Not much help for Mikes V6, but has anyone considered the Flowmaster "Pulse
Tech Scavenger Collectors" (that name alone is worth at least 10 hp!), these
are 4-2-1 collectors offered with a1.5" input (about the right size for 2L
primaries) and a 2.5" outlet. They are 23" long, which seems about right
with 21" primaries, however the X-frame get in the way, would need to put a
large re-enforced hole in the frame to clear.
Jeg's part number 389-C150200250 (page 16-k in the Mar/Apr 02 catalog)
$77.99 a pair (not bad if you can find someone to share with).
Todd Osborn
San Jose, CA
2x '68 2L
----- Original Message -----
From: "Mark Sedlack" <msedlack@neo.rr.com>
To: "datsunmike" <datsunmike@nyc.rr.com>; <Geegc@aol.com>;
<datsun-roadsters@autox.team.net>
Sent: Thursday, March 14, 2002 7:43 PM
Subject: Re: Exhaust systems Q
> Mike,
> On my 66 2" will slip right through the driver's side - 2.5" needs a bit
of
> flattening. I was down at Jim Sloan's race barn, and we were looking at a
> later frame and it appears they made the openings smaller on the later
cars.
>
> I've had discussions with a local hot rod guru ( he's been building race
> proven motors & cars for many moons), as well as the folks at Clifford
> performance and Headers by Ed with the result that I'm convinced of the
> proper sizing for the "R" with the V6 - 1-5/8" primary tubes, 3 into 1,
> 2.25" collector, reduced to 2" duals to the rear, just ahead of the axle,
> where they will join in a flowed "Y" into a single 2" and out a 2"x17"
> Supertrapp. I was thinking of going dual out the back, but the same guys
I
> talked with said by the time the gases have travel that far, they will
have
> cooled and condensed enough for the low-restriction 'trapp on a single
pipe
> to do it.. I'm going to make the "Y" using my tubing notcher.
>
> All three sources warned against going too large - too much volume
reducing
> bottom end power. Funny thing was, when I was at the local shop having
the
> tailpipe bent up, there was a kid in there asking about a 3.5" exhaust for
> his rusty, ricey Civic ;>
>
> I haven't modfied the passenger side of the x yet, because in need the
> header collectors to see where the exhaust can be routed. I'm STILL
waiting
> for the collectors I ordered back on Jan 28th from Clifford. Finally got
to
> the bottom of it today - my order was processed and billed to my cc, but
the
> butthead in purchasing never ordered them from a sub-supplier. Took
asking
> for the owner to get it resolved - he's having the shop guys cut the
> collectors off a set of heeader they have in stock and is FEDEXing them to
> me so I'll have em for this weekend.
>
> Mark Sedlack
> OROC
> Cuyahoga Falls OH
> 66 1600 http://home.neo.rr.com/mark2000/images/datsun1600/
> 77 280Z http://home.neo.rr.com/mark2000/images/datsun1600/Z/Z.htm
>
> ----- Original Message -----
> From: "datsunmike" <datsunmike@nyc.rr.com>
> To: "Mark Sedlack" <msedlack@neo.rr.com>; <Geegc@aol.com>;
> <datsun-roadsters@autox.team.net>
> Sent: Thursday, March 14, 2002 7:51 PM
> Subject: Re: Exhaust systems Q
>
>
> > Mark,
> >
> > I saw a car where the exhaust openings in the frame were opened up and a
> > pretty large diameter pipe was welded to the frame to keep it strong and
a
> > 2" pipe went through without flattening.
> >
> > With your skills a mod like that is a piece of cake.
> >
> > Mike
> >
> > ----- Original Message -----
> > From: "Mark Sedlack" <msedlack@neo.rr.com>
> > To: <Geegc@aol.com>; <datsun-roadsters@autox.team.net>
> > Sent: Thursday, March 14, 2002 1:42 PM
> > Subject: Re: Exhaust systems Q
> >
> >
> > > I've been playing around with exhaust options for our 66 engine swap
> > > project, and am planning on 2" pipe. I had a 2" tailpipe with the
> "hump"
> > > over the axle bent up and it fits fine using the stock hanger
locations.
> > 2"
> > > will also fit through the x-member, but it is very tight. Too tight
to
> > > allow the movement the engine would impart.
> > >
> > > I plan on rigidizing ( is that a word?) the exhaust aft of the
> collectors,
> > > and using a pair of EPI stainless steel flex couplers to connect the
> > > collectors to the exhaust tubes. I'm using a pair of flex couplings
> since
> > > the V6 will have duals back to just ahead of the axle - I'll be
> modifiying
> > > the passenger side of the x with the same through tubes as on the
> > drivers's
> > > side -
> > >
> > > A single flex coupler and 2" pipe back should work very well on your
66.
> > By
> > > the way, JCWhitney carries the EPI's now and they're quite a bit less
in
> > > price than Summit, etc.
> > >
> > > Mark Sedlack
> > > OROC
> > > Cuyahoga Falls OH
> > > 66 1600 http://home.neo.rr.com/mark2000/images/datsun1600/
> > > 77 280Z http://home.neo.rr.com/mark2000/images/datsun1600/Z/Z.htm
> > >
> > >
> > > ----- Original Message -----
> > > From: <Geegc@aol.com>
> > > To: <datsun-roadsters@autox.team.net>
> > > Sent: Thursday, March 14, 2002 11:42 AM
> > > Subject: Exhaust systems Q
> > >
> > >
> > > > My 1966 1600's new fancy headers end in a 2 inch pipe, and the 20
year
> > old
> > > exhaust pipe is only 1.5 inches. I can get a reducer (although a flex
> > > coupling reducer will be tough to find), but I wonder if anyone else
> (what
> > a
> > > question with this group) has run 2 inches all the way on an early
1600
> > and
> > > what clearance issues have come up.
> > > >
> > > > Thanks
> > > >
> > > > Gary C
> > > >
> > > > /// datsun-roadsters@autox.team.net mailing list
> > > > /// Send admin requests to majordomo@autox.team.net or go to
> > > > /// http://www.team.net/cgi-bin/majorcool
> > > > /// Send list postings to datsun-roadsters@autox.team.net
> > >
> > > /// datsun-roadsters@autox.team.net mailing list
> > > /// Send admin requests to majordomo@autox.team.net or go to
> > > /// http://www.team.net/cgi-bin/majorcool
> > > /// Send list postings to datsun-roadsters@autox.team.net
>
> /// datsun-roadsters@autox.team.net mailing list
> /// Send admin requests to majordomo@autox.team.net or go to
> /// http://www.team.net/cgi-bin/majorcool
> /// Send list postings to datsun-roadsters@autox.team.net
/// datsun-roadsters@autox.team.net mailing list
|