BB Tunnel Ram Setup

[YENKO DEUCE REGISTRY]

How would this work on a 427 with oval port heads, 550 / 550 cam? I don't know a thing about rams, but I think it would look cool on the Day 2 car - is this setup period correct?

[PxTx]

I haven't seen too many vintage TR for oval port heads. Do you have a line on one? You can open the area up pretty well so the transition form a TR square port isn't too badly interupted with the smaller oval port. I like the TR with the old breadbox plenums. They look really cool on a Nova!

From very early on, I've run 2 Holley's and a X-ram on my 65 daily driven everywhere. Highway or around town with 4.88's I get 12 mpg. If you want to run dual-quads- then do it. With a good tune (and there are some tricks to do) you'll be happy with the way it drives. Heck I didn't know that mutch at 16 and I did it. Sure it can always be optimized some more, but I would rather see Benjamin driving the car with what you have, than waiting for the day you find the ideal parts.

As for the mild cam, I don't see it hurting anything. What gear do you plan to run?

[markjohnson]

Carburetor selection will play a MAJOR role here. Two of the Edelbrock Thunder Series Carburetors with easy-to-adjust Secondary Air Valves (only requires a small screwdriver!) would be a great choice here in the 500 CFM, or maybe even the 625 CFM size. Both Edelbrock and Weiand make oval port Tunnel Rams with slightly downsized runners and smaller plenums designed with street use in mind. Don't forget that Edelbrock recently released a Dual Quad Air Gap with part #'s for either oval or rectangular port Rat Motors. I've actually purchased one of these intakes for my own ride because I'm a huge fan of the mid-range torque that a dual plane manifold provides. Now I've had some fast stuff but for whatever reason I skipped my "tunnel ram phase" in my younger years but I'm gonna make up for it now. As tall as it is, I'm gonna add a little more height to it with 1-inch tall, 4-hole carb spacers and probably the K&N Velocity Stacks that utilize filters. I also plan to grind off the "Edelbrock" script and do a few little tricks to make the intake looke a little more vintage. These Dual Quad Air Gaps are actually very reminiscent of the very tall Z-11 intake that came on the factory Drag cars of 1963.

[markjohnson]

Here's a pic. Not trying to change your mind or anything if your heart is set on a T-Ram but just throwing out there a little more streetable alternative. Edelbrock Thunder Series #1805 (625 CFM) are already pre-calibrated right out-of-box for this particular manifold on BBC's.

[RPOLS3]

You're right - that does resemble a Z-11 intake.

[SSRSBOB]

I vote for the TR2-X,

Bob

[rat tuned]

i also have a big block and was thinking of doing the same. i would use either a weiand oval port intake number 1981 or edelbrock street tunnel ram. i was looking at these carbs

http://www.allcarbs.com/detail.php?pid=406&gb=1&ctgn=71&stt=0

a friend ordered some carbs for a blower engine. when they dynoed the engine the operater said the carbs were excellently calibrated and didn't have to change anything. mike

[PxTx]

To be period correct, you've got to run a pair of Holley carbs. Edlebrock's weren't around any any close equivalent is just lame IMHO.

This is the empitome of 1970's day 2 TR's. This is a Weiand, but I don't know the model. It has a pair of 450 carbs, but the ol' 1850 600 cfm are cheaper and easily tuned for this application. I run them on my 327 too.
http://i305.photobucket.com/albums/nn219/303racer/VTS_01_1VOB_000451501.jpg

http://i393.photobucket.com/albums/pp14/jalopyjunkie/two%20lane%20blacktop/tlb45.jpg

There is something about the way this intake looks that I really dig more so than the Two Lane Blacktop set-up.

http://i50.photobucket.com/albums/f315/dhb2/MODEL%20BUILDING/CARSJAN69BMPCHEVELLEENG.jpg

[rat tuned]

are those 450's or 660 center squirters?

