Adapatations to run on unleaded.

Talk about the E-Type Series 2

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PAN4213
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#1 Adapatations to run on unleaded.

Post by PAN4213 » Tue Dec 04, 2018 1:44 pm

Hello all,

Will be starting the refurb of my series 2 soon.

Any adaptations I need to do for the car to run on unleaded?


thanks
Bill


Series 2.1969 2+2. US import.
Merc R107 300sl. 1989
S2, 2+2, 1969

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malcolm
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#2 Re: Adapatations to run on unleaded.

Post by malcolm » Tue Dec 04, 2018 1:59 pm

As far as I know, none. The valve seats are already hardened
Malcolm
I only fit in a 2+2, so got one!
1969 Series 2 2+2
2009 Jaguar XF-S

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64etype
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#3 Re: Adapatations to run on unleaded.

Post by 64etype » Tue Dec 04, 2018 4:02 pm

8:1 pistons?
Eric

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malcolm
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#4 Re: Adapatations to run on unleaded.

Post by malcolm » Tue Dec 04, 2018 4:17 pm

Don't think it matters whether it's 8:1 or 9:1, valve seats the same. You might want to wait and check with others on here who know more than I, but i'm reasonably confident that's right.
Malcolm
I only fit in a 2+2, so got one!
1969 Series 2 2+2
2009 Jaguar XF-S

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Mark Gordon
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#5 Re: Adapatations to run on unleaded.

Post by Mark Gordon » Tue Dec 04, 2018 7:16 pm

You're right, Malcolm. All E Types run just fine on unleaded. The only problem with modern fuels that some have experienced is due to EtOH in some of the blends: water vapor absorption leading to tank rusting and eating away at rubber components in the fuel lines. I've been running E10 (10% ethanol) for ten years without any problems.
Mark

67 OTS 1E14988, 2002 VDP

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64etype
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#6 Re: Adapatations to run on unleaded.

Post by 64etype » Tue Dec 04, 2018 7:23 pm

I was thinking about pinking due to generally lower octane ratings with unleaded.
Eric

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abowie
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#7 Re: Adapatations to run on unleaded.

Post by abowie » Tue Dec 04, 2018 11:34 pm

64etype wrote:
Tue Dec 04, 2018 7:23 pm
I was thinking about pinking due to generally lower octane ratings with unleaded.
Might be a problem if you have higher compression in your motor. I use 95 RON with no problems. My engines have around 160psi compression.

I had no end of trouble with a car with compression around 185/190psi and finally ended up fixing the problem by fitting a very thick head gasket and lowering the compression.

In general it is sensible to use 8:1 pistons if you rebuild, to compensate for skimming of the head and block.

As mentioned above the seats are already fine for ULP use.
Andrew.
881824, 1E21538. 889457..oops
http://www.projectetype.com/index.php/the-blog.html
Adelaide, Australia

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garrycol
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#8 Re: Adapatations to run on unleaded.

Post by garrycol » Wed Dec 05, 2018 12:44 am

64etype wrote:
Tue Dec 04, 2018 4:02 pm
8:1 pistons?
What do the pistons (compression ratio) have to do with running on unleaded or not - octane level of the fuel yes but not whether it is unleaded or not.

Sorry saw this later
64etype wrote:
Tue Dec 04, 2018 7:23 pm
I was thinking about pinking due to generally lower octane ratings with unleaded.
You just buy the unleaded fuel that has the octane rating to suit your engine. 98 Octane unleaded works fine in engines that required the old UK 5 Star.

cheers

garry
1971 Series 3 E-type OTS

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malcolm
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#9 Re: Adapatations to run on unleaded.

Post by malcolm » Wed Dec 05, 2018 9:19 am

Even octane rating doesn't seem that sensitive. I'm on 9:1 pistons. I buy the highest Octane I can, normally 97, but often 99 (Shell or Tesco) However, touring the backwaters of France and Spain I often had to settle for 95 and it ran fine.
Malcolm
I only fit in a 2+2, so got one!
1969 Series 2 2+2
2009 Jaguar XF-S

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PAN4213
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#10 Re: Adapatations to run on unleaded.

Post by PAN4213 » Wed Dec 05, 2018 1:51 pm

thank you loads everyone.

Rgds
Bill



Series 2. 2+2 1969 US import.
Merc R107 300SL
S2, 2+2, 1969

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