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Author Topic: Jetting on standard DATR/DAT type Carb  (Read 7146 times)

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Offline Ferrit

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Re: Jetting on standard DATR/DAT type Carb
« Reply #20 on: April 08, 2026, 12:24:42 PM »
Did  that and its soo much better now.   8)  Thank you for this post and help

New plugs coming today and I will check timing again.
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Offline Ferrit

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Re: Jetting on standard DATR/DAT type Carb
« Reply #21 on: April 08, 2026, 11:10:04 PM »
Capriblu  OMG what a difference!

https://youtube.com/shorts/dfvTMwgMbIA?si=IC9VXpw3XlDOrWcJ

Even no choke semi cold silly low tickover if just ran.  I owe you a coffee.

It will be interesting what the dyno people do with it now
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Lancia Beta Coupe 2000 SA import, now project
VW Caravelle t5.1 was project
Merc EQA

Online SanRemo78

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Re: Jetting on standard DATR/DAT type Carb
« Reply #22 on: April 09, 2026, 09:51:10 AM »
I think the dyne people will but the air filter lid on and send you on your way. That sounds really sweet!
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Offline Ferrit

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Re: Jetting on standard DATR/DAT type Carb
« Reply #23 on: April 09, 2026, 10:27:29 AM »
 ;D

That is music to my ears Guy, because it = cheaper. :-)

They said that if everything else is good (after a check) they would run a full power test.  Maybe I should 'open a book' and take bets on my cars max power output?  Anything North of 100 will be a start ;-)
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Lancia Beta Coupe 2000 SA import, now project
VW Caravelle t5.1 was project
Merc EQA

Offline Ferrit

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Re: Jetting on standard DATR/DAT type Carb
« Reply #24 on: April 22, 2026, 02:28:39 PM »
Latest jetting from Harding dyno work

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Lancia Beta Coupe 2000 SA import, now project
VW Caravelle t5.1 was project
Merc EQA

Offline lancialulu

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Re: Jetting on standard DATR/DAT type Carb
« Reply #25 on: April 22, 2026, 04:51:19 PM »
If you are running the latest, I would check the plug colour after a 50 mile motorway drive, as it could be too lean??
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Offline Ferrit

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Re: Jetting on standard DATR/DAT type Carb
« Reply #26 on: April 22, 2026, 06:45:03 PM »
Based on?  This was after a few runs on a dyno and monitored AFR.  I will of course being checking plugs
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Lancia Beta Coupe 2000 SA import, now project
VW Caravelle t5.1 was project
Merc EQA

Offline lancialulu

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Re: Jetting on standard DATR/DAT type Carb
« Reply #27 on: April 22, 2026, 09:05:56 PM »
Always worried when main jet is lower than OEM. You need to run rich at high rpm as fuel cools the engine just saying...

Tim
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Offline A Ross

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Re: Jetting on standard DATR/DAT type Carb
« Reply #28 on: April 22, 2026, 11:04:26 PM »
Wow Mark - she's positively purring in that Youtube clip! I am preparing to have the same done to my Berlina which is running far too rich.
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Offline Ferrit

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Re: Jetting on standard DATR/DAT type Carb
« Reply #29 on: April 23, 2026, 08:41:17 AM »
This was on the one but last runs with the their recommended jetting

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Lancia Beta Coupe 2000 SA import, now project
VW Caravelle t5.1 was project
Merc EQA
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