1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Dyno'd my Cartech Drawthrough Turbo (12a)

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Old 08-11-10, 11:45 AM
  #26  
My 7 is my girlfriend.

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Originally Posted by jim_chung
Thanks to all for some great responses!

So I'm convinced, I could use a bigger carb.

I could probably use a bigger exhaust too! Currently running the Cartech downpipe into a RB presilencer then into stock connecting pipe and then stainless steel free flowing muffler of forgotten make that I had replaced a decade earlier because the RB muffler had rusted away where it has to go over the axle.

I try and post some engine bay images and see if I can find the muffler make. Definitely not 3" anywhere!

Jim
Isn't the stock connecting pipe like 2 inches?? Get that thing to an exhaust shop, that exhaust is costing you a lot of power.
Old 08-11-10, 11:39 PM
  #27  
Banned. I got OWNED!!!
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I don't know much about carb sizing, but I was at that same dyno last year and pulled a 150 with my do 12a . I did about the same at another dyno locally, and did another run after my exhaust redesign and longer intake manifold and pulled a 165whp . mind you I'm street ported but still your boosted. just to give you an idea.
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