Welcome, Guest. Please login or register.
November 25, 2017, 04:16:23 am

Login with username, password and session length
TRADER Feedback System
IS NOW AVAILABLE
* SBFTECH Membership Required *
434290 Posts in 37164 Topics by 9479 Members
Latest Member: joerberg
Search: Advanced search
Advertiser Inquiries
+ SBFTECH.com Experienced Small Block Ford Tech
|-+ General Tech
| |-+ General Tech
| | |-+ TFS-R upper internal pics
0 Members and 1 Guest are viewing this topic. « previous next »
Pages: [1] 2 3 Go Down Print
Author Topic: TFS-R upper internal pics  (Read 30793 times)
David Claflin
Adv_SBFTechie
Big Block
****
Offline Offline

Posts: 7871


Location: Redneck Riviera (Ft Walton Beach Florida)

« on: August 29, 2014, 09:00:11 pm »

I bought the TFS-R from BAM, and almost immediately cut a big ass hole in it.
I got the notion after seeing the Holley SMII upper internals, and hearing that the TFS-R upper wasn't as good as the SMII. I wondered why, I figured maybe I'd cut one open and see what's different, and perhaps I can make some changes to help it out. Here is where it originated.
http://www.hardcore50racing.com/vbulletin/showthread.php?p=473928#post473928
Couple things stick out that I see, there's a little for lack of a better term, a speed bump, about an 1/8th" high, just before where the crossover throat empties into the main plenum. I don't know if this is done to get the air to tumble or not. The other obvious thing is the different size of the port openings.
Those feeding the drivers side are much bigger at the plenum end of the ports, perhaps to make this intake work over a broader RPM range..... Wonder, Ponder
The lower runners are 5 1/8" long, while the uppers are 7 3/4".
The port openings at the upper/lower split are 1.38x2.39. The ports in the upper at the plenum are 1.37x2.45, and 1.37x2.74.



Logged

1990 Red LX, 306, 75MM, ported gt40's, Holley SMII, accufab longtubes, 3" exhaust, 4.10's, 318RWHP/316RWTQ
1985 LTD LX 302, ported TW's, XE-264 cam, ported Holley SMII, 75MM-R TB, MAC 1 3/4" longtubes, 4R70W, mach 1 brakes
1988 GT long term project
David Claflin
Adv_SBFTechie
Big Block
****
Offline Offline

Posts: 7871


Location: Redneck Riviera (Ft Walton Beach Florida)

« Reply #1 on: August 29, 2014, 09:00:44 pm »

Little speed bump here


Looking into plenum from throttle body
Logged

1990 Red LX, 306, 75MM, ported gt40's, Holley SMII, accufab longtubes, 3" exhaust, 4.10's, 318RWHP/316RWTQ
1985 LTD LX 302, ported TW's, XE-264 cam, ported Holley SMII, 75MM-R TB, MAC 1 3/4" longtubes, 4R70W, mach 1 brakes
1988 GT long term project
347HO
A-1 Super Genious / Director of Maintenance
Section Moderator
Big Block
****
Offline Offline

Posts: 12814


Location: Seattle, Washington
I believe they landed on the moon.


« Reply #2 on: August 29, 2014, 09:41:52 pm »

I know exactly what I'd do if I had that on my port bench... Wink
Logged




... it was REALLY revving at like 4K...
If I saw that thing in my rear view Im pulling over to let you by, I be scared of that thing Huh? i dont know wich car is uglier ur or mine?
Javier
Ugly?  Easy now -- that's my baby and it's got lots of unique character!  When I drop that built 445" stroker in it you won't have any time to "pull over to let me pass" because I'll have already blown past you when you figure out what the hell was that loud noise behind you . . .  
David Claflin
Adv_SBFTechie
Big Block
****
Offline Offline

Posts: 7871


Location: Redneck Riviera (Ft Walton Beach Florida)

« Reply #3 on: August 30, 2014, 08:49:23 am »

I was thinking of doing something to get the air to make the turn better. Like a 1/2" to 3/4" dowel across the top part of that lip. I'd use splash zone or some other epoxy to make it a smooth transition to the dowel.

Would you compare flow between ports with the larger bellmouth vs. the smaller? That difference has me stumped.
Logged

1990 Red LX, 306, 75MM, ported gt40's, Holley SMII, accufab longtubes, 3" exhaust, 4.10's, 318RWHP/316RWTQ
1985 LTD LX 302, ported TW's, XE-264 cam, ported Holley SMII, 75MM-R TB, MAC 1 3/4" longtubes, 4R70W, mach 1 brakes
1988 GT long term project
RunninHorse
Big Block
*****
Offline Offline

Posts: 3329


Location: Floresville, Texas
Órale!


