veryswag

anyone running a 70mm clutched sc pulley? what are your supporting mods ?

http://www.ebay.com/itm/252715256572...%3AMEBIDX%3AIT

MACEDON

I just pour liquid nitrogen in my coolant tank

shardul

iTrader: (1)

Better of with a 77mm, unless you want to over spin the blower

Hulk

Well said
These crazy small blowers!
No reason to have a 200mm crank equivalent

veryswag

Some no one is running this pulley?

Hulk

Why are you so hell bent on running so much boost?
As said the blower will be turning too much essentially it will become a heat pump

FunkTron

Not that I have seen.

veryswag

lol not hell bent on running it ...just curious about it because its sold by several vendors online, so figured someone must be running it

theoretically, if you upgrade to a large h/e, split cooling, killer chiller + meth , you still wouldn't be able to run to 70mm?
pretty sure ive seen builds on here with 77 upper + 168 lower, which is not far off


i will probably go with the 77mm as shardul suggested

MACEDON

You could run it if you were in North Dakota in the winter

Hulk

No matter what cooling you have unless you have 40-50* year round it's not worth it

MACEDON

200mm + 70mm fixed pulley should be fine in Florida weather tbh

Hulk

Oh ya of course lol

PieRat

I think the supercharger gets too inefficient at that ratio so you generate more heat than extra boost like hulk says. It probably gets worse exponentially past a certain point but im not engineer!

oneslow55

74 is the max !!!!!!Rest your creating a bigger heat pump.The stock blower was not made for all that boost being thrown at it.

MACEDON

Why are such small pulleys even available?

FunkTron

for people running killer chiller, meth, mid sleeves, 1000cc injectors, 4 inch intakes, and prayers.

PieRat

Powered by god bumper sticker included with 70mm?

travhwrd

False info here.



I have a 72mm FSP, in FLORIDA.
Killer chiller, trunk tank, meth.
Cruising is 20* below ambient usually, and wot doesn't go over 110f.

Mod, enjoy.

Cooling, and fuel first. As you may start leaning out like I did.

Hulk

It's not false
A 70mm is going to make that blower a heat pump


I wish everyone that says these small pulleys are great go to the track and prove it

travhwrd

I've been to the track.
Ran a 12.02 @121.9mph

On street tires and spinning. 2.2 60ft. Which is terrible.

But that mph isn't bad. This was also in Florida, while I was leaning out, on street tires, and 80+f ambient

They can be tamed, and are very worth it when done

Hulk

Too much for Florida heat
I'm in south Florida
And I ran mine in warm weather too as cold weather is few and far between

travhwrd

Florida is Florida from what I've noticed lol. Been all over here my whole life.

It's very hot, but anything can be done.

BoostedAero

Prayers = my first mod lol

Awesome post Funktron





That is a nice respectable 11.42/11.52 sec pass if you could hook T good on ya

I would stay away from the 70mm as my first mod... I think that is all that hulk is really getting at

You guys are actually disagreeing while agreeing at the same time

Like Travis said if you choose this pulley you MUST have massive cooling in place or it WILL be slower than your car is stock!
(+/- $2k-$4,500k depending on who does the install and if new/used parts)

Log the whole damn time or have about $4k stacked up to replace the motor (less if doing it yourself) - also what Travis was eluding to

travhwrd

Exactly, I was stating you need full blown cooling for that pulley here. Compared to a 72mm you're looking at like .2 more pounds of boost. So not much difference. A clutched pulley definitely generates less heat most of the time

Manuyc

i have the 74mm clutch-less pulley from shardul and very happy with it. sounds amazing i have the split cooling heat exchanger and upgraded pump everything runs perfect. looking to add meth next