I just had a conversation with someone who is "in the know", who told me that the early 90's carbed Mini Sprite was fitted with a low compression & low powered engine, that was different from other 1275 models in the range. This is "news" to me, although it would explain why my '93 sprite was described as "underpowered" by the guy at the rolling road!! Has anybody else heard of this? If so, what sort of compression/bhp difference should there be between the sprite engine and a standard 1275?

Low Compression Sprite Engine?
Started by
AVV IT
, Oct 19 2010 07:18 PM
2 replies to this topic
#1
Posted 19 October 2010 - 07:18 PM
#2
Posted 19 October 2010 - 07:21 PM
the sprite engine i laid my hands on a while back had a HIF38 carb and a 998 cam! No idea on compression i'm afraid.
#3
Posted 19 October 2010 - 07:54 PM
Non cooper models have a base specification cam, and it is not the 998 cam, but that is another story. The compression ratio was 9.4:1
The cooper models had a slightly sportier cam compared to the non cooper models with increased compression ratio of 10:1. The combination of this with a slightly richer full throttle fueling and the ever so slightly shorter 3.2:1 final drive made the cooper models feel that bit more lively with a stated 10hp advantage over the non cooper models
there has been many 'standard' 1275 engines all of which have different power oputputs. A 'standard' 90's 1275 is the sprite model with a labled 53hp.
This has been covered many many, many times
The cooper models had a slightly sportier cam compared to the non cooper models with increased compression ratio of 10:1. The combination of this with a slightly richer full throttle fueling and the ever so slightly shorter 3.2:1 final drive made the cooper models feel that bit more lively with a stated 10hp advantage over the non cooper models
there has been many 'standard' 1275 engines all of which have different power oputputs. A 'standard' 90's 1275 is the sprite model with a labled 53hp.
This has been covered many many, many times
Edited by Sprocket, 19 October 2010 - 07:56 PM.
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