« Reply #4 on: August 30, 2014, 08:51:36 am »

Dave are you porting that for NA use or forced induction?  You going to weld the original half back on or make an aluminum box?  I've seen a Cobra upper opened up like that with a box welded on.  You could see it flex under throttle.  That was a NA setup.
Logged

I'm Rob.  Working on my '93 Reef Blue coupe.  Stock internal 302, 80 MAF, 75 TB, Victor 5.0, High Ports, 30# inj., B303, 1.6s, Tremec TKO 3550, Quicktime bell, Fidanza Al flywheel, stage 3 ceramic clutch, & 4.10s.  12.68 @ 111.69
'66 F100 shortbed, 352ci, 3 on the tree - on hold
'65 Coupe rolling chassis - on hold
Parts I'm selling: 
Hardened Push Rods - Trick Flow 6.2" .080 - $60
Misc. Fox Body Interior Pieces
David Claflin
Adv_SBFTechie
Big Block
****
Offline Offline

Posts: 7871


Location: Redneck Riviera (Ft Walton Beach Florida)

« Reply #5 on: August 30, 2014, 09:55:07 am »

It'll be NA

Here's an SMII upper for comparison
Logged

1990 Red LX, 306, 75MM, ported gt40's, Holley SMII, accufab longtubes, 3" exhaust, 4.10's, 318RWHP/316RWTQ
1985 LTD LX 302, ported TW's, XE-264 cam, ported Holley SMII, 75MM-R TB, MAC 1 3/4" longtubes, 4R70W, mach 1 brakes
1988 GT long term project
Outlaw Bill
Adv_SBFTechie
Big Block
****
Offline Offline

Posts: 4757


Location: Canton, Michigan

« Reply #6 on: August 30, 2014, 10:59:10 am »

The rod should help some, but probably will still not make it comparable to the Holley. The turn radius is so much larger on the Holley compared to the TFS, the TFS design will not allow that large of a radius. Should be interesting to see the results.
Logged

www.TeamZmotorsports.net

TeamZmotorsports 25.2 outlaw drag radial stock suspension 1991 Mustang
Thank You to the following for their help
TeamZmotorsports
Marcella Manifolds
Schoneck Composite
Ultimate Converter Concepts


"Stupid is as stupid does", "You can't fix stupid"
"Common sense is not common"
David Claflin
Adv_SBFTechie
Big Block
****
Offline Offline

Posts: 7871


Location: Redneck Riviera (Ft Walton Beach Florida)

« Reply #7 on: August 30, 2014, 01:18:56 pm »

The rod should help some, but probably will still not make it comparable to the Holley. The turn radius is so much larger on the Holley compared to the TFS, the TFS design will not allow that large of a radius. Should be interesting to see the results.
I think they had to do that for hood clearance. If memory serves the TFS lower is a little bit higher than the holley lower, so the upper would have to be lower to clear. Guess I could measure those I have to see and compare... Wonder, Ponder
Logged

1990 Red LX, 306, 75MM, ported gt40's, Holley SMII, accufab longtubes, 3" exhaust, 4.10's, 318RWHP/316RWTQ
1985 LTD LX 302, ported TW's, XE-264 cam, ported Holley SMII, 75MM-R TB, MAC 1 3/4" longtubes, 4R70W, mach 1 brakes
1988 GT long term project
347HO
A-1 Super Genious / Director of Maintenance
Section Moderator
Big Block
****
Offline Offline

Posts: 12814


Location: Seattle, Washington
I believe they landed on the moon.


« Reply #8 on: August 30, 2014, 01:53:55 pm »

I can think of some quick ways to increase surface area to the runners...
And decrease runner length, but that may not be tested direction you're thinking
Logged




... it was REALLY revving at like 4K...
If I saw that thing in my rear view Im pulling over to let you by, I be scared of that thing Huh? i dont know wich car is uglier ur or mine?
Javier
Ugly?  Easy now -- that's my baby and it's got lots of unique character!  When I drop that built 445" stroker in it you won't have any time to "pull over to let me pass" because I'll have already blown past you when you figure out what the hell was that loud noise behind you . . .  
David Claflin
Adv_SBFTechie
Big Block
****
Offline Offline

Posts: 7871


Location: Redneck Riviera (Ft Walton Beach Florida)

« Reply #9 on: August 30, 2014, 04:39:36 pm »

