Turbo 300

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I was kind of curious, is there a turbo for the 240/300? You guys talk about small blocks, but I was keeping an eye out for BB, and i don't see any.

-How do I get one?
-How much money?
-What are their dimensions?
-What kind of boosts could I expect?----This would be a relatively internally stock, off road engine. I expect headers, four barrel, 240 head...
 
Oh yeah, just to quell confusion, it is not for my Galaxie. It is for a '49 Jeep pickup.
 
ALL the turbos on here are home built setups. if you are wanting a turbo kit you are kinda on your own.

as far as size what are you looking to do with it? rock crawling? mud bogs?
 
Well, it would be a mud/Baja cross. I don't intend to go Baja, but it would be cool. I am not into rock crawling.
 
Depends. Are you lookin for snappy throttle response or mega power? The 300 is a torque king, a large turbo would suit it juuuuuust fine for makin unGODly amounts of torque, but if your lookin for somethin that has a quick snap of power, then a smaller turbo will be what your lookin for. Drag racers like bigger turbos to make more power, but they take a bit to spool. Road racers like little turbos cause they spool quick out of a corner or on small back straights. its all about where and how much power you wanna make. If it were to blast thru mud holes, ide go bigger for more grunt...but then again, Im a power hungry nut lol (plus big turbos sound kooler lol)
matt
 
Well, good question. I would like good power. It needs good torque. So, I suppose a large turbo.
What do you reccomend when you make a turbo. Do you cannabolise a turbo from something else, or do you make one from scratch? How do you reccomend it is installed? Is it something you can mount to the top of the carb?
Oh yeah, i should ask, what is the difference between a turbo and a supercharger? :oops:
 
Ide look at a garrett or an old Holset off a cummins turbo deisel. Some might say its too big but I knew PLENTY of people in the 2.3T world runnin them and makin ungodly power. I liked my t3/t4 hybrid on my 2.3 but it would prolly be a bit small for your 300. best thing to do is talk around, look at sizes and efficiency etc, best bet would prolly be a T4.
Matt
 
I'd go for a Holset HX35 or even a HX40.

I'm going to be running an HY35 on my Stratus 2.4L powered Neon with decent spool (3500ish). The HX35 is just a tiny bit bigger so on a 300 would spool quickly. The HX40 is a decent step up but will spool slower.

The word is the HY35 is good for 400 wheel horsepower, the HX35 is good for 450 and the HX40 for over 500. Big enough? :)

I'd love to do a turbo 300 myself someday and will be considering the HX40. Looking forward to the new aluminum head with the combo too.
 
Are these turbos or superchargers? What would be better for my application? Where can Find the Holsets used? And, when you say "good for 450hp" does that mean it will add that much when you put it on anything, or is that for a stock 300. If it would be worth that much i could just leave the Flattie in the truck. I could kick my friends *ss. He has a 92 Chebbie pickumup truck.

Thanks for the advice and putting up with my stupid questions,
Adam
 
Do yourself a very big favor:
Read Turbochargers by Hugh MacInnes for basic theory and a lot of admittedly quite dated info about turbos as applied to carbs and Maximum Boost by Corky Bell for state of the art stuff and EFI applications.

It's not that people aren't willing to answer your questions but you really need to have an independent understanding of the technology.
 
There are some online calculators that will get you close to the right compressor section if you input data. Usually they want target HP, min boost @rpm, max boost @rpm, etc. Here is one that I used: www.squirrelpf.com . Click on Tools, then calculator. This is what it outputs when you pick a particular turbo model from the list:
http://picasaweb.google.com/superchief4 ... 0364703794

http://picasaweb.google.com/superchief4 ... 0364703826

Turbine sections are a little harder to pick. I read through the archives on turbomustangs.com to get an idea of how different turbines respond to engines. I think a tangential, divided housing with a A/R of around .68-.81 will spool well below 3k rpms and still flow enough at high rpms to keep the pre-turbine backpressure low.
 
DebateGeek":22gawxhb said:
Are these turbos or superchargers? What would be better for my application? Where can Find the Holsets used? And, when you say "good for 450hp" does that mean it will add that much when you put it on anything, or is that for a stock 300. If it would be worth that much i could just leave the Flattie in the truck. I could kick my friends *ss. He has a 92 Chebbie pickumup truck.

Thanks for the advice and putting up with my stupid questions,
Adam
Click to expand...

BTW, when I say good for 450 I mean, maximum wheel horsepower the engine will make with the turbo. There are many many factors though. Do as these guys say and read up on the subject. Turbo's make for fascintaing reading but are even better when you apply what you've learned...
 
An HX40 will support 450hp on a diesel with the wastegate at 40psi. That's on top of the average c/r of 17:1. Face it, diesels are pumping segnificantly more are per stroke then our inline gassers can handle for the same displacement.

Yes you can use it, but your not going to happy with it. If your looking for something for "dyno days" or long highway cruising, maybe. If your looking for something to help with launch power and quick acceleration, not at chance.

Can they be modified to work? Yes, but you'll spend more on dependable modification then you would on the right turbo to begin with.
 
Learn to read a turbo map and make your own choices based on your own uses and needs. In general with turbos, smaller is better in the real world, larger is better only at the track or on a dyno.

For a 300, the general consensus seems to be a small trimmed T04 or equal is about right. For a primaarily strip oriented vehicle you'd want something larger but it would give you very little on the street. Off-road? You need to define in what RPM range you want the engine to be maximized If you're looking at building a tow pig where you need nearly instant boost at low RPM and don't care about anything over 3500 a T03 with Super 60 trim would work nicely but it will not make big power like the T04. A T03/04 hybrid might also be useful, it all depends on what you are looking for. There is no universal answer
 
Well, thank you all very much for your input. I will get some magazines on the subject as soon as i find them. You have all been extremely helpful.
 
This is where I started my turbo project, and I hate to say it, but you HAVE TO do the calculations to get it right. No if's, and's, or but's about it and it will help you understand the turbo basic a little better. This way you can actually look at any compressor map and find the right turbo for you and what you intend for your engine.
Look here and go under the primers section and then to the turbo sizing primer:

www.mrcontrols.com

Just use your motor specs and the boost levels you intend inplace of theirs, a calculator will be of great help here.

Good luck.

Kirk
 
Thanks a million. It never occured to me that those were books and not magazines. Duh, one author. Any way, I may have the time to pick some of those books up tonight. That calculator and that primer are cool. Now, if only I knew what half of that meant. Leave it to us Fifteen year olds. We know everything until we have to prove it. Oh well, onword.

Thanks a bundle,
Adam
 
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