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+--- Thread: Intercoolers (/showthread.php?tid=1260)
Intercoolers - BenE67 - 04-05-2010
Experts;
I have already bought an European exhaust manifold and a Holset HE341Ve for my 1987 300D turbo. The next on my list is an intercooler. I have read a lot about different kinds. Some recommend a thin one (1.25" think) blocking the radiator. Some recommend a small but thick one (4") hanging low and blocking a small part of the radiator. What is your recommendations?
ben
PS: attached picture is the kind of set up I am going for, off course the exhaust manifold will be different.
PPS: do HE341Ve and HE351Ve use the same elbow?
RE: Intercoolers - ForcedInduction - 04-05-2010
The thicker the intercooler the less efficient it will be. The ambient air heats as it passes through the core, by the time it reaches the back of a thick core it can't absorb much more heat and part of the engine air remains hot.
A large thin intercooler is much better than a stubby thick one.
Here is a chart from a TDI that compares a thick aftermarket side mount intercooler to a thin front mount intercooler.
341 and 351 vgt turbos are very different. They have little in common other than the same oil/drain ports and a 4" air mouth.
RE: Intercoolers - BenE67 - 04-05-2010
So, would you say that going with a 1.25" thick FMIC blocking the whole radiator would have no/little effect on radiator cooling the engine?
RE: Intercoolers - ForcedInduction - 04-05-2010
Yep. An intercooler will put less heat into the radiator air than the A/C condenser would.
RE: Intercoolers - BenE67 - 04-05-2010
Thanks, as always informative and helpful.