# how does a turbo car go in reverse **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [July 11, 2008, 1:39pm UTC](https://forums.speedlife.net/t/how-does-a-turbo-car-go-in-reverse/51341 "2008-07-11T13:39:44Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![boardjnky4](https://avatars.discourse-cdn.com/v4/letter/b/96bed5/32.png) [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)\ **Post date:** [July 11, 2008, 1:39pm UTC](https://forums.speedlife.net/t/how-does-a-turbo-car-go-in-reverse/51341/1 "2008-07-11T13:39:44Z")
mistifies at least one person… > [@krispy](#): > > So we all know that the supercharged engines need the intake bypass valve so they work in reverse. Otherwise the supercharger would just suck all the air out of the cylinder. So knowing that, how does the turbocharged version work in reverse? The engine is trying to suck air backwards, yet the turbo wants to spin forward so I don’t see how it works. Is there some sort of exhausting intake bypass valve on the turbo version? Also, if it does have the valve, does that also mean that it can make boost in reverse? Like how much boost? Like 5 psi or does it go over 20? > > Can anyone help me sort this out? [http://cobaltss.net/forums/showthread.php?t=118899](http://cobaltss.net/forums/showthread.php?t=118899) ---
**Author:** ![ILCisDEAD](https://avatars.discourse-cdn.com/v4/letter/i/a87d85/32.png) [@ILCisDEAD](https://forums.speedlife.net/u/ILCisDEAD)\ **Post date:** [July 11, 2008, 1:40pm UTC](https://forums.speedlife.net/t/how-does-a-turbo-car-go-in-reverse/51341/2 "2008-07-11T13:40:07Z")
HAHAHAHAHAAHAHAHAHAHAHAHAHAHAHAHAHAHAHA > wow, lots of replies already, thanks guys > Real reason I’m asking because a friend is getting a 93 Corvette and he wants to race me. I said we can race to 30 mph because I think if I go from reverse I’ll get better weight transfer and beat him, but I’m concerned about making full boost since the turbocharger will be spinning backwards. > > * * * ---
**Author:** ![theblue](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/theblue/32/5074_2.png) [@theblue](https://forums.speedlife.net/u/theblue)\ **Post date:** [July 11, 2008, 1:41pm UTC](https://forums.speedlife.net/t/how-does-a-turbo-car-go-in-reverse/51341/3 "2008-07-11T13:41:21Z")
![http://i298.photobucket.com/albums/mm272/invisiblegmc/airplane-fail.jpg](http://i298.photobucket.com/albums/mm272/invisiblegmc/airplane-fail.jpg) ---
**Author:** ![Dr.Stevil](https://avatars.discourse-cdn.com/v4/letter/d/da6949/32.png) [@Dr.Stevil](https://forums.speedlife.net/u/Dr.Stevil)\ **Post date:** [July 11, 2008, 1:42pm UTC](https://forums.speedlife.net/t/how-does-a-turbo-car-go-in-reverse/51341/4 "2008-07-11T13:42:11Z")
hahahahaha, this guy has no grip on gearing and transmissions I assume ---
**Author:** ![Karter](https://avatars.discourse-cdn.com/v4/letter/k/e480ec/32.png) [@Karter](https://forums.speedlife.net/u/Karter)\ **Post date:** [July 11, 2008, 1:43pm UTC](https://forums.speedlife.net/t/how-does-a-turbo-car-go-in-reverse/51341/5 "2008-07-11T13:43:03Z")
Wasnt this posted already? i swear ive read it on here before. ---
**Author:** ![Bacon](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bacon/32/7230_2.png) [@Bacon](https://forums.speedlife.net/u/Bacon)\ **Post date:** [July 11, 2008, 1:45pm UTC](https://forums.speedlife.net/t/how-does-a-turbo-car-go-in-reverse/51341/6 "2008-07-11T13:45:42Z")
> [@theblue](#): > > ![http://i298.photobucket.com/albums/mm272/invisiblegmc/airplane-fail.jpg](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/3X/a/5/a515ad58eda29f935238055a990932a6b1ee2c32.jpeg) :lol: ---
**Author:** ![ILCisDEAD](https://avatars.discourse-cdn.com/v4/letter/i/a87d85/32.png) [@ILCisDEAD](https://forums.speedlife.net/u/ILCisDEAD)\ **Post date:** [July 11, 2008, 1:46pm UTC](https://forums.speedlife.net/t/how-does-a-turbo-car-go-in-reverse/51341/7 "2008-07-11T13:46:41Z")
ruined > geez, you guys post quickly, I was busy running an experiment to try to figure this out for myself > I was thinking “how can you prove that the engine is running backwards” when it hit me, I can use a balloon. So I got a balloon and put it around the exhaust tip. I figured when I start the car it will inflate, but when I put it in reverse it will suck the air and balloon back in. So I started the car up and went in reverse about 10 feet then turned the car off. I went and checked the tail pipe and sure enough there was no balloon, it got sucked inside the tail pipe. So I got back in the car, started it up and drove forward about 5 feet. I got out and looked on the ground and the balloon was right behind the tip. So when I pulled forward it shot the balloon that was in the exhaust back out and thats why it was on the ground. > So yea, engine runs in reverse in reverse, now I just need to do it again and see if I get full boost. > > * * * ---
**Author:** ![Minglor](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/minglor/32/7373_2.png) [@Minglor](https://forums.speedlife.net/u/Minglor)\ **Post date:** [July 11, 2008, 1:52pm UTC](https://forums.speedlife.net/t/how-does-a-turbo-car-go-in-reverse/51341/8 "2008-07-11T13:52:57Z")
[http://www.nyspeed.com/forums/showthread.php?t=52846](http://www.nyspeed.com/forums/showthread.php?t=52846) Fial. ---
**Author:** ![boardjnky4](https://avatars.discourse-cdn.com/v4/letter/b/96bed5/32.png) [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)\ **Post date:** [July 11, 2008, 1:53pm UTC](https://forums.speedlife.net/t/how-does-a-turbo-car-go-in-reverse/51341/9 "2008-07-11T13:53:24Z")
wat? ---
**Author:** ![Southtowns27](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/southtowns27/32/5002_2.png) [@Southtowns27](https://forums.speedlife.net/u/Southtowns27)\ **Post date:** [July 11, 2008, 1:58pm UTC](https://forums.speedlife.net/t/how-does-a-turbo-car-go-in-reverse/51341/10 "2008-07-11T13:58:58Z")
lol Does noone recognize the sarcasm? ---
**Author:** ![Justin](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/justin/32/7459_2.png) [@Justin](https://forums.speedlife.net/u/Justin)\ **Post date:** [July 11, 2008, 2:18pm UTC](https://forums.speedlife.net/t/how-does-a-turbo-car-go-in-reverse/51341/11 "2008-07-11T14:18:19Z")
rofl