TFS stage 1 cam?

1

1990LXDropTop

New Member

Dec 4, 2003

430

0

0

Western Massachusetts

Dec 8, 2004

#1

• Dec 8, 2004

• #1

I need to decide on a cam that won't affect piston to valve clearance. It will be run with a set of Edelbrock performer 60379 heads, 1.6 rockers, explorer intake. I was planning on the e-cam, but am afraid I won't like it. Should the TFS stg 1 be okay? I do not want to have to flycut the pistons.

 

X

xplo89gt

Founding Member

Jul 14, 1999

945

0

16

Boston, MA

Dec 8, 2004

#2

• Dec 8, 2004

• #2

I dont have specs handy, but im pretty sure a tfs stage 1 will work fine with that setup. Nevertheless you need to check Piston to Valve Clearance when installing any cam.

I'm using TFS TW heads, TFS 1.6 rockers, and TFS stage 1 cam.

 

nito88stang

Founding Member

May 23, 2002

2,012

0

46

Fullerton, California

Dec 8, 2004

#3

• Dec 8, 2004

• #3

Regardless, like said above, clay those pistons. Better to know during assembly than during disassambly.

Trickflow heads and cam here, although i have ginormous flycuts

 

1

1990LXDropTop

New Member

Dec 4, 2003

430

0

0

Western Massachusetts

Dec 8, 2004

#4

• Dec 8, 2004

• #4

What is meant by "claying" the pistons? Simply putting some clay on each one to see if it touches the valves with the cam installed? How exactly do you check p/v clearance??

 

nito88stang

Founding Member

May 23, 2002

2,012

0

46

Fullerton, California

Dec 9, 2004

#5

• Dec 9, 2004

• #5

install cam, put clay on piston valve reliefs, install head, add rockers and turn the engine slowly till the intake and exhaust valves open and close on the clayed piston. Remove rockers and head, measure thickness of clay for clearance.

 

1

1990LXDropTop

New Member

Dec 4, 2003

430

0

0

Western Massachusetts

Dec 9, 2004

#6

• Dec 9, 2004

• #6

Thats what I thought... Do I just check it on one of the pistons, like piston #1? I have to fully torque down the heads to specs, and assemble the entire valve train? Then take it all apart again to measure the thickness of the clay?

 

nito88stang

Founding Member

May 23, 2002

2,012

0

46

Fullerton, California

Dec 9, 2004

#7

• Dec 9, 2004

• #7

you just have to install the two rockers on that one piston. I only torqued the head down to 50lbs. I noticed i had a crapload of clearance so i went with it. If you notice your clearance is iffy, then do it again and torque the head down to the proper torque and measure again.

 

Funanin

Founding Member

Nov 26, 2001

356

0

0

Horsham, Pennsylvania

Dec 9, 2004

#8

• Dec 9, 2004

• #8

what would be considered "iffy"? 1/4"? 1/2"?

 

nito88stang

Founding Member

May 23, 2002

2,012

0

46

Fullerton, California

Dec 9, 2004

#9

• Dec 9, 2004

• #9

i believe anything below 0.120 is iffy if i'm correct but i dont have the figures here at my desk they're in the garage. Do a quick search for "piston valve clearance" it should yield good results.

 

9

90Notch

Founding Member

Jan 31, 2002

1,046

0

0

Westwood, MA & yes it's killing me that I'm no

Dec 9, 2004

#10

• Dec 9, 2004

• #10

You want to shoot for 0.100" on intake and 0.125" on exhaust for clearance.

I personally would consider running a Crane 444221 (old 2030) over TFS-1 with those heads but TFS-1 vlv events per their site are:

int opens 3 BTDC
exh closes 4 BTDC

You should have plenty of room but checking is always a good thing. When you put the clay on the piston make sure to spray piston with WD-40 first so it doesn't stick and best way to measure impression thickness is to cut clay through middle of impression with razor blade.

