554 flywheel horsepower is what Edelbrock makes with the kit on an engine dyno. You can use 15% as a general rule of thumb ROM for powertrain loss. You should be in the 475rwhp range with the Edelbrock tune and no other mods. Something is wrong with your install. You are missing 50+ rwhp somewhere. Impossible to diagnose over the internet.

 

415 h.p ?It cannot be.Get it checked by a competant tuner,something is not right.

 

As many have stated already, something is bigtime wrong, my 12' GS w/ headers, x-pipe & tune came in at 409 rwhp, baseline was something like 378ish. If I dropped $9K on an Edelbrock & the results were 415 rwhp I would definitely be taking it to another shop!

 

As you have been correctly told, the warranty is only available if you use the Edelbrock tune and since you have ready had it tuned otherwise a warranty is off the table. Get the Z fuel pump and smaller pulley and find better tuner you will be much happier. I went with the 599 kit and got 510 to the rear tires through the A6 auto and the car is an absolute beast. It has been dead nuts reliable and no problems what so ever. I went road racing a few weekends ago and easily pulled away from several centrifugal blown cars. I mean coming out of the corners when I dropped the hammer they fell back like rocks. It was very entertaining. I was interviewed by a guy from Chevy Hi Perf magazine and he even commented on how hard the car pulled on the back straight always. I was very proud of how the car ran. I was the only guy there that actually drove their car there , ran and then drove it home 4 hours away. Once you get your boost up a little and get it tuned right you will be really surprised and happy with your choice

 

Personally, I wouldn't even buy a blower if it didn't put at least 550 to the wheels thru an automatic. A cam and headers and a fast intake would get you 520 to the wheels. Just my .02.

 

I just did stainless headers, corsa extreme with a honker on my 07 LS 2 and got 390 hp at the wheels on a Mustang dyno.

 

I used the canned tune, B and R Performance did the install, I felt like they did a good job. Talked to one of the head honchos at Edelbrock today and was told that they would allow me to install the 599 kit and have warranty. I had corsa axle backs installed as well.
Thanks for all of the feedback!!!!

 

I would correct the issue on the 550Kit before venturing to the 599Kit, as suggested by Motorhead-47,... realcanuk ...

Here is my dyno chart for reference

(1) the eforce 550HP kit
(2) custom cat back (similar to B&B Bullet catback)
(3) Edelbrock stock tune
(4) 2005 LS2 A4

 

ok, edelbrock thinks it was higher elevation and temp. and humidity, me..I really do not know! thanks for the chart!!

 

OKC isn't that high and dynos correct for that.
Thunder Valley has always seemed like cars run a hair slower than expected.

 

Well...maybe vac or boost leak? I guess I will try this guy in Edmond for upgrade and trouble shooting....He is a certified Edelbrock installer

 

Something is wrong with your Eforce install. Bone stock the Eforce should be good for 450 whp.

Had a TVS 2300 installed and dynoed last night. Car is an 05 auto with LG super pros and corsas. With the stock large pulley and low boost the car made over 500. See below.

 

I think the 1st thing we should find out is

#1-What type of dyno is the shop using on your Vette. If they are using a Mustang dyno the numbers will read ALOT lower than a Dynojet.

We have a dynojet 224XLC and most of the C6s we've installed and tuned with 599HP Eforce's have been pretty close to 500RWHP.

Here is a C6 with a Eforce Stock tune and all we did was do a custom tune on it and it picked up 21RWHP. It was nice and cold that day AND we're at sea level.

http://forums.corvetteforum.com/nort...post1582068674

 

Here are my Dyno sheets with ASE correction for reference done on a Dynapack Chassis Dynamometer. I don't know how they read relative to a Mustang Dyno. Note that 1 7/8" Headers were installed at the same time.

 

Should have done a baseline, have to wait until after first of July to get it checked out! Will upgrade to 599......Until then I will just enjoy the ride with the added hp and corsa's
Thanks for all the feedback

 

I posted my ET slip a while back and since then I have been PM’ed twice with about the same problem as the OP. Lots of disappointment for E-force customers with lackluster performance. A person spends a load of money expects to at least be able to spin the tires. Unfortunately the canned tune will barely let that happen. Trying to accelerate form a dead stop with –5 degrees timing is ridicules but that’s all you get in the canned tune.

Apparently, there are tuners trying to use the canned tune and simply shooting for max HP on the dyno, which is not good enough for an automatic. You need to tune for low rpm torque. The E-force is capable of producing an enormous amount of torque at very low rpm but if you use the canned tune you have to tune for it. Spinning the tires is the fun part, right?

For me the supplied or canned tune was a great place to start but basically it is a stock tune that has just enough “tweak” to let you run a blower very very safely. Just don’t expect too much from it.

I will post my ET slip again, sorry only 1/8-mile, but if you are not running at least close to this just PM me and I will shoot you my tune and you can compare it with yours.

2006 A6 LS2 E-Force 554 HP Kit, totally stock car, stock mufflers and stock 2.56 gear.

 

Ditto! Definitely not right! My LS2 makes 505/508rw on 8psi with only a $3500 MP112 & I'm in Tulsa.. I would expect an LS3 to make at least what I make with only 5-6lbs. Any idea what boost level you're pullied to?

 

If you are talking to me I'm showing just 7.4 lbs @ 6300 rpm but it is the calculated value from the MAP sensor. It's probably high because I am using the stock mufflers.