Which turbo for a 500hp 273?

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273

273

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I was thinking of an air wolf headed 360 for my 65 Cuda and looking for 500hp/500lbs-ft, but as I'm dumping $120 for just over 200 miles in my 5.9l Jeep, lucky I live a only couple of miles from work, I don't really need another pig on gas also got 1980 Bronco with a 400.

So I'm think of keeping the 273 and turbo it, for now I'll build the engine and add a turbo/s latter, I was figuring .30 over custom forged flat top piston zero decked and a .35 quench and scat rods added to the factory forged crank, ported out 302 heads and cc'd to give a 9:1cr and a highlift 262ish cam and a airgap intake and for now stock manifolds until the turbo swap. Also before the turbo swap I want to EFI and 5 speed.

I've read a build on a stock 2v ford 4.6l and $500 eBay t76 turbo 9.6 boost got 500hp, I'm assuming that would work with my 273? Looking for pump gas 500/500 hp/tq engine, also what RPM do I want the turbo/s start to come in and at max boost, I'm thinking peak power is gonna be 6000-65000 and a 7000 redline.
 
That or a B/W S400 with a .96 a/r turbine housing. There is one on ebay now new for $600
 
I'm only looking for 500hp at the crank
 
I've been recommended to use Twin T3/T4 any certain Specs and Brand I should be looking for? This will be a street car
 
Do the Math.....and tell me how many CFM.......YOUR 273 is gonna flow before you turbo charge it......and why would you install a $4000 turbo system on a car to increase the power 100 hp/100 ft lbs?

Then.....I am going to tell you


THE PROPER turbo for your setup will make 500 HORESPOWER at the wheels on 7 psi.....which in terms of boost is SToopid low.

You can get a smaller turbo and try to overcome all the adiabatic ineffiencies how ever you choose.......but its gonna boil down to:

YOU NEED 70 Millimeter compressor inducer and a 76-80mm turbine exducer.

Next ?
 
273 said:
I was thinking of an air wolf headed 360 for my 65 Cuda and looking for 500hp/500lbs-ft, but as I'm dumping $120 for just over 200 miles in my 5.9l Jeep, lucky I live a only couple of miles from work, I don't really need another pig on gas also got 1980 Bronco with a 400.
Is $4000 for a turbo system worth 100hp to you?......I only ask because a proper system is worth 300-1000 hp capability on (1) turbo.

So I'm think of keeping the 273 and turbo it, for now I'll build the engine and add a turbo/s latter, I was figuring .30 over custom forged flat top piston zero decked and a .35 quench and scat rods added to the factory forged crank, ported out 302 heads and cc'd to give a 9:1cr and a highlift 262ish cam and a airgap intake and for now stock manifolds until the turbo swap. Also before the turbo swap I want to EFI and 5 speed.



I've read a build on a stock 2v ford 4.6l and $500 eBay t76 turbo 9.6 boost got 500hp, I'm assuming that would work with my 273? Looking for pump gas 500/500 hp/tq engine, also what RPM do I want the turbo/s start to come in and at max boost, I'm thinking peak power is gonna be 6000-65000 and a 7000 redline.
Click to expand...
Properly sized turbo installed.......you want FULL boost below 3000 rpm WOT......and peak Torque will occur at Full Boost RPM.....and peak Horsepower will be at 62-6300ish RPM.

You'll need at least a T4 Frame turbo..... 40mm of wastegate.....and a 50mm blow off valve.

You should consider a intercooling method.....for any boost over
10 psi

500 pump gas hp is a joke........with forced induction.

Honda's do that......:wack:
 
Prine said:
Do the Math.....and tell me how many CFM.......YOUR 273 is gonna flow before you turbo charge it......and why would you install a $4000 turbo system on a car to increase the power 100 hp/100 ft lbs?

Then.....I am going to tell you


THE PROPER turbo for your setup will make 500 HORESPOWER at the wheels on 7 psi.....which in terms of boost is SToopid low.

You can get a smaller turbo and try to overcome all the adiabatic ineffiencies how ever you choose.......but its gonna boil down to:

YOU NEED 70 Millimeter compressor inducer and a 76-80mm turbine exducer.

Next ?
Click to expand...

I'm not against making 500hp at the wheel especially at 7 psi, the 273 in N/A form probably be will be making 250-300hp at the crank
 
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