: I have been trying to come up with a stout /6
: turbo combo and thought I would try using a
: 225 block/crank/rods with 2.2 turbo pistons.
: The block and head would be milled
: accordingly to get an 8 to 1 compression.
: SBC stainless valves,(1.75/1.45) and of
: course a ported head. For turbos I have 2
: Ford turbocoupe 2.3 Garretts. The exhaust is
: .48 and the compressor side is .60. I figure
: if a 225 can spin over 2 2.2 mopar turbos,
: this should work very well also. For exhaust
: I was thinking of a modified rear manifold
: with Doug's in front. I have a fairly large
: intercooler core and plan on putting the
: motor on propane(which I also have all the
: parts for.) My only question mark is the 2.2
: pistons. If my measurements are correct the
: stock piston(/6)sits about 140-150 in the
: hole. The compression height of the 2.2
: piston is 1.59, so the piston should end up
: about .310 in the hole before milling. I
: don't see a problem removing this difference
: from the block/head, but I want to be sure
: I'm not overlooking something. Any input
: would be appreciated.
: Tom

: I have been trying to come up with a stout /6
: turbo combo and thought I would try using a
: 225 block/crank/rods with 2.2 turbo pistons.
: The block and head would be milled
: accordingly to get an 8 to 1 compression.
: SBC stainless valves,(1.75/1.45) and of
: course a ported head. For turbos I have 2
: Ford turbocoupe 2.3 Garretts. The exhaust is
: .48 and the compressor side is .60. I figure
: if a 225 can spin over 2 2.2 mopar turbos,
: this should work very well also. For exhaust
: I was thinking of a modified rear manifold
: with Doug's in front. I have a fairly large
: intercooler core and plan on putting the
: motor on propane(which I also have all the
: parts for.) My only question mark is the 2.2
: pistons. If my measurements are correct the
: stock piston(/6)sits about 140-150 in the
: hole. The compression height of the 2.2
: piston is 1.59, so the piston should end up
: about .310 in the hole before milling. I
: don't see a problem removing this difference
: from the block/head, but I want to be sure
: I'm not overlooking something. Any input
: would be appreciated.
: Tom

: You are overlooking the 7 inch long 198
: connecting rods which are used with the 2.2
: pistons to get the compression ratio
: increase most racers are looking for.
: DD

: I realistically only need my 8 to 1 compression
: ratio back for the turbos, so I thought the
: block would only have to be decked about
: .150 or so. Seeing as though the /6 piston
: is 1.74 comp height, and the 2.2 is 1.59, I
: would only have to make up this amount. This
: would save me from having to buy the 198
: rods(which I sold like a fool last fall)and
: be able to use the plentiful 225 rods. Not
: to mention that the 225 rods should be
: stronger as they are considerably shorter.
: Doug, you also mentioned that your 2.2 turbo
: set-up spooled very quickly. Do you see any
: problem spooling two of these with the /6 ?
: I figured that if the head had good size
: valves and was ported for good flow, I
: shouldn't experience too much lag. Sure
: would make for some kicker boost though.
: Tom

: You have done your homework Tom, this can be
: made to work. I would work to keep as much
: head and block deck thickness and stability
: as possible, to hold the head gasket seal.
:
: Here is a thought, put a little stroke on the
: crank to get the compression to 8 with the
: short piston and 6.7 con rod. Doing this
: will keep max. deck thickness.
:
: I think a dual turbo SL6 would be cool, dual
: 2.2 may be a little slow to spool-up but
: there are ways to help that.
: DD

:
: I was somewhat concerned about the slow spool
: as well, but it is a 4 spd, and with a good
: flowing head it shouldn't be too bad. I have
: a pair of the 2.3 turbocoupe turbos, which
: use the same size .48 exhaust housing as the
: 2.2's, but larger compressors. If it still
: lags I also have a CO2 bottle to help it
: along. The interesting part will be running
: it on propane. I have toyed with the idea of
: either running a customized Offy 2x1bbl
: intake, or fabbing one from a factory piece.
: I'd like to get maximum fuel distribution by
: running 2 mixers(propane carbs). I emailed
: Cameron Tilley and inquired about some of
: his parts also, but he was more interested
: in selling the whole thing as a package. I'm
: going to keep a detailed account of this
: build-up in case it actually works, and
: someone else is interested.LOL
: Tom