 

R

red93fox

New Member

Aug 25, 2004

41

0

0

Dec 9, 2004

#11

• Dec 9, 2004

• #11

so what happens if the cam doesnt clear. he cant return it so he's basically stuck with it. i guess my question would be has ANYONE ever heard of anyone else having any p-to-v clearance issues? and whats the specs on the 2030?

 

BlownStangGT

REPEAT

Founding Member

Jan 22, 2002

3,860

6

58

Lancaster, PA

Dec 9, 2004

#12

• Dec 9, 2004

• #12

I have a friend that runs the tfs stage 1 cam with tw heads on stock shortblock and works great

 

1

1990LXDropTop

New Member

Dec 4, 2003

430

0

0

Western Massachusetts

Dec 9, 2004

#13

• Dec 9, 2004

• #13

So with an e-cam or crane 2040, with 1.6 rockers I should be fine right?

 

E

eagle87

Member

Apr 30, 2003

62

0

6

New York

Dec 9, 2004

#14

• Dec 9, 2004

• #14

For 139.00 bucks I've never heard anybody say a bad thing about this cam I'm sure there are better cams but not bad for that kind of cash...

 

Funanin

Founding Member

Nov 26, 2001

356

0

0

Horsham, Pennsylvania

Dec 9, 2004

#15

• Dec 9, 2004

• #15

1990LXDropTop said:

So with an e-cam or crane 2040, with 1.6 rockers I should be fine right?

Click to expand...

pretty sure as long as u put those heads on it will be fine. With the stock E7's it will be really close with 1.6 rr because the e-cam has .498 lift and i think the stock heads and valves can only go up to .500.

The problem with the tfs cam is that it is designed for use with TFS heads. The duration is higher than the e-cam which will drop u more out of ur powerband than the e-cam. (without the right gears or stall converter if AOD).

I dont know what the maximum lift is on the valvetrain set of those heads, but its probably like 550 to 600. So either one of those cams should work with those heads... you could even bump it up to a 1.7 Rocker for a little extra lift. (.529/.529 on the e-cam, and .530/.541 on the TFS1)

 

1

1990LXDropTop

New Member

Dec 4, 2003

430

0

0

Western Massachusetts

Dec 9, 2004

#16

• Dec 9, 2004

• #16

the maximum lift on the heads is .575 lift. I think I will go with the crane 2040 (e-cam) with fms 1.6 rockers. I'm going to get the fms lifters too. Does anyone know if the fms hardened pushrods are the correct length for the 2040 cam? I remember my friend said he ran them with the exact same set-up, but had to use shims on all the rockers.

 

Funanin

Founding Member

Nov 26, 2001

356

0

0

Horsham, Pennsylvania

Dec 9, 2004

#17

• Dec 9, 2004

• #17

pretty sure they are the same... sometimes u do have to shim, just the way things are.

 

9

90Notch

Founding Member

Jan 31, 2002

1,046

0

0

Westwood, MA & yes it's killing me that I'm no

Dec 9, 2004

#18

• Dec 9, 2004

• #18

Yes the 2040 w/1.7s will clear with room to spare. Intake opens 0.05" at 0 degree TDC (basically intake starts opens as piston is on way down) and exhaust closes at TDC (0.05).

TFS-1 will outperform the E, the 6037s are good heads but don't flow as well on exhaust as say TWs or AFRs.

2030 - 270/278 216/220 .533/.544 112LSA
Installed on a 112ICL will make some real nice power & give a nice flat torque curve.

 

R

rubberneck

New Member

Dec 15, 2004

20

0

0

Dec 15, 2004

#19

• Dec 15, 2004

• #19

1990LXDropTop said:

I need to decide on a cam that won't affect piston to valve clearance. It will be run with a set of Edelbrock performer 60379 heads, 1.6 rockers, explorer intake. I was planning on the e-cam, but am afraid I won't like it. Should the TFS stg 1 be okay? I do not want to have to flycut the pistons.

Click to expand...

i have 60379's with an f-cam, no clearance issues, stock forged pistons