disappointed. Seems to me I want to do the Vararam intake, long tube headers, x-pipe, full exhaust, and maybe some gears, 4,10's maybe? and perhaps a cam upgrade. How much would ported heads cost?
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Old Nov 10, 2010 | 10:32 AM
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What is your definition of cheap ?

ie how much $$$ do you have to spend ?
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Old Nov 10, 2010 | 10:41 AM
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Originally Posted by ZO6MikeH
Seems to me I want to do the Vararam intake, long tube headers, x-pipe, full exhaust, and maybe some gears, 4,10's maybe?
I've seen one or more people on this forum say that 4.10 is too much for the Z06, and 3.90 is better. I don't actually have experience with this though and I don't recall the exact application they were talking about, whether it was street, track, or strip, but it's something to look into.
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Old Nov 10, 2010 | 10:48 AM
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Originally Posted by AU N EGL
What is your definition of cheap ?

ie how much $$$ do you have to spend ?
I would say 5k would be about what I'd like to spend. Labor would have to be included as I'm an IT guy.
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Old Nov 10, 2010 | 10:52 AM
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Originally Posted by skyavonee
I've seen one or more people on this forum say that 4.10 is too much for the Z06, and 3.90 is better. I don't actually have experience with this though and I don't recall the exact application they were talking about, whether it was street, track, or strip, but it's something to look into.
yeah, I would research that more before actually doing it. I know when I put 4.10's in my Cobra stang it made a huge difference. I would assume most Z's would be in 4th gear when they finish the 1/4 mile? I would have to adjust it to the other mods I get so I would top out 4th crossing the line.
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Old Nov 10, 2010 | 02:31 PM
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Originally Posted by ZO6MikeH
yeah, I would research that more before actually doing it. I know when I put 4.10's in my Cobra stang it made a huge difference. I would assume most Z's would be in 4th gear when they finish the 1/4 mile? I would have to adjust it to the other mods I get so I would top out 4th crossing the line.
I also put 4.10s in my Mustang Cobra (01) and hated it. First gear was already pretty high, and with the gears, lasted about a second. If your car is an A/T, then maybe, but with a 6 spd. 410s may by too much. Remember, if you start power modding, the clutch is on borrowed time. This takes a great chunk out of your budget, especially if you're paying a mechanic to install it.
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