5.5 vs. 6 psi?!!!

[solow1605]

Well, its time for me to upgrade the boost. I can't decide between 5.5 psi and 6. Someone with 6 told me that half a psi isn't going to make a difference but there's just something abotu the difference between those two numbers that makes me uneasy. Is there going to be much difference between the two in terms of reliability and horsepower? Anyways, if someone has 6 can you give me the belt size too?

[Hsakuragi]

just go 5.5, 6 can blown ur KS easily.

[DatSRBoi]

Go 5.5. Dont get greedy and hit 6. Average 5who increase isnt worth the trouble it causes.

[siennasc98]

Go 5.5. Dont get greedy and hit 6. Average 5who increase isnt worth the trouble it causes.

I installed the TRD (for 02/03 Tacoma - PTR01-35020-05) boost gauge on my van.
Though I have the 2.9"- 5.5psi pulley, I'm surpise to see that the boost is reaching the 6psi mark on the gauge especially when climbing steep hills.

So, just go with the safer 5.5 psi. Replacing the knock sensors is a pain and costly.

[Fletch]

You may be thinking that going from 4 - 5.5 psi is not a big increase in boost, but you can really feel more power, torque and full boost earlier in the RPM. From a seat of your pants dyno, no question.

[CASTRO]

hmmm so if 5.5 is a 2.9inch pully... then 3.0inch is 5psi exactly right? im wanting to bump up boost but not to 5.5 psi worth. If since its been a while, everyone gets the pully boys brand right?

[solow1605]

I ordered a 5.5 psi pulley from pulley boys last night. Now I just gotta wait for it to get here. I really wish i could afford a y pipe and headers =(. I might ask my local shop if they can make me one. Any of the norcal guys wanna get in and see if we can hop on a cheaper price??

[Sleeper]

To run safely on a 5.5 pulley, what mods do you need????

[solow1605]

For 5.5 psi, i'm going to be running an SAFC 2, a 190 lph walbro fuel pump, jim's fuel mod, and a tranny cooler ( i hear it saves yo azz)

[Sleeper]

cant you run it safely just with the safc 2?

[solow1605]

eh, depends on a lot of things man. I would say MAYBE leaning towards no. Didnt I meet you at Long Beach one time? If i remember your car was pretty sick. Mine was pretty much stock back then

[Sleeper]

How can i get jims fuel mod. Make a big difference or neccesary difference?

[solow1605]

imo you need it. I'm not exactly sure how to get it to be honest. I got mine when i got my supercharger

[solow1605]

So after looking at some other posts will a Dayco Poly-Cog 5060895 be ok for a belt??? Or do i need a Dayco Poly-Cog 5060880? Sorry i was kind of confused looking at these.

[solow1605]

bump