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#1
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exhaust manifold polishing
a while ago i did a 4 into one header. the smaller diameter pipes gave me good low end torque and the 4 into one design made good top end capability too. i took them off this weekend and had a look at the design. here is what i found. the welds were good on the outside but inside there was a step. this was causing a rough idle and power loss from exhaust gas reversion. i also noticed that the exhaust ports were wider than the holes in the manifold
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#2
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so i decided to polish them smooth and widen the holes with my pencil grinder
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#3
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finished job, after spraying with high heat ceramic spray from duplicolor
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#4
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i also changed the bolts from the double screw ended type to the hex bolt type. to make it more accessible in future.
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#5
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i guess i only gained about 2-3 hp after i tuned in the fuel. it needed a 1/8 turn on the fuel dist after that. but i had fun and it kept me out of mischief on the weekend. hehehe
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#6
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What type of vehicle is this on? Where did you get those headers?!
__________________
RIP: 80 300SD RIP: 79 450SEL 2002 E430 4matic (212,000km) 2002 ML500 'sport' ____________________________ FACEBOOK: PANZER450 |
#7
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Is this on your new 280?
__________________
1992 W201 190E 1.8 171,000 km - Daily driver 1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone 1965 Land Rover Series 2a Station Wagon CIS recovery therapy! 1961 Volvo PV544 Bare metal rat rod-ish thing I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior Don't leave that there - I'll take it to bits! |
#8
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it was on my 190e 2.0. i have since sold the car. i had an exhaust shop cutom make it up for me.
if you thinking of modding the 280e exhaust, im not sure how much you will gain. the stock exhaust does a fantastic job. im talking about the euro version. the us version could do with a swop to the euro exhaust. try germanstar.com they have the euro exhaust |
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