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Originally Posted by spidertri  If I were looking for just a low boost (8psi) turbo system, would an intercooler be necessary? The DASC is non intercooled, correct? |
Not necessary but it adds so much power. the charge temps off a DASC are so high. intake temps are 150 and go up to 200 at 15psi. this is why we must shoot meth on a DASC to use a chemical intercooler at higher boost psi.
At 8psi the charge temps are very high and with a turbo and intercooler you can get the charge temps down to almost ambient. cooler charge temps make big HP. Also not pulling power off your crank pulley to turn the S/C is all HP to your flywheel. It is around 30-40% loss of HP to just turn the S/c to make your boost.
I was so shocked at how much power a turbo made at the same boost psi compared to a S/C. It is a combo of intercooling and not needing to turn the S/c. I will never run a S/C again...
So not adding a $125 part for intercooling is just a total waste of power. Also a turbo has much hotter charge temps then a S/C so you really need one. It is very easy to install a intercooler and the power gain is well worth it. Remember do not buy the bar and plate intercooler (Old design) buy the delta flow which is the best you can get and way better then any bar and plate system hands down.
On a side note if you look at the Buick v6 Grand National and why that motor made so much power from the factory was because it came with a factory intercooler. Intercooling is a major power maker and should not be excluded from any set-up even at low boost. Call Nick G or ask Barrie at mid-night about this...It is something that is needed and is a cheep upgrade to make more HP.
John S