It's been talked about on every other "performance" forum (non-mb related, at least)


Anyone ever thought about it. Our MBs don't have all to much room for a proper sized IC, and this is cheap HP (upto 65ish HP has been talked about)

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-1983 VW Rabbit LS Diesel (5speed, VNT/Giles build)

Cold air does not produce more power, it allows more fuel to be safely injected. You can get the air as cold as you want but it won't make any power difference until you set the fuel rate to match the higher air density.

Personally I'd prefer nitrous injected into the intake after the intercooler. As it expands it super cools the air and has the added benefit of being an additional oxygen source.

CO2 costs about $3.00 per lb to refill and it only provides cooling. Nitrous is about $3.50 per lb to refill, it cools the air, it provides a big HP boost if you have the fuel to burn with it AND it can be sprayed onto the intercooler the same style as CO2.

Nitrous is an all-around better deal, IMHO.

top gear had a vid , they had nos on a tdi, it made a big difference

isnt colder air like more psi, its more oxygen rich so it can act as psi to go with more fuel?? to a extent !

and hitting nos will give a psi boost into the intake ?

have the purge line blow on the IC

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1985 300D - 599,xxxk - blue interior #265 Monark Nozzle, AL129X, 15" Ronals, Gen II Big Brakes hunting
1985 300D - 491,xxxk - in prog-{A-A IC, 3" exhaust, psi\pyro, 28*BTDC, Hella Euros, IP Limiter removal
1985 300TD - 783,xxxk - parts car,used new engine with ALDA cap inplace
1987 Kenworth T-600 8LL 425 CAT Mech. - 6,000,000+k - DEI exhaust wrap, punched through resonators, 1 recent rebuild,

That was Fifth Gear and their video is very misleading. Nitrous alone will give no power boost but Fifth Gear didn't say what fuel source they use or how much they use.

Nitrous oxide, When at a certain temperature the nitrogen and oxygen molecules break apart from eachother, Giving the fuel more oxygen to burn.

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Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac?

As long as they would add one additional commandment for you to keep thy religion to thyself.
George Carlin (Wonder where he is now..)

1981 240d (engine donor 1983 240d) recently rebuilt engine hurray! - No more.. fought a tree and the tree won.

pearl black 1983 240d 4speed (Converted!@$$%) atleast the tranny was rebuilt.