Landjet

Well here is the prototype heat shield. It will have a small air gap away from the intake of about .050 or so when installed. Let me know what you think.

Jason Judd

Looks REALLY nice...will it work on my 968 turbo conversion, since it has a 2.7 na head?

Jason

Landjet

Jason
This is made to the shape of the stock 944 turbo intake so as long as you are using the 944 turbo intake it will work.

kevincnc

Looks great. What's it made out of and how did you determine the gap amount?

reno808

looooks good. did you do any testing yet?

Landjet

Kevin
The one pictured is a fiberglass weave and the production part will most likely be them same but cured with a high temp resin. The air gap will be done using a thin strip of .040 to .050 phenolic which will be bonded in at the time of layup. Gap was just a little extra measure of protection against heat soak just in case the shield heats up it will not be tight against the intake. Suggestion per aircraft engineer.

bscpanther

If I can take a stab at this I would think the gap has to be minimal for clearence issues but necessary to not directly conduct the heat. I am wondering what you are using to create your gap. Very nice work btw.

Landjet

reno
I will start getting some temp readings this week or weekend if weather holds. I'm thinking I will take all of the readings after a timed lengthy idle that way the engine temps will be easier to duplicate.

KuHL 951

Looks good. When you do your testing are going do before and after temps? It would interesting to see how much additional heat soak comes in from the topside also especially after shutdown. The underhood temps on most turbos are pretty high. I might try a reflective barrier ceramic coating also unless these shields work as well as you hope they will. Are you considering a similar shield for IC piping? Keep up the good work!

Landjet

bscpanther
Correct minimal as possible because it is tight under the intake. Phenolic or possibly a teflon strip in the layup will creat the gap.

reno808

so whats the price range on this bad boy?

Landjet

Steve
Yes I will do before and after temps. I am also going to look at IC pipe shielding if I find the temps around the outside of the IC pipe to be high enough to be a problem. I am also going to make a shield to go over the turbo and down pipe. I have some others in mind after I get this one worked out.
Thanks for looking and the comments guys. Keep any question coming.

reno808

whats the lifespan?

Landjet

reno
I don't know the final price of materials, the tool cost or layup time. I am shooting for a price (and this is still a wide range) between $100 to $300. I really think I can get it around $100 to $200 range unless the tool cost really surprises me.
The part will also be cured under vacum for the best results.

Landjet

whats the lifespan?
Ok you are really putting me under the heat lamp here. I will just have to go by the engineer's experience and suggestion on this one. If I get the high temp resin I want and since it will be under the intake out of sight, and out of harms way, nothing should ever wear on it, so I don't know why it wouldn't last years????