[s-cars] Update on my 20V motor with pictures (Ned, Mihnea, et al)

[James Bufkin]

Hi Ned,
Thanks for replying.


>One item is that the exhaust manifold may not be an RS2, but appears to
>be the predecessor to it.  I imported 10 of the predecessor from Lehmann
>in 1991/92.  Notice that the holes for mounting the manifold do not
>appear to be spot faced like with the RS2, and probably does not have
>the RS2 part number.
I'll go check later today.   What are the intrinsic differences between the 
two?

>Another item that I cannot see in any picture is the Driver's side rear
>of the block.  There was the aluminum block Sport Quattro, and then the
>special alloy Lehmann aluminum block without the 2" crankcase breather
>hole.  The group B rally cars used the Lehmann aluminum block, that were
>cast from Lehmann's patterns.  The ones that I've seen were painted red.

Do you recall if that ECU I sent you was a stock 3B ECU?  Or was it an RR?
Either way, would you say it is really meant for 9.3:1 compression 
ratio.  If thats the case could that cause a horsepower deficiency like I 
am seeing?

My block isn't red obviously. LOL   I'll check the back like you said.

I'm going to use ARP head studs to protect the threads in the block.  THey 
recommend using a thread locker type product which will also inherently 
seal the passages around the head studs.

Who is Hohnester and which Lehmann manifold are you talking about?

Thanks,
James