How much boost can a 5.3 handle?

Reply Subscribe

Thread Tools

Search this Thread

12-20-2009, 01:26 AM

#11

TXsilverado

Moderator

iTrader: (19)

Join Date: Jan 2005

Location: Humble Texas

Posts: 18,315

Likes: 30

Received 222 Likes on 148 Posts

how far did parish push the 5.3 fairmont? he hit 20psi on a stock 5.3 didnt he?

Reply Like

12-20-2009, 06:47 AM

#12

ryan_prettyman

Banned

Thread Starter

iTrader: (2)

Join Date: Oct 2006

Posts: 445

Likes: 0

Received 0 Likes on 0 Posts

I don't know how rich it is because I think the LC1 is not accurate!

Reply Like

12-20-2009, 06:54 AM

#13

terravast4

TECH Junkie

iTrader: (25)

Join Date: Jul 2007

Location: Austin, TX

Posts: 3,099

Likes: 6

Received 303 Likes on 220 Posts

Quote:

Originally Posted by SLO TRUCK

how rich you talkin?

10.2 a/f at full boost. It works for now but gonna run some meth as soon as I can afford it.

Reply Like

12-20-2009, 12:12 PM

#14

CAPO

Staging Lane

Join Date: May 2009

Location: kuwait

Posts: 69

Likes: 0

Received 0 Likes on 0 Posts

if aluminum it will hande 20 psi max , other wise go to iron block

20 psi with nice setup , but stock it depends on how you drive the car i have almost 11 psi and its ok ,

Reply Like

12-20-2009, 09:30 PM

#15

speedaddict

On The Tree

iTrader: (1)

Join Date: May 2005

Location: Austin, TX

Posts: 140

Likes: 0

Received 0 Likes on 0 Posts

Quote:

Originally Posted by terravast4

10.2 a/f at full boost. It works for now but gonna run some meth as soon as I can afford it.

that's pretty rich...I'd be concerned about cylinder wash...

Reply Like

12-20-2009, 09:39 PM

#16

LsxCody

TECH Fanatic

iTrader: (3)

Join Date: Oct 2008

Location: Virginia!!!!

Posts: 1,686

Likes: 0

Received 1 Like on 1 Post

better to be rich than lean lol, thats alil rich but not harmful i dont think

Reply Like

12-20-2009, 09:57 PM

#17

dirt track racer 81

TECH Senior Member

iTrader: (45)

Join Date: Jun 2005

Location: Hennessey, Oklahoma

Posts: 9,439

Likes: 0

Received 11 Likes on 5 Posts

10.2 is damn rich and your leavin quite a bit of power left on your plate. as rich as i would go is 11.3 or so..

Reply Like

12-20-2009, 11:14 PM

#18

terravast4

TECH Junkie

iTrader: (25)

Join Date: Jul 2007

Location: Austin, TX

Posts: 3,099

Likes: 6

Received 303 Likes on 220 Posts

Yeah, I realise that. i am gonna get a re-tune by wheatley soon. I wasn't thrilled with the tune i got and I do think it is down on power because it is so rich but it will have to do for now.

Reply Like