That's a matter of opinion.
A8 supercharged
Thread Starter
Melting Slicks
Joined: Apr 2008
Posts: 2,582
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From: Hudson, NH
A8
[QUOTE=PGSJOE;1589388572]Call a (reputable) shop OR TWO and ask this: will I smell oil fumes? Will I hear the supercharger at idle? will a bad tune kill my engine, Will my A8 behave the same as it does now, will it run hotter in summer, in Traffic. oh and will I smell oil fumes.
Take the offer or find someone who will take you on a short ride in a car set up like you want to do yours and then you will answer all of the questions in your head.[/QUOTE
All good advice
Take the offer or find someone who will take you on a short ride in a car set up like you want to do yours and then you will answer all of the questions in your head.[/QUOTE
All good advice
Melting Slicks
Joined: Nov 2014
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From: Fayetteville North Carolina
St. Jude Donor '15
Le Mans Master
Joined: Jun 2014
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From: Over there
As far as supercharging your car goes, you're going to have more response down low which will definitely be noticable, you're going to gain torque and power everywhere, but your fuel economy is going to take a hit. You're not going to run into NVH issues because you're not changing internal parts (cam is the biggest NVH hit you can do), just putting more air in the engine. It should go without saying, but you'll have to tune the car as well.
I'm sorry if I derailed your thread. I was just responding to the comment that turbos are better (which isn't true).
Last edited by Crabbers; Apr 10, 2015 at 03:14 PM.
Thread Starter
Melting Slicks
Joined: Apr 2008
Posts: 2,582
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From: Hudson, NH
A8
So sorry I truly didn't mean you in particular. Just wanted to keep the thread on topic. You are always welcome. Please feel free to jump in any time.
Melting Slicks
Joined: Nov 2014
Posts: 2,204
Likes: 17
From: Fayetteville North Carolina
St. Jude Donor '15
Call a (reputable) shop OR TWO and ask this: will I smell oil fumes? Will I hear the supercharger at idle? will a bad tune kill my engine, Will my A8 behave the same as it does now, will it run hotter in summer, in Traffic. oh and will I smell oil fumes.
Take the offer or find someone who will take you on a short ride in a car set up like you want to do yours and then you will answer all of the questions in your head.
Take the offer or find someone who will take you on a short ride in a car set up like you want to do yours and then you will answer all of the questions in your head.
A bad tune will kill any engine.
The way the transmission behaves will largely depend on who tunes it and what changes they make.
Without a doubt it will run hotter, a supercharger is an air compressor and by definition compressing air increases the temperature of it. Intercoolers help reduce IAT's but they are still extracting heat from the system. Underhood temps will go up, and the entire cooling system will be taxed more.
OP do you want a centrifugal, or PD blower? Are you familiar with the differences?
Melting Slicks
Joined: Nov 2014
Posts: 2,204
Likes: 17
From: Fayetteville North Carolina
St. Jude Donor '15
I don't know if you misread my post, but to clarify, I was asking that as a question of disbelief. I don't think turbos are better.
As far as supercharging your car goes, you're going to have more response down low which will definitely be noticable, you're going to gain torque and power everywhere, but your fuel economy is going to take a hit. You're not going to run into NVH issues because you're not changing internal parts (cam is the biggest NVH hit you can do), just putting more air in the engine. It should go without saying, but you'll have to tune the car as well.
I'm sorry if I derailed your thread. I was just responding to the comment that turbos are better (which isn't true).
As far as supercharging your car goes, you're going to have more response down low which will definitely be noticable, you're going to gain torque and power everywhere, but your fuel economy is going to take a hit. You're not going to run into NVH issues because you're not changing internal parts (cam is the biggest NVH hit you can do), just putting more air in the engine. It should go without saying, but you'll have to tune the car as well.
I'm sorry if I derailed your thread. I was just responding to the comment that turbos are better (which isn't true).
Le Mans Master
Joined: Jun 2014
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From: Over there
The two parts in bold are not necessarily true. Depending on the type of blower and supporting mods you may lose torque at very low rpms (under 2000) and NVH will almost for sure be worse. The edlebrock e-force may be close to as quiet as stock but if you have ever heard a procharger you would know they are LOUD as hell. I mean really really really loud.
) because OP asked if it would have drivability issues. I was totally focused on feel and not sound. So I stand corrected. There will be whine (the level depends on a lot of things), but you're not going to have a worse feel in the car like you would if you put in a cam or something along those lines.As far as losing torque down low, I'm not so sure I can get on board with that. I've never seen a (properly done) supercharging application where the car lost torque.
