Modding the TT?
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New Member
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Re: Modding the TT?
When it comes to modding the car and making it faster, is the S4 better suited for this? I would like to have a car in the low 5's and in the 12's in the 1/4 mile times. But maybe without doing major mods, this isn't possible with the TT. How about the S4? I like the S4, but it's a sedan. The TT is very exotic looking, but not very practical.
Stuipd question, but what is a FMIC mod?
I won't have 25K after I buy the car, but that does sound like a sweet conversion. But probably a little too much for me.
SCTT: What add ons do you have on your car to run sub 6 times? Ever run it 1/4 mile?
Stuipd question, but what is a FMIC mod?
I won't have 25K after I buy the car, but that does sound like a sweet conversion. But probably a little too much for me.
SCTT: What add ons do you have on your car to run sub 6 times? Ever run it 1/4 mile?
Elder Member
Joined: Mar 2000
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S4 is more suited to making more power
By a little bit. It would be far better suited if there were more people who owned them and therefore there were more mods. An S4 with a simple chip makes 307HP, a TT 225 with a simple chip makes maybe 240HP, so which do you think is better suited to make power?
FMIC is a Front Mounted InterCooler. It lowers charge temps and increases charge density. With a good turbo it is invaluable, it increases power output significantly.
The TT (225HP) has two FMICs already. Some people think one big one works better on modded cars. There is evidence to support their theories.
FMIC is a Front Mounted InterCooler. It lowers charge temps and increases charge density. With a good turbo it is invaluable, it increases power output significantly.
The TT (225HP) has two FMICs already. Some people think one big one works better on modded cars. There is evidence to support their theories.
AudiWorld Senior Member
Joined: Mar 2000
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S4 would be better
chip - $600 - 310HP
+ cat back exhaust +$600-1200 - 320HP
+ downpipes & cats +$1600-2000 - 350HP / 13sec 1/4 mi / sub 5 0-60
At this $ level, you could also consider the M-Coupe...
+ cat back exhaust +$600-1200 - 320HP
+ downpipes & cats +$1600-2000 - 350HP / 13sec 1/4 mi / sub 5 0-60
At this $ level, you could also consider the M-Coupe...
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5 sec 0-60 equals 13.9 quarter miles. Doubt you are...
going to see 12 second quarter miles with a 5.0 second 0-60 car. For instance, I have a M Roadster that runs 4.8 to 4.9 0-60's and will run 13.6 to 13.8 quarter miles. I have not had my TT to the strip but I would guess even modded that it is slower.
GRINS, Curt
ps: FMIC = is a large Front Mounted InterCooler
GRINS, Curt
ps: FMIC = is a large Front Mounted InterCooler
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actually - they are side mount from the factory - more...
the "front mount" part refers to the placement at the front of the car, but more importantly directly in the path of oncoming air at speed to create a high pressure area in front and low pressure area in back of the IC to get optimal flow and heat-sink capability...easiest at the leading edge, hence FMIC.
this where I'm at performance wise:
Chip w/spare ECU 1K (APR)
Exhaust - 600 (borla)
K&N drop-in air filter - 45
Forge FMIC - 1000 (got a deal)
Suspension (H&R springs/Bilstein) - 800
Neuspeed Rear Bar - 200
Stoptech Big Brakes for front - 1000 (got a deal)
Mintex Red box pads rear and EBC front - 160
so under 5K in mods and I've run mid 5's without the FMIC - haven't tested with it yet, and the car handles and stops like a dream.
the one bad thing about the S4 is the stock suspension - it is unnaturally fast fomr th factory (for a 3600+ lb car) but it rolls like fat beached whale. The thing is - it still sticks - it only feels like you're gonna lose it.
The S4 can be modded to much higher HP numbers with the stock turbos/engine - but it will still be a sport sedan, not a true sports car.
both are cool.
this where I'm at performance wise:
Chip w/spare ECU 1K (APR)
Exhaust - 600 (borla)
K&N drop-in air filter - 45
Forge FMIC - 1000 (got a deal)
Suspension (H&R springs/Bilstein) - 800
Neuspeed Rear Bar - 200
Stoptech Big Brakes for front - 1000 (got a deal)
Mintex Red box pads rear and EBC front - 160
so under 5K in mods and I've run mid 5's without the FMIC - haven't tested with it yet, and the car handles and stops like a dream.
the one bad thing about the S4 is the stock suspension - it is unnaturally fast fomr th factory (for a 3600+ lb car) but it rolls like fat beached whale. The thing is - it still sticks - it only feels like you're gonna lose it.
The S4 can be modded to much higher HP numbers with the stock turbos/engine - but it will still be a sport sedan, not a true sports car.
both are cool.
AudiWorld Super User
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Consider sticking with an American muscle car if your primary concern is 0-60 or ¼ mile times....
It's way cheaper to modify American cars and you get bigger bang for the buck when you do.
Turbo engines are a different animal altogether. Audi engines are typically small displacement compared to the American engines therefore do not have a high mass flow thru the engine therefore power at low rpms. However, they do produce V8 like power above ~4000 rpm with help of a turbo charger (or two).
