Supercharging a PI headswapped stang....input needed

MyEarsHurt

New Member

May 21, 2004

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Aug 26, 2005

#1

• Aug 26, 2005

• #1

Okay, so I have always read its a no-no, don't do it, compression ratio is too high to do it. Well, I thought I was okay with this, but I guess I am not. I was looking around on procharger's website and I found this chart.

View attachment 505782

According to that chart, someone who has a PI swapped car (assuming they are running between 10-10.5 compression ratio, could still manage to run like at least 6 lbs of boost if it was intercooled. Am I reading this right? or no? If so, why arent more people with PI swaps running S/C? Input is appreciated as always....

 

blackink00

I missed a shift & stole Curt's money.

Mar 30, 2005

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Tempe, AZ

Aug 27, 2005

#2

• Aug 27, 2005

• #2

i would say go for it. 6lbs looks safe. i think they all say no because they alll like KB but im more for procharger.

 

W

WOT

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Nov 26, 2000

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Aug 27, 2005

#3

• Aug 27, 2005

• #3

Just drop in 22cc psitons.

 

MyEarsHurt

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May 21, 2004

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Aug 27, 2005

#4

• Aug 27, 2005

• #4

Well, my idea here is to do this with the stock bottom end for at least a year or so cause I dont have the loot for pistons and rods right now, otherwise I would go that route...

 

W

WOT

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Aug 27, 2005

#5

• Aug 27, 2005

• #5

Just run it with low boost. Keep it below 6-8 psi. Then when the time comes drop in frorged RA and pulley down.

 

tomustang

Psychotic Member

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Jun 8, 2000

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Aug 27, 2005

#6

• Aug 27, 2005

• #6

have it tuned to run low 6's.

 

mrvax

Stay thirsty my friends

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Nov 29, 1999

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SN Moderator: Orlando, Fl.

Aug 27, 2005

#7

• Aug 27, 2005

• #7

I have heard of people blowing the PI swapped motor with 6-8lbs. My recomendation is to NOT do it unless you have the $ in the bank for an immediate rebuild. Consider using nitrous, that works well with compression.

Another alternative is to have the heads removed again and the swirl dams cut out. That should bring you to about 9.5:1.

 

tomustang

Psychotic Member

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Jun 8, 2000

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McLean Hospital

Aug 27, 2005

#8

• Aug 27, 2005

• #8

mrvax said:

Another alternative is to have the heads removed again and the swirl dams cut out. That should bring you to about 9.5:1.

Click to expand...

Also replacing the gaskets with cometic ones

 

MyEarsHurt

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May 21, 2004

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Aug 27, 2005

#9

• Aug 27, 2005

• #9

I have nitrous already...thought about removing the swirl dams, but I really dont want to take the whole thing apart again....not right away at least.