blow threw turbo set-ups for carbs?

[crazy D]

they look kinda cool....anybody want to tell me how these work? hows it done

[Loyale 2.7 Turbo]

Nice Idea! ... Also I wanna Know ´bout...

Post Pics Please!

[Frank B]

You can have a draw through, or a blow through. The draw thru is where the carb is mounted before the inlet of the carb and the air/fuel mix is drawn into the turbo then pressurized in the intake manifold. The blow through has the carb mounted inside an air-tight box so the entire carb is surounded by pressurized air. Either way you have to jet the carbs rich and that mix can't change like fuel injection so low end performance sucks.

Look up the old Chevy Corvair. I can't remember if it was the Spyder or Monza or what sub-model, but there was a carb turbo set up on one of them.

[GeneralDisorder]

Early Mazarati Biturbo's were carbed (big 2 barrel Weber), twin-turbo. If you ask around a Maz yard they might give you 1 or a dozen. They are ugly, and unwanted. Mazarati buffs refuse to aknowledge their existance.

 

GD

[970subaru]

draw through:

-requires a carbon seal turbo due to vacuum placed on the turbo under closed throttle

-same as tuning a carb NA, less specialized parts required

-cant run an intercooler, danger to manifold:grin:

blow through:

-requires a fuel pump and boost sensitive fpr

-can be intercooled

-can run any turbo you want

-more options on how to set up carb and jetting(too complicated to get into here unless you really want)

 

btw you do NOT need to put the carb in a box, you simply need to boost reference all lines that would otherwise be atmospheric.

[crazy D]

wow any body have pics? is it a complicated mess?