Z28 Guy Looking For Help!! - Ford Mustang Forum
 
LinkBack Thread Tools
post #1 of 10 (permalink) Old 02-20-2006 Thread Starter
 
WANARUNM's Avatar
 
Joined: Feb 2006
Posts: 3
 
Z28 Guy Looking For Help!!

Alright guys I'll go ahead and put it out there that I am a Ls1 owner. Moving right along, my brother has a 99 Gt 5 sp. and Im tryin to head him in the right direction with his rebuild. I had my Z rebuilt/upgraded but I'm not at all familiar with the GT motor. Is that block aluminum, internals arent forged are they, specs on the cams? I would think that cams and head porting would be a good start but I dont know what kinda money thats involved and if that would put him around 320-330 rwhp?? From what I have found out it'll take more money to get 50 - 60 rwhp than I needed for my ride. I'd like to see him outrun me in the 1/4 but is that likely without spending more than $4500? any help would be appreciated- thanks. By the way those 03 cobras are pretty bad ass!!!!!!!

WANARUNM is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Old 02-21-2006
SHELBY GT 350 Member
 
BlueStreak03's Avatar
 
Joined: Nov 2002
Location: Trinity
Posts: 5,905
 
Send a message via AIM to BlueStreak03 Send a message via Yahoo to BlueStreak03
I can tell you the internals are not forged. Might as well have forged internals put in while it's torn down, just in case he wants to boost it later. VT makes some kickass cams (Stage II's), so does Crane (XE262H or XE270H) and some minor headwork would get some pretty good power down. Also he's going to have to modify the intake and exhaust to really put all that to work. A custom tune would do some good also.


"Posterity! You will never know how much it cost the present Generation to preserve your Freedom! I hope you will make good use of it. If you do not, I shall repent in Heaven, that I ever took half the Pains to preserve it."

John Adams
BlueStreak03 is offline  
post #3 of 10 (permalink) Old 02-21-2006
PONY Member
4.6L Member
 
xxkazp3rxx's Avatar
 
Joined: Jul 2005
Location: Tampa
Posts: 626
 
Send a message via AIM to xxkazp3rxx
Don't forget gears!

2014 Shelby GT500
xxkazp3rxx is offline  
 
post #4 of 10 (permalink) Old 02-21-2006
PONY Member
4.6L Member
 
Storkdork's Avatar
 
Joined: Jul 2005
Location: Youngstown
Posts: 437
 
check the 4.6 TECH thread titled "engine build (for those who want to learn)I guess this guy has some "inside" info on the 4.6
Storkdork is offline  
post #5 of 10 (permalink) Old 02-21-2006 Thread Starter
 
WANARUNM's Avatar
 
Joined: Feb 2006
Posts: 3
 
Hes got the gears and BBK throtle body, cold air intake, catback, cats removed, not sure what headers. The stage two cam, what kind of improvement over stocj is that- will it require tuning or just suggest it? Does this motor have one cam per head right?
WANARUNM is offline  
post #6 of 10 (permalink) Old 02-21-2006
PONY Member
4.6L Member
S197 Member
 
engineer76's Avatar
 
Joined: Feb 2005
Location: Zurich
Posts: 701
 
Quote:
Originally Posted by WANARUNM
Alright guys I'll go ahead and put it out there that I am a Ls1 owner. Moving right along, my brother has a 99 Gt 5 sp. and Im tryin to head him in the right direction with his rebuild. I had my Z rebuilt/upgraded but I'm not at all familiar with the GT motor. Is that block aluminum, internals arent forged are they, specs on the cams? I would think that cams and head porting would be a good start but I dont know what kinda money thats involved and if that would put him around 320-330 rwhp?? From what I have found out it'll take more money to get 50 - 60 rwhp than I needed for my ride. I'd like to see him outrun me in the 1/4 but is that likely without spending more than $4500? any help would be appreciated- thanks. By the way those 03 cobras are pretty bad ass!!!!!!!
WANARUNM,

If you want to end up at 320 - 330 RWHP, your best choice would be to get a used centrifugal supercharger kit, a Boost A Pump and a custom tune.
Total cost should end up somewhere around $2000 - $3500 and RWHP depending on gas and intercooling 350HP+

If 320 - 330 RWHP is your goal, I wouldn't even bother about N/A modifications.

