Re: period correct tunnel rams
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: pxtx</div><div class="ubbcode-body">With that criteria, I would say the Offy TP Tunnel Ram is a perfect fit.

In the 1980's my uncle put a TR on a street rod with a similar set-up. It has been the most street friendly dual quad car in the club and is still running strong to this day. You could dive it in traffic tomorrow, then blast off to Columbus without a hitch. Vac advance distributor with a special tune. The street rod is a 42 Ford pickup. It's not a race car, but has turned 14's at the drags.

My personal hang-up is having a TR equipped car only running 14's. </div></div>

Awesome! That's what we're going with then. We'll figure out the carb selection later, but I've been reading up your advice on SNS about using 2 600's. We want to have fun with this setup, and not have to deal with a finicky rpm operating range.

[img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img]

Re: period correct tunnel rams
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: YENKO DEUCE REGISTRY</div><div class="ubbcode-body">Wanna sell that last one? [img]<<GRAEMLIN_URL>>/naughty.gif[/img] </div></div>

Sorry but all the intakes that I have pictured are manifolds that I have sold in the past. Just posting them for reference.

-Matt

Re: period correct tunnel rams
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: YENKO DEUCE REGISTRY</div><div class="ubbcode-body">Wanna sell that last one? [img]<<GRAEMLIN_URL>>/naughty.gif[/img] </div></div>

Marlin, you can buy them new from Offenhauser through Summit. I think I paid $380 for mine 6-7 years ago. Offenhauser still uses the original molds. Everything is 100% identical to the originals even the lettering.

If you buy used there are tons of them out there for sale but look them over carefully. These were race items and many are butchered up-plenums cut out, hogged out intake ports, holes drill in them for nitrus ports, mounting flanges milled down for weird head angles..that sort of thing.

Re: period correct tunnel rams
 

Ok, sounds better.

Re: period correct tunnel rams
 

I just got my tunnel ram combination running this fall. The long block is a 454 LS6 crate motor from the 80s with 990 heads and 10.2:1 compression. I put in a Crane p/n 134691 solid flat tappet cam (0.580/0.600 lift, 256/266 @ 0.050 and 290/300 advertised, 110LSA) and topped it with an Edelbrock TR2X and 660 center squirters with secondary metering blocks. I run an electric fuel pump and an MSD 6AL box. My torque converter flashes to 4000-4200 rpm or so off the line, and I have 4.10 gears. &quot;Everyone&quot; said it was going to be unbearable on the street, and I had my doubts too because of the enormous plenum, but as it turns out the throttle response and torque are phenomenal! The first pass was 11.39 at 118mph. The air/fuel ratio is fairly close for most of the 1/4 mile, but I need to drill out the accelerator pump squirters for the launch and restrict the idle feeds in the primary metering blocks for the pits and the street...

Early TR2X manifolds had equal-sized runners, but they went to the staggered runners around 1970 or 1971 (I think). Joe Sherman is a big fan of this intake. Grumpy ran it for a while, but then switched to Weiand.

Re: period correct tunnel rams
 

wow that is good street times. keep with the updates!

Re: period correct tunnel rams
 

That is cool and we need pictures.

Re: period correct tunnel rams
 

This is an Edelbrock UR2X tunnel ram. I'm not sure exactly when Edelbrock released this manifold, but it was at least before 1976.

http://i33.photobucket.com/albums/d7...1_12090004.jpg

http://i33.photobucket.com/albums/d7...1_12090001.jpg

http://i33.photobucket.com/albums/d7...1_12090003.jpg

It has the unequal sized runners.

http://i33.photobucket.com/albums/d7...1_12090002.jpg

This is the same manifold (not the <span style="text-decoration: underline">actual</span> manifold, just the same model) I ran on the L78 396 I had in my first `67 Chevelle around 1983.

http://www.vintagemusclecarparts.com..._Tunnelram.jpg

I used a pair of Carter Competition Series 750 AFB's back then, and the swap to this manifold from a 163 with an 800 Holley made a very notable improvement &gt;4K rpm on that little 396.

