Has anyone added the center radiator after the fact?? I like the look of the center bumper being open.

Any risk just getting the open duck with a grill on it? Too much air going into the bumper?

Any up close pics of those with the Power Kit and Sport Design bumper would be appreciated!

Thanks.

 

Pretty much wanted to open up and possibly put mesh over the center Sport Design bumper opening.

If I just got the vented bumper trim without the radiator, I would think it would be bad aerodynamics with all the wind being pushed behind the bumper. I assume the radiator serves some purpose deflecting wind like the current cap?

A third radiator can't hurt, but any benefit for mostly street driving? Prob not unless in Arizona?

 

Picture

 

On my JCW mini, I had a Garmin Ecoroute plugged into the OBDII. According to it, the air going through the manifold was only 3 degrees hotter than the out side air temp. This diff. was the same whether I was here in Seattle in the rain or doing 90mph in 117 degree heat in Laughlin Nv. Still only 3 degree difference. I bring this up in reference to the Fabspeed air intake and whether it would be sucking warmer air than the factory intake. Let me run this next thought past you, am I calculating wrong? One gallon is 3.785 liter, the displacement of our engines. So , for every 2 revolutions of the engine one gallon of air is ingested. At 5000RPM that would be 2500 gallons of air per minute going through the intake and engine, 7000RPM would be 3500 gallons per min. At that volume per min. I would think the air is moving through the engine area too fast to heat soak, the reason, I surmise, that my JCW showed only a 3 degree increase. Does this sound right to you guys? Is either my thinking or my math wrong? I saw a Porsche here at the XXX Rootbeer get together that had the Fabspeed intake and it "looked" really nice, but would be so so easy to do maintainance. Also, if it is less restrictive, could it in fact, ever so slightly. run cooler than factory intake?

 

I agree. The center of the bumper being closed just seems like a air blocker. You would think that the center airflow could have been deflected into the side radiators.

 

If anyone has any information on installing and hooking up the front center radiator let me know. Mostly concerned about hooking it up. Thanks.

 

Serge had it installed. See post #1364 here:
https://www.6speedonline.com/forums/...ournal-91.html

 

Thanks. I'll check it out.

 

You know I can't see any reason why you couldn't open it up and put the grill on it without the radiator. From what I have seen there doesn't seem to be any additional air ducting on the exit side of the radiator when the third radiator is installed.

If you look at the pictures of when you have the front bumper off, it looks like the air diverts down anyway so my guess is it is not much different than having the third radiator. Although I suspect there might be a risk of some kind of air noise, that could be dealt with fairly easily I suppose with some redneck engineering.

Personally, I haven't seen much need for the third radiator, haven't had any temp problems even when going through some mountain passes when it was warm.. Then again I'm in socal and while it's warm it's nothing like AZ or the middle east.

So if I were to go that way for aesthetic reasons, I'd probably just put the grill on.

 

I decided to get the center radiator and look like a power kit guy (or poser)!

Easy install and not too expensive. All the hook ups are already there, and the new center trim comes as a kit. Pretty much a bolt on product.

 

On the 997.2 third radiator install, a template is provided to locate the air exhaust holes that must be cut into the bottom horizontal surface of the bumper skin, behind the radiator. Isn't this also true of the 991?

 

If you are still interested, please find attached a picture of the center radiator on the standard front bumper of my C4S.

Drew

 

Thanks for the pic

 

If anyone has the Sport Design bumper with the center radiator (power kit guys) on a C2S please let me know. I'm having an issue locating some part numbers and looking at your build by VIN would solve the puzzle.

 

Searched all of cars.com. Could not find one car new/used!!