2006 Ford Mustang GT (daily driver)
other cars
engineer76 is offline  
post #7 of 10 (permalink) Old 02-21-2006 Thread Starter
 
WANARUNM's Avatar
 
Joined: Feb 2006
Posts: 3
 
Quote:
Originally Posted by engineer76
WANARUNM,

If you want to end up at 320 - 330 RWHP, your best choice would be to get a used centrifugal supercharger kit, a Boost A Pump and a custom tune.
Total cost should end up somewhere around $2000 - $3500 and RWHP depending on gas and intercooling 350HP+

If 320 - 330 RWHP is your goal, I wouldn't even bother about N/A modifications.
I should have mentioned the reason for going into the motor was that he has a hard knocking in the bottom of the motor, so while it was torn down try to build it back with the good stuff.- Is it likely to get decent #'s with head porting alone or with cams on this car. we will do the forged internals since he does want to add FI later.
WANARUNM is offline  
post #8 of 10 (permalink) Old 02-21-2006
PONY Member
4.6L Member
S197 Member
 
engineer76's Avatar
 
Joined: Feb 2005
Location: Zurich
Posts: 701
 
There's been some people who got decent numbers as N/A.

Key components are:
- Hot cams
- Ported heads
- Headers, exhaust
- Intake
- Depends on the gas you want to run, up the CR to 10 or 10.5:1
YOU WILL NEED A GOOD CUSTOM TUNE

When you build that motor, think about the rpm range. If you have a set of hot cams you also want to have internals being able to handle the RPM's. I would consider Cobra crank & rods.

2006 Ford Mustang GT (daily driver)
other cars
engineer76 is offline  
post #9 of 10 (permalink) Old 02-21-2006
SHELBY GT 350 Member
 
BlueStreak03's Avatar
 
Joined: Nov 2002
Location: Trinity
Posts: 5,905
 
Send a message via AIM to BlueStreak03 Send a message via Yahoo to BlueStreak03
Do you know what manufacturer the Stage II cams are from? If they're VT he's right on the money. Since he's got the throttle body, exhaust, CAI covered, I'd just freshen up the motor with a bore & hone, bearings and port out the heads just a bit and build a forged bottom end. With all that done and a good tune he should be damn near the goal he wants. If not, throw a blower on there with 4-6psi of boost and he's past that goal. I'm pushing 9psi on a completely stock motor and making 411 to the ground. 6psi with VT stage II's should be GOLDEN.

"Posterity! You will never know how much it cost the present Generation to preserve your Freedom! I hope you will make good use of it. If you do not, I shall repent in Heaven, that I ever took half the Pains to preserve it."

John Adams
BlueStreak03 is offline  
Banned
4.6L Member
 
markwondi's Avatar
 
Joined: Mar 2003
Posts: 2,873
 
Send a message via AIM to markwondi
If he plans on running a blower/turbo in the future and actually will, keep the compression around stock (9.5:1) That will keep the N/A #'s where you want them, and allow the ability to run a blower in the future.

You're looking at ~3k for a shortblock with forged internals, less if you can do the work yourself. If you need the tolerances/clearances on the mod motors, PM me, i will give them to you.

VT cams are nice, i'm more of a comp cam guy, but either set will do nicely.
markwondi is offline  
Sponsored Links
Advertisement
 
Closed Thread

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Mustang Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a VALID email address for yourself, otherwise you will not receive the necessary confirmation email needed to confirm, validate and activate your new AFM member account.

Failure to provide a VALID email address, will result in the cancellation of your new AFM member account registration.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
94 Z28 vs 96 Talon TSI gt_stang2004 Kill Stories 9 10-14-2005 02:10 PM
05 V6 vs. 89 5.0 & 91 Z28 rgensemer Kill Stories 42 09-11-2005 11:52 AM
Smoked a z28 this morn.. Nazz Kill Stories 27 09-09-2004 07:58 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome
 


Search Engine Friendly URLs by vBSEO 3.6.1