I've been running draw through with propane for a while now with pretty good results (forklift parts). It sucks a TON of fuel down though. It's just kind of scary to think I'm sucking explosive compressed gas through a screaming hot turbo and some home depot hot tub hoses and toilet accesories, then down the intake. But it's been loyal for 5 years even starting right up in -20F weather. My mounts and adapters are 100% from the plumbing department and it's set up that you can steal ANY bbq tank and drive about 50 miles in a pinch. Not recommended but you can do this relatively safely if there is a gasoline shortage and you have an emergency.

I pray his erratic mind found peace 10 years later lol😂. To be honest one of the best videos i seen on drawn through setups on KZfaq. What a shame none of the tags direct people to the video 😢

Love the simplicity of it. Finally a video that gives me confidence to go and try it

This is a great turbocharging technique that I have not seen in any discussions or videos. Figured that some knowledge on this subject could be shared to inform and give ideas to anyone that would like an easy turbo setup not needing an intercooler or any complicated expensive computer controlled fuel injection systems. Its a great proven reliable way to make turbo power on a very reasonable budget. 

I think - I know this is what youtube needs. Not a rich kid showing off what his parent got him or zinc he doesn hav family every dollar goes to his car. This is probably the best budget video I've seen- minus the cockyness. Great job break in it down too. I wish you the best. You give us dads hope of still building. Solid car/ motor an having. Family. Thanks. Jason.

Ive been tinkering with classic engines for a bit and have wanted to dabble with turbos in more of a vintage vibe.... this is it. I think ive figure out how to run x4 strombergs and twin turbo a classic cadillac in an odd but fun way. Thanks for making this video, glad i found it... now down the rabbit hole i go

Man it's Incredible, how the whole system works, here in Brazil little or hardly you see something like this, I'm Brazilian and I don't understand the English language, but its language, its pronunciation is very comprehensive, I barely needed subtitles, won a subscriber Brazilian Sorry for the translation (Google Translator) Success !!

I love this guy, this is exactly what I needed in my project car 😁

Love the info. I'm on a tight budget and it looks like a draw thru setup is the way to go. I have a 1964 Mustang with the original great running 260 V8. Want to add sone power without the pain of swapping to a 302 like everyone suggests. If you know anything about Fords you know they ain't exactly universal on switching engines and transmissions.

This is exactly what i needed to know for my project car. Thank you for sharing!

Hey thanks for the video. Prior to this I didn't even know what that was I heard someone talk about it being on an 81 trans am. I appreciate you taking your time to explain this. was great help.

thank you for the best simplest explanation I've seen to date.

so glad I found this. it is giving me ideas for my little Toyota 4ac. gonna show people that with time and knowledge you can get performance without having to drop in a more "popular" engine.

Best video on this subject!!! Thx

Hello Mad Matt. Just wanted to say that this video on DRAW through turbocharging has re-inspired me to add some form of "supercharging" to my Slant Six! Your style and instruction is very straight forward and no-nonsense. Very helpful to those who might otherwise be intimidated by such an undertaking. I have been toying with idea of turbocharging for some time. But I was under the impression that turbos and carburetors don't play very well with one another. This notion may have been perpetuated by the crude technology and engineering of turbocharging by auto manufacturers in the late-70's through the early-80's. They seemed to have had reliability issues and disappointing performance despite all of the advertising hype. Your videos have changed my perspective. I'm sure many other of your subscribers have felt the same way.It seems to me, that basically the Draw-Through arrangement is not all that different than bolting a carb(s) on to of a "traditional" Roots style crank-driven super charger for a similar effect of increasing the PSI of air/fuel mixture into the manifold plenum. The Draw Through configuration seems to me to be a great entry-level experience into the world of Turbocharging. Because of this new-found information that you graciously offered, I am seriously considering "dipping my toe" into creating my forced induction fabrication projectA couple quick questions. How much should someone expect to pay for a used '80-'81 301 Turbo Firebird carburetor (or other GM turbo) 4 bbl. mounting plenum that allows the air/fuel mixture into the turbo inlet? Also, does the carb necessarily have to be above, or at least level height with the intake manifold? The reason I ask is because I might have some vertical space considerations to deal with in terms of clearance issues. My hope is that the draw from the turbocharger would basically force (suck) the air/fuel mixture into the housing without having to be concerned with using gravity for the mixture of a carbureted, natural aspirated configuration. Thanks in advance and keep the great videos coming.

thank you so much for explaining this! couldnt find much info anywhere else online.

Back in the 80's I had a 76 chevelle SS that I did this setup on. A company made a kit that had the turbo, carb intake and adaptor to bolt on top of the intake manifold. The carb wound up where the battery was so I relocated it to the other side. The only tricky part was the exhaust. I recall having to pipe the left side headers over to the right side and Y them together and then into the turbo that sat on the right side behind the carb with a single exhaust pipe coming out of the turbo.. The advantage with Draw through systems is you dont have to mess with the jetting or anything really. Since it's pulling the gas with the air it just pulls more of both in proportion so the mixture can basically stay the same... With forced systems you you have to increase fuel flow to keep up with the air your pushing in there. So these systems can be installed in an afternoon without any tuning other than retarding the timing a bit to prevent detonation. Of course with so many cars being fuel injected now and ECUs thjngs are complicated, but if you get your hands on a carburated car these things are fun. That chevelle was a total sleeper and was so quite since I just had the one pipe into just a bigger stock muffler. So fun smoking all those big cam loud Street rods back in the day. They would take me off the line but the look on their faces when I quietly passed them was priceless.

this video sort of reminds me of my dad teaching me something about cars. thanks, dude!

