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45's versus 40's on a 130TC
Posted: August 3rd, 2006, 5:44 pm
by sumplug
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.
Posted: August 8th, 2006, 7:42 am
by sumplug
Hi Guy.
Just wondering if you have read this yet?
Andy.
Posted: August 8th, 2006, 7:50 am
by Guy Croft
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
Posted: August 8th, 2006, 9:27 am
by Testament
What size chokes do the 40's on a 130TC have?
Posted: August 8th, 2006, 9:48 am
by Guy Croft
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
Posted: August 8th, 2006, 4:51 pm
by Slawo2000
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.
Posted: August 8th, 2006, 4:54 pm
by Guy Croft
Well done Slawomir, thanks very much indeed,
GC