As for my engine mods, I currently have a GIAC brand chip and a full exhaust including high flow cats. I have given a Mustang Cobra or two fits on the freeway with this setup.
Turbo engines are a different animal altogether. Audi engines are typically small displacement compared to the American engines therefore do not have a high mass flow thru the engine therefore power at low rpms. However, they do produce V8 like power above ~4000 rpm with help of a turbo charger (or two).
As for my engine mods, I currently have a GIAC brand chip and a full exhaust including high flow cats. I have given a Mustang Cobra or two fits on the freeway with this setup.
Elder Member
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TT won't be a true sports car either
Tough to pass off a FWD car (even with rear-ganging part time AWD) as a real sports car. Seen the TT weight distribution lately? Or for that matter the weight?
I have to disagree with you about the TT ICs. They are mounted on front and receive front air. That makes them FMICs in my book. They don't have the huge hole and they have slightly restricted airflow. But don't think because they are on the corners they don't get a lot of ram air.
Compare to an MR2 or WRX, which truly don't have FMICs.
I have to disagree with you about the TT ICs. They are mounted on front and receive front air. That makes them FMICs in my book. They don't have the huge hole and they have slightly restricted airflow. But don't think because they are on the corners they don't get a lot of ram air.
Compare to an MR2 or WRX, which truly don't have FMICs.
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they get VERY little air flow directly on them - have you measured pressure
front and back? I have as have others - they just aren't great locations for IC's...
anyway - it is a sportscar - your logic would dictate that a rear engine design (called a "terrible design executed brilliantly" in the past) such as a 911 is not a true sportscar too...talk about weight distribution...
as for weight - hmmmmm... 3100-3200 pounds sounds the same as a:
996 carrera/cabbie
C5
lighter than a 996 turbo
yep - its a big fat heavy pig that weighs the same or less than other "sports cars"
its a 2 door 2 seater that goes fast - its a sportscar
anyway - it is a sportscar - your logic would dictate that a rear engine design (called a "terrible design executed brilliantly" in the past) such as a 911 is not a true sportscar too...talk about weight distribution...
as for weight - hmmmmm... 3100-3200 pounds sounds the same as a:
996 carrera/cabbie
C5
lighter than a 996 turbo
yep - its a big fat heavy pig that weighs the same or less than other "sports cars"
its a 2 door 2 seater that goes fast - its a sportscar
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Elder Member
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most TTs aren't even 2 seaters
Roadsters are the only 2 seat TTs. Of course, you'll come back with the 911 again here.
Honestly, the 911 is a total anomaly in nearly every way. I think the fact that no one else bothers copying the design indicates that it isn't the standard. I don't think it's really the car you should be comparing cars to to determine if it is a sports car. A great performing car, yes, but the model for a sports car, I can't agree.
Of the cars you compared the weight to, you listed two cars that are 911s (see above) and one that the TT is actually lighter than by about 100 or more lbs despite the size difference. Also one with a nearly 50/50 weight distribution.
And about weight distributions, you know as well as I why too much weight over the front wheels is a bad thing. Sure you're saying, you can get away with too much weight in the back, but too much weight in the front is far worse. You can't get the car to turn, where as too much weight in the back is just more likely to produce oversteer (ala 911s of old).
I have not measured the pressure drop across the TT intercoolers. Could you give me numbers since you have? Also comparable numbers for a center mount FMIC.
Honestly, the 911 is a total anomaly in nearly every way. I think the fact that no one else bothers copying the design indicates that it isn't the standard. I don't think it's really the car you should be comparing cars to to determine if it is a sports car. A great performing car, yes, but the model for a sports car, I can't agree.
Of the cars you compared the weight to, you listed two cars that are 911s (see above) and one that the TT is actually lighter than by about 100 or more lbs despite the size difference. Also one with a nearly 50/50 weight distribution.
And about weight distributions, you know as well as I why too much weight over the front wheels is a bad thing. Sure you're saying, you can get away with too much weight in the back, but too much weight in the front is far worse. You can't get the car to turn, where as too much weight in the back is just more likely to produce oversteer (ala 911s of old).
I have not measured the pressure drop across the TT intercoolers. Could you give me numbers since you have? Also comparable numbers for a center mount FMIC.
New Member
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There is no real correlation between 0-60 and quarter mile times
First, one is time to speed, and the other is time to distance.
Second, people use different techniques to measure 0-60, but a drag strip is a drag strip...
As a case in point, my last LT-1 Vette would run pretty consistent 4.8s to 60 on a Vericom, recorded while running 13 flat quarter mile times. (bests of 4.7 and 12.87). That doesn't jibe very well with your 5.0 = 13.9
Second, people use different techniques to measure 0-60, but a drag strip is a drag strip...
As a case in point, my last LT-1 Vette would run pretty consistent 4.8s to 60 on a Vericom, recorded while running 13 flat quarter mile times. (bests of 4.7 and 12.87). That doesn't jibe very well with your 5.0 = 13.9