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Renault
Gordini 807-20 Engine |
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Built up from an Renault
Gordini R17 807-13 engine |
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Installed in my 1971 S2
Europa |
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77mm x 84mm |
1565 cc displacement (
95.5 ci ) |
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125 HP @ 6800 RPM ? |
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Original Build and First
Rebuild Modifications: |
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1 |
All new gaskets and seals |
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2 |
New valve guides |
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3 |
New
3 angle valve seats |
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4 |
New 35.35mm ( 1.39" ) exhaust
valves |
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5 |
New 42.1mm ( 1.66" ) intake
valves |
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6 |
New 77mm pistons, Pins, Rings,
10.25:1 compression, weight equalized |
7 |
New piston liners |
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8 |
High capacity oil pump with new
rotor |
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9 |
New timing chain and sprockets |
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10 |
Resurfaced lifters |
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11 |
Reground cam, 292 degrees duration
40/72 72/40, .395" valve lift |
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12 |
Aluminum flywheel |
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13 |
2 - 45DCOE carbs.with aluminum
intake |
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14 |
New 1½" into 2" header w/
Jethot coating |
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15 |
New lightweight starter |
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16 |
New alloy alternator pulley |
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17 |
806-G distributor with mechanical
advance and hall effect points |
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18 |
All
intake and exhaust runners "street" ported and port matched |
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19 |
Prepared connecting rods, polished,
lightened, weight equalized and sized |
20 |
Full floating 21mm wrist pins |
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21 |
New ARP rod bolts |
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22 |
Alloy valve cover |
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23 |
Resized crankshaft main and rod
journals to -.010", micro polished |
24 |
New .010" Vandervell rod and
main bearings |
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25 |
"Short nose" balanced
crankshaft and flywheel |
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26 |
Alloy baffled and gated sump |
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27 |
Align honed block and main caps |
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28 |
Electric fuel pump, new alloy
closing plate on block |
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29 |
New 821 front engine cover |
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30 |
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31 |
2006 Winter
Modifications: |
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32 |
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33 |
All new gaskets and seals |
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34 |
New chain and sprockets for cam
drive |
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35 |
New (NOS) engine block align bored |
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36 |
All intake runners port matched
better |
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37 |
New -.010" Vandervell rod and
main bearings |
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38 |
Modify oil pump relief valve spring
for increased oil pressure |
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39 |
Install new 77.8 mm forged pistons
for new 1597 cc displacement ( 97.5 ci ) |
40 |
Install new titanium spring
retainers |
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41 |
Install used lighter lifters |
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42 |
Install used higher rate
valve springs |
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43 |
Modify existing rockers to lower
moment of inertia |
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44 |
Magniflux rods and crank |
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45 |
Completely rebalance engine
including clutch pressure plate |
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46 |
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47 |
130 HP @ 7200 RPM with a
7500 RPM rev limit ? |
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