SEAT Ibiza - rwd turbo
Discussion
neiljohnson said:
Awesome but just one question
Isn't the air box a bit low for a rally car?? Surely going through water would result in hydro locking the engine!
Don't worry, i've thought of that! The air box sits in a "box" formed by the front bumper, inner wings, and the sump guard/undertray. Air gets rammed into this volume by the vehicles forward velocity and decellerates resulting in a nice high pressure feed for the airbox. However, the actual inlet for the airbox is mounted forwards of the inlet scoop outlet. As such, air must stop, and flow backwards into the airbox. That alone makes water ingestion unlikely, as the high density of water means it is "unwilling" to be turned 180deg due to it's momentum. Of course, a situation (like a crossing a ford etc) could lead to the entire volume being filled with water. To avoid this, there is a rubber "flap" fitted across the back of the volume in the inner wheelwell, that can be pushed open by the momentum of any water that enters that volume. (exit area is 3x entry area). As such, water arriving at high speed simply continues straight on through and out into the undertray/inner wing area. Of course, being stationary in deep water (over approx 10" deep) would be bad in this case as the airbox would be completely submerged. So best avoid that then ;-)Isn't the air box a bit low for a rally car?? Surely going through water would result in hydro locking the engine!
neiljohnson said:
Max_Torque said:
Don't worry, i've thought of that
Why am I not surprised you have come up with a way to avoid the water getting in but........You could have just mounted it higher
1) no room to do so (without compromising on the IC pipework and routing)
2) It would raise the cars CofG
3) It would result in a more tortuous intake path to the compressor
4) The current location is optimum for pressure recovery
;-)
In awe at your build, incredible craftsmanship.
Please may I ask what is your profession? If you are not in engineering you really really should be!
Or at least your main source of information as its incredible the depth you are covering, its inspiring to say the least.
Hats off to you sir.
Please may I ask what is your profession? If you are not in engineering you really really should be!
Or at least your main source of information as its incredible the depth you are covering, its inspiring to say the least.
Hats off to you sir.
Deadgrau5 said:
Please may I ask what is your profession? If you are not in engineering you really really should be!
Funnily enough i work in the automotive business! I've been lucky enough to work for a lot of the major OEM's and specialist consultancies, and chances are, a lot of the cars driven by people on PH include my engineering in them. One day i really must put together a list of all the cars i have ever worked on, but it would be quite a long list!Max_Torque said:
Funnily enough i work in the automotive business! I've been lucky enough to work for a lot of the major OEM's and specialist consultancies, and chances are, a lot of the cars driven by people on PH include my engineering in them. One day i really must put together a list of all the cars i have ever worked on, but it would be quite a long list!
What area do you specialize in Max? Is it engine, trans, suspension, etc? Max_Torque said:
Funnily enough i work in the automotive business! I've been lucky enough to work for a lot of the major OEM's and specialist consultancies, and chances are, a lot of the cars driven by people on PH include my engineering in them. One day i really must put together a list of all the cars i have ever worked on, but it would be quite a long list!
One question, why do you not drive this every day... Also, do you use this as a kind of CV when changing jobs?
Wow! Totally!
I'm in the head scratching stage of project at the moment (let's say I can stand on the ground from inside the car) and I can completely understand the work and skills needed to pull it off which you have in abundance
Your pics have given me a lot of inspiration and ideas of where to go with it.
I especially like the cad drawings at the start and the cradle set up pics.
Can I ask what is the reason for using the strut arrangement over a double wishbone on the rear?
Cheers
I'm in the head scratching stage of project at the moment (let's say I can stand on the ground from inside the car) and I can completely understand the work and skills needed to pull it off which you have in abundance
Your pics have given me a lot of inspiration and ideas of where to go with it.
I especially like the cad drawings at the start and the cradle set up pics.
Can I ask what is the reason for using the strut arrangement over a double wishbone on the rear?
Cheers
Max_Torque said:
Strut vs double wishbone question was answered somewhere back in one of the earlier posts iirc! ;-)
Cheers It was and I have re read the thread again and it you mentioned it when asked about the camber change on the strut and then followed on to say about the rally cars.
I was hoping for a bit of cheeky info as I wouldn't say struggling but more undecided on which setup to go with.
on searching around I have found since my posting that double wishbones suffer from scrub on compression, and since I'm wanting to drag race it on a Sunday and track it on the Wednesday it might not be the way to go.
Anyway top class car!!
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