The best way to get 500+rwhp N/A from a LS1 or LS2? - Pontiac GTO Forum
User Tag List

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 30 (permalink) Old 03-02-2011, 03:06 AM Thread Starter
 
IcemanGTO's Avatar
 
Join Date: Mar 2011
Posts: 133
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The best way to get 500+rwhp N/A from a LS1 or LS2?

I am purchasing a 04-06 GTO this year and I would like to know
from the knowledgable people here what is the best or easy way
to get 500+ rwhp from a LS1 or LS2 engine N/A? Is a head/cam/
intake combo a must to achieve this goal? If so,what head/cam/
intake combo do you subjest? Links? Also what mods are the most
affective N/A on the LS1 and LS2 engines?
I'm looking to give my friends 08 Roush 427R a run at the track
that he will not forget once I get my GTO.
Thanks guys in advance!
IcemanGTO is offline  
Sponsored Links
Advertisement
 
post #2 of 30 (permalink) Old 03-02-2011, 05:39 AM
 
dustyminpin's Avatar
 
Join Date: Jun 2006
Location: Daphne, Alabama
Posts: 1,451
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You won't get 500 rwhp with H/C/I. Been there done that. I'm sitting on 481 and have every possible all motor/stock cube mod you can think of. You need a blower with standard bolt ons, or a turbo I guess, but I know nothing of turbos... By the way, 427R Mustangs suck. There's one that parades around town her in Daphne. They aren't much more then a Standard Rustang with a body kit in my book. Kind of sorry they have a blower and only make 427 crankshaft hp.
dustyminpin is offline  
post #3 of 30 (permalink) Old 03-02-2011, 08:58 AM
 
Join Date: Jun 2009
Posts: 2,777
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You need to add displacement, either with a stroker crank, or an aftermarket stroked short/long block.
Poncho Dan is offline  
post #4 of 30 (permalink) Old 03-02-2011, 09:14 AM
 
SirMarco's Avatar
 
Join Date: Nov 2009
Location: Elgin, IL(East Side)
Posts: 37
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You can hit 500 N/A on a LS1. I have seen it in person. That motor is actually being parted out now and a new fresh setup is getting done.
You just need all the right parts, a donky **** size cam and the right tuner. The car I speak of had AFR heads on it also.

It's not cheap by any means but very possible.

2004 TR
Cam Only LS1
Tuned By Fast Motorsports
2005 HD V-Rod Nice Weather DD
SirMarco is offline  
post #5 of 30 (permalink) Old 03-02-2011, 06:59 PM
 
GM4life's Avatar
 
Join Date: Mar 2007
Location: RAF Lakenheath, UK
Posts: 4,162
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I'm not saying it can or can't be done. It's not going to be a streetable car I can say that for shure. You are going to need a cam that too big for the stock pistons and high dollar heads. An LS2 would be the best platform to start of with.

You are better off starting off with bolt ons first and work your way up. If your into nitrous do it, FI is also an option.
GM4life is offline  
post #6 of 30 (permalink) Old 03-02-2011, 10:13 PM Thread Starter
 
IcemanGTO's Avatar
 
Join Date: Mar 2011
Posts: 133
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I really appreicate your insight guys I forgot to mention that I will
be using the stock pistons/displacement and I need it to be streetable though.I like the Trickflow heads and cams.I'm not sure what brand
heads and cams to go with? Also I don't know what intake will flow the
best either? links? I'm researching and trying to see what works best.
Longtubes will be a must probably and I would like to stay N/A
but,it's going to be tough! What bigger cam do you guys recommend that
is streetable?
What's worse about this guy with the 08 Roush 427R is his huge ego and
the fact that he thinks his 08 Roush 427R is the fastest vehicle in the
world.I really want to beat this guy at the track and know the combo to do it with.
IcemanGTO is offline  
post #7 of 30 (permalink) Old 03-02-2011, 11:02 PM
Administrator
 
05GTO's Avatar
 
Join Date: Oct 2004
Location: Deliverance, GA
Posts: 5,003
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Go with a 402 (4.000" stroke/6.3L) or a 421 (4.125" stroke/6.8L) stroker kit with flat top pistons. With the right heads, cam and intake you'll easily exceed 500 rwhp with the 421.

Better start saving for drive train upgrades as well.

Randy


05GTO is offline  
post #8 of 30 (permalink) Old 03-03-2011, 12:36 AM Thread Starter
 
IcemanGTO's Avatar
 
Join Date: Mar 2011
Posts: 133
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by 05GTO View Post
Go with a 402 (4.000" stroke/6.3L) or a 421 (4.125" stroke/6.8L) stroker kit with flat top pistons. With the right heads, cam and intake you'll easily exceed 500 rwhp with the 421.

Better start saving for drive train upgrades as well.
Thanks do you have any links to stroker kits you would recommend?
What heads,cam and intake should I be looking into purchasing?
Links please?
IcemanGTO is offline  
post #9 of 30 (permalink) Old 03-03-2011, 07:52 AM
 
Join Date: Jun 2009
Posts: 2,777
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by IcemanGTO View Post
I really appreicate your insight guys I forgot to mention that I will
be using the stock pistons/displacement and I need it to be streetable though.I like the Trickflow heads and cams.I'm not sure what brand
heads and cams to go with? Also I don't know what intake will flow the
best either? links? I'm researching and trying to see what works best.
Longtubes will be a must probably and I would like to stay N/A
but,it's going to be tough! What bigger cam do you guys recommend that
is streetable?
What's worse about this guy with the 08 Roush 427R is his huge ego and
the fact that he thinks his 08 Roush 427R is the fastest vehicle in the
world.I really want to beat this guy at the track and know the combo to do it with.
With only 427 crank hp, you can probably beat on him with my humble mods and a good hook.
Poncho Dan is offline  
post #10 of 30 (permalink) Old 03-03-2011, 09:53 PM
 
ROBSGTO's Avatar
 
Join Date: Jul 2008
Posts: 670
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by 05GTO View Post
Go with a 402 (4.000" stroke/6.3L) or a 421 (4.125" stroke/6.8L) stroker kit with flat top pistons. With the right heads, cam and intake you'll easily exceed 500 rwhp with the 421.

Better start saving for drive train upgrades as well.
What's the cost associated with stroking a motor?

Performance:230/232 .614 .602 114 cam,Kooks 1 3/4 headers/catted mids,Spintech,CSP ported intake/tb,UDP,tune by CSP.

Suspension:Pedders big bore shocks,GSR II struts,Lovells RR bushings,Kings 0 drop rears/20mm drop fronts.
ROBSGTO is offline  
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 2004-2006 GTO > Engine Discussions
Gear in this thread - Powered by O'Reilly Auto Parts

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Pontiac GTO 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.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
LS2 and LS1 Conspiracy767 2004-2006 GTO General Discussion 7 07-18-2010 09:27 PM
LS1 vs LS2 KPatterson Engine Discussions 13 01-24-2009 09:27 AM
500 Rwhp All Motor GoatBoy4056 2004-2006 GTO General Discussion 1 01-20-2007 09:35 PM
389 LQ9 (potental 500+rwhp) kpforce1 2004-2006 GTO Parts for Sale (Price & Pictures Required) 2 12-04-2005 03:24 PM
Can $10K get you 450-500 N/A rwhp? 6QTS11OZ Service, Maintenance and Technical Discussion 18 11-21-2005 02:24 PM

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 On
Pingbacks are On
Refbacks are On

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