Cargraphic Headers. Whose got em?
#617
#620
#622
#624
They do help with Radiant heat, which is the type we are trying to avoid here.....not direct contact with the heat source.
A lot of race teams use them and I have used them in the past in race cars....for the cost it's a bit of extra safety as I think those headers are pretty close to the coils.
A lot of race teams use them and I have used them in the past in race cars....for the cost it's a bit of extra safety as I think those headers are pretty close to the coils.
#627
Three Wheelin'
#628
#629
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If you never intend to track your 981 car and you leave stock exhaust manifolds on, the heat shields are probably not necessary. Great question why they were not installed on the GT4 because the car was built for those who intend to track the car at least several times if not many. Even the OEM exhaust manifolds place the cats very close to the aft coil packs on both cylinder banks on 981 cars. Besides keeping radiant heat away from the coil packs, they shield heat from the valve covers themselves thereby reducing heat transferred into the engine oil that flows across the inside of the valve covers as it's thrown there by the rotating camshafts.
#630
Drifting
Hi team, I ordered the parts from Suncoast the other day and have installed them. With my setup (Cargraphic race headers), it was a straight forward install once I figured out how to get my big hands in there. With the stock header/cat-I am sure it will be considerably tighter to get in (probably why they are not on from the factory as you will need to remove them when servicing the coil packs/plugs). I would say that with race headers-I would definitely recommend installing these. They will drastically reduce the heat on the lower portion of the valve covers and most importantly the coils. Here is my parts list-I ordered the wrong bolts-learn from my error:
1 9A1-104-314-00 HEAT SHIELD 1 25.19
2 9A1-104-313-00 HEAT SHIELD 1 25.19
3 9A1-104-311-00 HEAT SHIELD 1 26.30
4 9A1-104-312-00 HEAT SHIELD 1 26.30
5 900-385-041-01 TORX SCREW 6X 4 0.54 2.16 (YOU NEED 8 OF THESE)
6 900-385-112-01 TORX SCREW 5X 4 2.40 9.60 (WRONG-DO NO ORDER)
1 9A1-104-314-00 HEAT SHIELD 1 25.19
2 9A1-104-313-00 HEAT SHIELD 1 25.19
3 9A1-104-311-00 HEAT SHIELD 1 26.30
4 9A1-104-312-00 HEAT SHIELD 1 26.30
5 900-385-041-01 TORX SCREW 6X 4 0.54 2.16 (YOU NEED 8 OF THESE)
6 900-385-112-01 TORX SCREW 5X 4 2.40 9.60 (WRONG-DO NO ORDER)
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DR.S (12-30-2020)