Rear mount turbos and the weather

[CWHFSR]

Howdy!

Something I've been wondering about with the rear mounted turbos that go under the car. I live in Florida and in the summer the weather forcast is pretty much the same, 90% humidity and a 50/50 chance of rain.

Well, what will all that rain (big puddles and such) do to the turbos? I know they use a snorkle to put the air filter higher up (though I still don't know where on something like a CIS kit the filter ends up being), but what does a big splash of water do to the turbo?

[SRT8U]

On the STS kit the filter is mounted up high via a snorkel so there should be no issues at all.

[CWHFSR]

Well, I'm more interested in what happens to the turbo itself, not so much the filter because I know that is higher up.

From what I know (I'm by FAR an expert), the turbo will get pretty darn hot. And from waaaaaaaaaaay back in high school... any metal that gets really hot, then gets hit by water, tends to have problems... so I was wanting to know about the turbo and the turbo housing, how is it effected by going through puddles? In FL you pretty much don't have a choice in the matter a lot of times.

[Tim@NCTSLLC]

Nothing, mine has over 31,000 miles on the system with no issues, they are simply not hot enough to experience thermal shock damaging the metal.

Tim - CIS

[crhemi]

Nothing, mine has over 31,000 miles on the system with no issues, they are simply not hot enough to experience thermal shock damaging the metal.

Tim - CIS

Have youlogged any track time (to lazy to search)?

[Tim@NCTSLLC]

12.95 @ 110 running about 6 - 7 psi, no weight reduction, 20" rims, 3/4 tank of fuel. Spinning till mid way through second.

Tim - CIS

[Fondy]

12.95 @ 110 running about 6 - 7 psi, no weight reduction, 20" rims, 3/4 tank of fuel. Spinning till mid way through second.

Tim - CIS

I could care less about a 1/4 time if I could do that.

AWESOME!

[Rockinsrt8]

Ive got the STS twins comming. As long as your not getting on it, something your not liable to do in wet weather anyway, the turbos shouldn't be getting that hot.

[Tim@NCTSLLC]

I could care less about a 1/4 time if I could do that.

AWESOME!

That was on the track, on the street, it is spinning through 3rd.

That was on 20 x 9 rims with 9.5" wide rubber, not the skinny stock continentals. In that video, it left 165 feet of double black marks.

Remember, this is an all stock internals 5.7. On the low compression 392 stroker we just finished up, if you punch it at 50 or 60, it WILL go sideways!

Check out this video link for an example of the stock internals 5.7 under boost.




Tim - CIS

[CWHFSR]

Since I started this thread I guess this can't be a threadjack...

Is that the stock headers or aftermarket headers for better flow?

[formerice]

BTW K&N makes a cover to keep water out called a Dry Charger, it works great, I run one on my Air Hammer. Obviously you can't run it under water, but a little splash, no problem.

[Tim@NCTSLLC]

Since I started this thread I guess this can't be a threadjack...

Is that the stock headers or aftermarket headers for better flow?

If speaking of my 300C, the engine is all stock, including the stock exhaust manifolds. Elsewhere is was made mention of cats not standing up to forced induction and either breaking them, or melting them. I run factory cats, have over 31,000 miles on them, and never had any issues. My EGT's are kept in check, less than 100 degree increase over maximum stock temps at full boost.

When set up properly to maintain safe EGT's, there is no concern with the cats. In 2 1/2 years of continuing R&D and close to 100,000 combined road miles, we have never had a failure of a catalytic converter.

For forced induction alone to raise temps in a cat high enough to cause damage, the combustion chamber temps are going to be so high that the engine will not survive.

Most cat damage is caused by raw fuel passing through without being burned, and then lighting off in the cat elevating the temps to a dangerous level. That much fuel is also going to cause lubrication issues in the cylinders due to the fuel washing away the thin film of lubricant.

Tim - CIS