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boosted_ke30

Draw Through Turbo Carby Settings

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Hi I'm from south australia and am new to all this so sorry if I'm stuffin up your boards lol :) . i have a 2 door 1975 ke30 corolla that i have just completed a draw through turbo set up on. i have locked the distributor and set it at around 17- 18 degrees. i am using a turbo from a 12a rotary running around 5-6 psi (soon to be 8- 10 psi) and a 32/36 webber running 98 octane fuel. i have found the webber to be really rich and i have down jetted it by putting a 175 in the primarys and a 145 in the secondrys but is still really rich. i was wondering who else on here has done a draw through set up on a 4k-c and what carby and settings they used or would advise

 

When i figure all this out soon ill put up some photos of my car and engine

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The carby I used would be ideal for your setup, it will tuck nicely behind the headlight with a small pod filter, then you can be fully sick and remove a headlight for drags hehe

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oh yeah 4 sure lol :) i havent touched the seals as its a turbo from a 12 a rotary she already has carbon seals in it!!

 

Good stuff, didnt want it shitin on ya.

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are roller bearing turbos ok to run fuel thru or do they have to modified aswell?

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You can run the booster vac line to the original spot as it has a check valve in it, and your manifold will supply vaccum at idle.

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That wont do him much good when he wants to stop

 

Its not an issue as long as the check valve isn't farked. I can still step my my brakes when I'm on boost. Then again you've got a crazy big volume after the throttle body :)

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Have you actually tried driving this yet?? guess so.

 

How laggy is it? cause thats a bloody big turbo for a 4k. mines off a 2 litre wrx, but you should really consider the 12a as a 2.4lt when your interested in the turbo so i can see it be VERY laggy!!

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