TRD/ Magnuson 4.0 Supercharger Tips, Tricks, and Mods

like i said to zipsub9 check your critical shaft speed. you dont want to have to buy 2 driveshafts.

 

https://spicerparts.com/calculators/driveshaft-safe-operating-rpm-calculator
for everyone thinking about driveshafts.
if i recall correctly, you want the shaft rpms to be at or less than half critical speed.
shaft rpm= trans ratio / max safe engine speed.
e.g. 5500 / (auto 5th gear) .716 = 7681.xxx
so a one piece can hit half critical speed quite quickly.
the two piece has two short driveshafts raising the limit higher.
this may not be the best, but it should get you going in the right direction for what you need.

 

i was under the impression a 1 pc is ok with a sbdc.

 

tire size and axle gearing all play into it. it will change your driveshaft speed.

 

Do I smell a ROOST Y-Pipe sticker in the works?1?!

 

Hmmmmmm I do love hitting critical speed with my shaft.

 

Just be careful to avoid burns.

 

If the tech looked up the eo number they would know it’s false. I dont think they will put the truck on a lift to look down there anyway so I am gonna risk that one lol

 

@Roostfactor ? lol

 

Needs a prop 65 warning for CA. Literally everything has that warning. Even the sticker that’s giving the warning has the warning.

 

The lady I talked to was super helpful and said have the dealer call and they will walk them through it.

 

Their phone lines are currently off because of covid. I had my dealer guy email them but I am just gonna have the stickers made as I don't know if they are even gonna give him the sticker

 

I talked to a guy and said he’s going to check and get back to me. if you get some made let me know.

 

how bad would it be to drive on on a 2.5 pulley before upgrading the fuel pump and valve body? I have both even with SIP im limited on time. I do have a 2.8 I can put on in the meantime but figure ill see how bad it would be to have the 2.5 on minus the 2 mods for a period of time.

 

Fuel pump absolutely.

 

the length of time is directly inverse to your right foot discipline. I don’t think a couple weeks or a month would hurt bad. But once you get a taste remind yourself not to burn out anything else.

 

Will do!

 

That sucker is gonna be spinning way too fast, even at low RPMs the demand is way higher than the stock fuel system was intended for.

 

It all comes down to how seriously the tech doing the inspection take his job. I had my Rav4 sniffed hard this year. Dude said he will check numbers on CATs if they are aftermarket. And stickers are a must.