right me and a mate at work have had quite a long runing disagreement about what the cosworth lump was developed from!

mate said it is basically a pinto, i said not!

who is right? if it is how? and if it isnt whats it been developed from (if cosworth based it on anything when designing it)

 

yep.. pinto block!

 

The Cosworth YB lump WAS developed from a Pinto......

 

The 16 valve head/turbo combination was originally an "in house"" Cosworth Engineering project..untill Ford boss was i'ts potential for motorsport - specifically touring car series.

 

see thats the buit that confuses me...

what is a YB?

not sure what the codes are

whats the N/A ones and whats are the turboed ones?

 

Cosworth internal project code...thats all no other significance.

 

Dont forget, we talking BLOCK ONLY and the word is DEVELOPED FROM, the old 205 cossie blocks basicly was hand picked Pintos, but all internals are totaly different, and later 200 blocks are NOT pinto blocks.

But yea, the cossie block originated from the Pinto block.

The HEAD is nothing to do with pintos at all, of course (but can be fitted to a pinto block)

 

As Doug says - internal project name:

https://passionford.com/forum/viewtopic.php?t=79267

 

1982 (year) YAA was a Cosworth financed 16V head on Ford T88/pinto block, no turbo - it was intended for TVR and aftermarket sales.

In 1984 ford comissioned the above engine with a turbo - Cosworth internal ref: YBB

 

there wsas a massive article in fast ford bout 6months ago on cossies and yb's... went into plenty of detail about how both came to be

 

cossies were first developed running over 300bhp and HAD to be DE-Tuned as insurance companys were going off one one cos of the theft/factor ratio

or so roumour has it?!

this has ben an old wifes tale for years up this way.......... anyone know different (FOR DEFANITE!!!) ????

Sean ( ???????!!!!!!!!!!!!)

 

Incidentally the cossy YB motor was designed by Mario Illien(went on to become one half of ILLMOR engines)......

 

I am led to believe the cosworth originally found that the engine in the spec requested was producing "more" than 200bhp, ford requested them to reduce this to below 200 for insurance/reliability reasons, this they could not achieve and the first cossies left the factory with a quoted 204bhp.
steve

 

I heard the YB is a std 300hp engine, ford wanted it detuned and Cosworth made it 204hp as that was as low as it could go and still maintain a good idle speed.

 

its a 300 hp engine not running 300hp in a standard car