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| Joined: | 03-11-2005 |
| Location: | San Anselmo, California USA |
| Posts: | 983 |
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I think you will be close with Lotus (emission) Spec 9 to get it running and can tweak from there. I would probably start with a 7850.2 idle jet holder and a 58 or 60 idle jet. You won't have any problem with fuel atomization in 38mm chokes at high RPM.
From the Dave Andrews website: http://members.aol.com/dvandrews/dellorto.htm the Main Emulsion tube should be a 7772.5. This should keep you in the main jet circuit while your on the track.
Adjust main jets maybe up to 180?? for your preferred CO level probably around 4 to 5%. A onboard CO meter would be an immense help in tuning so you can check while on the power at speed.
good luck, Kurt
From our good friend at the Esprit S1S2S3 list at Yahoo:
Spec 9 is about right if you have a mildly warmed up 2.2 liter.
9.5:1 or 10:1 compression, up to 104 cams, headers.
Carb Type ...................... DHLA 45E
Choke .............................. 37 mm
Main Jet .......................... 160
Main Air Corrector Jet ... 230
Main Emulsion Tube ...... 7772-8
Idle Jet ............................. 55 (maybe a little lean, try up to
58)
Idle Jet Holder ................. 7850-9
Float Weight .................... 8.5 gr
Float Setting Height ........ 14.5 - 15.0 mm
Float Needle Valve ......... 170
Pump Jet .......................... 50H
Starter Jet ......................... 95
Starter Emulsion Tube ..... 7482-3
Power Jet .......................... ---
Slow Running Speed ....... 900 - 1000 rpm
Idle CO Level (hot) ........... 0.7 - 1.5%
Last edited on 06-20-2007 03:40 am by Jensen Healey