I can think of some quick ways to increase surface area to the runners...
And decrease runner length, but that may not be tested direction you're thinking
What I did with to shorten the runners on the SMII I have on the LTD is to cut through the port wall with a dremel about 3" down the port, and then used a sawzall to cut the walls down to where I'd cut with the dremel. Crude but effective, then I used the aluminum burr to cut down the remainder of the wall to make it smooth. My old timers set in and I forgot to take some pics before I dropped it off to get welded up.
Logged

1990 Red LX, 306, 75MM, ported gt40's, Holley SMII, accufab longtubes, 3" exhaust, 4.10's, 318RWHP/316RWTQ
1985 LTD LX 302, ported TW's, XE-264 cam, ported Holley SMII, 75MM-R TB, MAC 1 3/4" longtubes, 4R70W, mach 1 brakes
1988 GT long term project
CDW6212R
Big Block
*****
Offline Offline

Posts: 2448


Location: Knoxville, TN.

« Reply #10 on: August 31, 2014, 11:44:47 am »

That's cool, I can see that.

While you are working on that upper David, can I borrow the lower, for a long while? Asking
Logged

Don

1991 Mark VII LSC Special Edition, soon to be OBDII and 4R70W, then GTC body kit and 347.
1998 Mountaineer, plans for A4WD and KB 2200 blower later, XP8 parts, paint and a 332.
1973 Ranchero and 72 Sport front end ...will be a 351 Clevor, EFI and 4R70W.
scienceguy
Big Block
*****
Offline Offline

Posts: 2413


Location: West Virginia

« Reply #11 on: August 31, 2014, 09:47:56 pm »

Good additional info on the very subject...

http://www.yellowbullet.com/forum/showthread.php?t=1024402
Logged

1966 Mustang, Toploader 4-speed
Pump Gas, Flat Tappet 306
9.88 @ 135.67
jayh
Big Block
*****
Offline Offline

Posts: 5471

Location: Buffalo

« Reply #12 on: September 01, 2014, 09:25:35 am »

How awesome is that when Darin Morgan replies nice
Logged

425" pump gas 6.2@110
David Claflin
Adv_SBFTechie
Big Block
****
Offline Offline

Posts: 7871


Location: Redneck Riviera (Ft Walton Beach Florida)

« Reply #13 on: September 21, 2014, 03:39:17 pm »

This is what I've got so far, I cut down that little bump on top, widened the top a little before it gets to the end of the crossover, roughed in one of the inlets, and put the rod where I think it'll work. Any suggestions feel free to throw them out.

One thing I wonder if I need to change is the way the roof and floor pinch in just behind the throttle body. It seems like it's meant to direct air to the front and rear of the crossover, but if I'm going to be shortening the runners I wonder if that is necessary to keep those intact.
Logged

1990 Red LX, 306, 75MM, ported gt40's, Holley SMII, accufab longtubes, 3" exhaust, 4.10's, 318RWHP/316RWTQ
1985 LTD LX 302, ported TW's, XE-264 cam, ported Holley SMII, 75MM-R TB, MAC 1 3/4" longtubes, 4R70W, mach 1 brakes
1988 GT long term project
David Claflin
Adv_SBFTechie
Big Block
****
Offline Offline

Posts: 7871


Location: Redneck Riviera (Ft Walton Beach Florida)

« Reply #14 on: September 30, 2014, 06:28:33 pm »

I got the upper cut over the weekend, found something rather peculiar. The large port openings in the port entry neck down in the middle of the upper, and then open up again at the upper/lower split.

Here is the plenum with 2 1/2" of divider walls cut out



This is the remaining runner, if they look smallish it's because the port entry is 1.36x2.0", whereas the port at the upper/lower split is 1.36x2.39". I may cut out a little more of the port to get rid of that.



This with the parts mocked up, I still have to smooth down where I cut the dividers out, smooth the transition from the rod into the port, and maybe fill that little hole in the center of the runners.


Logged

1990 Red LX, 306, 75MM, ported gt40's, Holley SMII, accufab longtubes, 3" exhaust, 4.10's, 318RWHP/316RWTQ
1985 LTD LX 302, ported TW's, XE-264 cam, ported Holley SMII, 75MM-R TB, MAC 1 3/4" longtubes, 4R70W, mach 1 brakes
1988 GT long term project
Pages: [1] 2 3 Go Up Print 
« previous next »
Jump to:  



Powered by MySQL Powered by PHP Valid XHTML 1.0! Valid CSS!
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines



408 Stroker