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Old May 21, 2011 | 05:27 PM
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Default While I'm installing the blower...

Next week I'll be receiving an Edelbrock blower kit for my 2011 Grand Sport (automatic) and will install it in my shop. While I'm "in there," is there anything else I should do?

I'm going to install the upgraded fuel pump.

Lee in Dallas
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Old May 21, 2011 | 06:08 PM
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if you were thinking about doing a cam, it would be a good time to do it.
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Old May 21, 2011 | 06:57 PM
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Originally Posted by abstruse1
Next week I'll be receiving an Edelbrock blower kit for my 2011 Grand Sport (automatic) and will install it in my shop. While I'm "in there," is there anything else I should do?

I'm going to install the upgraded fuel pump.

Lee in Dallas
Headers for sure and a cam if possible because a retune will cost later down the road when you get used to the power.....and you will want more power before you know it.
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Old May 21, 2011 | 07:40 PM
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Originally Posted by abstruse1
Next week I'll be receiving an Edelbrock blower kit for my 2011 Grand Sport (automatic) and will install it in my shop. While I'm "in there," is there anything else I should do?

I'm going to install the upgraded fuel pump.

Lee in Dallas
A 160 degree thermostat is a wise choice for a PD setup. Part #100229 (Summit) for your car.

I run distilled water and Water Wetter only in the supercharger cooling loop. No antifreeze.

You'll want to improve the cold air intake flow. For whatever reason, Edelbrock does not have a cold air intake setup. A combination of the Halltech Beehive and a few slots in the black plastic baffle in front of the radiator makes a big difference. Here are a few photos....

Halltech BeeHive shroud is a near perfect fit. Only requires trimming the circled area to clear the new coolant line


Baffle trimmed to allow more airflow....notice two openings..one at either end


Here is where you trim the baffle. I only cut #1 and #2


Enjoy!

Last edited by Motorhead-47; May 21, 2011 at 07:54 PM.
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Old May 21, 2011 | 07:53 PM
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Drag radials

Last edited by jmoody66; May 21, 2011 at 07:55 PM.
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Old May 22, 2011 | 08:54 AM
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Very helpful ideas, guys. I already have a 160-deg. 'stat and a Halltech CAI that I may be able to modify to fit the Edelbrock.

But as to headers, just how important are they in a FI car?

I'm concerned about the noise. I have a Shelby GT500 that I upgraded the blower (Whipple 2.9) along with lots of other things including Kooks LT headers and high flow cats (665 RWHP). I've had hell finding an exhaust system that breathes okay and isn't too loud or has too much drone. I attribute this mainly to the hi flow cats, but headers may contribute.

I want to keep the 'Vette (a convertible) very user friendly, which for me means not too noisy and certainly drone-less. I've already installed noise/heat insulation in the cabin.

Your thoughts?
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Old May 22, 2011 | 09:01 AM
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Originally Posted by abstruse1
Very helpful ideas, guys. I already have a 160-deg. 'stat and a Halltech CAI that I may be able to modify to fit the Edelbrock.

But as to headers, just how important are they in a FI car?

I'm concerned about the noise. I have a Shelby GT500 that I upgraded the blower (Whipple 2.9) along with lots of other things including Kooks LT headers and high flow cats (665 RWHP). I've had hell finding an exhaust system that breathes okay and isn't too loud or has too much drone. I attribute this mainly to the hi flow cats, but headers may contribute.

I want to keep the 'Vette (a convertible) very user friendly, which for me means not too noisy and certainly drone-less. I've already installed noise/heat insulation in the cabin.

Your thoughts?
One choice that exactly meets your requirements.... "NPP Dual Mode" factory exhaust. No drone, loud when you want it (if you buy the Mild2wild kit) and quiet when you want it to be.

Headers and hi-flow cats will increase the exhaust volume but not significantly. Guys who follow behind me tell me it sounds "viscious" when I bury the pedal. You'll also notice more "mechanical" noise from the thinner header walls when at idle.

I have the Edelbrock with NPP exhaust, Kooks 1 7/8" headers with cats and my requirements are pretty much the same as you mentioned. I wouldn't change a thing in my setup.
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Old May 22, 2011 | 09:15 AM
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The ZR1 cam is becoming a popular low cost upgrade for guys. It's only a $125.00 piece and the ZR1 uses the same valvesprings as the LS3 so no need to swap springs.

Beyond that, the next step would be a smaller pulley, larger injectors and a mod to the fuel delivery system that feeds the rear of both rails vs. the single feed that enters at the back of the driver's side and crosses over to the passenger side at the front. Mod'd motors have shown that the stock fuel delivery is ok for the kit as-is but as you start to mod you can lean out the distant end cylinders.

FAST 65lb injectors + 3.25" pulley



Dual Fuel Rail Feed
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Old May 22, 2011 | 09:42 AM
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Hardened pushrods and better valve spings
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