Jump to content

Turbo onto N/A 2.5


Recommended Posts

One for the 4 pot specialists out there.

Guy I know has a dead Turbo 2.5 engine: One piston has broken up.

I know where to lay my hands on a good normally asthmatic engine so as the quoted CR is the same for both lumps at 21:1 the question has to be: Will the head, turbo etc from the dead lump work on the N/A one?

Not lookig for specualtion I'm afraid, just a yes or no if you have either done it or know it will or won't work!

TIA

Link to comment
Share on other sites

Guest diesel_jim

IIRC correctly the internals of the non turbo are different to the turbo version. different spec pistons, different cooling and the oil return pipe for the turbo.

I'm sure Les will chime in soon, as he's stripped several of these and become rather, intimate, with them... :D

Link to comment
Share on other sites

IIRC correctly the internals of the non turbo are different to the turbo version. different spec pistons, different cooling and the oil return pipe for the turbo.

I'm sure Les will chime in soon, as he's stripped several of these and become rather, intimate, with them... :D

your right Jamie, the piston are different to the n/a ones & the block has extra oil ways or the turbo feed/return.

Link to comment
Share on other sites

I don't know that you could do this on a tight budget. So many parts are different. You would need Injector pump, maybe injectors, turbo and manifold, downpipe, assorted pipework, and pistons. You would have to drill and tap for oil pressure supply and drain for the turbo bearing. It would be interesting to 'see' it done, but there's no real point in it in my opinion.

Les. :)

Link to comment
Share on other sites

If you've got PLENTY of time on your hands and a real lack of cash, the 2.5NAD pistons would go in the TD block, so long as one bore wasn't knacked by the passage of many outward-bound piston parts. The performance won't be quite right and you'd to well to watch the EGT, although there's no cheap way to do this - wind the fuel down until there's no black smoke and see if you've got more power than the NAD?

As was said, perhaps better than the NAD on it's own but to be honest, it's a pretty sound engine in it's own right and, while not impressive, does exactly what it says on the tin and will do so in the face of considerable abuse.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We use cookies to ensure you get the best experience. By using our website you agree to our Cookie Policy