Thread Starter
Melting Slicks
Joined: Apr 2008
Posts: 2,582
Likes: 496
From: Hudson, NH
A8
The two parts in bold are not necessarily true. Depending on the type of blower and supporting mods you may lose torque at very low rpms (under 2000) and NVH will almost for sure be worse. The edlebrock e-force may be close to as quiet as stock but if you have ever heard a procharger you would know they are LOUD as hell. I mean really really really loud.
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Le Mans Master
Joined: Jun 2014
Posts: 7,474
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From: Over there
This thing is really complicated. I guess like all things the more years you know the better it turns out. I was hoping for a nice 100 hp/torque boost and a slight SC whine. I also wanted stock drive ability. If it is more difficult to drive then I'm not very interested.
The car isn't going to feel different aside from having more oomph. It will drive just as well as it does now. You're also not going to have deafening whine. Best way to find out would be to take up the offer to drive one. Good luck with your decision
Melting Slicks
Joined: Nov 2014
Posts: 2,204
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From: Fayetteville North Carolina
St. Jude Donor '15
That's a good point. I wasn't really thinking of supercharger noise when I said NVH (ironic since it has noise right in it ) because OP asked if it would have drivability issues. I was totally focused on feel and not sound. So I stand corrected. There will be whine (the level depends on a lot of things), but you're not going to have a worse feel in the car like you would if you put in a cam or something along those lines.
As far as losing torque down low, I'm not so sure I can get on board with that. I've never seen a (properly done) supercharging application where the car lost torque.
) because OP asked if it would have drivability issues. I was totally focused on feel and not sound. So I stand corrected. There will be whine (the level depends on a lot of things), but you're not going to have a worse feel in the car like you would if you put in a cam or something along those lines.As far as losing torque down low, I'm not so sure I can get on board with that. I've never seen a (properly done) supercharging application where the car lost torque.
The trade off is that since the TB is so big the velocity suffers, a very small throttle % is a huge amount of air, so there is a delay when you are at tip in. The bigger the throttle body the more delay there is, the Kenne Bell on my last car had a significantly more lazy throttle than my car did when it was stock and made 500 less hp lol.
If you're talking WOT to WOT you would likely never notice it, but for day to day driving it can be significant. I never cared for that on my car.
Le Mans Master
Joined: Jun 2014
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From: Over there
PD blowers love big throttle bodies, you can't really make big power with one if you use a stock TB because it chokes the inlet. That's why you see Kenne Bell use their "Mammoth" inlet on most everything now, and a lot of kits include a bigger throttle body.
The trade off is that since the TB is so big the velocity suffers, a very small throttle % is a huge amount of air, so there is a delay when you are at tip in. The bigger the throttle body the more delay there is, the Kenne Bell on my last car had a significantly more lazy throttle than my car did when it was stock and made 500 less hp lol.
If you're talking WOT to WOT you would likely never notice it, but for day to day driving it can be significant. I never cared for that on my car.
The trade off is that since the TB is so big the velocity suffers, a very small throttle % is a huge amount of air, so there is a delay when you are at tip in. The bigger the throttle body the more delay there is, the Kenne Bell on my last car had a significantly more lazy throttle than my car did when it was stock and made 500 less hp lol.
If you're talking WOT to WOT you would likely never notice it, but for day to day driving it can be significant. I never cared for that on my car.
Melting Slicks
Joined: Nov 2014
Posts: 2,204
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From: Fayetteville North Carolina
St. Jude Donor '15
This thing is really complicated. I guess like all things the more years you know the better it turns out. I was hoping for a nice 100 hp/torque boost and a slight SC whine. I also wanted stock drive ability. If it is more difficult to drive then I'm not very interested.
Based on your comments you should look at the Edlebrock E-Force kit. It should have the best driveability and give you exactly the power you want. It doesn't sound like a giant whooshy street sweeper like a procharger and they are built as a complete kit with 50 state legal tune.
Be VERY careful of other people and shops telling you which supercharger is "best". Usually they are mostly focused on racing or maximum power on a dyno sheet, neither of those things should be your main focus for a good-mannered street car like you want.
At lower boost levels the new superchargers don't whine as bad as the old ones, but if you run the right air intake you'll definitely hear it.
Le Mans Master
Joined: Jun 2014
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From: Over there
If you want a whine then you need a PD (positive displacement) blower, which usually has either Roots or Lysholm screws in it. The blower on a ZR1 or Z06 is an Eaton (the company I work for) roots supercharger. Roots superchargers are (in general) less efficient than a Lysholm (twin screw) supercharger although at low boost levels the Eaton TVS is very comparable to a twin screw.
Based on your comments you should look at the Edlebrock E-Force kit. It should have the best driveability and give you exactly the power you want. It doesn't sound like a giant whooshy street sweeper like a procharger and they are built as a complete kit with 50 state legal tune.
