377 Turbo HSR
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Joined: Feb 2011
Posts: 28
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From: Evansville IN
Car: 88 T/A GTA
Engine: 377
Transmission: 700r4
Axle/Gears: 3.27
377 Turbo HSR
Has anyone used the holley Stealth Ram intake with the Avenger EFI, HP EFI, or Dominator EFI, on a turbo motor? If so how easy or difficult is it to get setup and dialed in with the timing and fuel curves
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Joined: Mar 2001
Posts: 3,306
Likes: 77
From: Fl
Car: 5.3L turbo 2800lbs RWD
Engine: Prefer 3L Iron & 5.3L Aluminum
Transmission: 4l80e
Axle/Gears: 3.512
Re: 377 Turbo HSR
Twin T04e 50 trim 48ar
HSR, C950, roller 228 @ .050 with .499 lift weak spring 112LSA
random 180-190cc runner aluminum head
9.0:1 compression
under 6,500 RPM
600RWHP
displacement maths:
355 x 6000 / 3456 = 616 * .069 = 42lb/min naturally aspirated with perfect VE
so dump VE to 90% then jack the boost to 15PSI:
355 x 6000 / 3456 = 616 * .90 = ~1100CFM * .069 (turbocharger constant) = ~760 horsepower
should be good for 600RWHP after drivetrain losses, and compressor efficiency losses.
pump gas 93 octane just intercooler it.
Weak spring low lift for longevity, get a head with good flow @ low lifts and small enough ports to maintain velocity.
With the right transmission, I am thinking 700R4 2800 Stall, 9.5" lockup converter (go probuilt!) this would be a scary vehicle
now put it into something very light like a 240sx (2800lbs)
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