10 psi supercharger

[tjof89]

hey i am wonderin what psi the standard supercharges run at an what is the hights psi i can take it upto without having to replace any parts besides the pully.

 

[vsl67]

they run at 6 or 7 psi standard I cant quite remember, 10psi is the highest without mods even though I can reach 13-14psi with the 10psi pulley at W O T

 

[alien]

Comes with a 6 PSI pulley, however some run measureable boost levels of around 9PSI. Most people normally thtow on a 10 PSI pulley on as they dont have to change anything. Much more than that and you should start sthengthening other parts.

 

[taztassio]

you should talk in mm.

96mm is standard i think, you want an 86/87mm pulley.

 

[tjof89]

Can i run a pully of this size without the need to change anything else

 

[alien]

Can i run a pully of this size without the need to change anything else

Sure can. 86mm pulley is 3.4" (or 10PSI like we were saying). 87mm pulley (3.45") will be 9.5PSI roughly. So yes, like above can be done without changing anything else.

 

[chargedvx6]

Can i run a pully of this size without the need to change anything else

A smaller pulley and more boost increases the intake temps so some cooler plugs and running 98oct fuel are a smart idea to keep the engine safe.

 

[taztassio]

87mm wont be '9.5psi'.

boost pressure seen at LIM depends on many things. Stock exhaust with 87mm i saw around 8-10psi, then i got o/d balancer, increased it again (10.5psi), and with exhaust on a cold night it struggles to get to 10.

many people run 17-19 psi pulleys but with their cam only see 13

 

[colgf]

Try , 88mm pulley, colder plugs , 10degree cooler thermostat, extractors, K&N air filter, & a chip upgrade to say XU-6 type , is the minimum mods needed, should give you 10 psi & about 40kw increase in power , you would be nudging 200 KW with these mods....

 

[taztassio]

not 200 at the rears. not more than 160 at the rears. btw the xu6 chip is a waste of monmey, the vy has better programming to cope with the mods. so it will be fine