LS1TECH - Camaro and Firebird Forum Discussion

Forced Induction Superchargers | Turbochargers | Intercoolers

'99 5.3 whp estimate?

Thread Tools
 
Search this Thread
 
Old 04-09-2013, 01:00 PM
  #1  
On The Tree
Thread Starter
 
nastylx's Avatar
 
Join Date: Apr 2013
Posts: 152
Likes: 0
Received 0 Likes on 0 Posts
Default '99 5.3 whp estimate?
99 5.3
Aftermarket: piston rings, rod bolts, rotating assembly bearings
Comp blower cam
Main girdle
oil pump
706's: ported
Dual springs
rr's
valve girdle
Edelbrock pro flo intake:ported
fasst fuel rails
60 or 80# injectors
bg s480 on 20#
th400 rmvb 3600 stall & a brake
carbon driveshaft
8.8 rear with 3.55's, locker, and 31 spline mosier's
275 drag radials

these are my plans im just wondering wat it will be
Last edited by nastylx; 04-10-2013 at 11:46 AM.
nastylx is offline  
Reply Like
Old 04-09-2013, 01:21 PM
  #2  
TECH Enthusiast
 
Twin turbo c5's Avatar
 
Join Date: Oct 2012
Location: Arkansas
Posts: 581
Likes: 0
Received 0 Likes on 0 Posts
Default
It'll make some power . It'll make probably 600 rwhp or better on high boost.That's about the same combo I have in my Fairmont.
Twin turbo c5 is offline  
Reply Like
Old 04-09-2013, 01:23 PM
  #3  
TECH Junkie
iTrader: (5)
 
redtan's Avatar
 
Join Date: May 2008
Location: Belmont, MA
Posts: 3,764
Likes: 0
Received 15 Likes on 14 Posts

Default
You got LS3 heads on a 3.780 bore?
redtan is offline  
Reply Like
Old 04-09-2013, 01:26 PM
  #4  
TECH Enthusiast
iTrader: (21)
 
LT1RAY's Avatar
 
Join Date: Jan 2011
Location: Colorado Springs, CO
Posts: 541
Likes: 0
Received 1 Like on 1 Post
Default
You can't use ls3 heads on a 5.3 unless they are the aftermarket small bore ls3 heads.
LT1RAY is offline  
Reply Like
Old 04-09-2013, 01:41 PM
  #5  
TECH Junkie
iTrader: (5)
 
redtan's Avatar
 
Join Date: May 2008
Location: Belmont, MA
Posts: 3,764
Likes: 0
Received 15 Likes on 14 Posts

Default
You can't use ls3 heads on a 5.3 unless they are the aftermarket small bore ls3 heads.
Even so, I thought that those still require a 4.000 bore minimum.
redtan is offline  
Reply Like
Old 04-09-2013, 02:28 PM
  #6  
On The Tree
Thread Starter
 
nastylx's Avatar
 
Join Date: Apr 2013
Posts: 152
Likes: 0
Received 0 Likes on 0 Posts
Default
Well what heads and oil pump should i go with?
nastylx is offline  
Reply Like
Old 04-09-2013, 02:31 PM
  #7  
On The Tree
Thread Starter
 
nastylx's Avatar
 
Join Date: Apr 2013
Posts: 152
Likes: 0
Received 0 Likes on 0 Posts
Default
Im new to ls so i need some serious info
nastylx is offline  
Reply Like

Trending Topics

Old 04-09-2013, 03:24 PM
  #8  
TECH Fanatic
iTrader: (9)
 
9sectruck's Avatar
 
Join Date: Dec 2008
Location: jefferson city MO
Posts: 1,173
Likes: 0
Received 1 Like on 1 Post

Default
YOU can not use ls3 heads on any thing smaller then 6.0.
what fuel? boost level?
If you are pump gas 317 heads, e85 or something to that octane 241,706,243,
stock oil pump with a heavy spring.
mine just put down 621 on a mustang dyno at 19psi
9sectruck is offline  
Reply Like
Old 04-09-2013, 03:35 PM
  #9  
On The Tree
Thread Starter
 
nastylx's Avatar
 
Join Date: Apr 2013
Posts: 152
Likes: 0
Received 0 Likes on 0 Posts
Default
What is best heads to run with 5.3 on 20psi and meth
nastylx is offline  
Reply Like
Old 04-09-2013, 03:57 PM
  #10  
Teching In
 
ls6-240sx's Avatar
 
Join Date: Jun 2009
Location: Adrian, MI
Posts: 21
Likes: 0
Received 0 Likes on 0 Posts
Default
I have 243's on my 5.3
ls6-240sx is offline  
Reply Like
Old 04-09-2013, 05:33 PM
  #11  
TECH Enthusiast
iTrader: (21)
 
