Why a twin turbo over a paxton for SRT10

[King RT10]

If you are going to stay at 700 rwhp to 800 rwhp.
Which is better and why?

What is the cost of a twin turbo setup in this rwhp range?

Thanks

[John Myrick]

Different people may have different objectives with their cars, but here's a few issues to think about:

Turbo car will typically be much quieter than supercharged car.

Turbo boost level is much easier to adjust to take advantage of high octane fuel or reduce to handle low octane fuel.

Turbo will typically make greater torque at lower engine speeds than centrifugal supercharger.

There are probably other advantages to turbochargers vs centrifugal superchargers, but these were the first few that I thought of.


$25,000 to $30,000 should be sufficient to budget for a twin turbo package.

[SRTRICKY]

Or you can go to a place like velocity and get a polished paxton supercharger put on making 700 rwhp for 9k

[John Myrick]

Or you can go to a place like velocity and get a polished paxton supercharger put on making 700 rwhp for 9k

Says the guy who wanted the RSI TT kit...

[SRTRICKY]

Says the guy who wanted the RSI TT kit...

But doesn't have the money to get it (the jealously was kicking in when I wrote that post) lol

[Lee00blacksilverGTS]

Why not just call Jason Heffner and talk it over. There are very few people that know more about the answer to the question you asked.

www.heffnersperformance.com

[DSR207]

Turbo car will typically be much quieter than supercharged car.

False. Todays superchargers are almost silent.

Turbo boost level is much easier to adjust to take advantage of high octane fuel or reduce to handle low octane fuel.

False. With VEC2, it takes less than one minute

Turbo will typically make greater torque at lower engine speeds than centrifugal supercharger.

False. No turbo lag with superchargers

$25,000 to $30,000 should be sufficient to budget for a twin turbo package.

True, superchargers cost one third that amount.

If you are staying below 1000rwhp superchargers are the logical answer.

[NOMERCY]

I chose a Twin Turbo Stroker. I wanted stupid power and an SC just doesn't make the numbers.

[DSR207]

NOMERCY, is heffiner changing the cast pistons or doing any other mods to the engine and did they say how many rwhp you are going to end up with ?

[Shelby3]

Turbo car will typically be much quieter than supercharged car.

False. Todays superchargers are almost silent.

NOPE, THIS ONE IS TRUE. THE EXHAUST NOTE ON A TURBO CAR IS MUCH QUIETER THAN A BLOWER CAR. THE REFERENCE WAS TO THE CAR NOT THE POWER ADDER ITSELF.

Turbo boost level is much easier to adjust to take advantage of high octane fuel or reduce to handle low octane fuel.

False. With VEC2, it takes less than one minute

TRUE HERE ALSO YOU CAN ADJUST THE BOOST ON A TURBO FROM INSIDE THE CAR BY TURNING A KNOB, WITH THE VEC YOU HAVE TO STOP THE CAR AND OPEN THE HOOD.

Turbo will typically make greater torque at lower engine speeds than centrifugal supercharger.

False. No turbo lag with superchargers

TRUE AGAIN HERE. LOOK AT ANY DYNO SHEET BETWEEN A TURBO AND A CENTRIFUGAL BLOWER AND THE POWER UNDER THE CURVE TIPS CLEARLY IN FAVOR OF THE TURBO.

$25,000 to $30,000 should be sufficient to budget for a twin turbo package.

True, superchargers cost one third that amount.
YOU GOT THIS ONE CORRECT

If you are staying below 1000rwhp superchargers are the logical answer.

[NOMERCY]

Yes. I will have three programs. We are expecting mid 800 on 91 octane, around 1000 on 100 octane and something really stupid on 116. I am also getting an AEM engine management with some traction control ...

[Dave T (BADVENM)]

NOMERCY, when are you expecting your Heffner car back? I'd love to see it when you do!!

[Viper X]

No Mercy,

You will need the traction control and some really sticky tires, and a Qauife, and a stronger clutch, and a blue printed trans and larger, stronger CV / half shafts, and etc, etc, etc...... but it should be fun when you get the bugs out.

[FLYNLO]

No Mercy,

You will need the traction control and some really sticky tires, and a Qauife, and a stronger clutch, and a blue printed trans and larger, stronger CV / half shafts, and etc, etc, etc...... but it should be fun when you get the bugs out.

Viper X, what type of upgraded clutch do you have on your car at the moment? I will be sending my car to velocity motorsports for the SC800 package to make 800 crank horsepower. I will be purchasing a quaife soon, however, im not sure about clutch brands and their availability.
thanks

oh, one more thing, what kind of wheels and tires are you running with your setup?

edit.."N/M i see you have an RPS clutch, I still would like to know what wheels and tires you are running

[MaxedGTS]

Supercharger sound alone is exciting.

Drive through a parking lot with the sc and crowds come running to see a bad aZZ car.

Lift the hood for the IN your face experience. sc
knocks 'em dead every time.

Predictable sc power. Priceless!!!!!!!!!!