Converting an SD33 to SD33T (Adding a Turbo to Non Turbo Engine)

[Chops]

There has been a lot of talk around, about adding a Turbo to a Naturally Aspirated engine. I was once interested in performing this transformation, however since reading a few comments around the internet, I have mixed thoughts on the matter, and I don't believe it is worthwhile.

There are many different comments from people why its not a good idea, some of which relate to different head design, to different pistons and rings.

Just yesterday I found some information, stating not to use an SD33 head gasket on an SD33T engine, as it will (can) block water galleries and oil holes.

[Finly Owner]

You are correct with the engine and head components, there are also some differences in the deisel pump delivery valves as well as the injectors are different too. I can scan my factory SD33T nissan workshop manual for AB and he can make it available here. Just give me a few days.

[Chops]

No need to scan it, there is already a manual in the manuals section relating the SD33T engine.

Some people have fitted a Turbo to a Non Turbo engine successfully, however I am not so sure its a good thing to do. There`s no doubt it can be done, its just not something I would consider to be reliable, especially if you do a lot of off road driving in remote situations.

[Finly Owner]

OK I asked the question the other day, when I tried looking at the index of that manual I couldn't see the actual SD33T listed? Did I miss it?

[Chops]

OK I asked the question the other day, when I tried looking at the index of that manual I couldn't see the actual SD33T listed? Did I miss it?

Not sure what your after Finly. This post here (http://www.nissanpatrol.com.au/forums/showthread.php?1136-SD-Series-Diesel-Engine-Manual&p=12228&viewfull=1#post12228) has the SD33T Supplement with all the information regarding stripping and rebuilding the SD33T engine.

This post here (http://www.nissanpatrol.com.au/forums/showthread.php?1136-SD-Series-Diesel-Engine-Manual&p=12224&viewfull=1#post12224) with the 3 manuals, relates to the SD33 engine (Non Turbo). Chances are it wasn't the manual called "SD33T Supplement" that you saw, so it wont have any information relating to the Turbo engine.

[Finly Owner]

ok that explains it. The top one I haven't opened yet as I was worried about the "rapid share" thing.

And the bottom one was as you said and I thought.

Thanks for straightening that out for me.

[Chops]

Sweet, glad that is sorted, I was beginning to think one of us was going batty. The RapidShare and MediaFire manuals I have uploaded, were all scanned before being uploaded, and should be virus free.

[Chops]

There is also another difference with SD33T engine over the SD33. The SD33T engine has oil squirter`s that shoot oil under the pistons around the skirts for lubrication.

[Alburypete]

Interesting read.

[Raty]

I fitted a T3 Turbo (11 lbs boost) + intercooler to SD33 n/a 21 yrs ago (280Ks) in my G60 ute no probs, now running last 30Ks SD33T with twin turbo's intercooler + LPG, over 450 NMs, runs like a clock..........

[taslucas]

I fitted a T3 Turbo (11 lbs boost) + intercooler to SD33 n/a 21 yrs ago (280Ks) in my G60 ute no probs, now running last 30Ks SD33T with twin turbo's intercooler + LPG, over 450 NMs, runs like a clock..........

Hi Raty, sounds like you have some valuable info on the concept. Would be much appreciated if you could share a bit more info on the matter. But first, can you jump over to the Introductions thread and introduce yourself and say hi and tell us a bit about yourself. Its just something we get all members to do:) Welcome to the forum anyway mate:)

[droppa]

raty this information you have will be on great value to some of us here, pics or even a build log, c'mon man, dont hog that info now......