The ETS kit has an excellent exhaust manifold. It has close to the ideal wastegate location, a straight shot out of the collector. The gives lower overall system backpressure and reduces the chance of boost creep. The runners are equal in length and cast out of stainless steel. Stainless is corrosion resistant and has half the thermal conductivity of regular steel. This transfers the maximum amount of heat to the turbine to help it recover more energy. The thick stainless casting will not warp or crack as fabricated manifolds can for a long trouble-free life like OEM! Actually, the OEM manifold tends to crack so it’s better than OEM.
The stainless exhaust manifold transmits much less heat into the engine compartment than the OEM cast iron part, this is good for the life of underhood components. The ETS exhaust manifold has large diameter runners in addition to being equal in length. This is needed as it has to flow enough to support over 1000 hp. The manifold runners are hand ported at entrances and transitions for good flow.
The ETS kit uses twin Tial MVR 44mm wastegates. These use a heat-resistant 347 stainless valve that’s 44mm in diameter for good flow which will eliminate boost creep.
The wastegates use a galling-resistant Nitronic steel valve seat and guide in the 347 stainless housing. The actuator uses a heat-resistant Nomex diaphragm and a 17-7 stainless spring that resists relaxing with heat.
The stainless steel ETS downpipes are normally 3″ in diameter for a stock position turbo kit, but ETS custom made us custom downpipes that are 3.5″ then neck down to 3″ to bolt to our stock compatible Greddy Y pipes.
The ETS pipes are made of heat-resistant 304 stainless tubing. 304 has good high temp and anti-corrosive properties. The flanges are thick to resist warping. All of the welds are tig.
5 comments
Are you going to use any fancy thermal coatings to mitigate under hood heat?
This is such a drool worth project! One that I would never be able to undertake these days. I can live vicariously through Motoiq.
We are going to use a few different things, figuring it out now!
Oh… I smell an article out about the various coatings and wraps/blankets out there and the science behind them…
Lately I’ve seen cerakote being advertised a lot for underhood stuff. Even going as far as saying it’s equivalent to traditional thermal coatings. I’m not sold.
Then you have the DIY stuff from techline and eastwood. You have Swaintech and their white coating, the original jet-hot brand, not to mention local coaters like Embee and your local powder coaters..
I know ceracote is awesome on guns, it’s the most durable and abrasion-resistant coating in the gun world, it doesn’t rub off on holsters too easily, and is almost as tough as a plating. Doesn’t seem to burn off either although most kinds of guns we can buy don’t stay hot as long as car parts! The super air-cooled Porshe we did a video on a few weeks ago has a lot of ceracoted engine parts that still look good after a track day.
Very interested in the ETS G35-1050 kit for my R35. It has a big advantage for me having a recirc dump. Not many builds I’ve found using it or dyno’s would love to see more info!
Thank you