Blow through carb turbo

[bhearts]

I've always been curious, because carburetors seem to be commonish with turbos and old muscle cars. Could a side draft carb be set up to work with the b6t. I've read that you either need to tune the jets rich so good afr under boost, or tune them for n.a.and have a secondary enrichment source. Would anyone ever try carb turbo for simplicity purposes and reducing engine bay wiring hassle

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[sketchman]

I think if you want simple you want draw through.

There was a blow through turbo car on here at one point, but it didn't last long. Sold off and then got parted out.

[bhearts]

I think if you want simple you want draw through.

There was a blow through turbo car on here at one point, but it didn't last long. Sold off and then got parted out.

Draw through is tough tho. Everything after the carb needs to be downhill, and it puts vacuum on the turbo compressor seals.

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[bhearts]

I think if you want simple you want draw through.

There was a blow through turbo car on here at one point, but it didn't last long. Sold off and then got parted out.

And drawing high volume fuel through the turbo inlet displaces o2 and could wear the impeller down

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[Advancedynamix]

Bug guys blow through webers and all sorts of Holley variations all the time. You could hit up an air cooled VW turbo guru for a baseline jetting on the HP/flow your looking at getting. The b6t is a more efficient design than the old type1 flat4 so you'll be on the rich side.

When you call them up, don't mention anything about a Mazda engine or that it's in a festiva. Just say, "I'm trying to get 200hp from my 1600 with xxx turbo blowing through xxx carburetor. What jetting should I start off with?" They may tell you that your going to blow it up, just say you've got stronger internals than a stock 1600 vw. Don't get windy about your setup, they probably won't care and you'll loose them.

Most old school VW turbo guru types don't care for anything but old air cooled German cars. You mention your car is a 90's Korean car with a Japanese engine and you just entered the "screw this guy" zone. You'd get that even if you had a mid 90s VW. They aren't all that way, but most of the good ones (who lived through blow through carb dominated dragster) are.

[bhearts]

Bug guys blow through webers and all sorts of Holley variations all the time. You could hit up an air cooled VW turbo guru for a baseline jetting on the HP/flow your looking at getting. The b6t is a more efficient design than the old type1 flat4 so you'll be on the rich side.

When you call them up, don't mention anything about a Mazda engine or that it's in a festiva. Just say, "I'm trying to get 200hp from my 1600 with xxx turbo blowing through xxx carburetor. What jetting should I start off with?" They may tell you that your going to blow it up, just say you've got stronger internals than a stock 1600 vw. Don't get windy about your setup, they probably won't care and you'll loose them.

Most old school VW turbo guru types don't care for anything but old air cooled German cars. You mention your car is a 90's Korean car with a Japanese engine and you just entered the "screw this guy" zone. You'd get that even if you had a mid 90s VW. They aren't all that way, but most of the good ones (who lived through blow through carb dominated dragster) are.

Some engine has one carb thing per runner. Could I just use one of those and jet it right for what I need. Or do I need multiples

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[dliverance]

There's a multiplier for displacement with a turbo. I'll see if I can find it. I would also look into the miata sebring msd box. It pulls timing under pressure. x degree per x psi. That would help keep it from blowing up.

[bhearts]

There's a multiplier for displacement with a turbo. I'll see if I can find it. I would also look into the miata sebring msd box. It pulls timing under pressure. x degree per x psi. That would help keep it from blowing up.

See, I keep getting stuck on cleaning out the engine bay of it's nasty wires, but then I remember that I still need spark source. So I'd need to keep the distributor. I plan on running tons of meth so I'm not worried about timing

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[bhearts]

Hi

[Advancedynamix]

You can make a F.I. setup look cleaner than a carb setup if your crafty. Use a microsquirt, with hidden wires and hidden COP. The CAS is so close to the back of the engine that it's easy to tuck the wires under the intake. Microsquirt is built to be mounted on an engine (you'll want to isolate it still though) and take more vibration than traditional systems. It was designed for powersports. That means you only need a couple wires running to the car. You'll need a harness with the charge and battery cables and guage wiring either way, so you'll have to have a small harness. The factory harnesses have a lot of wires that you don't need with a simple standalone F.I.

[Advancedynamix]

Some engine has one carb thing per runner. Could I just use one of those and jet it right for what I need. Or do I need multiples

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You can, but plan on spending what you'd spend to get a microsquirt going (or way more if you don't get lucky and find a good deal on the adapter). Dual Webers are going to set you back 600+ bucks on a good day.

The bug guys use a Holley for the best bang for buck setups. You may be able to get away with a small 4 barrel.

[bhearts]

You can, but plan on spending what you'd spend to get a microsquirt going (or way more if you don't get lucky and find a good deal on the adapter). Dual Webers are going to set you back 600+ bucks on a good day.

The bug guys use a Holley for the best bang for buck setups. You may be able to get away with a small 4 barrel.

Yeah, and then no spark tuning. Alright. I won't do that.

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