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Old Jan 12, 2011 | 08:34 AM
  #1  
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Default Complete Noob With Some Performance Questions

Good morning all,

I have some questions about getting some additional performance out of my 2007 LMB M6 standard suspension vette. I have lurked on this forum for quite some time. I think I have finally decided to go for the Corsa Xtreme as my first real mod.

In addition, I am going to get new tires first thing next Spring. What about adding headers or other performance mods? I do not daily drive the car but I certainly expect to log some street miles and would like to get involved with a few track days.

In your opinion, should I get a tune after adding the exhaust or add other mods first? I'm not really concerned with resale as I plan to keep and enjoy this car for awhile. Having said that, I would like to get the best bang for the buck as far as performnace mods and dont want to spend over $10,000 in mods.

Any suggestions on where I should begin? I know almost zero about engines and mods but plan on learning as I go, and I thought this place is a great place to start
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Old Jan 12, 2011 | 09:30 AM
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I wouldn't get a tune after the catback exhaust.

Your next mod should be a new air intake. The LS2 air intake is a horrible design. Either get a true cold air intake that pulls air from outside of the car OR get a good aftermarket intake setup (Like K&N or Halltech) and prop open the shroud under it so cool air is available to it.
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Old Jan 12, 2011 | 09:42 AM
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Originally Posted by Walshman
Good morning all,

In addition, I am going to get new tires first thing next Spring. What about adding headers or other performance mods? I do not daily drive the car but I certainly expect to log some street miles and would like to get involved with a few track days.

In your opinion, should I get a tune after adding the exhaust or add other mods first? I'm not really concerned with resale as I plan to keep and enjoy this car for awhile. Having said that, I would like to get the best bang for the buck as far as performnace mods and dont want to spend over $10,000 in mods.

Any suggestions on where I should begin? I know almost zero about engines and mods but plan on learning as I go, and I thought this place is a great place to start
If you have a budget approaching $10k, you really need to decide what your goals for the car are. I assume the $10k includes labor.

For a track car you might want handling and brake upgrades before more power.

There are economies of scale of doing some mods together. If you are thinking of adding 50 - 80 HP to the car, many shops offer packages for headers & cam install combos. It also saves tuning the car twice if you add headers now and then get a cam later. If you want 100+, a centri S/C would get you there and leave some money for better shocks and sways.
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Old Jan 12, 2011 | 09:48 AM
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and dont waste your money on any cai or headers or catback and go turbo. if your just going NA dont waste your money on any catback
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Old Jan 12, 2011 | 09:57 AM
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If I had 10K to spend I would do headers and an A&A Vortech S/C kit. Oh. Wait a minute....thats what I did do. And you'll still have a nice chunk of change left over. Get between 500-600rwhp with just those two things. Drives exactly like stock till you put the foot to it and it turns it ito a whole 'nother animal.
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Old Jan 12, 2011 | 10:29 AM
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better intake(fast)
cam..springs..ect.
headers
true CAI
of course....a tune
I would get it all done at a good rep. shop.....probably one of the vendors on the forum.

You will have money left, but a car that will goooo.

I would not worry too much about the Corsa's....no increase in power, but they're expensive.

Larry

Last edited by lebvette; Jan 12, 2011 at 10:38 AM.
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Old Jan 12, 2011 | 02:37 PM
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Although a Corsa exhaust is a quality product and sounds great , it is not going to add performance. Headers alone will only result in small gains. However, they are a great addition to a car with other mods like cam and intake.

The largest gains will come from a cam change and tune. Be careful. Don't over-do the cam specs as it will trade all your great low end torque for top end HP and the car will be a bear to drive.

Almost any tire that will fit the car will perform better than the OEM Goodyears. I like the Michelin PS2. They are expensive, but will outlast the Goodyear Supercars by 2-1. Another nice additon is Bilstein shocks. With some smart shopping, you can get a new set of Bilstein Sport shocks for just over $200 and they can be installed in under 2 hours.
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Old Jan 13, 2011 | 01:44 PM
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Originally Posted by Walshman
Good morning all,

I have some questions about getting some additional performance out of my 2007 LMB M6 standard suspension vette. I have lurked on this forum for quite some time. I think I have finally decided to go for the Corsa Xtreme as my first real mod.

In addition, I am going to get new tires first thing next Spring. What about adding headers or other performance mods? I do not daily drive the car but I certainly expect to log some street miles and would like to get involved with a few track days.

