Blowthru vs/or Drawthru Turbo

[NJ John]

Years ago I told my buddy to get a FK65 for his turbo project. Then I started over thinking it and had him go with a FK7. Then he never went turbo. But, it pulls hard with dual 40's. Not helpful info at all. But he still has the FK65 NIB. I should get it off him. Since I was going to use a W120 for the street.
How would a VZ15 be for a turbo?
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1973 standard, yellow, lowered, 3” narrowed front, 1600 blo-thru turbo w/single dell 15.4@86, so far
11.41 et buggy. Long gone
Let’s go O’s! Let’s go O’s!
https://www.youtube.com/@AirSpooledGarage

[Splitdog]

250 degrees of duration at .050", on a 108 Lobe Center.
The VZ Series of cams have a short valvetrain life due to super-fast ramps and high valve lift. 1.1 rockers only.
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CH³NO²

Z = z² + C

Der Blitzkrieg Kafers

#notacallooker

[madmike]

I was always a fan of small cams, I've seen so many car's over cam'd ,, but
I had great advice to run a FK10 in my fresh 2276 I just had to try it ,,
It works great , I think because of the stroke ,, it doesn't bog , hick-up or anything ,, just putts around like a n/a 'stroker' , cruising ,, I point out to the guys I give rides too and show'em the boost gauge " see it's in vacuum mode still: no boosting even at lite throttle it will put u "back-in-the-seat Hope this make since?
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'Black Ice'Drag Buggy 'Turbo'
Rail Buggy 1915 turbo
76 Drag/Street bug 2180cc 'Turbo' 11:85 @113 mph"If I go any faster I'll burn up the Hamster" ,gets 28 mpg. also 10/09/22 11.90 @115 mph
"If I'm ever on Life Support,UNPLUG Me, Then Plug me back In see if that Works"

[oprn]

I do not have the experience of working with cams that you fellows do but here is my common sense way of thinking about it.

Hotter cams are a way to get more fuel air mixture volume in and out of an engine. Usually at a higher rpm. A bit like a high strung woman - not?

Turbos do the same job but at a more resomable rpm for the most part if they are matched correctly to the engine size. The stronger, steadier paced lady.

Now, throw these two ladies in the same kitchen and tell them to make you supper... Ya! It's going to take some serious effort to get harmony there! Personally I am content with just one wife or the other.

Hot cams and turbos look to me to be a bit of a tricky balancing act because they are both fighting for dominance over your power band.

Is that a fair comparison?

[madmike]

Not really Mine likes the lower rpm's too,,not really noticeable?
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'Black Ice'Drag Buggy 'Turbo'
Rail Buggy 1915 turbo
76 Drag/Street bug 2180cc 'Turbo' 11:85 @113 mph"If I go any faster I'll burn up the Hamster" ,gets 28 mpg. also 10/09/22 11.90 @115 mph
"If I'm ever on Life Support,UNPLUG Me, Then Plug me back In see if that Works"

[Splitdog]

[Bugsy61]

Small cam, low RPM power, big cam, high RPM power. No different than naturally aspirated. And the median area between the two, which is probably the most practical for most people. Extremes are for out of the ordinary situations. I use a small cam because I blow through Kadrons. They don't idle very well without a small cam. So I guess you would call Kadrons a conditional extreme.

[NJ John]

[busey]

Question, regardless of which or who's FI turbo kit i ultimately decide on , are there misc parts i can start accumulating that i will need regardless of which or who's kit? I'm thinking Fuel Pump is probably one??
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No turning back now, "Its Blow thru or No thru" baby!

[Krochus]

[67rustavenger]

The PO of my car. Pre-plumbed it for FI.
I don't think the fuel supply and return lines are large enough for the job thow.

The pics are just an idea of where you can run your supply and return tubing.

The fuel lines are gonna need a good cleaning before I can even think of using them.
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I have learned over the years.
Cheap parts are gonna disappoint you.
Buy Once, Cry Once!

There's never enough time to do it right the first time. But there's always enough time to do it thrice.
GFY's Xevin and VW_Jimbo!

[Krochus]

I don’t even have a return line on my car.

Or actually I should say that my return line is only about 2 feet long. From the filter regulator back to the tank.

If a 1/4 Line will keep a carbed turbo big fed in theory it should keep a turbo one fed. But I ran 3/8 jic lol
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1970 Turbo Baja Bug Turbaja 2165 t3/t4 Speeduino sequential EFI LS3 coil on plug ignition

1965 Chevy c30, Microsquirt turbo aluminum 5.3/nv4500

[clonebug]

[oprn]

X2 on the brake upgrade!

[67rustavenger]

[clonebug]

[67rustavenger]

Honestly. They appear to be brake line diameter. I haven't measured the fuel lines. Because I really haven't thought of FI. Yet!
But you never know!

[slalombuggy]

If you're running new lines just put in 3/8" line and use #6 fittings. Those will handle all you can throw at it. No sence doing the job twice if you go bigger or badder in the future just so you could save $10 now.

brad

[busey]

[Dauz]