LT1RAY's Avatar
 
Join Date: Jan 2011
Location: Colorado Springs, CO
Posts: 541
Likes: 0
Received 1 Like on 1 Post
Default
Originally Posted by redtan
Even so, I thought that those still require a 4.000 bore minimum.
No they don't.

http://www.mastmotorsports.com/2010/...sembled&id=360
LT1RAY is offline  
Reply Like
Old 04-09-2013, 07:24 PM
  #12  
TECH Junkie
iTrader: (5)
 
redtan's Avatar
 
Join Date: May 2008
Location: Belmont, MA
Posts: 3,764
Likes: 0
Received 15 Likes on 14 Posts

Default
Damn those are sick, all the benefits of the large rectangular ports and better intake with a 2.080 valve that works on smaller bores with small chambers.

Still wouldn't work on his bore though.
redtan is offline  
Reply Like
Old 04-09-2013, 08:17 PM
  #13  
Staging Lane
 
HarshReality's Avatar
 
Join Date: Mar 2013
Posts: 85
Likes: 0
Received 0 Likes on 0 Posts
Default
706's heads with a valve job and back cut the valves. And boost it and keep it moving.


HR
HarshReality is offline  
Reply Like
Old 04-10-2013, 10:19 AM
  #14  
10 Second Club
iTrader: (31)
 
98CamZ28's Avatar
 
Join Date: Nov 2004
Location: NW IN
Posts: 548
Received 14 Likes on 12 Posts

Default
I recently made 550rwhp on 11.5 lbs using a BW S480 on a 5.3 with less stuff than you have. On 20 lbs, i'd imagine you might see 700-750 at the tire
98CamZ28 is offline  
Reply Like
Old 04-10-2013, 11:44 AM
  #15  
On The Tree
Thread Starter
 
nastylx's Avatar
 
Join Date: Apr 2013
Posts: 152
Likes: 0
Received 0 Likes on 0 Posts
Default
Good to hear^
nastylx is offline  
Reply Like
Old 04-10-2013, 11:47 AM
  #16  
TECH Regular
iTrader: (4)
 
chiaj144's Avatar
 
Join Date: Dec 2009
Location: Prescott On Canada
Posts: 483
Likes: 0
Received 1 Like on 1 Post

Default
I made 587rwhp at 12.5psi with a little mpt 70. Cam and valve spring L33. Went 133mph at 9psi.
chiaj144 is offline  
Reply Like
Old 04-10-2013, 11:48 AM
  #17  
On The Tree
Thread Starter
 
nastylx's Avatar
 
Join Date: Apr 2013
Posts: 152
Likes: 0
Received 0 Likes on 0 Posts
Default
My goal is 700rwhp, so to hear that gives me some inspiration
nastylx is offline  
Reply Like
Old 04-10-2013, 11:49 AM
  #18  
On The Tree
Thread Starter
 
nastylx's Avatar
 
Join Date: Apr 2013
Posts: 152
Likes: 0
Received 0 Likes on 0 Posts
Default
An it will be in 89 notch
nastylx is offline  
Reply Like
Old 04-10-2013, 11:51 AM
  #19  
On The Tree
Thread Starter
 
nastylx's Avatar
 
Join Date: Apr 2013
Posts: 152
Likes: 0
Received 0 Likes on 0 Posts
Default
I know hotrodtv did similar build and made 540rwhp on only 8psi, so im hoping with a few more mods and 20# i'll see 700 wen its all said an done
nastylx is offline  
Reply Like
Old 04-10-2013, 12:26 PM
  #20  
On The Tree
Thread Starter
 
nastylx's Avatar
 
Join Date: Apr 2013
Posts: 152
Likes: 0
Received 0 Likes on 0 Posts
Default
Should i get 120# injectors?
nastylx is offline  
Reply Like



Advanced Search
Quick Reply: '99 5.3 whp estimate?


Reply Closed Thread Share

All times are GMT -5. The time now is 10:42 PM.