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brianc

Stevens X180 - HC engines

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Quick question...

 

I see from the owners handbook for my 1988 X180 normally aspirated car that the compression ratio of the engine is quoted as 10.9:1.

 

I know that there was an HC engine produced around 1987-1988 for the last of the G series cars.  Did this ever make it into the Stevens cars and what was the compression raised to?

 

Just idle curiosity...

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I was under the impression the Giugiaro HC unit was the same one developed ready for the X180 shape. It was just put into the final few G Turbos in the run-up to body shape change............... Happy to be corrected. I'm sure I read once there were approx 68 G HC Turbos built.

Edited by nello

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Ahhh...

 

So the engine in the X180 is the HC variant then!  Well that answers my question, thanks.

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I'm pretty sure so Brian yes though again happy to be corrected by someone more knowledgeable. By '86 the G shape was getting on a bit and the restyle bodywise was required to keep the product going, though I think one of the the other main drivers for change/improvement was driven mechanically by the Citroen/Maserati gearbox and its ability to handle the ongoing quest for more power. Ironically enough it was also ultimately the follow-on Renault box ceasing production that stopped the Esprit's life story.

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X180 is none turbo correct me if i am wrong.

andy b

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X180 is designation for the Stevens redesign I believe so both NA and Turbo unless I'm mistaken.

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Quick question...

 

I see from the owners handbook for my 1988 X180 normally aspirated car that the compression ratio of the engine is quoted as 10.9:1.

 

I know that there was an HC engine produced around 1987-1988 for the last of the G series cars.  Did this ever make it into the Stevens cars and what was the compression raised to?

 

Just idle curiosity...

The HC turbo engine had a compression ratio of 8.0 to 1.

Originally the turbo was at 7.5 to 1, or some such. 

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So does this mean the turbocharged engine runs a lower compression ratio than the normally aspirated? Useful info if that's the case

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Didn't know that.  Useful info as I assume that means that some engine components will be marginally different.

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