The current UR2X will eventually make its way onto the 496 in the current Chevelle project. I just had the 163 off of the 496 for cleaning and couldn't resist setting this in place for a quick pic. [img]<<GRAEMLIN_URL>>/grin.gif[/img]

http://i33.photobucket.com/albums/d73/VMCP777/TR.jpg

If the manifold makes the same kind of improvement on the 496 that it made on the 396..... [img]<<GRAEMLIN_URL>>/naughty.gif[/img]

Re: period correct tunnel rams
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Plowman</div><div class="ubbcode-body">That is cool and we need pictures.</div></div> Thanks! I have some pics that are more up-to-date, but I haven't had a chance to upload them to Photobucket yet. In the meantime, I'll wet yer whistle with a couple pics from before it was quite finished.

http://i371.photobucket.com/albums/o...BBCinNova1.jpg

http://i371.photobucket.com/albums/o...BBCinNova3.jpg

And if you want to see a low quality vid of the break-in, go here: https://www.youtube.com/watch?v=RE4hVNhuOFQ

Re: period correct tunnel rams
 

Sounds and looks great. I like the VC spacers.



<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: TheNovaMan</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Plowman</div><div class="ubbcode-body">That is cool and we need pictures.</div></div> Thanks! I have some pics that are more up-to-date, but I haven't had a chance to upload them to Photobucket yet. In the meantime, I'll wet yer whistle with a couple pics from before it was quite finished.

http://i371.photobucket.com/albums/o...BBCinNova1.jpg

http://i371.photobucket.com/albums/o...BBCinNova3.jpg

And if you want to see a low quality vid of the break-in, go here: https://www.youtube.com/watch?v=RE4hVNhuOFQ</div></div>

Re: period correct tunnel rams
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Chandler</div><div class="ubbcode-body">Sounds and looks great. I like the VC spacers.</div></div> Thanks. I was originally going to run stamped rockers, but then I found a good deal on a set of barely-used Howard's aluminum roller rockers. They'd probably fit without spacers if I cut the drippers off the covers, but I couldn't bring myself to do that. The spacers are B&amp;B - not exactly cheap, but they get the job done in a fairly period-correct manner.

Re: period correct tunnel rams
 

I think they look fine. B&amp;B's are what I'm going to use when I run short VCs.


<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: TheNovaMan</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Chandler</div><div class="ubbcode-body">Sounds and looks great. I like the VC spacers.</div></div> Thanks. I was originally going to run stamped rockers, but then I found a good deal on a set of barely-used Howard's aluminum roller rockers. They'd probably fit without spacers if I cut the drippers off the covers, but I couldn't bring myself to do that. The spacers are B&amp;B - not exactly cheap, but they get the job done in a fairly period-correct manner.</div></div>

Re: period correct tunnel rams
 

This is an oddball TR I guess ?

http://i436.photobucket.com/albums/q...eRunnerRam.jpg

Re: period correct tunnel rams
 

http://i517.photobucket.com/albums/u...wi/Scan376.jpg

Re: period correct tunnel rams
 

Ridge Runner looks neat! Love the paint. Great wheels/tires &amp; stance! [img]<<GRAEMLIN_URL>>/beers.gif[/img]

Re: period correct tunnel rams
 

----Wow!!! I used to go by Norwood Chevys lot whenever I was home back in the sixties to check out the stock. They generally had something interesting. Then in 1970 I bought my LT1 Corvette the day after it arrived in January. Drove it to Florida 5 days later......Bill S

Re: period correct tunnel rams
 

That. Scoop is crazy looking I wonder is that home made?

Re: period correct tunnel rams
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: brent396</div><div class="ubbcode-body">That. Scoop is crazy looking I wonder is that home made? </div></div>

Brent
That scoop was made by a company..can't remember who offhand but remember seeing them in the speed equipment catalogs of the day.

I see those Ridgerunner rams available for sale very so often. There was an NOS one on Ebay 3-4 years ago.

