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07-27-2013, 04:02 PM
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#1 |
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meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: Turbo setup for a 5.3
No disrespect to KB racing, but I've seen a mix of things come out of that place.
The manifolds are schedule 40 pipe, which is fine for strength but lacks the elegance of stainless for a turbo manifold. They came a long way from where the used to be, but I still get a "diy" vibe on some of the parts quality. That being said; if it works, it works. I'd be interested to hear if any high-hp guys are running this. Is there a negative side effect from having 4 cylinders push air 3ft to the turbo, wherease the other 4 push the air 4 inches to the turbo.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING  |
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07-27-2013, 11:36 PM
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#2 |
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Registered User
Join Date: Dec 2009
Location: lindale,tx
Posts: 2,373
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Re: Turbo setup for a 5.3
Trick has a new cast stainless manifold. People have made lots of power with that type set up.
Posted via Mobile Device
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82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle |
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07-28-2013, 01:56 AM
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#3 | |
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meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: Turbo setup for a 5.3
Quote:
Equal length runners from head to turbo will almost always make a little more power, and do so a little more efficiently....but this effect has somewhat of a diminished return on a big v8....why? Exhaust leaves the head in a pulse, not a single stream of air. These pulses have a certain amount of force inside a pipe, and thusly take a certain amount of time to travel the distance to the turbo. On a small engine like a 4 cyl turbo, there are only 4 pulses being generated, so if one runner has a significantly longer path, it has a greater effect on the amount of air being delivered to the turbo. From what I can find its similar to the idea of scavenging exhaust in terms of squeezing the maximum effort from the air. The more cylinders and larger engine, the more frequent and larger the pulses, making the issue of equal runners less imperative. I still think its weird to force air towards the outlet of a head, but at least the runner length thing has an answer.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING |
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07-28-2013, 09:26 AM
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#4 |
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Registered User
Join Date: Dec 2009
Location: lindale,tx
Posts: 2,373
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Re: Turbo setup for a 5.3
The highest I found in my quick look is 919 hp to the ground threw a 4.8 with stock internals.
Posted via Mobile Device
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82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle |
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07-28-2013, 10:57 AM
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#5 |
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Registered User
Join Date: Oct 2006
Location: bridgecreek ok.
Posts: 1,214
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Re: Turbo setup for a 5.3
Ive been researching for a while... I'm going custom so i know it fits and works and looks good.. Plus i want to show it and race it... but very expensive my route that's why its taking so long...
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http://67-72chevytrucks.com/vboard/s...d.php?t=494388 431 big block times, changed to a 6.0 ls with turbo 1.58- 60' 7.18- 1/8th mile@95.18 11.37- 1/4 @115.81 |
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07-29-2013, 12:05 AM
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#6 |
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Registered User
Join Date: Nov 2011
Location: South Dakota
Posts: 916
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Re: Turbo setup for a 5.3
found this video...pretty much the same setup except with an intercooler
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