JESUS THIS VIDEO TAUGHT ME EVERYTHING I NEED TO KNOW ABOUT TURBO-ING MY 83 GTI. Thanks! haha I always thought it was very complicated because I didn't know this was possible, I only knew about blow through. SUBSCRIBED!

almost the same as the banks aftermarket turbo on a 7.3 idi diesel. thanks for describing it so well!

Great explanation. Now we just need a video for nitrous on a carbed setup

VERY cool! And I thought I knew everything. LOL I know those Buick's were capable of being real fast! Keep the info coming. I am enjoying the vids very much!

Nothing wrong with draw through setups people. Indy Cars were doing over 200 miles per hour in the 60s into the 70s with it. At one point there was so much debate over draw VS blow, that even A.J. Foyt used upstream and downstream fuel injection in his FOYT engines, and was one of the fastest out there. I had a 'new 79 4cyl Turbo Mustang Pace Car, that I tuned and tweaked with 22lbs of boost, ethanol through the top of my carb, for extra charge cooling, and I smoked almost everything on the freeway from Berdoo to Long Beach. I could run with a Carrera until I ran out of gears, I only had a 4 speed BUTTTT it would get me to 151.... according to the CHP ;) .

This is soo amazing! Helped out a lot as it is very hard to source parts the country I live in. Thanks a a lot!!!

It's like Rickey Bobby I don't know what to do with my hands. I like your videos man.

Excellent Explanation

Doesn't it take a special turbo with seals that are gas resistant? Or can any turbo be used for draw thru setup?

Thanks!. Not a bad rundown.Remember some exhaust manifolds (factory made) had provision for external wastegate ...as in the Mitsubishi sigma turbo (Australia) 1981!.

You are a genius !

Nice table. I need to make one of those.

Thank you, I would love to try this idea on my 89 22R

Thank you for the good explanation and prop setup, I plan on fabricating something like that for my bbf soon

Thanks for the explanation. Although I do not exactly know how a blow through turbocharger works. As I would like to use a M122 roots style supercharger that is blown into a turbocharger on an LS engine. I just have not figured out how to route everything correctly.

Wow thanks. I have an 8.1 vortec and a 750 carb. Going to try it

Thank you so much for making this video you explained it so well thank you!

How do you adjust/set up the carburetor for a setup like this?

good to know stuff here. former fc2 (disabled here). draw through are good when you live in a warmer climate. i have one in storage for the buick 3.8 and 2 grand national turbo setups (i am thinking about putting one on each bank of my 429 BBF). if you look at the draw through setups, when the air is drawn through the carb, it gets REALLY cold and condenses. if you watch a car running, youll see the intake sweating before the turbo. one doesnt want to use a mechanical carb either. vacuum 2nd is best because youll want a large carb to feed the turbo but bigger will kill power while not spooling... what i want to do is take the draw through setup and run propane through it. that way, you would have the 9:1 or so and still have low end torque, but not knock and ping at higher rpm due to octane of propane. should be able to turn the boost up higher with propane for that reason. can you shed any light?

Excellent stuff, thanks! Very cool, really useful. thanks

Try to onderstand it on english, but i must onderstend how it work. I like it.👍

So with a draw through set up do you need to pressurize the fuel bowl?

Very good!

you did a really good job...thanks

Corvairs were turbocharged before '65. My friend had a 62 turbo Corvair Monza Sypder.

Ok so I control pressure with a blow off valve and a waste gate?or is not needed?

now do a video on twin turbo 460 set up in a foxbody please

Amazing video. You explained everything so easily. I drive carb engine cars (not American, just small Japan cars) all my driving life and always was thinking about put turbo (or compressor) on them. But in my country modified carbs are lost art :) But this video gave me so thoughts and maybe...

I've got a 83 F150,I'm gonna do something very similar! But I have a question..Do you need to get bigger Jets, float bowl and Higher pressure Fuel pump to supply the engine with the Needed fuel the engine is now Requiring? " Will you need to alter the carb to supply enough fuel?"

Awesome! Excellent information, Thanks man.

In the late 80's (87?)GM used a preheater under the carb on the s-10 4 cyl engines, it vaporized the fuel before it got into the engine, increased gas mileage by a ton when it was on all the time, so they incorporated a heat sensor to make it run intermittently, the deisel engines in most new pickups use an electric heater on the incoming air, any thoughts on this instead of using methanol to stop freeze ups?

Do you have to mess with getting or da Tory car set ups work ?

It has the risk of fuel air mixture get ignited in the turbine or before get into cyllinder, hasn'tbit? And it will be difficult to startup the engine, the fuel-air mixture has long way to get into cyllinder, wouldn't it?