Re: period correct tunnel rams
 

Did ya notice the MP sticker?

Re: period correct tunnel rams
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: TheNovaMan</div><div class="ubbcode-body">I just got my tunnel ram combination running this fall. The long block is a 454 LS6 crate motor from the 80s with 990 heads and 10.2:1 compression. I put in a Crane p/n 134691 solid flat tappet cam (0.580/0.600 lift, 256/266 @ 0.050 and 290/300 advertised, 110LSA) and topped it with an Edelbrock TR2X and 660 center squirters with secondary metering blocks. I run an electric fuel pump and an MSD 6AL box. My torque converter flashes to 4000-4200 rpm or so off the line, and I have 4.10 gears. &quot;Everyone&quot; said it was going to be unbearable on the street, and I had my doubts too because of the enormous plenum, but as it turns out the throttle response and torque are phenomenal! The first pass was 11.39 at 118mph. The air/fuel ratio is fairly close for most of the 1/4 mile, but I need to drill out the accelerator pump squirters for the launch and restrict the idle feeds in the primary metering blocks for the pits and the street...

Early TR2X manifolds had equal-sized runners, but they went to the staggered runners around 1970 or 1971 (I think). Joe Sherman is a big fan of this intake. Grumpy ran it for a while, but then switched to Weiand. </div></div>

Pete, I disagree. My talks with Joe when I picked my TR2X for my ZL-1 build was that Joe worked at Eddy at the time. The ORIGINAL TR2X were staggered ports, as per Joe. Only about 500 were made in that configuration. Eddy then changed it to the even port design. Man Joe certainly knew his stuff. Too bad he's gone. He did tell me that he still thinks that was the best TR around until just recently.

Re: period correct tunnel rams
 

That is cool. *Paul

Re: period correct tunnel rams
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: EZ Nova</div><div class="ubbcode-body">Pete, I disagree. My talks with Joe when I picked my TR2X for my ZL-1 build was that Joe worked at Eddy at the time. The ORIGINAL TR2X were staggered ports, as per Joe. Only about 500 were made in that configuration. Eddy then changed it to the even port design. Man Joe certainly knew his stuff. Too bad he's gone. He did tell me that he still thinks that was the best TR around until just recently. </div></div>
That's interesting, because when I was looking for tunnel rams, it was MUCH more difficult to find the even port casting.

What do you mean &quot;he's gone&quot;? Did he pass away?

Re: period correct tunnel rams
 

I agree. I have three TR's with the staggered ports and see them for sale all the time.

Re: period correct tunnel rams
 

Joe Sherman is dead? That's really too bad. He was a great source for several magazine car and engine build-ups that were always very interesting.

Re: period correct tunnel rams
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: markjohnson</div><div class="ubbcode-body">Joe Sherman is dead? That's really too bad. He was a great source for several magazine car and engine build-ups that were always very interesting.</div></div>

If he is dead, it must have been quick, because he posted on Speedtalk today.

Wayne

Re: period correct tunnel rams
 

http://i411.photobucket.com/albums/p...5CTDragway.jpg Another pic of that crazy scoop its a little differant in the front

Re: period correct tunnel rams
 

Sorry, I was Joe Mondello that dies. That was a mistake and sorry to anyone that was shocked by that statement.

Re: period correct tunnel rams
 

Ok, here's the info from speedtalk and Joe:

&quot;I worked at Edelbrock back in the good old days, When they made that manifold(tr-2x) <span style="font-weight: bold">the first ones had the good port/badd port layout with smaller ports on the good runner in the heads,</span> Anyway, they only made one run of those good manifolds, then they changed the design so all the runners were the same. The good one ( only 50 were made) were 30 Hp better than any other tunnel rams they have ever made. I take it the one you have is the one with all the runners the same size.. On an 900 HP 540 I did, when I went from one1150 carb to the tunnelram with two 1050 carbs, the engine PICKEDUP 100 HP with NO other changes. Back in 1971, It was worth 70 HP on a good 454(750 HP back then)

JOE SHERMAN RACING ENGINES


Check out this thread over there as there's alot of info on old tunnel rams:

http://speedtalk.com/forum/viewtopic...t=tr2x#p213133

Just some info to help you guys out!

