Weiand Tunnel ram Intake

I need to enlarge the ports on my Weiand Tunnel Ram for my aluminum SCJ heads. I just finished a general cleanup of the head ports and a Felpro gasket match (no major cutting). The tunnel ram intake necks down to MUCH smaller ports at the flange. Should I cut them out all the way to a Felpro gasket match or leave them a hair smaller?

dbshelton wrote:I need to enlarge the ports on my Weiand Tunnel Ram for my aluminum SCJ heads. I just finished a general cleanup of the head ports and a Felpro gasket match (no major cutting). The tunnel ram intake necks down to MUCH smaller ports at the flange. Should I cut them out all the way to a Felpro gasket match or leave them a hair smaller?

Port match it from 8:00 o'clock to 4:00 o'clock to match the cylinder head PORT; not the gasket.

Thanks Randy. I'll get at it this weekend.

rmcomprandy wrote:

dbshelton wrote:I need to enlarge the ports on my Weiand Tunnel Ram for my aluminum SCJ heads. I just finished a general cleanup of the head ports and a Felpro gasket match (no major cutting). The tunnel ram intake necks down to MUCH smaller ports at the flange. Should I cut them out all the way to a Felpro gasket match or leave them a hair smaller?

Port match it from 8:00 o'clock to 4:00 o'clock to match the cylinder head PORT; not the gasket.

If I understand the port match of "8:00 o'clock to 4:00 o'clock" I would only be matching the bottom of the port. What is the reason for not matching the entire port? Something like reversion, or does it not make any difference at the roof of the port? I'm getting ready to do a Torker II. Thanks.

8-4 clockwise, you want to focus primarily on the top-raising the port & widening.

STR-LGL-70 wrote:8-4 clockwise, you want to focus primarily on the top-raising the port & widening.

Thank you. I was looking at it literally at the bottom of the clock..... It is moving from 8 to 4 at the top of the clock. Thanks for clarifying.

EDIT: MORE? How far into the port do you try to open/match the port?

Colt Macara wrote:

STR-LGL-70 wrote:8-4 clockwise, you want to focus primarily on the top-raising the port & widening.

Thank you. I was looking at it literally at the bottom of the clock..... It is moving from 8 to 4 at the top of the clock. Thanks for clarifying.

EDIT:    MORE? How far into the port do you try to open/match the port?

Until there is not an obvious change in the transition so, every port wall will probably be done to a different depth.

rmcomprandy wrote:

Colt Macara wrote:

STR-LGL-70 wrote:8-4 clockwise, you want to focus primarily on the top-raising the port & widening.

Thank you. I was looking at it literally at the bottom of the clock..... It is moving from 8 to 4 at the top of the clock. Thanks for clarifying.

EDIT:    MORE? How far into the port do you try to open/match the port?

Until there is not an obvious change in the transition so, every port wall will probably be done to a different depth.

Thanks Randy.

That wasn't too bad of a project. About 2-3 hours or so to port and 1 hour to clean up the mess.

You doing anything in the plenum? There's a lot of room for improvement in there.

STR-LGL-70 wrote:You doing anything in the plenum? There's a lot of room for improvement in there.

No, I really have no idea what to do there.

STR-LGL-70 wrote:You doing anything in the plenum? There's a lot of room for improvement in there.

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Just laying the TFS gasket on the Torker II intake. Because the port tunnel on the Torker II sits below the Flange lip, there may not be enough material to get a straight transition at the roof. It likely would be bell shaped. Would I be better off flow wise just to leave it alone at the roof or go ahead and take out as much of the intake port at the roof as I can. Even though it may be bell shaped. Thanks.

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Colt Macara wrote:

STR-LGL-70 wrote:You doing anything in the plenum? There's a lot of room for improvement in there.

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Just laying the TFS gasket on the Torker II intake. Because the port tunnel on the Torker II sits below the Flange lip, there may not be enough material to get a straight transition at the roof. It likely would be bell shaped. Would I be better off flow wise just to leave it alone at the roof or go ahead and take out as much of the intake port at the roof as I can. Even though it may be bell shaped. Thanks.