Not sure if anybody has the time to answer this question but im curious; has anybody added a turbo on a 20R toyota engine? Im currently rebuilding my 1980 toyota truck 20R engine ,and was thinking about adding a turbo to help with towing a micro-camper.

How about turbo inter cooler to blow thru carburetor to a root supercharger to manifold to turbo? 🤔 Twin Turbo

I don’t know if you’ll get to this but would u need to run a bigger carb then stock to account for the increased airflow?

So then, getting a modern fuel injected supercharger and adapting a carburetor on the throttle body side is feasible and will work right?

Super helpful video! Thumbs up

Very smart

Do you need a special turbo? Like will the turbo need special seals to deal with the vacuum caused when you let off the throttle? I’m asking because I never turbocharged a motor but I assume if it I get a turbo that was intended for fuel injection the turbo would not be built to see vacuum on the input side. Thanks

great info dude, i never knew there is 2 types of carb boosting. Draw-through being the simplest, am i right to say that blow through setup is more efficient and safe for turbo itself? tq

Sweet z's man!

mad Matt seems like a nice guy

1962 was the first year of corvair turbo charged model

Question, Does the distance between the carb and the intake of the turbo matters as well as the distance between the turbo and the intake manifold?

Got a good question for you what about a blow off valve how are you going to regulate the pressure when you let off the throttle aren't you going to have a lot of turbo lag

Since the intake side of the turbo would see constant vacuum when not on throttle, how would this effect oil seals and oil consumption?

I have this setup on my Datsun 240z with 2" su carburettor but it overfuel engine especially if off boost. Any advice please? I can send pictures or video on massager

My turbo is a ray Jay . And has no internal gate . Can I run an external gate ? And how would I plumb positive boat pressure to make the gate work ? There would be fuel going through the gate?

Wouldn't it have more lag than a draw through setup? Since it's only drawing with more exhaust pressure, but to get that pressure you would need to send fuel through

ty well done

Is there any problem between the gasoline and the heat made by the turbo? if the gasoline and aire mixure that goes from the carb into the compressor get overheat... could i explote?

I think U right in one ur other video. Blow thru carb better

Look to do this to my 85 720 truck z24 motor what carb do you think would work good like 600-700 or like a 300 -400

Seems to be more complicated cause you need to fab a fixture for the carb and the intake.

So I have a 289 4bl double pump carb but if I take it off and adapt the piece to it what about the intake manifold part?

Great video keep up

if you have a rear-mounted turbo, there might be a massive backfire danger with a long intake tube.

Can you run a setup like this without a blow-off/dump/recirculation valve?

Simple idea and all that. But beware backfiring into the intake manifold - a huge ammount of air fuel mixture under pressure is a disaster waiting to happen. Blow through is more complicated but safer option. Also the unvaporised fuel droplets will rape the compressor wheel.

Hello, first off, great explanation. I wanted to learn the basics of turbocharging with carburated engines. Im thinking about doing a Briggs and Stratton turbo engine for a go kart power build. But I think there are some problems with turbocharging a single cylinder engine with no oil pan. How do I get around that.

Cen I as sir what is the size jets of that carburetor sir

Hey Matt, I was wondering for a draw through set up whether you have to modify the carb? I know on a blow through you need a double pumper set up but I would like to know if it’s the same thing. Or I can use a double pumper set up on a draw through. Or I don’t have to adjust it at all because the carb is on outside? Thanks.

Thanks

What happens if the turbo ignites the air fuel mixture before the combustion stroke of the engine? Misfire? Blown engine?

but wouldn't this cause acceleration lag due to the larger distance between the carb and the engine (at least till the turbo spools up)

Where did you source the draw through plumbing? From bottom of carb to turbo inlet peice? I cannot find anyone anywhere or I missing the name or something

Will this work on a diesel?

What is the part that adapts to carb-to-turbo-to-manifold called? How much are they and where can I get em?

What about the b.o.v. and the waste gate valve

I am a newbie to turbos and I would like to ask where you can get a intake flange if you don't know how to fabricate your own.

Great, but dont forget Holleys will need to have their power valves boost referenced.

i saw snow in the beginning of a video. How does the draw-thru-engine starts at cold wheather?!

How do you control fuel flow for low RPMs and idle?

i like the info. curious if you have run the setup on any vehicles yet. im looking to do this on a small motorcycle but curious if fuel heating in the compressor housing is an issue due to the temps the turbo gets up to?

Awesome video,I have a 87 sentra 5 speed e16i and it desperately needs a boost 69hp factory just will not do I think this would be a great option for it or engine swap,any thoughts?

I have an Avs2 edelbrock carburetor would I need to change it to blow through or buy a blow through carb ...with only 5 to 10 pounds of boost?

What about a blow off valve? how would you do that?

For this draw through setup... do you need to change the Cam ( as you would a standard Turbo system), or could I just put in and run with a Non turbo camshaft?

Cant we put a intercoolers on ths type of draw thruw setup ??

So why is blow through better, or is it ?🤔🤔

Best video I've seen thanks so much