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Rolling Road Tune
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Topic: Rolling Road Tune (Read 2650 times)
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Beckerman67
Member
Posts: 83
Rolling Road Tune
«
on:
25 September, 2021, 10:34:32 AM »
1972 Fulvia Coupe 1.3s S2
Before tune - engine standard except for 123 electronic ignition and ITG foam air filter:
BHP 72.7
Max power at 5280 rpm
Torque 78.3 lbf.ft at 4335 rpm
After tune - main jets changed from standard 120 to 130 and timing adjusted:
BHP 86.1
Max power at 6405 rpm
Torque 78.8 lbf.ft at 4800 rpm
Rolling.pdf
(1946.06 KB - downloaded 138 times.)
«
Last Edit: 25 September, 2021, 10:45:03 AM by Beckerman67
»
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davidwheeler
Permanent resident
Posts: 1485
Re: Rolling Road Tune
«
Reply #1 on:
26 September, 2021, 09:45:32 PM »
Worth spending the bob or two then! I gather modern petrol is of a different viscosity. I have enlarged the "slow running" jets and improved pick up and have often wondered about the mains...
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David Wheeler. Lambdas, Aprilia, Fulvia Sport.(formerly Appia and Thema as well).
Mikenoangelo
Megaposter
Posts: 465
Re: Rolling Road Tune
«
Reply #2 on:
27 September, 2021, 07:27:03 AM »
Much higher rpm "after". Could it not achieve 6400rpm before?
Mike
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dhla40
Senior Member
Posts: 189
Re: Rolling Road Tune
«
Reply #3 on:
27 September, 2021, 08:26:48 AM »
Dd you retain the standard 180 air correctors? I presume the power figures are at the wheels.
Sean
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1976 1.3s coupe
1973 1.3s coupe
1982 montecarlo project
1976 alfa GT
1981 alfa spider
dhla40
Senior Member
Posts: 189
Re: Rolling Road Tune
«
Reply #4 on:
27 September, 2021, 09:16:43 AM »
I was thinking Lancias book figure of 90hp may be optimistic, what timing max advance did you settle on?
Sean
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1976 1.3s coupe
1973 1.3s coupe
1982 montecarlo project
1976 alfa GT
1981 alfa spider
dhla40
Senior Member
Posts: 189
Re: Rolling Road Tune
«
Reply #5 on:
27 September, 2021, 09:29:18 AM »
Excellent, thats about what I am using, but with 125 main 165 air.
Sean
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1976 1.3s coupe
1973 1.3s coupe
1982 montecarlo project
1976 alfa GT
1981 alfa spider
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