amg guy

iTrader: (1)

How long have some of you guys run say a 180 pulley before doing a tune? I have HE coming from EC which will go on the car first.Thinking of putting the HE and pulley on and maybe headers before driving up to OE.

tbal

If you want to blow your motor do it up.

amg guy

iTrader: (1)

i figured as much, just thought I'd ask.

tbal

If you really have to I would be suppppppper gentle on throttle.

I ran a 168 without a tune for awhile but that's a tiny pulley.

GT-ER

It will be fine as long as you don't go wide open throttle. Driving it to OE will bring no issues if you take it easy.

If you want to be extra extra safe...just drive without the supercharger belt.

Denroll

Should be fine on the highway doing it granny style.

Evolved8

You will be completely fine as long as you baby it.

99lightning

stay out of boost simple as that

shardul

iTrader: (1)

You will be fine. Just keeps the revs under 4k

urbamworm

Didn't the member Sneakyneon run several mods with a pulley being one of them for quite a while before he decided to get his car tuned? Pretty sure I remember digging through old threads and reading that.

EDIT: In fact he was dragging the car to and ran 11.6@122, with his 195mm pulley, shorty headers, big throttle body, meth injection and stock tune. click here

So much for the you better take it easy, no boost, keep it under 4000rpm theory going on in here lol

GT-ER

Meth injection.

It may work without a tune, the car should have fail safes built into the software that will protect it...but why chance it?

urbamworm

I don't know the order of his mods and what he had when, so don't know without digging through all his threads if he ran meth the whole time with bigger pulley or not.

Forrest Gump 9

Yup, he was a pioneer in the fuel system upgrade too. I too installed headers, 82mm tb, custom intake, and 180mm pulley on my car for months before get it retune. I also went to the track couple times like that too. I guess I was lucky or too dumb to know better. Oh yeah, my fuel system is still stock.

emoving

I drove one from IL to OH with a pulley and no tune. Laid low and got the tune when I got home. No issues.

Karlson

I had 180mm pulley and headers for two weeks before tune,just don't floor it