Taking Estimates...

Skyman · 05-22-2002, 01:20 PM

Well Im going to the track this saturday. Anyone have estimates as to what my car will run? Im hoping for a tenth or two more, but I'm not going to hope for anything more then some more 12.5's.

2 of my friends are going to run their cars also, I'll list their mods and you guys can take cracks at the ET's.

#1 - MY Car -
TFS TW Heads, Holley Intake, 70mm TB, shorty headers, E-303 Cam, 3.73 gears, on 26x10 slicks. Lightened

#2 -88 Notch-
TFS TW Heads, RPM Intake, 70mm TB, Longtubes, .540lift 230 duration cam, 3.73 gears, 11:1 compression, on 26x8 slicks w/ lowering springs. Full weight

#3 -89 Notch-
Lightly Ported TFS TW Heads, Custom Cam, Vic Jr Intake, 750 carb, Longtubes, 4.10 gears, lightened, some accesories removed. ON 26x10 ET Streets.

Skyler

PKRWUD · 05-22-2002, 01:29 PM

You didn't mention your rr's. Are they in?

Take care,
-Chris

PKRWUD · 05-22-2002, 01:30 PM

Nevermind. I didn't see your sig.

Take care,
-Chris

89 Cobra LX · 05-22-2002, 04:10 PM

My guesses....

#1 = 12.3 @ 109

#2 = 12.8 @106

#3 = 12.1 @ 111

This was based on what your car ran before. I'm curious to see what all the extra work you did was worth.

Unit 5302 · 05-22-2002, 06:03 PM

#1 12.00@112mph

#2 11.90@115mph

#3 11.50@118mph

TJR · 05-22-2002, 06:14 PM

#1 12.20@110

#2 11.80@115

#3 11.70@116

Skyman · 05-22-2002, 08:09 PM

Havnt put the rockers on yet... Got my motor all together to that point. I havnt installed rockers before, I was lookin for an article online how to do it.. any suggestions?

Skyler

PKRWUD · 05-22-2002, 08:36 PM

As far as your rockers, try it this way:

1) Install one rocker arm at a time by inserting the 5/16" bolt through the top of the rocker arm, MAKING SURE THAT THE FLAT SIDE OF THE FULCRUM IS FACING THE BOLT HEAD. After this is done, slide the pedestal onto the bolt with the curved area of the saddle contacting the rounded side of the fulcrum. Next, slide the guide channel onto the bolt with the raised edge facing up toward the rocker arm, then loosely thread the bolt into the head, while making sure that the pedestal is in the channel and the saddle is in the correct location on the fulcrum. Install all 16, and snug down the bolts by hand.

2) Rotate the engine until the balancer reads TDC on the compression stroke.

3) Check the rotor in the distributor, and verify that it is pointing at the #1 wire on the cap. If it's not, rotate the engine 360 degrees.

4) With a 1/4" drive ratchet, tighten the following rockers until you can no longer rotate the pushrod:
Cylinder #1 intake and exhaust,
Cylinder #3 exhaust,
Cylinder #4 intake,
Cylinder #7 exhaust,
Cylinder #8 intake.

5) Now torque each of those to 20 ft.lbs.

6) Rotate the engine 360 degrees, so the balancer reads TDC again.

7) With a 1/4" ratchet, tighten these rockers (again, to zero lash):
Cylinder #3 intake,
Cylinder #2 exhaust,
Cylinder #7 intake,
Cylinder #6 exhaust.

8) Now torque each of those to 20 ft.lbs.

9) Rotate the engine 90 degrees, and with the ratchet, tighten to zero lash on these rockers:
Cylinder #2 intake
Cylinder #4 exhaust
Cylinder #5 intake and exhaust
Cylinder #6 intake
Cylinder #8 exhaust

10) Now torque each of those to 20 ft.lbs.

***If it takes more than a full turn to reach 20 ft.lbs. torque, after you have reached zero lash, you're gonna need shims.

