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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-

how much boost?

  • Thread starter Thread starter DesertFox331
  • Start date Start date Jul 8, 2011
D

DesertFox331

New Member
Jul 8, 2011
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0
Jul 8, 2011
#1
  • Jul 8, 2011
  • #1
ok so my question is how much boost to run with my set up. have a stock block studded top and bottom with arp studs and a main girdle. scat 331 stroker kit, 4340 forged crank, forged H-beam rods. probe srs pistons 9.0:1 cr. entire rotating assembly balanced. trick flow top end kit with street intake and stage 1 cam (probably goin to change cam and intake and have heads ported).and i plan on a supercharger later so my question is how much boost should i run with this set up in a stock block. this is going to be a dd as well. and yes i am goin to have it dyno tuned. if i left anything out im sorry just ask and ill post it. thanks in advance.
 

Kdubslugga

Active Member
Jun 7, 2003
1,515
3
38
Akron, OH
Jul 8, 2011
#2
  • Jul 8, 2011
  • #2
Its going to depend on you fuel setup. Im running 12-13 psi with stock lines and rails and I can only rev to 5500 before I run lean. Once you start looking at around 15+psi your gonna run into 93 octane not being enough, so if pump gas is your goal I wouldnt go to much higher than 14-15. Remember your block is beefed up, like mine is, but it's still a stock block.
 
D

DesertFox331

New Member
Jul 8, 2011
2
0
0
Jul 8, 2011
#3
  • Jul 8, 2011
  • #3
thanks and yea i know im still limited by the stock block. but really i planed on only runnin 8-10psi max. and probably wind up doin the complete fuel system rails lines everything.
 

FastDriver

I was uncomfortably high & wearing a helmet
SN Certified Technician
Sep 5, 2001
6,057
2,663
224
Vass, NC
Jul 8, 2011
#4
  • Jul 8, 2011
  • #4
keep the power under 500rwhp (450 if you want to be conservative), keep the boost under 15 psi, keep the AFR at WOT at 11.5:1 and dial your timing in conservatively starting at 16* and working up from there on degree at a time, but when you reach peak power and it starts to drop off, back it off 2* to keep it safe
 

blackened88lx

Active Member
Aug 9, 2006
0
4
28
Connecticut
Jul 8, 2011
#5
  • Jul 8, 2011
  • #5
Exactly what fast driver said. Start with as little boost as possible and use timing to make the power.
 

S&B

I hate my CT. :(
10 Year Member
Dec 18, 2005
1,634
695
204
Cheesehead
Jul 8, 2011
#6
  • Jul 8, 2011
  • #6
my sb let go just under 500, once your in that range your on borrowed time, could last 10 years could last 10 seconds.

thats when I baught the dart SB which is for sale now, but that put all these worries to end
 
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