Duke

I also have the complete radiator surface covered by the intercooler and the oil cooler - no water cooling issues.

Lemming

Well, stacking them is the easiest option. Wish the SC would get here!

Chris White

There is lots of vacuum on the engine side of the throttle body. The fun part is that the idle air system takes air from the pre throttle and feeds it to post throttle – the system is not expecting to see that large a pressure differential! Easy to fix with the standalone – but it did make for some interesting tuning.

DDP

Patrick, you're definitely the true test of any part with how much you actually track your car. What are the dimensions on your IC if you don't mind me asking?

gt37vgt

Not as big as mine

333pg333

By Jingos, I can't remember? I must have written it down somewhere but I'll be balderdashed if I can find it.
Not sure why I am talking like Dick Van Dyke from Mary Poppins...anywho...

It doesn't look as large as Waqqas' one, but clearly it's not just the size that counts. The guy that built / installed mine mentioned more than once about the coarseness or porosity of the core and allowing a decent flow. He was confidant that this one would support over 600hp. On this car that won't be an issue. Also, we tend to do short, sharp events rather than enduros. So our cars tend not to have overheating issues due to long periods on the track under boost.

I also read something about the i/c and rad are better off if they are not too far apart from one another. If there's a big gap you can get some stall going on....apparently.

nick_968

Likewise on my car, I have the same arrangement with a big front mount up tight against the rad. We designed it with this in mind with a very coarse core to flow lots of air to the rad. The IC is oversized in order that the core size matches the rad rather than having solid items such as end tanks sitting in front of the rad and blocking airflow. Also being oversized it doesnt get as hot meaning that the air that flows through it to the rad also has plenty of cooling ability left.

Chris White

Yes, street car that may see an occasional track day. 5-6 psi with no intercooler. No intercooler is fine for street use but it might worry me for track use. I would monitor intake air temps (the TecGT does that) for track use.

Lemming

Ok, question on IC piping size. The SC kit is here and the the output on the unit is 2.5" OD. Should I run the same size for all piping and IC inlet and outlet? Throttle body opening is 2.75"OD.

Intake of the SC is 3" OD and all the piping and air cleaner came with the kit.

Remember, we only only talking about 5 or 6 lbs of boost.

gt37vgt

yeh 2.5" will be good ..

Rogue_Ant

+1

Willard Bridgham 3

Both 2.5 and 3" will work, but pressure drop costs about 8-15 hp/psig and that's about the difference in pressure drop for 2.5" vs 3".

gt37vgt

bullocks ...you know that it can't be quantified that easily ... in some cases a restriction and resulting pressure differential can actually increase HP if the initial demand curve of the engine has plotted below the max efficiency map on the compressor map.

Lemming

The reason that I asked about 2.5 vs 3 is really to make the setup easier. With the 2.5 I would use an intercooler that has a core size of 21x6x2.5. This intercooler would fit nicely at the bottom of the radiator without rubbing on the front metal piece. All of the 3" intercoolers that I have seen are tall and would require me to remove the front metal section an add a support brace. Having said that, I am not opposed removing it if 2.5 will compromise my setup.

At the moment, I am planning on putting the air intake in the passenger side headlight area.

gt37vgt

Generally speaking the cross sectional area(charge air path) of the inter-cooler is more of a flow / pressure drop factor than the piping .
so a standard 951 inter cooler is 5.5" tall and 5" deep so about 27 sq in.. and has acceptable pressure drop of about 1.2 psi@18 psi( and good for 400+hp) a water air IC are about 12x4 so 48 sq in and have less than half a psi drop