Ek9 Rust


am i right in saying the only difference with a ek9 chassis compared to lower models is the stronger rear subframe and seam welded front subframe
no theres a few other bits. all will be revealed when i find these brochures
 
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Picked up this Black few months back. Very original car but rusted beyond belief.
Anyone rescued one this bad?

Rust is in every seam bar the bulkhead ones

Lots of undersealer holding it all together
Sadly that is how they go if people don't look after them / underseal them correct. Mine has had spots like that where people have done a shoddy job. (just behind the rear drivers seat mount) Just have to fix it and do it properly, which is what I am doing now.
Rubberised underseal has a habit of hiding rust. especially if it cracks and then allows water in during the winter
 
Sadly that is how they go if people don't look after them / underseal them correct. Mine has had spots like that where people have done a shoddy job. (just behind the rear drivers seat mount) Just have to fix it and do it properly, which is what I am doing now.
Rubberised underseal has a habit of hiding rust. especially if it cracks and then allows water in during the winter
Yeah exactly that rear corner is always a common one though always see that section repaired!
 
I started a thread years ago about the differences between EK9 and other EKs. There's a lot of misinformation floating around, like the lighter windscreen mentioned earlier which is not the case. The chassis rear subframe is stronger due to the use of a heavier anti roll bar. There are a few extra spot welds around the rear of the car, I can take photos for you since my car is completely stripped of interior. The front subframe is comply seam welded, Honda must have thought it worthwhile because that would have been quite a bit of extra work. As far as I know that's all but I'm happy to be corrected!
 
There are a few extra spot welds around the rear of the car, I can take photos for you since my car is completely stripped of interior.

yeah thatd be good to see, im making a EJK9 so any info on what honda did would be handy!
 
I will also appreciate some images of the areas that are reinforced from the factory on the EK9. I always wondered what is seam welded, but still haven't found images and solid information about these areas,

Since we are on the seam welding topic, anyone got recommendation on what parts should be seam welded and what shouldn't on EJ/EK chassis? I'm looking to seam weld my EJ since it will be fully stripped, but I'm still not familiar what parts are worth doing it and what not.
 
I will also appreciate some images of the areas that are reinforced from the factory on the EK9. I always wondered what is seam welded, but still haven't found images and solid information about these areas,

Since we are on the seam welding topic, anyone got recommendation on what parts should be seam welded and what shouldn't on EJ/EK chassis? I'm looking to seam weld my EJ since it will be fully stripped, but I'm still not familiar what parts are worth doing it and what not.

Im doing a EJ9 build and have a ek9 subframe and rack which i highly recommend if you're not going k swap because the difference is pretty crazy! The ek9 has welds everywhere and a slightly different design

Rear ASR brace to replicate the ek9s stronger rear subframe

EK9 front strut brace is made using a thicker tube than a VTI

VTI's and EK9s have a plate under the front suspension shock towers where the strut brace bolts to but if you plan on using a brace that fixes onto the suspension shocks then this wont be needed

Thats all i know of so far....
 
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Thank you for the reply. It's going to receive a K under the hood, with EG subframe, which will be seam welded. I also have genuine ASR brace for the rear subframe, something that is a must due to my 24mm ASR sway bar(I'm still to find out if that size is an overkill). I plan to seam weld the rear subframe, although it may not be needed since I will be using the brace.

I have couple of EK9 front upper braces, but I don't think that I will be making that VTI strut brace plate for them. It's more likely to use brace that fixes to the suspension shocks.

My question is related more to the rest of the body, like chassis legs, sils, etc., and how to reduce body flex. It would be great to know where and how exactly Honda did it on the EK9.

At that point I don't plan to cage the car, I don't want a dedicated track car. My idea is to have something like upgraded EK9, at least as far as chassis and body rigidity... and power of course.
 
Have you seam welded yet? I’m building an ejkswap rally car and fitting weld in cage any photos would be appreciated!
 
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