Help a noob decide between Turbo or super

[Corsec]

OK guys a few quick opinions if u please. I have pretty much sold myself on a twin turbo setup, gonna upgrade the clutch-looking real hard at the ATC Twin, want to upgrade the exhaust, and will be making a few changes to the springs and sways to get rid of the roll. I am targeting 600-650 rwhp. I really like the idea of the turbos when going for this much hp on a stock motor, just seems like the longevity might be a little better since I won't have to carry the extra hp to make up for a crank driven blower. But as silly as it may sound, one of my biggest hold ups is the fact that I don't know what it will sound like. Can you still get the muscle car rumble from a turbo charged motor? When I started the research I was very excited about getting that custom cam lope, not gonna happen with a turbo, right? I have watched several of the youtube videos of the twin turbos running, its just very difficult to tell what startup and idle sound like. So any of you TT owners out there that could let me know how they sound on the low end? I live in OK and we have no inspections on our cars so I can go with pretty much any kind of exhaust I want so any input in that direction would be appreciated, right now the car has no performance upgrades just a muffler delete. I don't necessarily want a loud car, just a car that when it starts up you know you have awoken a beast :-) Last question, I have a 2ss rs, are the stock tires enough for this much HP on the low end or do you need to change wheels? The car is just a fun driver and might go to the drag strip a couple times a year. Thanks for any input!

[mlee]

Welcome... is all I can say...

...I've worn myself out trying to decide this one... there are a ton of good threads on it here...

[tony1]

Just get your TT and crank it up to 650whp strap on your helmet and let her rip. Sorry no Big Car sound except the blow off value. As far a tires go 315's in the rear .. but be very careful selecting wheels .. you want to get 315's and even lose weight from the stock set up.. there are light wheels outs there.. that will make a BIG difference.. alot of people are JUST looking for style and not considering wheel weight.

[speedster]

Originally Posted by Corsec

OK guys a few quick opinions if u please. I have pretty much sold myself on a twin turbo setup, gonna upgrade the clutch-looking real hard at the ATC Twin, want to upgrade the exhaust, and will be making a few changes to the springs and sways to get rid of the roll. I am targeting 600-650 rwhp. I really like the idea of the turbos when going for this much hp on a stock motor, just seems like the longevity might be a little better since I won't have to carry the extra hp to make up for a crank driven blower. But as silly as it may sound, one of my biggest hold ups is the fact that I don't know what it will sound like. Can you still get the muscle car rumble from a turbo charged motor? When I started the research I was very excited about getting that custom cam lope, not gonna happen with a turbo, right? I have watched several of the youtube videos of the twin turbos running, its just very difficult to tell what startup and idle sound like. So any of you TT owners out there that could let me know how they sound on the low end? I live in OK and we have no inspections on our cars so I can go with pretty much any kind of exhaust I want so any input in that direction would be appreciated, right now the car has no performance upgrades just a muffler delete. I don't necessarily want a loud car, just a car that when it starts up you know you have awoken a beast :-) Last question, I have a 2ss rs, are the stock tires enough for this much HP on the low end or do you need to change wheels? The car is just a fun driver and might go to the drag strip a couple times a year. Thanks for any input!

This is my .02 :

It looks like you would like a TT system. I will preface this by saying at the power levels you are looking for you can use any good PD supercharger or TT's. You are pushing the stock short block pretty hard at that level. Meth Injection is a good insurance policy. You will need a better fuel delivery system. In addition your stock tires will in no way handle that kind of power on a launch. But...when you add stickier tires, you WILL need to upgrade your drivetrain - Clutch, Axles, etc. You will also need to upgrade your suspension (at least the bushings) because you will not be able to get your new found power to the ground.

As far as the TT, turbos do quiet down the exhaust tone and they have some effect on the exhaust resonance. In fact with turbos mufflers are pretty much not even needed on an LS motor. Now with regards to sounding like a muscle car, you will have to change the camshaft to one with at least longer duration and possibly a tighter LSA if you want "the cam lope". The trick to this is that forced induction likes a wider LSA, not a tighter one. You may actually give up quite a bit of low end torque to get " the sound".

Anyway, it is completely up to you. Write down the pros and cons of what you really want. Above all - be honest with yourself. You will be happier with your decisions if you are.

[Jchaluja]

+1, I will take a video of my car starting later today and added to the a post to see if you like it....

[Sack Rat 2SS]

TT powered cars do not like nor need radical cams. Something like the LS9 cam used in the ZR1 might be a good start for openers. Plus they are very quiet. Much plumbing needed with TT's such as air to and from intercoolers, oil to and from turbos, cooling water to and from turbos, oil scavenging from turbos to scavenge pump and to oil pan if low mounted, plus mounting of TT's to exhaust and from turbos out back of car. Also, it is wise to add an additional engine oil cooler. Hardly any of this with PD blowers. All will need better fuel delivery sys as mentioned above and injectors etc. Quicker and easier to return car back close to stock with PD blowers later if you want. Still want to do the TT's over the PD?? It is great to have choices though.

[IPSjeff]

You can add a cam to the TT Kit if you want a "Muscle-car" sound but you will just have to pull the boost back a bit to avoid making too much power.

Add a cam to our TT kit at 8psi =

Now, with forged / lower compression pistons and/or less boost to keep the power in the 600-650rwhp range and you can easily have the best of both worlds in power / sound dept.
Jeff

[IPSjeff]

I am trying to find idle vids of TT cars with our "Boost" cam installed and haven't found a whole lot. This isn't the best (Sound) but you can kind of hear it a little:





EDIT: This car has the same cam just with a Ysi blower instead of turbos:

[Corsec]

Wow guys, thx so much for all the input! I Amon the road today, but will have time to read for detail tonite. Thanks!

[Jchaluja]

Ok, I took a little vid of my car starting with the key fob and then from the inside so you can hear it....it really sounds like stock, you can hear the turbos wistle a little bit....

[SILVER BULLITT]

tt ftw

[Failsafe Performance]

I vote twins!

As far as exhaust sound, with turbos, you have two relatively major restrictions in the exhaust (the turbine housings) which will definitely mellow out your exhaust note, but don't worry- it will still scream when you want it too, especially if you dump your wastegates to atmosphere

One thing to factor in is installation costs between the two. Twin turbo setups are generally more complicated, and take longer to install. Supercharger systems are pretty simple compared to a twin turbo setup.

At the end of the day, I prefer turbos. The sound of them spooling up when you get on it, mixed with the huge rush of torque as they start to boost just can't be beat, IMO.

-Chris

[Richy_Rich]

Pending a TT kit myself, but am stuck on cam and head work to compliment an adjustable boost system. Of course the drive train and associated support eqpt. will get some upgraded attention; but what about that cam and headwork mystery?

[Richy_Rich]

Originally Posted by tony1

Just get your TT and crank it up to 650whp strap on your helmet and let her rip. Sorry no Big Car sound except the blow off value. As far a tires go 315's in the rear .. but be very careful selecting wheels .. you want to get 315's and even lose weight from the stock set up.. there are light wheels outs there.. that will make a BIG difference.. alot of people are JUST looking for style and not considering wheel weight.

Exaclty, wheel weight is key.