CVCC models
06-29-2004, 04:04 AM
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CVCC models
Those 3 valve CVCC Civics & Citys were pretty unique looking. 
http://www.honda.co.jp/HOT/ModelData...10a/index.html
http://translate.google.com/translat...D%26ie%3DUTF-8
http://www.honda.co.jp/HOT/ModelData...10a/index.html
http://translate.google.com/translat...D%26ie%3DUTF-8
06-30-2004, 04:34 AM
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I never thought of it that way, but yes, the City Turbo was unique in being a turbocharged factory Honda. As a side note the City Turbo, and the early CRX used the 3 valve CVCC engine too. 1986/87 was when this engine gave way to Honda's 4 valve 4 cyl in the revised CRX.
06-30-2004, 10:03 AM
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CVCC (Compound Vortex Controlled Combustion) was used through the '87 model year. One of the things that made the '85-87 CRX Si and '86-87 Civic Si a great little car was the fact that fuel injection allowed them to be the first Civics without CVCC in a long time. Unfortunately most of the 88+ guys have no idea what CVCC is.
06-30-2004, 12:21 PM
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Yeah, except for the whole "slow" thing. 
Are you sure the City Turbo had a CVCC head? I could have sworn they used a standard head with a primitave PGM-FI system.
Are you sure the City Turbo had a CVCC head? I could have sworn they used a standard head with a primitave PGM-FI system.
07-04-2004, 02:50 AM
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The German site lists the CVCC for both City Turbo I & II, but I think only City Turbo I (which was a carb car if memory serves) had CVCC, the fuel injected City Turbo II didn't have CVCC.
CVCC was a neat solution for its day with a stratified or segmented combustion chamber which had a big part of the chamber with a lean fuel mix and a small part with a rich mix, I think it was the first "lean burn" engine. It got a lot of attention in the 70s in connection with the original Civic, Accord, Prelude ranges, more for it's economy and ability to pass emissions without hand on devices rather than sheer performance. I think many people at the time didn't realise it had 3 valves per cylinder, given two was the norm. Also I don't think many realised that CVCC lived on well into the 1980s. The thing was that the 70s cars wore their CVCC badge proudly on the front grille.
CVCC was a neat solution for its day with a stratified or segmented combustion chamber which had a big part of the chamber with a lean fuel mix and a small part with a rich mix, I think it was the first "lean burn" engine. It got a lot of attention in the 70s in connection with the original Civic, Accord, Prelude ranges, more for it's economy and ability to pass emissions without hand on devices rather than sheer performance. I think many people at the time didn't realise it had 3 valves per cylinder, given two was the norm. Also I don't think many realised that CVCC lived on well into the 1980s. The thing was that the 70s cars wore their CVCC badge proudly on the front grille.
07-04-2004, 07:26 AM
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I remember those old '70s CVCC cars from when I was a child. We used to call them civics long before there was a Honda Civic. My dad was the first person I heard call them that. I always assumed that Honda picked up on that and actually started just calling the car a Civic. Sort like how 'cuda evolved from a nickname for the Barracuda into its own model, the top of the line Barracuda.
07-04-2004, 09:46 AM
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Uhh... The 600 series (the pre-Civics) didn't have a CVCC engine. They used a reworked motorcycle V-twin. Starting in '73, there was a regular model Civic. CVCC was introduced in the Civic body in the third year or so of Civic production.