12ht

Submitted: Thursday, Sep 13, 2007 at 11:05

ThreadID: 49618 Views:2495 Replies:2 FollowUps:4

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Member - Douglas M (SA)

Hi All
I have seen the 12-HT motor mentioned in posts. 1HZ, 1HD-T, 1HD-FT and 1HD-FTE are the motors that I am aware of that are used in the 80 and 100 series Landcruisers. Where does the 12HT fit in here?
Doug Mac

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Reply By: Ingtar - Thursday, Sep 13, 2007 at 11:11

Thursday, Sep 13, 2007 at 11:11

12HT was the factory turbo in the 60 series Landcruiser. Many regard it as one of the strongest turbo engines they made.

AnswerID: 261865

Follow Up By: Member - BIGMARK (QLD) - Thursday, Sep 13, 2007 at 18:02

Thursday, Sep 13, 2007 at 18:02

I had a 1988 HJ61 SAHARA with 12HT and agree it was the best motor ever built.

FollowupID: 523380

Reply By: Member - Shane D (QLD) - Thursday, Sep 13, 2007 at 11:37

Thursday, Sep 13, 2007 at 11:37

The 12HT was a beefed up 2H,and got most of its performance gains from having direct injection,yes it was turbo,but only ran 6-8 PSI boost,bottom ends where there achiles heel and Toyota still where worried about this when it released the 1HD-FTE 15 years later(thats why 100 series T/D where a long time coming).
The 1HD-T replaced the 12HT but had more bottom end failures.
There are places out there that know how to "tune" 'em and get them really cracking.
Shane

AnswerID: 261872