If the heads are Cobra Jet location ports; port match, (NOT gasket match), # 1, 3, 6 & 8 ports of that manifold. Doing the others won't help average power.

rmcomprandy wrote:

Colt Macara wrote:

STR-LGL-70 wrote:You doing anything in the plenum? There's a lot of room for improvement in there.

*
Just laying the TFS gasket on the Torker II intake. Because the port tunnel on the Torker II sits below the Flange lip, there may not be enough material to get a straight transition at the roof. It likely would be bell shaped. Would I be better off flow wise just to leave it alone at the roof or go ahead and take out as much of the intake port at the roof as I can. Even though it may be bell shaped. Thanks.

If the heads are Cobra Jet location ports; port match, (NOT gasket match), # 1, 3, 6 & 8 ports of that manifold. Doing the others won't help average power.

I wish I had asked questions earlier. I gasket matched the SCJ heads first. I hope I didn't hurt the flow much.

rmcomprandy wrote:

Colt Macara wrote:

STR-LGL-70 wrote:You doing anything in the plenum? There's a lot of room for improvement in there.

*
Just laying the TFS gasket on the Torker II intake. Because the port tunnel on the Torker II sits below the Flange lip, there may not be enough material to get a straight transition at the roof. It likely would be bell shaped. Would I be better off flow wise just to leave it alone at the roof or go ahead and take out as much of the intake port at the roof as I can. Even though it may be bell shaped. Thanks.

If the heads are Cobra Jet location ports; port match, (NOT gasket match), # 1, 3, 6 & 8 ports of that manifold. Doing the others won't help average power.

Thanks Randy, I saw your advice above and I was going to bolt them to the heads as you suggested, to get the head port pattern. The heads are TFS 325 CNC Comp Port. They do have the raised Cobra Jet exhaust flange I believe its .250". I was using the gasket just as a reference to see if it's even possible to take that much material off at the roof of the port of the T2 manifold. Appreciate any advice. Thanks. (See TFS head port below)
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The first port will get thin on top at 11oclock. I had mine welded on top , but can see all the ports roof being thin at flange if trying for SCJ Gasket size straight through. Make templates of heads and use that for maximum roof height.

ED468 wrote:The first port will get thin on top at 11oclock. I had mine welded on top , but can see all the ports roof being thin at flange if trying for SCJ Gasket size straight through. Make templates of heads and use that for maximum roof height.

Was the first port (#1 cylinder?) the only one you had to weld?...... and did the rest of the TII ports match the CJ port without problems? Particularly the ones Randy said to do. #1, 3, 6 & 8.

Only one that broke through, but I went ahead and had all 8 welded for strength
as well as raised floor , moved port for a Victor Match. You can get a Thick .120 Intake gasket to raise intake port to closer CJ Roof.

ED468 wrote:Only one that broke through, but I went ahead and had all 8 welded for strength
as well as raised floor , moved port for a Victor Match. You can get a Thick .120 Intake gasket to raise intake port  to closer CJ Roof.

Welding cast aluminum, did you have any distortion or require machining of mating surfaces? How did the aesthetics appear on the surface where the beads were laid? Knowing what you know now, to keep weld through to a minimum, would it be advantageous to weld it up first and then match the ports?

Do carb spacers on the Weiand show any performance improvement?

dbshelton wrote:Do carb spacers on the Weiand show any performance improvement?

Sorry "db" just realized..... did not mean to highjack your thread.

Not a problem.

dbshelton wrote:Not a problem.

Thanks. Are you getting pretty close to bolting it all back together?

Colt Macara wrote:

dbshelton wrote:Not a problem.

Thanks. Are you getting pretty close to bolting it all back together?

Still gathering a few parts. All I lack is rocker arms, pushrods, checking piston/valve clearance.
Also going to build a run-in stand.

dbshelton wrote:

Colt Macara wrote:

dbshelton wrote:Not a problem.

Thanks. Are you getting pretty close to bolting it all back together?

Still gathering a few parts. All I lack is rocker arms, pushrods, checking piston/valve clearance.
Also going to build a run-in stand.

Sounds like you are close. Keep us updated. I would be real interested in seeing your run in stand and how you went about building it.