Re: period correct tunnel rams
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: YENKO DEUCE REGISTRY</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: pxtx</div><div class="ubbcode-body">With that criteria, I would say the Offy TP Tunnel Ram is a perfect fit.

In the 1980's my uncle put a TR on a street rod with a similar set-up. It has been the most street friendly dual quad car in the club and is still running strong to this day. You could dive it in traffic tomorrow, then blast off to Columbus without a hitch. Vac advance distributor with a special tune. The street rod is a 42 Ford pickup. It's not a race car, but has turned 14's at the drags.

My personal hang-up is having a TR equipped car only running 14's. </div></div>

Awesome! That's what we're going with then. We'll figure out the carb selection later, but I've been reading up your advice on SNS about using 2 600's. We want to have fun with this setup, and not have to deal with a finicky rpm operating range.

[img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img] </div></div>

I picked up that Offy TP Tunnel Ram yesterday [img]<<GRAEMLIN_URL>>/naughty.gif[/img] Carbs are next!

Re: period correct tunnel rams
 

What carbs are you going to get? 660 center squirters?

Re: period correct tunnel rams carbs
 

For the street I would say,600 v/s Holleys#1850,cheep and does not load-up easy. But you will have to put idle restrictors in. For the track 660,s center[4]squirters, have more power I would go with that. You will have to see if idle restrictors are needed,but I would. So you can do what you want but I hope this helps. *Paul

Re: period correct tunnel rams carbs
 

What about the Holley 450cfm single squirt mechanical secondary tunnel ram carbs? I've heard good things about them. List number is 9776.

Re: period correct tunnel rams carbs
 

I'm following Plowman &amp; PXTX's lead on this one; they have it figured out.

Should I be searching swap meets for the old versions with the better material, or.......

Re: period correct tunnel rams carbs
 

I've run 390's and 450's. Even my stock L79 likes pair of 600 cfm 1850 carb over the little guys.

Had 1850's on a 13:1 350, but that was faster with a pair of 660's but lacked the street manners of the 600 VS.

Re: period correct tunnel rams carbs
 

The real question is what ignition are you gonna run?

It would be cool to find a set of all metal 1850's with matching patina if you can

Re: period correct tunnel rams carbs
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Fast67VelleN2O</div><div class="ubbcode-body">What about the Holley 450cfm single squirt mechanical secondary tunnel ram carbs? I've heard good things about them. List number is 9776. </div></div> Yes 450cfm,NO power,and they are hard to tune. The number &quot;450&quot;sounds good but it will take all season and then sum to tune the Two on a Tunnel-ram.

Re: period correct tunnel rams carbs
 

The 600's sound good to me, how do I decipher the 'all metal' versions?

Ignition? I'm open on that one too. Was thinking of using a Mallory Unilite w/ a Blaster coil. I know that stuff is newer, but I know the least about ignition so I wanted to ensure the most reliability in that area. But, open to vintage suggestions here too.

Re: period correct tunnel rams carbs
 

From what I know, there is a dash and a number after the part number for every time there was a change in the carb.
In other words 1850 would be a first edition, 1850-1 would be second edition, etc.
I can't say for sure what -numbers indicate what year span, but I'm sure someone here or at Holley can tell you.
The 600's I'm going to use are 1850-1. They are all metal with the good metal floats. Everyone is pretty much right about the carbs., 660's are just about made for wide open only and very difficult to make work well for the street.

Re: period correct tunnel rams carbs
 

These might be a good lead.

http://allentown.craigslist.org/pts/2761365647.html

Re: period correct tunnel rams
 

The scoops and the manifold were both made by Ralph Ridgeway, owner of the blue Ridge Runner Camaro pictured. Both are extremely rare today.