Help with 427 NA plan for Z06
Thread Starter
Instructor
Joined: Nov 2003
Posts: 214
Likes: 0
From: west hills ca
Help with 427 NA plan for Z06
Goal-max hp & tq but driveable on street. No drag or track racing. Mean sounding. Add F1R SC later.
PLAN-427 Darton block- 15 cc dished pistons-Stage III 72cc heads-10.8 to 1 CR-Comp rocker arms, push rods, springs, etc.-double roller chain-42# injectors(too small?)-FAST manifold-90mm TB-Big cam(probably LG G7)-LG long tube 13/4 headers withx pipe and 3" random cats(17/8 Kooks?)-stock Z06 cat back now, 3"in & 31/2" out later-electric water pump-hi cap fuel pump-Be cool radiator & low temp thermo-Blackwing intake-ASP 25% underdrive pulley(will this hurt timing chain?)-Shogun breather canister- Exedy twin disk clutch-upgraded plugs,wires,etc. If add F1R SC later, use stage III 6.01 heads to lower CR to 9.68 to 1, use 75lb injectors, retune.
Any thoughts, ideas, suggestions? Thanks for any help
PLAN-427 Darton block- 15 cc dished pistons-Stage III 72cc heads-10.8 to 1 CR-Comp rocker arms, push rods, springs, etc.-double roller chain-42# injectors(too small?)-FAST manifold-90mm TB-Big cam(probably LG G7)-LG long tube 13/4 headers withx pipe and 3" random cats(17/8 Kooks?)-stock Z06 cat back now, 3"in & 31/2" out later-electric water pump-hi cap fuel pump-Be cool radiator & low temp thermo-Blackwing intake-ASP 25% underdrive pulley(will this hurt timing chain?)-Shogun breather canister- Exedy twin disk clutch-upgraded plugs,wires,etc. If add F1R SC later, use stage III 6.01 heads to lower CR to 9.68 to 1, use 75lb injectors, retune.
Any thoughts, ideas, suggestions? Thanks for any help
Drifting
Joined: Feb 2003
Posts: 1,453
Likes: 1
From: Iowa City, IA
Re: Help with 427 NA plan for Z06 (monstermouse)
That will be a nice car when you get it done with a 427 and a SC. Have you thought about droping your CR lower yet? If your going to SC it you can go lower so you can make more power with that SC? I would post this on the Forced Induction area and ask them also what they think. I know that if your going to run a 427 with SC I would go with 1 7/8" headers and 3" full exhaust. I would also ask around more if that cam is the best for SCing. Post pictures of your project.
Melting Slicks
Joined: Dec 2000
Posts: 2,118
Likes: 2
Re: Help with 427 NA plan for Z06 (monstermouse)
That's a great selection of parts..... I wouldn't change anything, it should make over 550/550 N/A...if you go to an F1-R, just swap the heads for Stage III 6.0 l heads that are chambered for lower compression, maybe 9.5:1 ... Those are the heads that I'm using and making 800+rwhp. With the 90mm TB and intake, slightly bigger cam and 2 lbs less boost, you should make over 750 rwhp...maybe 800.
Team Owner
Joined: Apr 2001
Posts: 26,794
Likes: 614
From: Elmhurst, IL (West Suburb of Chicago) & Home of MEGA Horsepower
St. Jude Donor '06
Re: Help with 427 NA plan for Z06 (monstermouse)
Sounds like a PERFECT PLAN. Call MTI they will hook you up, ask for JAYSON the owner, I did and i have a big smile on my face everytime i drive my 427 cid C5R MTI Z07 Motor!!! :cheers: :cool:
Melting Slicks
Joined: Aug 2000
Posts: 2,618
Likes: 5
From: Overland Park KS
Re: Help with 427 NA plan for Z06 (monstermouse)
Your plan would be fine for a NA motor. Adding FI would not be ideal on a sleeved block...
Check out this post:
http://forums.corvetteforum.com/zerothread?id=813644
Check out this post:
http://forums.corvetteforum.com/zerothread?id=813644
Burning Brakes
Joined: Oct 2002
Posts: 797
Likes: 1
From: Sunny Earthquake Country, USA On the Left Coast (which is becoming more Right!)
Re: Help with 427 NA plan for Z06 (monstermouse)
Sounds like your research has paid off!:thumbs:
Should be a winner.
What's an LG G7 cam?
Roy
Should be a winner.
What's an LG G7 cam?
Roy