[396L35]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: rat tuned</div><div class="ubbcode-body">are those 450's or 660 center squirters? </div></div>
There are no 660's in the three pictures above... The 4224 has a very distinct look.
http://www.jegs.com/i/Holley/510/0-4224/10002/-1

[VintageMusclecar]

These carbs appear to be early Ford 1850's at a casual glance.
http://i305.photobucket.com/albums/nn219/303racer/VTS_01_1VOB_000451501.jpg

These appear to be newer 450 cfm mechanical secondary units.

http://i393.photobucket.com/albums/pp14/jalopyjunkie/two%20lane%20blacktop/tlb45.jpg

These appear to be GM 850 vacuum secondary carbs (converted to mechanical secondaries obviously) as evidenced by the fast idle cam studs, the two mounting bosses for a choke pull-off and the shorter 850-specific choke towers. I'd guess them either to be 3418's or 4054's as the diaphragm links are clearly visible on the secondary throttle shafts and there are no secondary accelerator pump levers as would be found on a 4296. The throttle levers look like `67 style components which would indicate the carbs are 3418's, but I can't say for sure w/o closer view.

http://i50.photobucket.com/albums/f315/dhb2/MODEL%20BUILDING/CARSJAN69BMPCHEVELLEENG.jpg

I can't recall ever seeing a 4150 carb with Cathedral bowls mounted inline on a TR as these are...noting the side-hung secondary bowl that's been adapted to the rear of the front carb...interesting...

[markjohnson]

That cobbled-together front carburetor &amp; fuel line is really somethin' else. It's hard to believe that's the Motion-built '67 Chevelle Drag car. I know this car is still around and being restored but is this the condition that the car should be restored back to?

[YENKO DEUCE REGISTRY]

Wow! Great responses and info, keep it coming. Based on the info thus far, we are going with a TR for sure. If I can make it run decent (ie; not too fast, he'll still be a 'kid' when he starts driving this thing), and get the look - it's a no brainer. An old school looking TR, white coated headers with 4bolt collectors, NOS yellow ladder bars, cragars.... likely a f/glass stinger hood with a hole for the TR, what kid wouldn't love it??

Anyone recalling a certain AMT (I think) model that is giving the inspiration for this build?? <<GRAEMLIN_URL>>/naughty.gif

[VintageMusclecar]

Correction to my previous post--the secondary bowl on the front carb actually appears to be a side-hung <span style="font-style: italic">primary</span> 4160 style bowl, not a secondary bowl.

Just wanted to clear that up.

[COPO]

That cobbled together set-up on the '67 BM Chevelle was good for a mid 10's in a street driven car back in the day. <<GRAEMLIN_URL>>/biggthumpup.gif

[x Baldwin Motion]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: YENKO DEUCE REGISTRY</div><div class="ubbcode-body"> An old school looking TR, white coated headers with 4bolt collectors, NOS yellow ladder bars, cragars.... likely a f/glass stinger hood with a hole for the TR, what kid wouldn't love it??

Anyone recalling a certain AMT (I think) model that is giving the inspiration for this build?? <<GRAEMLIN_URL>>/naughty.gif </div></div>
http://www.jimnohio.com/images3/1009.JPG


* not sure I would use a stinger hood for a hole that size !! <<GRAEMLIN_URL>>/wink.gif

[YENKO DEUCE REGISTRY]

Nice! That's the model - killer car, will be even better in reality, <<GRAEMLIN_URL>>/grin.gif

Thanks for the pic <<GRAEMLIN_URL>>/biggthumpup.gif

[Xplantdad]

I built that model...painted it hugger orange. I spent almost two weeks building it...then blew it up with firecrackers and bottle rockets <<GRAEMLIN_URL>>/hmmm.gif <<GRAEMLIN_URL>>/crazy.gif

[YENKO DEUCE REGISTRY]

