Thread: running without S/C belt?

sure you can run without it. Never go above 40% tho, bad things could happen.

But the car is made to run with it on, and these cars already get pretty dam good mpgs for how big they are.

youre going to get worse MPG.

I lost my S/C tensioner pulley on the track because the bolt stripped out. I ended up driving home on the interstate babying the car the entire way. If it wants to hit boost and you don't have boost to give it, you're gonna have huge problems!

Originally Posted by CBWhite

Maybe i'm reading this wrong, but i'm assuming u didn't have a sc belt on it...right? So how can u have boost without a belt?

I did not have an S/C belt on hence why I babied it so it wouldn't demand boost that it wasn't getting. Like bio said, you're gonna run rich as hell and risk damage to your motor.

Research how AFR and boost work for a more detailed answer to your question.

Truth to worse MPG's...it's like having a 50 pound hot air intake.

think about it like this. the rotors spin whenever the motor is on. they are designed to let air in only when the rotors move.

so by disabling the rotors the motor cant get air in properly.

and youre gonna run insanely rich anytime you get into the pedal at all.

A supercharger is an air pump. A pump that is not turning becomes a massive restriction. Restrictions cause mph to go down.

PE mode generally kicks in 30-40% throttle in stock gtp's. Then it commands an afr of 11-12, which actually could be in the 10's on a stock gtp if you were to hook up a wideband. You still have the maf sensor probably hitting a lower frequency vs. rpm than what it's used to, fuel trims will take car of that before PE, but it still could be off by a lot. Then there are countless other tables affected or thrown off by this, yeah you would most likely get worse mileage and cause possible harm if you don't drive with some awareness.

Just because you've done something...doesn't mean its good for the car.

Where did i say it was good? He doesn't know what he's talking about. Without the belt there is no boost to be demanded. If the supercharger pulley isn't turning how can you have boost? Someone come on here and explain to me how that's possible. On top of that u have over 16k post, and u don't know what he's stating is wrong? lol...damn! Haven't u learned anything in all those post?

It's not...Brian probably said something wrong. The car is still thinking it is making boost at WOT so its dumping all this fuel when it isn't needed.

Just leave the blower belt on there and drive it like it was made to be driven. If you can't handle the boost...stay out the throttle

Originally Posted by bluegtp91

The car is still thinking it is making boost at WOT so its dumping all this fuel when it isn't needed.

This is what I was saying. Demanding Boost is different than Receiving boost.

Its simple.. You want better mpg's stay out of the throttle.. Don't get into it and the s/c wont even come into play.