45's versus 40's on a 130TC

sumplug · Post by **sumplug** » August 3rd, 2006, 5:44 pm

Hi Guy.
iam due to port my 130tc head, and i know the 40's are near their limits. But,when is it advisable to swap over to 45's? Presently got fitted solex ADDHE 40's. How much difference will 45's make and what chokes and jets do you recommend with standard cams?

Andy.

sumplug · Post by **sumplug** » August 8th, 2006, 7:42 am

Hi Guy.
Just wondering if you have read this yet?

Andy.

Post by **Guy Croft** » August 8th, 2006, 7:50 am

Yes, I have, but I don't sit glued to the computer. The answer is I'd only use 40s on a standard 2 liter but the reasons are more involved and I have not writen them yet. I do have a firm to run. Use pm or email in future for messages like this please.

GC

Testament · Post by **Testament** » August 8th, 2006, 9:27 am

What size chokes do the 40's on a 130TC have?

Post by **Guy Croft** » August 8th, 2006, 9:48 am

Good question, truth is I don't know either, suspect 32 or 34mm.

If someone has the full OE std spec jetting for 40 Solex and DCOE for the Fiat Abarth 130TC model please publish it here, ie:

Mains
Air correctors
Emulsion tubes
Idle jets
pump jets
Chokes

Thanks

GC

Slawo2000 · Post by **Slawo2000** » August 8th, 2006, 4:51 pm

Solex C40 ADDHE 27

Mains 1.45 mm
Air correctors 1.90 mm
Emulsion tubes AO4
Idle jets 0.54 mm
pump jets 0.45 mm
Chokes 32 mm

Weber DCOE 145/146

Mains 138
Air correctors 175
Emulsion tubes F41
Idle jets 58
pump jets 35
Chokes 32

Data come from Fiat Ritmo Manual, but unfortunately I don't know author. I have only a few pages copied.

Post by **Guy Croft** » August 8th, 2006, 4:54 pm

Well done Slawomir, thanks very much indeed,

GC

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45's versus 40's on a 130TC

45's versus 40's on a 130TC

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