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