<<GRAEMLIN_URL>>/biggthumpup.gif

I was just explaining the firecrackers in a model thing to Benjamin this past weekend, he was a little curious about why one would do that - once he'll sees one blow up he get it! <<GRAEMLIN_URL>>/grin.gif

[Xplantdad]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: YENKO DEUCE REGISTRY</div><div class="ubbcode-body"><<GRAEMLIN_URL>>/biggthumpup.gif

I was just explaining the firecrackers in a model thing to Benjamin this past weekend, he was a little curious about why one would do that - once he'll sees one blow up he get it! <<GRAEMLIN_URL>>/grin.gif </div></div>

<<GRAEMLIN_URL>>/beers.gif

[markjohnson]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: COPO</div><div class="ubbcode-body"> That cobbled together set-up on the '67 BM Chevelle was good for a mid 10's in a street driven car back in the day. <<GRAEMLIN_URL>>/biggthumpup.gif </div></div>

I don't care how fast it was or who put it together, even if it was Motion or the Mason Bros., that looks terrible and I'm going to give them the benefit of the doubt that hopefully that was just cobbled together quickly for the magazine shoot or something. That much floppy rubber fuel line not only looks terrible, but it's dangerous as well and would flunk technical inspection at most drag strips. The messed-up thing is if that was a random photo of an unknown car with that fuel line set-up, people would be laughing at it and rolling their eyes but since it happens to be a Baldwin-Motion car, it's supposed to be acceptable. Whatever. I remember doing something like that when I was like 16-17 years old and my father just ripped me a new one after seeing it!

[PxTx]

Found this old thread and thought I would post it since there is some great TR specific tuning discussions that went on here.

http://www.yenko.net/ubbthreads/ubbthreads.php?ubb=showflat&amp;Number=116262&amp;page=all

[PxTx]

I really hate to see this thread die, so here's a bump Marlin.

http://i710.photobucket.com/albums/ww101/Plowman7/Thumper/ThumperRam3.jpg

Here's an old Polaroid scan of my Uncle's 42 Ford P/U Street Rod which has been running Tunnel Ram since 1987 and it's still on there today.

The TR started on a 307 with 390 carbs (inline) while the 383 was being built. This then all went on to the 383 with a mild 470 lift cam.

By 1990 he installed a pair of 1850 carbs, removed the choke plates, added the rear metering block kit and center hung float bowls to them. Threw those carbs on mounted sideways with a homemade adapter plate and some sideways linkage. The truck never ran better! It gets 18 mpg @ 70 mph on the highway <<GRAEMLIN_URL>>/3gears.gif Who cares what it gets locally.

Here's another picture of the Plowman I posted somewhere else once. Notice another dual quad setup!

http://i710.photobucket.com/albums/ww101/Plowman7/waldo1.jpg

Note the cobbled together fuel system Mark <<GRAEMLIN_URL>>/grin.gif

[YENKO DEUCE REGISTRY]

I'm liking this thread myself! I like the cobbled together fuel system too, <<GRAEMLIN_URL>>/biggthumpup.gif

I'm pretty sure we are going to do it - why not??

[69 Post Sedan]

OK....I'm hooked. Here is a scanned picture of a 1969 Holley Parts Catalog. I actually bought a mint BBC TR-2 at a local swap meet. I had it for 30 minutes and sold it for $125 more than I gave. I wish I would have kept it.

Kurt

http://i300.photobucket.com/albums/nn2/brkyard/Stuff/EdelbrockIntakesCatalague.jpg

[owners2]

Check this bad ride from the early 80's. I still have the motor ,without the tunnel ram in my triple black 68 camaro. Sold the car for 1,500. 00 (I know crazy)

[Plowman]

I like looking at BB Tunnel Ram,WOW!

[YENKO DEUCE REGISTRY]

Cool!!

[PxTx]

I still don't have a great resource for dating the different MSD boxes. I wish there was a Day 2 specific forum or resource place.

