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Anonymous
Guest
i have a 82 f100 pickup short bed step side .300 inline how hard to turbocharge and get 12second quarter mile? 
2 questions, 2 answers:
1) Easy enough if you are or have access to a good fabricator
2) Not on this planet. Seriously, thet's extremely quick for a fairly heavy vehicle with terrible weight distribution and the aerodynamics of a brick.
1) Easy enough if you are or have access to a good fabricator
2) Not on this planet. Seriously, thet's extremely quick for a fairly heavy vehicle with terrible weight distribution and the aerodynamics of a brick.
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Anonymous
Guest
The 3rd question is how much money....
I dont think one can fit that much cash in ones wallet to do womething like that...unless they came out with 1000 dollar bills now...
I dont think one can fit that much cash in ones wallet to do womething like that...unless they came out with 1000 dollar bills now...
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Anonymous
Guest
ok I will sell the truck,and get a mustang or a maverick.somthing below 3000 lbs.I would like to turbo a car that will run 12s in the 1/4 mile. I would like to be able to street it daily if i choose. Can this be done with an inline 6 or do i have to go with a V8 ?
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Anonymous
Guest
it sure would take a lot less cash with a v8 than it would to do it with a 300-6.
As for running a 12 sec quarter mile with a truck using a 300-6, they are just big pesimists lol
. Anything is possible with enough money. You could build your motor to probably around 220-250 hp and 350 ft lb torque then add a bunch of boost and there is your 12 sec quarter mile pass.
Well you would still need ladder bars/traction bars or a 4 link and big racing slicks to pull it off along with a decent transmission and rear gears but, i think with a fully built up 300-6 turbo charged you could see enough horsepower and torque to get a 4000+lb truck down a 1/4 mile strip in 12 secs.
As for running a 12 sec quarter mile with a truck using a 300-6, they are just big pesimists lol
. Anything is possible with enough money. You could build your motor to probably around 220-250 hp and 350 ft lb torque then add a bunch of boost and there is your 12 sec quarter mile pass. Well you would still need ladder bars/traction bars or a 4 link and big racing slicks to pull it off along with a decent transmission and rear gears but, i think with a fully built up 300-6 turbo charged you could see enough horsepower and torque to get a 4000+lb truck down a 1/4 mile strip in 12 secs.
The stock 300 pistons are not up for more than 6 psi, and high boost will kill it dead. If your engine is in good stock conditon, but rebuilt with just good rod bolts, bearings, rings, crank, valves, better than stock cam and good quality bores, you can then add a good set of 390 pistons or very good aftermarket pistons. An EFI 4.9 engine will have less bore wear than a 300 carb engine, but any babied low mile 300 or 4.9 should be able to rebuilt without having to rebore the cylinders, and line bore the crank tunnel and refit the cam bearings. Just a hone out, and check for out of round and wear, you can do a rebuild fine.
The Aussies run low 11's on 4.0 OHC and 250 x-flow engines that are just stock engines from smashed taxis or old company cars. They rip them appart, add good replacement blister pack bearings, gaskets and good pistons and rod bolts and valves, then boost the living daylights out them!!!.
They are in cars in the 3500 to 3800 pound level, with autos and all power options. Some still run gearing in the 3:1 or even 2.77:1 range. It's a delight to watch these old 1980's dinosaurs kick ricers butts.
With your 300's, you've got another 20% more capacity, a better engine block, crank, rods and bore to stroke ratio. A 4200 to 4600 pound truck could do low 11's with very close to stock gear. Heck, a rebuilt AOD will see 850 hp or a C6 will see 600 hp without any major issues. You've got 9, 9.75 and 8.8 inch diffs the envey of the western world, and any ratio you want, you can get. We don't have that luxuary in NZ or Australia. Nor do we have Offy intakes, dual out cast iron headers, nor the space around the engine to run all the turbo plumbing like you do. We have to fight the confines of spring towered unibody frames, and make up exhasts out of boiler tube and find old C4 gearboxes with rare six cylinder bell patterns. You got it made. I hate ya!
Any engine costs. The trick with a turbo 300 is that its no cheeper than V8's but its like manic street prechers. They are no fun unless they are on fire and being moved by some irrestistable force. Anyone can buy and abuse a V8, but a rebuild six with a hair dryer is burning with fire and brimsotne, not pooring out the same slurry you get from everyone else is doing.
And turbo charging is a American as Covair Spyders and Olds Jet fires, and these days, there is more expertise around. Copy Does 10'S, and keep moderate restraint on the bills. Spend on rebuilding things yourself, and gain a skill.
