England Green 440 Results
 

Well I got my 2004 Z06 back from England Green (Gulf Coast Performance) and I am very happy with the results.

The specs are as follows:

Ls7 Block
Callies Compstar 4.1 Crank
Callies 6.125 Rods
Wiesco Pistons
ARP hardware
TFS 235 Heads
10% Underdrive Pulley
Melling Oil Pump
CTSV Lifters
Yella Terra Rockers
LS2 Pan
EG Chaos Cam
LG 1 3/4 Headers
Ti Exhaust
Catch Can
60 lbs Injectors
Boost-A-Pump
Racetronics Hotwire

The car cranked out 546rwhp and 517 rwtq SAE corrected on a very hot day.

The car is deceptively fast and not all too loud at idle. I know I am sacrificing about 30 rwhp because of the Tis, and maybe some more because of the 13/4 headers, but I think I’m going to leave it the way it is for now.

Took it to the dragstrip and ran an 11.8 at 127.31 with a 2.016 60 ft. Given that I only am on 555rIIs, I had to back out of second during that pass. My other 3 passes were abortions, since I could not get the car to hook and the Textralia was locking me out of 4th.

(I ran an 11.9 at 121 with 434/402 rwhp/rwtq on the same tires, which also gave me traction problems back then).

Thank you Jason and Stephen for all your hard work on this build and customer support!!!!!!!


(Jason or Stephen, please post up some pix/dyno sheet)

Congrats. It's good to hear you have it back and are enjoying it.

I hate to be that guy but I would be very disappointed with those results from a 440CI motor with a premium set of heads. I've seen multiple 416ci motors with those heads make 550+ with high 240's to low 250's duration comp cams. Not sure what that silly "chaos" cam is but those numbers aren't that impressive especially from a 440 TFS headed car.

I somewhat agree....I would think it would produce more power, but those street headers are holding some power back. I seriously doubt that the Ti exhaust is costing you 30rwhp. The Ti flows very well so I would look for the power loss somewhere else.

I bet its a great car nonetheless :thumbs: Jason is a great guy :cheers::cheers:

Dang guys...do we know they tried to make as much rwhp as possible ?

Some people...(like me) ask for a cam for the street because 98% of the time...that is where my driving takes place. I optioned out of a 2nd cam recommened because I didn't want too radical. It cost me some horse power and torque but that is what I ask for. Still running mid 10's with a street cam. Good enough for me. Now if I ran a 10.1, I wouldn't be typing this...I would be changing my cam...lol. :lol::lol:

I have a 383 with 480 rwhp...and I hear the same thing. What happened.... "Tony Mammo got over 525 rwhp from his"....??

Pitt

Hey Pitt,

I wasnt trying to be negative. It is a good build, but the point I was trying to make is that hte Ti's flow pretty good so I wouldnt change them for the added power, only change them if your wanting a different sound :thumbs:

yeah..I agree Chris....but sometimes I wonder about them. One person will say they dyno'd 15-20 better hp without them..then when mine was tested it made 1 hp less with open headers. Are the dyno's actually that accurate ? Heck..I don't know. I just leave mine on now...hope it isn't killing my quarter mile any.

Sorry Fallon, didn't mean to hijack the thread but the TI's are related to your setup. And by the way...that trap speed is good for at least a 10.8 so keep at it Bro !! Work on that sixty foot.
Pitt

What does something like that cost?

Hm thats interesting info pitt...:thumbs:

I agree though, his trap speed tells the truth :D

Are you sure. I thought they did on big cube motors. Let me do some checking, but I think they do.

OK the thread below shows no exhaust vs. Ti

http://forums.corvetteforum.com/c5-g...r-600rwhp.html

Thanks!

Was that with the cats still on the car ? What about straight thru TI's and no Cats ?

Pitt

The numbers I gave are w/out cats. Thereafter, we bolted up high flow cats for street use since I do not want to deal with the smell. (So arguably my street nos. are lower).

well...you have the proof on yours..no doubt. Nice numbers & setup !

Pitt

Sorry bro but I have to agree with Blu. I would be seriously upset with those numbers. You spent the money on the best parts and have a combo that should go 600/550rw. Now if the cam is in the 230 range then I wouldn't be that upset. The 1 3/4" LG's and the stock Ti are the biggest culprits. Just as a comparison, my 416 with the same heads, but 1 7/8" kooks through the full cat back made 573/530rw with a 247/254 cam. The tq us what seems way off to me. Does the motor have under 10:1 compression? What intake are you running?

Ti's vs open cutouts made 12RWHP (DynoJet 248) difference on my car (403CI). I imagine the difference would be less comparing the Ti's to another straight through cat-back like GHL's.

OK numbers but not stellar based on the heads and CI.

Wow!:eek:

Just my point in my first response Pray, we don't know what is in it.
And I agree, if it is all it can be... then yes the numbers might be low.

Pitt

Compression is 11.8:1 SCR. I have no idea about DCR.

I don't really know the cam specs, but it is much bigger than 230.

The intake manifold is the fast 92 through a 90 mm tb.

I am using a vararam intake.

Well.....on the positive side..you are still driving a ten second car. You spent all that money..Get some tires & Get some traction !

I wish I had your rwhp now, while good air is here !

Pitt