Ok, its almost crunchtime to the day I order my '08! As youl see in my sig some basic mods I already have planned. I wanted to go with FI but I read here that FI with the Z51 package basically renders 1st and 2nd gears useless because of the shorter gear ratios.

Would it be better for me to invest in rear gears on the car instead of FI since I am getting the Z51 package? My car is going to be a manual so it will already have the 3.42's in the rear. I was thinking going with 3.90's. How much will the fuel mileage be compromised? If its a minimal amount then I can live with that. My car isnt going to be a daily driver but I still would like to know these things. I figure changing gears is like adding horsepower, and besides it will be a hell of alot cheaper than going FI. Naturally as you see I am going with a full exhaust system, so if I do go with the gears my other mods will be a CAI, mass air flow sensor and possibly a better intake manifold to compliment my full exhaust system. I figure those mods along with gears will make the car pull rather nicely.

BTW I dont plan on tracking the car, nor road racing. I just want the car to perform alot better than stock. I want to be extra confident at a light knowing I have a very fast car. Secondly I want people to get in it saying "wow this thing is crazy"!

 

Here's something I found in the "tech" section of the forum... BTW: you may want to post your question there and in the "forced induction" section for some feedback...
http://forums.corvetteforum.com/show....php?t=1906680

Good luck...

 

Thanks for the info...

I actually did mean to post this in the tech section, but I must have not realized I hit the "start new thread" link while I was still in the general section. Thanks again!

 

Althought it appears you've done your due diligence, you mention a mild concern with how contemplated modifications may affect gas mileage yet apparently have no anxiety about losing vast portions of your factory warranty resulting from the modifications (which is fine).

If there's any similarity between what I did and going with FI I suggest you consider going with larger wheels and tires (possibly non-runflats). I still prefer the 'keep-on truckin' security runflats provide for street driving but there's no question non-runflats are better on the track...or for those traffic light encounters in your case. Even with Z06 rubber on my car I'm traction-challenged but the larger wheels and tires made a considerable improvement.

Lastly, as you're looking for 'wow factor' IMO those 4.10 gears aren't going to impress anyone getting into your car. You'll impress more people with a supercharger...more so when you wind it out but there's no question a SC makes an impression where gearing doesn't.

Good luck whichever way you decide to go!

 

Thanks for the info! :Thumbs:

I thought about the tires but then we have the "sticking out of the side" issue, and to take care of that I will have to go with the widebody kit, now we are running into more money!

Its great to have a site like this! Where other moddies can bang heads together and make it easier to decide what mods to go with.

I will still look into all of the possibilities.

 

cganing your gears is not going to cause a wow factor with anyone.bolt on the procharger kit and you will be hard pressed to not get a wow from anyone who rides in your car. i caution you DONT TURN THE TRACTION CONTROL OFF !!!!! with stock run flats and the ati system to say the car will get away from you is an under statement

 

You are welcome I'll be reading some of the replys as well...

 

Most people don't realize it, but with the Z51 package the first 3 gear ratios give you the same effect as the standard transmission with a 3.82 rear end. Here is a basic math example:
2.97 (1st gear-Z51) x 3.42= 10.16. 10.16/2.66(1st gear for standard transmission) = 3.82.

I chose to go with FI.

BJK

 

If you really want the wow factor, skip the bolt-ons (gears, exhaust) and put a maggie s/c on it. Big torque gains and the S/C whine at WOT in the upper rpms will accomplish your goal of acheiving the wow factor.

When you get bored with that power level, and your wallet has recovered, you can add headers and/or gears.