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b230FT Exhaust manifold question

yambox142

yambox142

New member
Joined
May 25, 2020
Location
Nor Cal
I have a 1971 142E, with a b230ft swap (out of a 1993 940) and I have noticed that the exhaust manifold is in the beginning stages of cracking. I understand that this is notorious issue with these manifolds. Two questions:

1: Is there anyone that makes a respectable (well built) b230FT aftermarket turbo manifold? Or is is just a case of having to be on an endless search for a used OEM (hopefully not cracked) manifold? I'm just not a true believer in welding cast iron... (<-- let the trolls come out from under their bridges for this comment)

2: If I have to replace this entire system with a T3 set up, does anyone know if a top fitted (aftermarket tubular stainless manifold w/ top-mount turbo orientation) will fit in a 142 engine bay? When I say "fit" I am mainly referring to the height (I refuse to cut my hood).

I guess my other option is to find someone to build a custom manifold.

Just looking for any constructive thoughts, maybe someone has run into a similar issue.
 
yambox142 said:
I have a 1971 142E, with a b230ft swap (out of a 1993 940) and I have noticed that the exhaust manifold is in the beginning stages of cracking. I understand that this is notorious issue with these manifolds. Two questions:

1: Is there anyone that makes a respectable (well built) b230FT aftermarket turbo manifold? Or is is just a case of having to be on an endless search for a used OEM (hopefully not cracked) manifold? I'm just not a true believer in welding cast iron... (<-- let the trolls come out from under their bridges for this comment)

2: If I have to replace this entire system with a T3 set up, does anyone know if a top fitted (aftermarket tubular stainless manifold w/ top-mount turbo orientation) will fit in a 142 engine bay? When I say "fit" I am mainly referring to the height (I refuse to cut my hood).

I guess my other option is to find someone to build a custom manifold.

Just looking for any constructive thoughts, maybe someone has run into a similar issue.
Click to expand...
I mig welded mine about 5 years ago. I drilled the ends of the crack then preheated it with an acetylene torch until it was cherry red then zapped it, it's still holding up.
 
Thanks

I familiar with Yoshifab, and they seem to be very reputable. I appreciate both comments. I think I will need to come to terms with my hesitation regarding welding cast-iron.

I don'd need 300 + whp, this car is super light, and what I have is fun (for now).

I appreciate the comments.
 
yambox142 said:
I familiar with Yoshifab, and they seem to be very reputable. I appreciate both comments. I think I will need to come to terms with my hesitation regarding welding cast-iron.
Click to expand...

<iframe width="560" height="315" src="https://www.youtube.com/embed/Fw-w-d75Caw" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
 
Ive done 3 and they are still holding up. I drilled the end of the cracks, heat up manifold, then welded it up. I was like you at one time but figure hey what do I have to loose. Plus saved me from buying a 300 manifold.
 
90volvo said:
Ive done 3 and they are still holding up. I drilled the end of the cracks, heat up manifold, then welded it up. I was like you at one time but figure hey what do I have to loose. Plus saved me from buying a 300 manifold.
Click to expand...


I think I'm going to have to come to terms with my aversion to cast-iron welding.
 
Well this was a nice find.

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