I can tell you form first hand experience, that early MSD7a box you've got there does a great job handleing a Tunnle Ram on the srteet.

http://www.yenko.net/ubbthreads/ubbthreads.php?ubb=download&amp;Number=25436&amp;filename= 69 CAMARO TUNNEL RAM.jpg

I did have an issue with it melting a hole the size of a quarter in my HEI rotor a few times. I did solve it with a copper coated carbon button.

Anyways, way cool man! Thanks for sharing the old picture.

[69 Post Sedan]

Very neat picture. Is that a &quot;Cool Can&quot; for the fuel on the drivers side inner fender? <<GRAEMLIN_URL>>/headbang.gif

[PxTx]

Looks like a cool can for the brake lines. Must be hard to slow that thing down <<GRAEMLIN_URL>>/3gears.gif

[YENKO DEUCE REGISTRY]

http://cgi.ebay.com/ebaymotors/WEIAND-HI...sQ5fAccessories (http://cgi.ebay.com/ebaymotors/WEIAND-HI-RAM-TUNNEL-RAM-INTAKE-MANIFOLD-BBC-OVAL-PORT-_W0QQcmdZViewItemQQhashZitem20b660faeeQQitemZ14049 8762478QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccesso ries)

Thoughts?

[x77-69z28]

just make sure that you know that one is for oval port heads!

[TheNovaMan]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: markjohnson</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: COPO</div><div class="ubbcode-body"> That cobbled together set-up on the '67 BM Chevelle was good for a mid 10's in a street driven car back in the day. <<GRAEMLIN_URL>>/biggthumpup.gif </div></div>

I don't care how fast it was or who put it together, even if it was Motion or the Mason Bros., that looks terrible and I'm going to give them the benefit of the doubt that hopefully that was just cobbled together quickly for the magazine shoot or something. That much floppy rubber fuel line not only looks terrible, but it's dangerous as well and would flunk technical inspection at most drag strips. The messed-up thing is if that was a random photo of an unknown car with that fuel line set-up, people would be laughing at it and rolling their eyes but since it happens to be a Baldwin-Motion car, it's supposed to be acceptable. Whatever. I remember doing something like that when I was like 16-17 years old and my father just ripped me a new one after seeing it!</div></div> True, it wouldn't pass tech inspection these days; but back then, there was no max 12&quot; of rubber fuel line rule. Jenkins had lots of rubber line on his motors back in the day. Duct tape too. 1970 NHRA Supernationals:

http://www.nhra.com/UserFiles/image/2010/News/February/ff-jenkins.jpg

[Plowman]

http://i710.photobucket.com/albums/ww101/Plowman7/GrumpRam.jpg

I was reading the Grumpy book today and saw that he used my favorite TR.

[Plowman]

That Grumpy is good.

[427TJ]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: YENKO DEUCE REGISTRY</div><div class="ubbcode-body"> An old school looking TR, white coated headers with 4bolt collectors, NOS yellow ladder bars, cragars.... likely a f/glass stinger hood with a hole for the TR, what kid wouldn't love it??

Anyone recalling a certain AMT (I think) model that is giving the inspiration for this build?? <<GRAEMLIN_URL>>/naughty.gif </div></div>

Missed this post the first time. Yes, a Stinger hood with a sanitary cut-out for the TR/carbs/scoop/stacks would look great. Kids at my son's elementary school love my '55 when I rumble in at 3:00 to pick him up so the Nova would definitely get plenty of attention. Actually, the dads react more than the kids do! Their tired worn-down middle-aged faces light up when they see my '55 pulling in and they are immediately transported back to a happy time in their lives! (As am I when I drive the beast.) Now I want a TR for my '55.

As for the AMT Nova, I too built one back in the day. Silver, black guts, single Holley, stock hood, kit mags. Still packed in a box--since 1987--in the basement of my mother's house in Sacramento with my other 70s-80s model car builds.