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nick, bear in mind that youve got a high compresison bottom end + head setup at the moment...... so id say a MAX of about 3psi boost would be sensible given the current setup....
Its going to be either pistons or the gay spacer plate (dont think cometic make a small block 8v gasket (although the 16v might work if made))
The Dellorto DHLA's are OE spec.They've come straight off a lotus Esprit Turbo.Quote:
Originally Posted by Last Of The Nova SR'S
Stuart, surely i can run about 8-10psi using a spacer plate ?
Yes you will be able to with a spacer plate.
if the bottom ends strong enough i dont see why he cant run 5-8psi now, without lowering th ecompression?
Its strength isn't the issue.
The compression ratio is.
Nick-Do you know what your CR was? I presume the head was skimmed when it was fitted too?
having a high compression onyl makes it unreliable with high amount of psi doesnt it?
I mean if you really wanted you could bolt a blower on and run 30psi, sure it would last 5 mins but it would hold 30psi wouldnt it?
Not so much unreliable, more fooked.
Probably last a few seconds until temps went that high, it just detted and holed pistons, fooked valves etc,Lol.
Im pretty sure a LETs CR is only about 9:1, which isn't massively low.
iirc theyre 8.5:1.
I know this is a different ball game completely, but my mate had a mg zr 1.4 16v, k series. he had a turbo puton that, on standard hg, standard cr, and that used to hold 6-7psi.
I'm not sure what my C-R is, i've still not got all the report from the place who built it !
The Block was Decked, and the Head skimmed.. that's all i know !
Aye, so thats put your CR higher than normal. The original CR is 10:1 iirc.