Chad Byers
New Member
- Joined
- Jan 20, 2004
- Messages
- 2
Hello Guys,
Here are some vehicle specs so you know what I have to work with:
78 Nova
3,750 lb race weight
Mikes Ultimate Vasco TH400
Currie Ford 9 with 3.50 gear
Hoosier Slick 29 tall by 12 wide
Dart Big M Block 4.50" bore
Callies Pro Mag 4340 Crank 4.250"
Oliver Billet Rods 6.385"
JE -20 CC Dish Pistons 8:5:1 CR
All Internally Balanced ATI Super Dampner
Jesel Belt Drive
Induction:
Accufab 90 MM throttle Body
Holley EFI Rectangular Manifold
Holley Fuel Rails, MSD 96 PPH injectors
Weldon Pump
Brodix BB2+ M2 Race System Heads
Fully Cnc'd 2.30 intake valve, 1.88 exhaust
Cometic Head Gaskets
Cam Specs:
Comp Cams Solid Roller
668 intake @50 260
672 exhaust @50 270
114* LSA
ATI Procharger D-3M
Cog Pullies
18 psi of intercooled boost at 1500 ft elevation
Spearco air to air intercooler 1500 cfm
FAST Sequential Fuel Injection with wide Band O/2 option
MSD 2345 Sitributor, firing both injectors and ignition
MSD 6AL Box
With the above combo the car has made 975.6 SAE rear wheel hp. This is on a mild tune with good fuel, through the mufflers. I have raced the car at Albuquerque NM elevation 5,500 feet, car made 15 psi. Et was a 9.40 at 148.80 mph. That was on the old tune which made 910 SAE rwhp. Car should do 9.20's at Abq now. As of now the car is the 3rd fastest street car in the state of NM fwiw.
I have been considering going over to a turbo setup as my ATI procharger is maxed out. The impeller reaches redline at 7000 rpm. Not to mention its taking over 100 hp just to drive the supercharger. A turbo on the other hand would not have such a high parasitic load.
On a application such as this what size turbo would you need to make 25 psi of intercooled boost? Also what manufacture do you all prefer to deal with? I assume a single turbo would be the way to go? Most PSCA classes limit you to one power adder.
I noticed turbonetics offers a Thumper turbo that is suppost to be a better design according to them. Do any of you use these products? How about Precesion Turbo?
My Air to air intercooler will it be large enough at 1500 cfm? Also it has 3 inch inlet and outlet. I have room to put 4 inch necks, is this needed?
My current comp cam specs will they work? I have heard turbo cams are a bit different. If so how are they?
Financially what would it take to do a project like this? Would stainless be needed or could you get away with coated mild steel?
There are two guys here in NM that running the turbo's, both are mustangs. One is a 327 cid engine making 1050 to the wheels uncorrected at Albuquerque's 5000+ elevation. And the other is a 380 cubic inch ford making 1150 uncorrected as well. Both of these guys are running the low 8's uncorrected. I know the power potential is just so much more over the centrifugal, not to mention the broad torque curve.
Any help would be appreciated. I would like to know what to expect in a project such as this,
Respectfully,
Chad Byers
Farmington NM
Here are some vehicle specs so you know what I have to work with:
78 Nova
3,750 lb race weight
Mikes Ultimate Vasco TH400
Currie Ford 9 with 3.50 gear
Hoosier Slick 29 tall by 12 wide
Dart Big M Block 4.50" bore
Callies Pro Mag 4340 Crank 4.250"
Oliver Billet Rods 6.385"
JE -20 CC Dish Pistons 8:5:1 CR
All Internally Balanced ATI Super Dampner
Jesel Belt Drive
Induction:
Accufab 90 MM throttle Body
Holley EFI Rectangular Manifold
Holley Fuel Rails, MSD 96 PPH injectors
Weldon Pump
Brodix BB2+ M2 Race System Heads
Fully Cnc'd 2.30 intake valve, 1.88 exhaust
Cometic Head Gaskets
Cam Specs:
Comp Cams Solid Roller
668 intake @50 260
672 exhaust @50 270
114* LSA
ATI Procharger D-3M
Cog Pullies
18 psi of intercooled boost at 1500 ft elevation
Spearco air to air intercooler 1500 cfm
FAST Sequential Fuel Injection with wide Band O/2 option
MSD 2345 Sitributor, firing both injectors and ignition
MSD 6AL Box
With the above combo the car has made 975.6 SAE rear wheel hp. This is on a mild tune with good fuel, through the mufflers. I have raced the car at Albuquerque NM elevation 5,500 feet, car made 15 psi. Et was a 9.40 at 148.80 mph. That was on the old tune which made 910 SAE rwhp. Car should do 9.20's at Abq now. As of now the car is the 3rd fastest street car in the state of NM fwiw.
I have been considering going over to a turbo setup as my ATI procharger is maxed out. The impeller reaches redline at 7000 rpm. Not to mention its taking over 100 hp just to drive the supercharger. A turbo on the other hand would not have such a high parasitic load.
On a application such as this what size turbo would you need to make 25 psi of intercooled boost? Also what manufacture do you all prefer to deal with? I assume a single turbo would be the way to go? Most PSCA classes limit you to one power adder.
I noticed turbonetics offers a Thumper turbo that is suppost to be a better design according to them. Do any of you use these products? How about Precesion Turbo?
My Air to air intercooler will it be large enough at 1500 cfm? Also it has 3 inch inlet and outlet. I have room to put 4 inch necks, is this needed?
My current comp cam specs will they work? I have heard turbo cams are a bit different. If so how are they?
Financially what would it take to do a project like this? Would stainless be needed or could you get away with coated mild steel?
There are two guys here in NM that running the turbo's, both are mustangs. One is a 327 cid engine making 1050 to the wheels uncorrected at Albuquerque's 5000+ elevation. And the other is a 380 cubic inch ford making 1150 uncorrected as well. Both of these guys are running the low 8's uncorrected. I know the power potential is just so much more over the centrifugal, not to mention the broad torque curve.
Any help would be appreciated. I would like to know what to expect in a project such as this,
Respectfully,
Chad Byers
Farmington NM