Questions 5.3 w/ MS3 Cam - LS1TECH - Camaro and Firebird Forum Discussion



Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Questions 5.3 w/ MS3 Cam

Reply
 
Thread Tools Search this Thread
Old 05-21-2008, 12:30 PM   #1
Teching In
Thread Starter
 
Join Date: Mar 2008
Posts: 22
Default Questions 5.3 w/ MS3 Cam

bought the 5.3 have it sitting next to me on the stand... now i have the victor jr. carb set-up from edelbrock, and 1 7/8 headers, now... am i going to be able to spin this engine high enough to get all the power out of the MS3 i want? i'm thinking im going to need to be able to go to 7200 maybe 7400

5.3 is rated like 285-295fwhp, im looking for like 380-430fwhp... if you think it'll be more I really like more haha

car is a manual, 3.73 gear, ~3300lbs

heads are already prepped for the cam with bigger springs thick wall pushrods, even bought the checker thingy-mah-do to make sure i have perfect geometry haha

the 5.3 is stock internals, will be daily driven, but not dd to 7 grand, you know...

trying to think what else to tell you guys...

oh yeah, so should i go to ls7 lifters, make sure i dont collapse one, or do you think the stock ones will hold, i really dont think they will???
bradenb19 is offline   Reply With Quote
Old 05-22-2008, 12:07 AM   #2
TECH Enthusiast
iTrader: (3)
 
mchdg86's Avatar
 
Join Date: Dec 2004
Location: Tulsa OK
Posts: 514
Default

You are going to have to turn some very high RPMs with the MS3 and a lil 5.3 motor. Most people spin to about 7000~7200 with the 5.7 motor. You will probly have to spin it to 7400~7600 RPMs and the stock bottom probly won't hold up that high. I would also stick with 1-5/8 primary headeers to. Most people don't go with the 1-7/8 unless they are huffing a lot of N2O or a lot of boost on the 5.7s.
mchdg86 is offline   Reply With Quote
Old 05-22-2008, 07:55 AM   #3
Teching In
Thread Starter
 
Join Date: Mar 2008
Posts: 22
Default

does the bottom hold 7000 - i was also looking at the F13?

good point with the headers... what about lifters? do the stockers hold 7000, or should i upgrade?
bradenb19 is offline   Reply With Quote
Old 05-22-2008, 08:04 AM   #4
TECH Addict
iTrader: (17)
 
CALL911's Avatar
 
Join Date: Feb 2006
Location: IN
Posts: 2,842
Default

I would reccomend 1 3/4 headers for the best N/A performance out of that combo.

As for the lifters, LS1, LS2, and LS7 lifters are actually all the same. If your factory lifters have a lot of mileage on them, then I would change them, but otherwise you will just be ordering the same part you already have.

If you want more power, and aren't afraid of flycutting the pistons, the MS4 will give you more.
CALL911 is offline   Reply With Quote
Old 05-22-2008, 11:30 AM   #5
On The Tree
iTrader: (4)
 
Join Date: Aug 2006
Location: Central Iowa
Posts: 191
Default

Call a reputable vendor and have them recommend a cam that's sized properly for the engine. Of the three mentioned so far, the F13 is the best choice; both the MS3 and MS4 are "too big" for your engine.
itslow is offline   Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
So many questions... LM4 build Rx7TyreBurna Generation III Internal Engine 0 05-22-2016 07:39 PM
Build LQ4 or buy a built 5.3 for 750 fwhp? real82it Forced Induction 2 04-24-2016 11:04 PM
Help me build an Aluminum 402! LSx '85 C10 Generation IV Internal Engine 8 06-07-2014 06:25 PM
Opinion on "refresh" of a stock 5.3 flynbludream Forced Induction 7 12-22-2012 03:46 PM
Using 2 stock GN turbos... vortec_7 Forced Induction 12 10-03-2005 10:27 PM


Tags
53, cam, carb, ms3

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off



All times are GMT -5. The time now is 09:48 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: