How much boost can a 5.3 handle?

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Dec 20, 2009 | 01:26 AM

#11

TXsilverado

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From: Humble Texas

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

Dec 20, 2009 | 06:47 AM

#12

ryan_prettyman

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

Dec 20, 2009 | 06:54 AM

#13

terravast4

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From: Austin, TX

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.

Dec 20, 2009 | 12:12 PM

#14

CAPO

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From: kuwait

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 ,

Dec 20, 2009 | 09:30 PM

#15

speedaddict

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From: Austin, TX

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...

Dec 20, 2009 | 09:39 PM

#16

LsxCody

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From: Virginia!!!!

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

Dec 20, 2009 | 09:57 PM

#17

dirt track racer 81

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From: Hennessey, Oklahoma

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..

Dec 20, 2009 | 11:14 PM

#18

terravast4

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From: Austin, TX

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.

Dec 20, 2009 | 11:30 PM

#19

charcold-bowtie

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From: Midland Texas

whatch the timing as well. More boost, usually uses a bit less of timing.

Dec 21, 2009 | 12:58 AM

#20

CAPO

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From: kuwait

Quote:

Originally Posted by dirt track racer 81

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..

i gree 11.2 is mine , but 10.3 is bad , i know it safe nothing will happen but loosing power , this is bad

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