Be VERY careful of other people and shops telling you which supercharger is "best". Usually they are mostly focused on racing or maximum power on a dyno sheet, neither of those things should be your main focus for a good-mannered street car like you want.
At lower boost levels the new superchargers don't whine as bad as the old ones, but if you run the right air intake you'll definitely hear it.
Based on your comments you should look at the Edlebrock E-Force kit. It should have the best driveability and give you exactly the power you want. It doesn't sound like a giant whooshy street sweeper like a procharger and they are built as a complete kit with 50 state legal tune.
Be VERY careful of other people and shops telling you which supercharger is "best". Usually they are mostly focused on racing or maximum power on a dyno sheet, neither of those things should be your main focus for a good-mannered street car like you want.
At lower boost levels the new superchargers don't whine as bad as the old ones, but if you run the right air intake you'll definitely hear it.
Great advice.
Thread Starter
Melting Slicks
Joined: Apr 2008
Posts: 2,582
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From: Hudson, NH
A8
We're making it out to be a lot more complicated than it really is
The car isn't going to feel different aside from having more oomph. It will drive just as well as it does now. You're also not going to have deafening whine. Best way to find out would be to take up the offer to drive one. Good luck with your decision
The car isn't going to feel different aside from having more oomph. It will drive just as well as it does now. You're also not going to have deafening whine. Best way to find out would be to take up the offer to drive one. Good luck with your decision
Thanks for the input
Melting Slicks
Joined: Nov 2014
Posts: 2,204
Likes: 17
From: Fayetteville North Carolina
St. Jude Donor '15
But then that wouldn't be a properly done application (IMO). If the application is for street driving, you wouldn't go with one of those setups. If you're going to build a race car, it doesn't matter at all what you make down low, so having a huge throttle body doesn't matter at all because it's all about top end power.
Le Mans Master
Joined: Jun 2014
Posts: 7,474
Likes: 116
From: Over there
Thread Starter
Melting Slicks
Joined: Apr 2008
Posts: 2,582
Likes: 496
From: Hudson, NH
A8
We're making it out to be a lot more complicated than it really is
The car isn't going to feel different aside from having more oomph. It will drive just as well as it does now. You're also not going to have deafening whine. Best way to find out would be to take up the offer to drive one. Good luck with your decision
The car isn't going to feel different aside from having more oomph. It will drive just as well as it does now. You're also not going to have deafening whine. Best way to find out would be to take up the offer to drive one. Good luck with your decision
Racer
Joined: Sep 2011
Posts: 452
Likes: 6
From: Pinson AL
I raised the points I did because I did an A&A kit on a C6 and was really - really disappointed. The WOT power was not worth the temp problems, cat problems, underhood heat tripping AC off problems, unusual from original trans behavior despite tuning, oil fume smell and freakin NOISE at idle.
5K for kit 3K to install and then the adders quickly turned to 11K needing high flow cats, better radiator, catch can system and one thing after another. Would buy a 03/04 cobra, modern shelby, ZR1 or Zo6 or anything factory supercharged in a heartbeat but will not aftermarket supercharge my car. Really happy for all of those who have and love it, howver it was not for me.
5K for kit 3K to install and then the adders quickly turned to 11K needing high flow cats, better radiator, catch can system and one thing after another. Would buy a 03/04 cobra, modern shelby, ZR1 or Zo6 or anything factory supercharged in a heartbeat but will not aftermarket supercharge my car. Really happy for all of those who have and love it, howver it was not for me.
Thread Starter
Melting Slicks
Joined: Apr 2008
Posts: 2,582
Likes: 496
From: Hudson, NH
A8
I raised the points I did because I did an A&A kit on a C6 and was really - really disappointed. The WOT power was not worth the temp problems, cat problems, underhood heat tripping AC off problems, unusual from original trans behavior despite tuning, oil fume smell and freakin NOISE at idle.
5K for kit 3K to install and then the adders quickly turned to 11K needing high flow cats, better radiator, catch can system and one thing after another. Would buy a 03/04 cobra, modern shelby, ZR1 or Zo6 or anything factory supercharged in a heartbeat but will not aftermarket supercharge my car. Really happy for all of those who have and love it, howver it was not for me.
5K for kit 3K to install and then the adders quickly turned to 11K needing high flow cats, better radiator, catch can system and one thing after another. Would buy a 03/04 cobra, modern shelby, ZR1 or Zo6 or anything factory supercharged in a heartbeat but will not aftermarket supercharge my car. Really happy for all of those who have and love it, howver it was not for me.
have that "wow" feeling in another way.