One other thing. A 351, 400 or 460 will always use 351, 400 or 460 cubes of fuel. A 12 pound boost turbo 300 will cruise like a 300, then behave like a 580 cube engine when stired.
The Aussies run low 11's on 4.0 OHC and 250 x-flow engines that are just stock engines from smashed taxis or old company cars. They rip them appart, add good replacement blister pack bearings, gaskets and good pistons and rod bolts and valves, then boost the living daylights out them!!!.
They are in cars in the 3500 to 3800 pound level, with autos and all power options. Some still run gearing in the 3:1 or even 2.77:1 range. It's a delight to watch these old 1980's dinosaurs kick ricers butts.
With your 300's, you've got another 20% more capacity, a better engine block, crank, rods and bore to stroke ratio. A 4200 to 4600 pound truck could do low 11's with very close to stock gear. Heck, a rebuilt AOD will see 850 hp or a C6 will see 600 hp without any major issues. You've got 9, 9.75 and 8.8 inch diffs the envey of the western world, and any ratio you want, you can get. We don't have that luxuary in NZ or Australia. Nor do we have Offy intakes, dual out cast iron headers, nor the space around the engine to run all the turbo plumbing like you do. We have to fight the confines of spring towered unibody frames, and make up exhasts out of boiler tube and find old C4 gearboxes with rare six cylinder bell patterns. You got it made. I hate ya!
Any engine costs. The trick with a turbo 300 is that its no cheeper than V8's but its like manic street prechers. They are no fun unless they are on fire and being moved by some irrestistable force. Anyone can buy and abuse a V8, but a rebuild six with a hair dryer is burning with fire and brimsotne, not pooring out the same slurry you get from everyone else is doing.
And turbo charging is a American as Covair Spyders and Olds Jet fires, and these days, there is more expertise around. Copy Does 10'S, and keep moderate restraint on the bills. Spend on rebuilding things yourself, and gain a skill.
One other thing. A 351, 400 or 460 will always use 351, 400 or 460 cubes of fuel. A 12 pound boost turbo 300 will cruise like a 300, then behave like a 580 cube engine when stired.
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Anonymous
Guest
itisrck,
What part of Spring?? My family is in the Spring-Tomball area.
My '84 Mustang has a turbo 200....I have some fuel delivery bugs that need to be worked out, but I know I'll end up in the high 12's eventually.
What part of Spring?? My family is in the Spring-Tomball area.
My '84 Mustang has a turbo 200....I have some fuel delivery bugs that need to be worked out, but I know I'll end up in the high 12's eventually.
By my estimates, it would take almost 400 hp to the rear wheels to get a 4000 lb truck into the high 12's. That's with good traction.
Could be done, easiest with a turbo. All you need is $$$ and some ingenuity.
Could be done, easiest with a turbo. All you need is $$$ and some ingenuity.
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Anonymous
Guest
I have been thinking about doing something like this in a few years. There are more than a few 400+ hp ford 2.3 turbos so I don't see why it couldn't be done with a 4.9 turbo. Granted, the head is not crossflow and it would probably be spinning 1500 rpms less than a 2.3, but I think that 114% more displacement should make up for that. Just built a sturdy 300 with forged pistons, lower compression and good rod bolts, possibly rods and blow on it hard! A 4x4, 400hp I-6 turbo, mid 90s f-150 with AC just might be my dream truck. If I could just get 20+ mpg in such a truck... 8)
A turbo engine is the best economy prospect. It's an engine which has a need for a vast amount of mixture variation because the boost level will create a 580 cube engine out of a stock 300 when under 12 pounds of boost, but at part throttle, its just a 300 cube engine.
When operating under full bosst, a 400 hp turbo uses as much fuel as a 400 hp naturally aspirated or supercharged engine.
Under part throttle, a turbo engine is under little boost, and can be tuned to be very lean. A supercharged engine is always making the engine pump more air unless it is clutched into the engine like the Castlemain Rod Shop SC14 conversion my mate uses on his GM 3800 engined Holden.
I've seen compelling evidence that Turbo RV's and certainly mobile homes, are more economical under part throttle with a turbo, and are even better under steep inclines than stock engines.
When operating under full bosst, a 400 hp turbo uses as much fuel as a 400 hp naturally aspirated or supercharged engine.
Under part throttle, a turbo engine is under little boost, and can be tuned to be very lean. A supercharged engine is always making the engine pump more air unless it is clutched into the engine like the Castlemain Rod Shop SC14 conversion my mate uses on his GM 3800 engined Holden.
I've seen compelling evidence that Turbo RV's and certainly mobile homes, are more economical under part throttle with a turbo, and are even better under steep inclines than stock engines.
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