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tb42 straight gas + turbo q's

Tech Talk for Nissan owners.

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Posts: 236
Joined: Sat Apr 02, 2005 6:54 pm
Location: melbourne

tb42 straight gas + turbo q's

Post by blade828 »

i have got a 1988 tb42 carby which is on dual fuel at the moment. i havn't used pertol on this in a long time as i have never been able to getting it working properly. Do i need to put it into a gas shop to get changed to straight gas or can i remove the petrol stuff myself? what needs to be removed/changed? I also want to turbo charge it after its on straight gas. The engine has just clocked up 290k but i have never had problems with it and still runs perfect, should i rebuild the whole engine or just upgrade some parts or will the engine be ok? im sure i will have plenty more questions, thanks guys :D
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Joined: Tue Aug 16, 2005 10:02 pm
Location: Ferntree Gully. Melbourne.

Post by Rhysta »

look into Artificial_Aspirations build up thread. 'TB42 no longer boat anchor' or something.

Has a run down on what parts he used and what he did with his turbo, might be a good place to start. Seems there was a bit of fab work for his manifolds etc but other wise reasonably straight forward.

;)
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Posts: 236
Joined: Sat Apr 02, 2005 6:54 pm
Location: melbourne

Post by blade828 »

yeah i have had a look at his thread and a few others which have gave me some idea's. Mostly wondering if i should rebuild or not, because if i dont then that leaves me more to spend on the gas and turbo set up.
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Joined: Tue Jul 18, 2006 6:31 pm
Location: Brisbane

Post by Artificial_Aspiration »

BOOST it first, my Last GQ did over 450000km when I sold it and It still wasn't useing oil. If anything I would get the Head rebuilt, valves, seals guides, seats and decked
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Posts: 236
Joined: Sat Apr 02, 2005 6:54 pm
Location: melbourne

Post by blade828 »

thanks mate, i have heard of these motor's getting boosted with high km's and still running fine. Would 6-8psi be reasonable? I would most likely get the usual head mods done to suit straight gas.
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Posts: 39
Joined: Tue Jul 18, 2006 6:31 pm
Location: Brisbane

Post by Artificial_Aspiration »

run 8 to 10
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Post by Shorty40 »

Artificial_Aspiration wrote:If anything I would get the Head rebuilt, valves, seals guides, seats and decked
What should that cost ? Ballpark .........
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Posts: 236
Joined: Sat Apr 02, 2005 6:54 pm
Location: melbourne

Post by blade828 »

Anyone have any idea if i can change my car from duel fuel to straight gas myself? I have currently got the Impco 300a mixer and a 'L' converter in there for the gas, would this be suitable for a turbo set-up or should i get something else?
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