[mustang1072]

today about my car at a supposed performance shop and he said if i run over 7-9 psi with an inter cooled procharger i would 4sure blow my engine... and i didnt believe him because iv hear on the site that i should be able to run 11psi with no problem... so whose wrong in this situation? me or him? can i run 11 psi with stock internals??

[Onemanzu]

both

[Onemanzu]

yes first post... your engine wont blow up but it will definitely quit on you after a couple of hundred miles ... you can run 4-6 or 7 psi for a couple of thousands of miles....

[mustang1072]

whoa! i cant run 5psi without it hurting me a long time down the road?! i mean i knew it would hurt after like 50,000 or so but 2,000! ?

[02ponypackage]

u can run 7 all day period so your wrong too^

[mustang1072]

ya but can i bump it up at times to 11? like when i go race?

[97TunedMustang]

Well seeing as hows its a supercharger you cant really just turn a knob and make it be 11psi for racing. you have to swap pulleys.. not to mention its really not a good idea to run that much. just stick with 7-8psi with stock internals and be happy otherwise go forged and up the boost

[mustang1072]

damn... ya i know all i gota do is swap the pulley but i could of sworn someone told me i would b fine w 11psi... ok well thanks guys i guess u answered my question lol... its just not what i wanted to hear lol... so 7-9 psi it is...

[itschristorres8]

you can go 11psi on stock internals and last for like 5kmiles i'd say depending how hard you drive it and the tune...these engines are pretty tough.

i would go 7ish to be safe though...but if you have plans on a engine later but soon go with 9 or 11

or get the 4.2L first.
how many miles does your car have?

[97TunedMustang]

Originally Posted by mustang1072 damn... ya i know all i gota do is swap the pulley but i could of sworn someone told me i would b fine w 11psi... ok well thanks guys i guess u answered my question lol... its just not what i wanted to hear lol... so 7-9 psi it is...

yea thats fine. some people will say 11's fine to but its your motor and you never know what it will take to blow it up.

[itschristorres8]

Originally Posted by 97TunedMustang Originally Posted by mustang1072 damn... ya i know all i gota do is swap the pulley but i could of sworn someone told me i would b fine w 11psi... ok well thanks guys i guess u answered my question lol... its just not what i wanted to hear lol... so 7-9 psi it is... yea thats fine. some people will say 11's fine to but its your motor and you never know what it will take to blow it up.

that true..
some cars can take the 11
other will blow at 7

with a safe dyno tune i think you'll be good for a while with 11..

[mustang1072]

sweet... if i hav to i will drive to a dyno... but the closest one is 9 1/2 hours away

[Onemanzu]

theirs something wrong with that... 9.5 hours? where in iowa are you i know their is one here in lincoln and its 13 hours to get to cedar point ohio from lincoln

[Onemanzu]

to be on the safe side i say go with 15 psi that way when you get your new motor... it will be sooner then later

[itschristorres8]

9hours...thats tempting on a 11psi s/c
but if you get the tune from justin you should be good.
idk man i'd ask justin to be 100% on it

[mustang1072]

damn... idk... i live in fort dodge... and the closest one iv even heard of is in Chicago somewhere...

[Onemanzu]

Clicky

their you go three hours

a lil research never hurt anyone

[mustang1072]

i love u

[Onemanzu]

no prob

Induction Motorsports

4350 South 90th. St.
Omaha, NE
Phone: (402) 691-8651
Fax: (402) 571-5698
Email: dyno@inductionmotorsports.com

[mustang1072]

i feel dumb and happy at the same time... lol