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Exhaust manifold diameter question
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Topic: Exhaust manifold diameter question (Read 2242 times)
April 09, 2007, 06:25:02 pm
flapjack
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Exhaust manifold diameter question
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on:
April 09, 2007, 06:25:02 pm »
I'm making an exhaust manifold for a 1.6td. The flanges will be 1/2" thick and transition from the oval opening on the head to a round opening.
Should I keep the same x-sectional area or go bigger?
The turbo is a k14, maybe T3
thanks
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Reply #1
April 09, 2007, 08:15:06 pm
AdAm84
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Exhaust manifold diameter question
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April 09, 2007, 08:15:06 pm »
i'd make it expand out if at all possible. that would decrease chances for reversion.
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Reply #2
April 10, 2007, 02:12:44 pm
flapjack
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Exhaust manifold diameter question
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April 10, 2007, 02:12:44 pm »
you tried it? how much bigger?
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Reply #3
April 11, 2007, 06:50:01 pm
AdAm84
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Exhaust manifold diameter question
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April 11, 2007, 06:50:01 pm »
i've never tried. but an old engine builder taught me to port heads and thats the principle we use. you make every thing expand in and out to keep reversion at bay.
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Reply #4
April 11, 2007, 07:01:02 pm
SMOKEYDUB
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Exhaust manifold diameter question
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Reply #4 on:
April 11, 2007, 07:01:02 pm »
you wont gain any performance if you dont have anything else done to the engine. Why not just port the stock td manifold
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12mm PUMP 'O' DEATH on a 1.6L
(courtesy of GILES)
2000 NISSAN XTERRA (5 SPD)
1990 VW JETTA 20 VALVE DRAG CAR
1984 RABBIT TD 2dr (SOLD)
1.8t AEB soon around 550 whp
Reply #5
April 12, 2007, 05:57:13 am
flapjack
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Exhaust manifold diameter question
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April 12, 2007, 05:57:13 am »
I would, but the stock exhaust manifold won't fit with the g-60 intake manifold.
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VWDiesel.net The IDI, TDI, and mTDI source.
»
Engine Specific Info and Questions
»
IDI Engine
(Moderators:
malone
,
burn_your_money
,
Vincent Waldon
,
theman53
) »
Exhaust manifold diameter question