Exhaust question
- Thread starter 88GTZ
- Start date
phoonTy
Truckless. For now.
Re: Exhuast question
Re: Exhuast question
Nope. Especially with as cool as the air can get in Alamosa. You'll overboost easily.
You'd do better with a good manual or electronic controller, but would have to watch things when the temps start dropping.
Re: Exhuast question
Nope. Especially with as cool as the air can get in Alamosa. You'll overboost easily.
You'd do better with a good manual or electronic controller, but would have to watch things when the temps start dropping.
phoonTy
Truckless. For now.
Re: Exhuast question
Re: Exhuast question
Yup. I had a high flow cat and a Greddy Profec B on my truck. Most of the time, boost control was rock solid. But in the fall/winter/early spring, I'd have to watch things. Pretty easy to spike boost.
Re: Exhuast question
Yup. I had a high flow cat and a Greddy Profec B on my truck. Most of the time, boost control was rock solid. But in the fall/winter/early spring, I'd have to watch things. Pretty easy to spike boost.
Re: Exhuast question
Re: Exhuast question
As a new Syclone owner myself, I too need to make changes to my exhaust do to some spots rusting and was going to remove my Cat also. Not knowing exactly what you are referring to, what would be a "Manual Boost Control"? Is that a BOV and if so where is te best place to install it?
Also, just asking....you guys say Flow Masters have to much back pressure but the stock mufflers don't seem to be a straight through design either and they seem to work fine??? please explain.
Thanks, Clint
Re: Exhuast question
As a new Syclone owner myself, I too need to make changes to my exhaust do to some spots rusting and was going to remove my Cat also. Not knowing exactly what you are referring to, what would be a "Manual Boost Control"? Is that a BOV and if so where is te best place to install it?
Also, just asking....you guys say Flow Masters have to much back pressure but the stock mufflers don't seem to be a straight through design either and they seem to work fine??? please explain.
Thanks, Clint
TYTILIDIE
METH HEAD
Re: Exhuast question
Re: Exhuast question
Some trucks overboost and some don't. Mine didn't. If you are going to tune the truck I have been finding the stock controller works pretty damn good. Just have to have the balls try it out. With code59, you should be able to control your boost with no exhaust.
Re: Exhuast question
Some trucks overboost and some don't. Mine didn't. If you are going to tune the truck I have been finding the stock controller works pretty damn good. Just have to have the balls try it out. With code59, you should be able to control your boost with no exhaust.
dgoodhue
BuSTeD 4.3
Re: Exhaust question
IMO run a high flow cat if you need a new one. My truck would creep upto 16psi in 3rd gear during a 1/4 mile run (even with the solenoid disconnected, so I should have been getting 8-9psi). My truck didn't overboost though (unless I was planing on running less than 16psi).
IMO run a high flow cat if you need a new one. My truck would creep upto 16psi in 3rd gear during a 1/4 mile run (even with the solenoid disconnected, so I should have been getting 8-9psi). My truck didn't overboost though (unless I was planing on running less than 16psi).
TYTILIDIE
METH HEAD
Re: Exhaust question
I had a high flow 3" cat with no muffler and my truck ran awesome like that. It was fairly tame sounding too. Not too loud, not too quiet. The wife's Ty had a hollowed out cat and a straight through muffler. You rode in it so you know what that sounds like. Do you have to get emissions down there?
I had a high flow 3" cat with no muffler and my truck ran awesome like that. It was fairly tame sounding too. Not too loud, not too quiet. The wife's Ty had a hollowed out cat and a straight through muffler. You rode in it so you know what that sounds like. Do you have to get emissions down there?
Ruddell
Member
Re: Exhaust question
What was the point in making this thread then? Sorry I coulnd't resist.
What was the point in making this thread then? Sorry I coulnd't resist.
It's just a six
Super Member
Re: Exhaust question
Get rid of the Flowmaster & port your stock turbos wastegate hole bigger for better/more flow.:2cents:
The Flow master will slow down the turbo spooling. Causing the engine to boost slowly.
Get rid of the Flowmaster & port your stock turbos wastegate hole bigger for better/more flow.:2cents:
The Flow master will slow down the turbo spooling. Causing the engine to boost slowly.
sy538
New member
Re: Exhaust question
Maybe it's the elevation, but our experiences have been very different. No boost controller can make the door open more then physically possible. I have no doubt that no cat and a stock turbo would have destroyed my engine on the first wot.
Will it hurt yours? We can't tell you for sure, but it might.
With just a downpipe and the actuator rod disconnected from the lever on the wastegate door, which in theory would result in 0 boost, my truck would have made way too much boost, I wouldn't be surprised if it would make 25+ psi. I could not go more then about 60% throttle before getting kr.
I now have a 10cm exhaust housing on the stock turbo, no cat and a 2.5" see through muffler and it still makes a little too much boost.
http://www.syty.net/forums/showthread.php?t=58329
Maybe it's the elevation, but our experiences have been very different. No boost controller can make the door open more then physically possible. I have no doubt that no cat and a stock turbo would have destroyed my engine on the first wot.
Will it hurt yours? We can't tell you for sure, but it might.
With just a downpipe and the actuator rod disconnected from the lever on the wastegate door, which in theory would result in 0 boost, my truck would have made way too much boost, I wouldn't be surprised if it would make 25+ psi. I could not go more then about 60% throttle before getting kr.
I now have a 10cm exhaust housing on the stock turbo, no cat and a 2.5" see through muffler and it still makes a little too much boost.
http://www.syty.net/forums/showthread.php?t=58329
TYTILIDIE
METH HEAD
Re: Exhaust question
I didnt mean dont use a controller. I meant the controller IS capable of controlling the boost with no exhaust. I have no doubt you guys arent seeing those issues and that it could very well be altitude related. But with tuning, he could make it work with no exhaust. We may as well not have exhaust oin our truck and I pretty much didnt have it on mine and I was always able to control it with a controller.
I didnt mean dont use a controller. I meant the controller IS capable of controlling the boost with no exhaust. I have no doubt you guys arent seeing those issues and that it could very well be altitude related. But with tuning, he could make it work with no exhaust. We may as well not have exhaust oin our truck and I pretty much didnt have it on mine and I was always able to control it with a controller.
sy538
New member
Re: Exhaust question
I understood, I was just saying with no boost control at all, wastegate 100% open 100% of the time, with stock turbo and no cat, my truck would over boost at anything more then 60% throttle. That was downpipe only though, no mufflers or anything else.
Only if his internal gate can flow enough. Yours can and that's great. Mine couldn't, not even remotely close. Mine is still slightly too small with the next size up exhaust housing.
I understood, I was just saying with no boost control at all, wastegate 100% open 100% of the time, with stock turbo and no cat, my truck would over boost at anything more then 60% throttle. That was downpipe only though, no mufflers or anything else.
Only if his internal gate can flow enough. Yours can and that's great. Mine couldn't, not even remotely close. Mine is still slightly too small with the next size up exhaust housing.