big turbo escos or small turbo escos??

just wondering as i'm about to start on my engine, its a small turbo engine on standard pistons but due a re-bore (.5mm) would i be better to re-bore & use this block or start afresh with a normall 200 block?

 

they both the same are they not????????????

 

Think the blocks are the same mate.....

 

Small turbo has different oil spray jets that spray up the cylinders they screw directly to the block.
I have heard its slightly better but dont know for shure.

 

i know the oil spray jets are diff - and i know naff al about YB's!

 

the small turbo eek4 block is the best

 

go for a rs 500 205 small core plug block. best off the best

 

why is that then?

 

Took the words right out of my mouth there Kev

 

thick wall block like the 200 block but only older cast gets stronger the older it is iam lead to belive .

 

Flex rating is higher on the RS500 205 block over the 200 block isn't it?

Although the flex rating on the 200 block is still over 600bhp IIRC.

 

i was going to get a new 200 block & the spray bar etc...
but a few people have told me the eec 4 block with the spray jets is better to keep, just wanted to see peoples views.

 

my engine is an eek4 block.....no idea about castigs ageing and being better but i,d rather have my 1996 eek 4 block than a 1987 500 block

 

Point!

 

Lot to be said for a remachined old block as opposed to a brand new one.

The block is cast, then it is bored, then over time it settles and goes out of shape a little, if you then rebore it then, its already settled and doesnt move again.

Certain manufacturers deliberately use very old blocks for this reason, they cast them and then leave them for years before use, famously including the monster turbo blocks that BMW used in F1, although they went a little furter, rumour has it they used to piss on them as well to encourage the blocks to age!

 

i swap ya for a mint 2nd hand 200 block
i need eec4 block cuz of spray jets n dry sump set up
ya neva no wen ya gona need a spare

 

EECIVs .

 

whilst on the subject, who could do some nice porting & re-furb the head???

 

NOT VULCAN

 

Harvey Gibbs @ SCS 0n 01733 576 614