10A engine

> Bruce,
> Are you familiar with the 10A enough to give some details on it.
> George ( down under)
> ======================
> I have rebuilt a few.
> I had a 1970 R100.
> Only 600 were imported into the USA.
> That was the first year.
> It was unusual in that it had a GEAR drive oil pump, unlike later
> engines with a chain drive.
> Nice cockpit.
> Just sold some rare two piece carbon apex seals for the 10A.
> Wad's up ?
>
> Bruce Toski

Bruce,
What was the weight of the 10A as compared to the 13B and what was the rotor
compression?
Pity they didn't stay with the gear drive oil pump!
George (down under)

Chamber disp. 491 cc
Equivalent disp. 119.7
CR 9.4:1
HP 110 at 7000
Torque 100 foot pounds at 4000 RPM
Same as early Cosmo

The engine weighed 198 pounds.
Some early engines had both side and p-ports.

From the Norbye book. My pictures. Not a 10A

Paul Lamar

=========================

A table of engine weights attached.
I don't think the R100 is that much lighter. Only weight savings would
be the 10mm skinnier cast iron rotors and eccentric shaft 20mm shorter.
Rotor housings are aluminum of course.

99% of the 10A engines had single carbon apex seals so compression not
as good as 12B and 13B engines.

Bruce Toski

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Subject: Re: WANTED: A list of engine weights From: "Bill Lewis" <bill@wrljet.com> Date: 1997/01/10 Message-Id: <01bbff32$52b71b00$0301a8c0@presario3.wrljet.com> References: <5b2nke$i5o@amanda.dorsai.org> Organization: Lamplighter Technologies Newsgroups: rec.autos.sport.tech Article Segment 1 of 4 (Get All 4 Segments)
Here's a file I got of the net somewhere along the way... /Bill Engine Weight FYI version 94.08.01 by Dave Williams, dave.williams@chaos.lrk.ar.us It isn't really a Frequently Asked Question, so I'll call it an "FYI", For Your Information. This was originally a list I'd compiled long ago on paper, then moved to the computer, then posted on the net as a response to some questions. It wound up being popular, but since I didn't keep track of the origin of the data there was some debate as to how accurate the list was. This new improved list has origins where I could find references; what doesn't have an origin is stuff from my original list. You'll sometimes see more than one weight listed. Some weights are for just a long block, some are complete and ready to run, and of course everything in between. Some engines varied in weight during their production runs - for example, some later Chevy V8s use thinwall blocks and aluminum heads. If you have any figures you'd like to contribute, please send them to me at one of the following addresses: dave.williams@chaos.lrk.ar.us weight engine pounds ref. comments Alfasud flat-4 240 (2) (19) "complete" Alfa Romeo SOHC V6 375 (2) Alfa Romeo 415/85T 279 (31) F1 four, '87 season AMC V8 540 (late design V8s) AMC V8 600 (early design V8s) AMC 6 500 (early design six - 199) Audi 2.0 L4 335 (2) Audi 5 364 (2) (non-turbo) Audi 80 1300 230 (2) Audi 100 1500 240 (2) Austin C-series L6 562 (2) ('56 Austin-Healey 100-6) BL "B" L4 OHV 335 (2) BL "E" L6 345 (2) ("complete") BL "O" L4 OHC 298 (2) BMW M52 3.3,3.5 Big Six 500 (2) BMW M60 B 40 4.0 V8 468 (17) BMW M60 Small Six 388 (2) BMW slant-6 turbodiesel 430 BMW 4.5L V12 607 (2) (50) "Fully dressed" prototype BMW 4.5L V12 974 (57) iron prototype BMW M105 Diesel 6 2.5L 430 (4) BMW 2.3 turbo Diesel 408 (21) iron block, alum head, "complete" BMW 5.0 V12 529 (22) (57) "fully dressed" BMW S14 four 350 (23) 318i motor Buick 1953 322 V8 635 (51) OHV V8 Buick 350 450 Buick 401 685 (1) ('59 Nail Head) Buick 430-455 V8 600 (one ref showed 640) (10 - 600) Buick 1963 odd-fire V6 414 (2) Buick V6 375 Buick 3.0 V6 '85-up 350 Buick/Rover 215 V8 318 (and Olds) Buick 1961 215 V8 324 (2) Cadillac V8 390 720 (1) ('59) Cadillac V8 472-500 625 Cadillac V8 500 595 (10) Cadillac V-16 1,300 (2) (1931) Cadillac 331 V8 699 (2) (1949) Callaway Indy HH-V8 277 (54) 2.6L Drake design Chevy Corvair flat 6 300 Chevy Sprint 993cc L4 147 (55) 24L x 20W x 25H (Suzuki mfr) Chevy 1.8-2.0 L4 302 (4) (39) "J car" pushrod Chevy Chevette 1.6 SOHC 300 (4) (39) (also Opel) Chevy Vega L4 285 Chevy II 153 L4 350 Chevy L6 194-250 440 Chevy L6 292 --- Chevy L6 216/235 630 (2) Chevy V6-90 229, 4.3 425 Chevy V6-60 2.8, 3.1 350 (2) Chevy small block V8 575 (generic for '60s-'70s motors) Chevy small block V8 535 (1) ('59 Corvette 283 w/alum. intake) Chevy V8 348/409 620 (1) Chevy big block V8 685 Mark IV Chevy big block V8 --- Mark V Chevy 454 675 (10) Chevy 427 ZL-1 550 (35) all-aluminum, "20# lighter than SB" Chrysler 2.2 L4 216 (6) (bare motor) Chrysler 413 wedge 640 (1) ('59 300-E) Chrysler 331 Hemi 745 (5) 1955 Citroen 2.0 Douvrin 4 263 Cosworth AC V8 ('93) 286 (23,64) 75 degree bank angle Cosworth HB 75 deg V8 309 (52,63) 23.4L x 23.3W x 20.5H Cosworth DFV V8 313 (23) 90 degree bank angle

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