stanley sweet
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« Reply #15 on: 09 March, 2012, 09:26:14 AM » |
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Thanks for that Brian. I'll bear it in mind and look out for those versions you mention..
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1971 Fulvia 1.3S 'Leggera' 1999 Lancia Lybra 1.9JTD LX SW
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dhla40
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« Reply #16 on: 09 March, 2012, 04:53:50 PM » |
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Hi Stanley
I presume the car you ran with the airbox mods was a 1.3s with solex 35's and 31mm chokes? If so did you retain the standard jetting or make any changes.
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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Neil
Rebel Poster
Posts: 958
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« Reply #17 on: 09 March, 2012, 05:17:38 PM » |
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Brian, definitely DHLB 35s on a 1.3, as found on my coupe, just slightly bigger version of your 32s, not the wider bodied DHLAs which start at 40mm (?) upwards.
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Neil
386
1973 Fulvia S2 1.3
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fay66
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« Reply #18 on: 09 March, 2012, 10:32:03 PM » |
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Brian, definitely DHLB 35s on a 1.3, as found on my coupe, just slightly bigger version of your 32s, not the wider bodied DHLAs which start at 40mm (?) upwards.
Neil. Thanks for the clarification  Brian 8227  |
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Own 1966 Fulvia 2C Berlina since 1997, back on road 11-1999.Known as "Fay"
1999 Suzuki Wagon R+ GL, now my daughters
2006 Renault Megane 1 5 Dci Sports Tourer
Dedra Technical Adviser
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stanley sweet
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« Reply #19 on: 13 March, 2012, 07:10:00 PM » |
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Yes - it's a 1.3S on standard Solex 35's. I didn't make any other changes to the carbs. It was sprinted, hillclimbed and was pounded along roads all day long to places like Corsica from the UK - and no horrors like overheated pistons. At the time all those years ago it was based semi-scientifically on lap times around Goodwood and other circuits, speed at the end of the straight etc. For instance I remember trying out just open trumpets for one session and found it couldn't reach maximum revs on the straight. I replaced the filter etc and the revs came back. I've never worked out whether the mixture was too lean or the carbs were sucking in hot air from the rad? I just found this solution quite a good compromise - it just seemed to rev more freely and could still attain maximum revs. Be interesting for someone else to try it just to see if I'm hallucinating.
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1971 Fulvia 1.3S 'Leggera' 1999 Lancia Lybra 1.9JTD LX SW
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lancialulu
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« Reply #20 on: 14 March, 2012, 11:23:54 AM » |
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Maximum revs being what?
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Its not the winning but taking part! or is it taking apart?
1955 Aurelia B12
1967 Flavia Vignale iniezione
1967 Fulvia 1.3HFR
1972 Fulvia 1600HF
1972 Fulvia 1600HF
1972 1600 Fulvia Sport
1979 2500 Gamma Coupe
1988 Delta 1.6GTi
1998 Zeta
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stanley sweet
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« Reply #21 on: 14 March, 2012, 12:53:42 PM » |
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From memory it was a self-imposed 6200 I think. Seem to remember it was struggling to reach 6000 - it just reached a point and stayed there even with my foot flat down. The figures might not be exact - I'm going back a good few years and it's only had road use since but it was having trouble finding the last few hundred revs. That was just with the cold intake removed with the standard (quite crude) intake trumpets. Strange thing was some time later I was at a Lancia Club trackday and overheard someone saying they were running their 1600 Fulvia on open trumpets for the first time and they couldn't get top revs on the straight. I told them what had happened to me. What do you think? Intake air too hot, mixture too lean or both? You raced yours didn't you? Be interesting to hear your opinion.
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1971 Fulvia 1.3S 'Leggera' 1999 Lancia Lybra 1.9JTD LX SW
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angelorange
Megaposter
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« Reply #22 on: 15 March, 2012, 06:17:39 PM » |
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VEry good double mesh Weber filters and a proper Ally support bar underneath for carbs:
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I'm entitled to my ignorance!
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rogerelias
Rebel Poster
Posts: 946
MY 1600HF IN HEARTBEAT GARAGE
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« Reply #23 on: 15 March, 2012, 06:35:03 PM » |
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And standard jetting  |
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FULVIA 1600HF LUSSO
1958 VELOCETTE MAC
Triumph Bonneville t120v 1972
1968 MGC ROADSTER
1958 Series 2 Appia berlina
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stanley sweet
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« Reply #24 on: 16 March, 2012, 10:24:22 AM » |
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They look like a type I saw recently on the Demon Tweeks site I think. Are they a push fit onto the trumpets? Be nice if they existed for properly rounded 35 trumpets.
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1971 Fulvia 1.3S 'Leggera' 1999 Lancia Lybra 1.9JTD LX SW
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fay66
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« Reply #25 on: 16 March, 2012, 11:29:52 AM » |
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They look like a type I saw recently on the Demon Tweeks site I think. Are they a push fit onto the trumpets? Be nice if they existed for properly rounded 35 trumpets.
They look to me like they are fitted in place of the trumpets and bolt directly to the carburettor bodies? Brian 8227 |
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Own 1966 Fulvia 2C Berlina since 1997, back on road 11-1999.Known as "Fay"
1999 Suzuki Wagon R+ GL, now my daughters
2006 Renault Megane 1 5 Dci Sports Tourer
Dedra Technical Adviser
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