Vortech SC and Hyland Intercooler?

Dominick99GT · 12-27-2000, 06:05 PM

I have a 99 GT Conv. with a Vortech SC and a Hyland intercooler. When it goes into by-pass it makes and really awful loudf sound,(like a turkey gobbling), any suggestions?
Also: What can I do to get the wheels to not spin when I take off? Currenly I have 295/35/18 tires and I have a 3.73 gear.
I will put what ever it takes into my car to make it better I just need some good advice.
Thanks
Dominick

Hammer · 12-28-2000, 11:13 AM

You're going to have a hard time putting that much torque to the ground while using 3.73's. I'm probably not running your numbers, but I still have a heck of a time launching on 3.73s. The gear set is great, but you really have to know how to launch to get the most out of them. Some after market upper and lower control arms might help a bit, but mostly, the key is going to be a set of drag radials and lots of time at the track...

------------------
"The Yellowjacket"
1998 Mustang GT
13.97@103
"Traction Impaired" or "Nitto Needy"

97snakedriver · 12-28-2000, 12:26 PM

The first thing I would do is chassis bracing. Maximum Motorsports, Griggs, Kenny Brown, ect. Subframe connectors at least, other braces if your budget allows. A good set of subframe connecters will run $100-$150, and any number of places can weld them in (don't just bolt them on) for you for pretty cheap. Just make sure the weight of the car is on the tires when they do.

Suspension would be next. A blown 99 GT will be making a goodly amount of torque. The stock control arms and bushings wouldn't brake very easily, but they will deflect all over the place, producing wheel hop, excessive spin, and just plain hard to control. You have two basic choices:

1. Replace your control arms and bushings with heavy duty ones, such as Steeda.
2. Replace the 4 link with something else. Griggs makes 3 link suspensions which would work extremely well for you. Both alternatives would work extremely well for you, but I would go one or the other before launching a heavy supercharged convertable on drag radials or slicks.

Here the addresses:
http://www.steeda.com/
http://www.maximummotorsports.com/
http://www.griggsracing.com/

Considering the power you're making and the weight of your car, I think some upgrade is in order. But like Hammer said, the most important part is the one behind the wheel. But have fun in that beast!

------------------
AIM: Some97Snake

97snakedriver · 12-28-2000, 12:28 PM

BTW: I've never heard a pop off valve that sounded like a turkey. It may be sticking or flapping around.

SMOKE · 12-29-2000, 01:11 PM

Putting that much power to the ground can be tricky but snake has it right ... suspension.

I believe that should always be the first mod because usually you end up producing more power than factory/stock.

Practice and suspension mods ... I concur.

Sorry can't help on the Vortec bypass valve.

------------------
SMOKE Personalized Black 98 SVO Blown ROUSH
without the side exhaust

Dyno 303rwhp 338rwtrq Still working out the kinks!!!

12-27-2000, 06:05 PM	#1
Dominick99GT Registered Member Join Date: Dec 2000 Location: Marmora, NJ Posts: 2	Vortech SC and Hyland Intercooler? I have a 99 GT Conv. with a Vortech SC and a Hyland intercooler. When it goes into by-pass it makes and really awful loudf sound,(like a turkey gobbling), any suggestions? Also: What can I do to get the wheels to not spin when I take off? Currenly I have 295/35/18 tires and I have a 3.73 gear. I will put what ever it takes into my car to make it better I just need some good advice. Thanks Dominick

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12-28-2000, 11:13 AM	#2
Hammer AKA "Dr. Evil" Join Date: Feb 1999 Location: South Fork Ranch Posts: 1,721	You're going to have a hard time putting that much torque to the ground while using 3.73's. I'm probably not running your numbers, but I still have a heck of a time launching on 3.73s. The gear set is great, but you really have to know how to launch to get the most out of them. Some after market upper and lower control arms might help a bit, but mostly, the key is going to be a set of drag radials and lots of time at the track... ------------------ "The Yellowjacket" 1998 Mustang GT 13.97@103 "Traction Impaired" or "Nitto Needy"

12-28-2000, 12:26 PM	#3
97snakedriver Registered Member Join Date: May 1999 Location: Blacksburg, VA Posts: 1,526	The first thing I would do is chassis bracing. Maximum Motorsports, Griggs, Kenny Brown, ect. Subframe connectors at least, other braces if your budget allows. A good set of subframe connecters will run $100-$150, and any number of places can weld them in (don't just bolt them on) for you for pretty cheap. Just make sure the weight of the car is on the tires when they do. Suspension would be next. A blown 99 GT will be making a goodly amount of torque. The stock control arms and bushings wouldn't brake very easily, but they will deflect all over the place, producing wheel hop, excessive spin, and just plain hard to control. You have two basic choices: 1. Replace your control arms and bushings with heavy duty ones, such as Steeda. 2. Replace the 4 link with something else. Griggs makes 3 link suspensions which would work extremely well for you. Both alternatives would work extremely well for you, but I would go one or the other before launching a heavy supercharged convertable on drag radials or slicks. Here the addresses: http://www.steeda.com/ http://www.maximummotorsports.com/ http://www.griggsracing.com/ Considering the power you're making and the weight of your car, I think some upgrade is in order. But like Hammer said, the most important part is the one behind the wheel. But have fun in that beast! ------------------ AIM: Some97Snake

12-28-2000, 12:28 PM	#4
97snakedriver Registered Member Join Date: May 1999 Location: Blacksburg, VA Posts: 1,526	BTW: I've never heard a pop off valve that sounded like a turkey. It may be sticking or flapping around.

12-29-2000, 01:11 PM	#5
SMOKE Old School ROUSH Join Date: Nov 1999 Location: Stockbridge, GA Posts: 531	Putting that much power to the ground can be tricky but snake has it right ... suspension. I believe that should always be the first mod because usually you end up producing more power than factory/stock. Practice and suspension mods ... I concur. Sorry can't help on the Vortec bypass valve. ------------------ SMOKE Personalized Black 98 SVO Blown ROUSH without the side exhaust Dyno 303rwhp 338rwtrq Still working out the kinks!!!