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You may call me cheap, but the ~ $220 or so that the XKR's intake duct costs is too much for what you get. It's plastic, it's inefficient thanks to all those resonators, and it has a habit of breaking into pieces after 10 years, mostly at the accordion. However, in my case, the resonators were also crumbling. While I would ideally would've liked to get an all aluminum intake, my student's salary (or lack thereof) restricted that.
Instead, I got an 3" diameter elbow (I think it was 40º angle) made out of silicon, a 5 inch long, 3 inch diameter pipe from a muffler shop (for free), and a coupling, also in 3" diameter and 3 ⅛" diameter at the other end. Unfortunately that coupling hose is blue because the shop was out of other colors for that size. I took a hacksaw to the old duct, sanded down the edges on both the old duct and the pipe. Eventually I want to replace the pipe with an aluminum one. In the process I removed three resonators. Now I have no air leaks, no codes, and saved myself some money.
The result, may not be the prettiest, but it is functional and cost me just $40 all in:
P.S. I know the engine compartment is dirty. It's on my to do list.
I know, even I don't like it, but this is a temporary thing, and a damn durable one at that. Eventually I would like to replace the entire thing with an aluminum pipe, but that is expensive.
Last edited by giandanielxk8; Jul 28, 2018 at 12:27 AM.
You may call me cheap, but the ~ $220 or so that the XKR's intake duct costs is too much for what you get. It's plastic, it's inefficient thanks to all those resonators
It's solving problems in the way Jaguar wanted (and apart from durability it clearly works very well).
Your work-around is doing something else (fine for you).
Yeah, you're cheap, but you've your reasons and anyway it's your car so you can do as you will.
The XKR's intake duct costs is too much for what you get. It's plastic, it's inefficient thanks to all those resonators,.
First, good for you to get the car back into driving condition on a budget. Second, these resonators are actually your friend. My superficial understanding is that the blades of the supercharger are normally causing compression waves (sound!) to back up the intake and prevents more air to go in. These resonators are tuned to those sound waves and absorb them, allowing more air in (plus fuel equal more power). Jaguar put them there for a reason. You might want to source the right part at a later point, or repair the old one. The complication is that the air box is attached to the chassis and the throttle body to the engine, hence the accordion. It is also possible to put the intake tube too high, and let the accordion part rub on the underside of the hood lining, causing air leaks. Than angle of the pipe on the throttle has to be spot on. With the new intake on, I'd be curious to know if can you hear a difference. Thanks for sharing your design.
Interesting. I drove the car today and noticed no loss or noticeble gain in power. The throttle does feel a little more quick to react. Likewise, I also noticed no difference in sound. Only 3 of the 6 resonators were lost. All three of the resonators that were lost were all crumbling. The other three that are closer to the throttle body are still intact, and in place.
My goal was not to add intake sound or remove airflow resistances. My goal was to repair the intake duct and get rid of P0171 and P0174 for a reasonable amount of money. Mission accomplished. However, since I plan to keep this car until my retirement in 55 years or so if possible I do want a solution that will last the life of the car.
Hopefully by then I will be able to afford getting new electronics fabricated for this car.
Jaguar is working on EV conversions for models up through the 1960s so far. Good chance the X100 will get the same treatment eventually. I might be dead by then but you have time on your side.
Jaguar is working on EV conversions for models up through the 1960s so far. Good chance the X100 will get the same treatment eventually. I might be dead by then but you have time on your side.
EV conversion? Over my dead body. That would mean giving up that 4.2 Supercharged V8 and the glorious exhaust note I have. Dad got the center resonator replaced with an X pipe, deleted the before rear axle mufflers, and the post-rear axle mufflers have been replaced with Magnaflows. He also did the under axle conversion. About all it needs is the Nameless performance cats to finish the exhaust upgrades, but I think that may be too much.
EV conversion? Over my dead body. That would mean giving up that 4.2 Supercharged V8 and the glorious exhaust note I have. Dad got the center resonator replaced with an X pipe, deleted the before rear axle mufflers, and the post-rear axle mufflers have been replaced with Magnaflows. He also did the under axle conversion. About all it needs is the Nameless performance cats to finish the exhaust upgrades, but I think that may be too much.
Odds are the EV would outperform the 4.2SC. On the E-Type factory conversion they had to "de-tune" the power/performance to avoid rework of the original chassis.
I remember that one manufacturer is already piping in "automotive" sounds through the audio to give their EV more familiar ambiance. Forget which one though.
Perhaps you should record your exhaust sound for future use.
Odds are the EV would outperform the 4.2SC. On the E-Type factory conversion they had to "de-tune" the power/performance to avoid rework of the original chassis.
I remember that one manufacturer is already piping in "automotive" sounds through the audio to give their EV more familiar ambiance. Forget which one though.
Perhaps you should record your exhaust sound for future use.
Performance at the sacrifice of soul and character is to me a deal-breaker.
If the black portion of the pipe is rigid, I think the assembly is too rigid to safely absorb the differential movement between the engine and the frame. I would be worried that the fittings at either end would eventually fracture.
If the black portion of the pipe is rigid, I think the assembly is too rigid to safely absorb the differential movement between the engine and the frame. I would be worried that the fittings at either end would eventually fracture.
The blue and black bits are silicon hoses. What attaches to the throttle body is the rest of the stock duct with resonators included. The silicon bits have some flex to them.
A couple of years ago, the Tesla company sent two sales reps and a vehicle to demo at our annual air show. I got to drive it and was very impressed with the performance.I mentioned to the reps that if they could utilize the audio system to produce the sounds of a revving V8 I would buy one. They smiled and said no!
A couple of years ago, the Tesla company sent two sales reps and a vehicle to demo at our annual air show. I got to drive it and was very impressed with the performance.I mentioned to the reps that if they could utilize the audio system to produce the sounds of a revving V8 I would buy one. They smiled and said no!
BMW did this when they started downsizing their engines. The public did not enjoy the fake V8 noises.
Sometimes it pays to be a little creative
