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Thread: Dellorto DHLA40 N jetting

  1. #1
    Opeler Liviu is on a distinguished road
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    Dellorto DHLA40 N jetting

    Hy

    I have a pair of Dellorto's DHLA 40's N and want to use them on a 2.0 engine with a free flow exhaust and a 11.1 C.R.

    The carbs are jetted as follows
    Main jet: 130
    Emulsion tubes: 7772.10
    Air : 180

    Can i use the carbs with this jets or i have to rejet them. If so, what other jets would you recomend me.

  2. #2
    Cunning Linguist tekenaar will become famous soon enough tekenaar's Avatar
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    Hi-Compression 2.0 with twin DHLA40 jetting

    Quote Originally Posted by Liviu
    Hy

    I have a pair of Dellorto's DHLA 40's N and want to use them on a 2.0 engine with a free flow exhaust and a 11.1 C.R.

    The carbs are jetted as follows
    Main jet: 130
    Emulsion tubes: 7772.10
    Air : 180

    Can i use the carbs with these jets or do i have to rejet them. If so, what other jets would you recommend to me.
    Didn't see this before. Here's a good baseline jetting recommendation for your DHLA40s:

    34mm chokes
    35 accelerator pump jets
    140 main jets (richer)
    180 air correctors (no change)
    7772.10 emulsion tubes (no change)
    55 idle jets
    standard idle jet holder
    7848.3 auxiliary venturi
    1.50 needle and seats
    15mm float shutoff height
    25mm full drop float setting
    idle adjustment screws - 4 turns out from lightly seated

    Contact Gabrielle's site (Italy) for parts.


    1960: '61 Rekord PII 1.7 3S 3.9 '69 Kadett LS 'sprint' 1.9 3A 3.18
    1970: '70 GT 1.9 4S 3.44 '72 GT 2.2SSD 5S 3.44 '72 GT 2.4FI 5S 3.44P
    1970: '73 GT 1.9FI 4S 3.44 '75 1900 1.9FI 4S 3.44
    1980: '85 Bitter SC 3.9FI 5S 3.44P
    2000: '09 Solstice GXP Coupe 2.0 SIDI VVT "Stage 2" Turbo 5S 3.73P

  3. #3
    Opeler BetaCarotene BetaCarotene's Avatar
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    what would you recommend on a 32/36 rejet

  4. #4
    1000 Post Club opeldean is on a distinguished road opeldean's Avatar
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    tekenaar jets for the weber 32-36

    betacarotene, do a search for "tekenaar jets" its listed several times here on this site, i cant remember from memory
    Thank you members of opelgt.com for helping me on a 5 year reconstruction of the most beautiful car in the world
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  5. #5
    Project 1450 supporter... RallyBob has a spectacular aura about RallyBob has a spectacular aura about RallyBob has a spectacular aura about RallyBob's Avatar
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    Remember too that your modifications affect the jetting. High compression or low compression engine? Stock cam? Stock exhaust? Ported intake? Your altitude is critical too, higher elevations require less fuel to compensate for lower air density.

    Bob

  6. #6
    Cunning Linguist tekenaar will become famous soon enough tekenaar's Avatar
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    32/36 jetting . . . blast from the past!

    Quote Originally Posted by BetaCarotene
    what would you recommend on a 32/36 rejet
    Here's my recommends from over a year ago.


    1960: '61 Rekord PII 1.7 3S 3.9 '69 Kadett LS 'sprint' 1.9 3A 3.18
    1970: '70 GT 1.9 4S 3.44 '72 GT 2.2SSD 5S 3.44 '72 GT 2.4FI 5S 3.44P
    1970: '73 GT 1.9FI 4S 3.44 '75 1900 1.9FI 4S 3.44
    1980: '85 Bitter SC 3.9FI 5S 3.44P
    2000: '09 Solstice GXP Coupe 2.0 SIDI VVT "Stage 2" Turbo 5S 3.73P

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