In your opinion, should I get a tune after adding the exhaust or add other mods first? I'm not really concerned with resale as I plan to keep and enjoy this car for awhile. Having said that, I would like to get the best bang for the buck as far as performnace mods and dont want to spend over $10,000 in mods.

Any suggestions on where I should begin? I know almost zero about engines and mods but plan on learning as I go, and I thought this place is a great place to start
If you are interested in track days I would hold off until you have actually done a couple. Then if you like doing them the first mods should be safety, brakes, wheels and tires, reliability things like larger radiator and EOC, and handling. Power mods do squat for you on the street where you are driving at part throttle at an rpm that is below the point where the mods make a difference in power. On the track a gain of 30 HP will not make anywhere near as much difference as a set of sticky tires especially if that gain is only seen at high rpm. Track driving means spending a lot of time accelerating out of corners in the middle rpm range and you can only put down as much HP as the tires will accept. Once you can use the capability the non power mods give you then a power increase will help.

I know some people who have pretty much turned their cars into track only cars with coil over suspension, big brakes, roll cages, etc. And, without a single power mod (not even to the exhaust) they are some of the fastest cars on the track.

Bill

Last edited by Bill Dearborn; Jan 13, 2011 at 01:47 PM.
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Old Jan 13, 2011 | 02:06 PM
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No offense, but if you're going to pop for about $10K because you want to go faster, spend a day or two at a high performance driving school. That will make you faster than just about anything you might do to your Vette.
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Old Jan 13, 2011 | 02:11 PM
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Originally Posted by bonnevillebill
No offense, but if you're going to pop for about $10K because you want to go faster, spend a day or two at a high performance driving school. That will make you faster than just about anything you might do to your Vette.
That won't help make your car faster when your plant your foot in the floor
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Old Jan 13, 2011 | 04:07 PM
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Originally Posted by Walshman
Good morning all,

I have some questions about getting some additional performance out of my 2007 LMB M6 standard suspension vette. I have lurked on this forum for quite some time. I think I have finally decided to go for the Corsa Xtreme as my first real mod.

In addition, I am going to get new tires first thing next Spring. What about adding headers or other performance mods? I do not daily drive the car but I certainly expect to log some street miles and would like to get involved with a few track days.

In your opinion, should I get a tune after adding the exhaust or add other mods first? I'm not really concerned with resale as I plan to keep and enjoy this car for awhile. Having said that, I would like to get the best bang for the buck as far as performnace mods and dont want to spend over $10,000 in mods.

Any suggestions on where I should begin? I know almost zero about engines and mods but plan on learning as I go, and I thought this place is a great place to start
Really depends on what you want to focus on as you go.

I would say if you are going to do some track days, spend time at a school and learn not only how to drive it, but learn your car. You'd be surprized how much 'seat time' will make a difference. Before you go with that you should focus on brake pads, lines, fluids and go have fun.

I wouldn't worry about a tune for a cat back. Mufflers are not going to pick up any HP, if they even get 2-4 hp over stock. Headers will do more for weight loss, and HP over anything else.

You can gain a lot of performance in one of these cars for $10k. Figure out just how much time you want to spend on track. If you are going to get hooked on HPDE's, and it is easy to do, I would start to put the money towards safety eq., braking, and handling. Speed it will come pretty easy.

If you are just looking for HP, bang for the buck. Headers, cam, and a cold air are hard to beat. I wouldn't do a turbo car for a road race project if $10k is your limit.
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Old Jan 13, 2011 | 05:42 PM
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Originally Posted by FloydSummerOf68
That won't help make your car faster when your plant your foot in the floor
Actually it will. Most people don't plant their foot to the floor when they get on a track. I have had plenty of Novice students who don't even come close to getting the throttle floored for more than a few seconds. A day or two of instruction and they get a lot more confidence. With 10 to 20 track days under their belt they can pretty much roll into full throttle a lot sooner exiting a turn, keep full throttle longer on the straights, and keep as much part throttle in the turns as the tires will allow. Quickest time on a straight as with drag racing is pretty much determined at the start. Get to full throttle sooner than the other guy and it takes a lot of HP to make up for the lead you get coming out of the turn. Add in higher speeds through the turns that an experienced driver will attain and pretty soon the lower HP car with the experienced driver is lapping the higher HP car driven by the novice. Money spent on seat time and safety items is much better spent than money spent on power adders.

Bill
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