Take care,
-Chris

Skyman · 05-22-2002, 08:40 PM

****, sounds kinda complicated, Im gonna have to take my time on this.

Skyler

PKRWUD · 05-22-2002, 08:46 PM

C'mon, Sky, those are the easy instructions! It's not that tough. I know you can do it!

Take care,
-Chris

TJR · 05-22-2002, 10:34 PM

Sky, do your TFS heads use stud mount or pedestal mount rockers? Those instructions are for the pedestal ones, which TFS stopped making a few years ago due to problems with the valvetrain geometry.

Skyman · 05-22-2002, 11:23 PM

I have stud mount.

Skyler

PKRWUD · 05-23-2002, 06:27 AM

Fine.

1) Install all 16, and snug down the nuts by hand.

2) Rotate the engine until the balancer reads TDC on the compression stroke.

3) Check the rotor in the distributor, and verify that it is pointing at the #1 wire on the cap. If it's not, rotate the engine 360 degrees.

4) With a 1/4" drive ratchet, tighten the following rockers until you can no longer rotate the pushrod:
Cylinder #1 intake and exhaust,
Cylinder #3 exhaust,
Cylinder #4 intake,
Cylinder #7 exhaust,
Cylinder #8 intake.

5) Now tighten each of those an additional 3/4 turn beyond zero lash.

6) Rotate the engine 360 degrees, so the balancer reads TDC again.

7) With a 1/4" ratchet, tighten these rockers (again, to zero lash):
Cylinder #3 intake,
Cylinder #2 exhaust,
Cylinder #7 intake,
Cylinder #6 exhaust.

8) Now tighten each of those an additional 3/4 turn beyond zero lash.

9) Rotate the engine 90 degrees, and with the ratchet, tighten to zero lash on these rockers:
Cylinder #2 intake
Cylinder #4 exhaust
Cylinder #5 intake and exhaust
Cylinder #6 intake
Cylinder #8 exhaust

10) Now tighten each of those an additional 3/4 turn beyond zero lash.

Take care,
-Chris

TJR · 05-23-2002, 07:16 AM

I don't mean to be a pain Chris, but I don't understand the torque to 20 ft.lbs. and shim part for stud mounts. I've always adjusted stud mounts by tightening the rocker to 1/2 - 3/4 of a turn past zero lash, then use an an allen wrench to lock them down.

PKRWUD · 05-23-2002, 09:38 AM

you're not a pain, you're right.

I had edited it for bolts, and never retyped it after learning Sky's were newer heads.

my bad

thanks for being gentle with me.

i'll edit again

Take care,
-Chris

PKRWUD · 05-23-2002, 09:43 AM

all better.

Take care,
-Chris

TJR · 05-23-2002, 10:46 AM

Quote:

thanks for being gentle with me.

Hey, I'm thrilled that I was able to help you out for a change.

BTW, how's the sprint car doing this season?

PKRWUD · 05-23-2002, 10:54 AM

After 6 races, we're 3rd in the points. We've had some lousy luck, but the car is fast, so we're still in there. We should be in 2nd after the next race.

Thanks for asking!

Take care,
-Chris

Skyman · 05-23-2002, 01:41 PM

Zero lash is when its tight?

PKRWUD · 05-23-2002, 02:12 PM

zero lash is when the pushrod can no longer be moved up and down at all. It's easiest to spin it between your thumb and middle finger while you're tightening. As soon as you can't spin it anymore, you're close. You want to be right at that fine point between being able to spin it, and not being able to. That is zero lash.

Take care,
-Chris

05-22-2002, 08:40 PM	#9
Skyman I need 110mph Trap Speed! Join Date: Feb 1999 Location: So, CA Posts: 4,315	**, sounds kinda complicated, Im gonna have to take my time on this. Skyler __________________ 2001 BMW M3 6spd 12.79@108 RIP ---- 1993 Notch w/ 98 4V 4.6 Fasttt... -1989 Saleen Mustang #406- 12.32@109 -1999 Black Cobra Coupe-** JBA Shorties, Bassani Cat-X, Magnaflow 3", Pulleys, 85mm Pro-M, Ported Intake, Soild Rear w/ 4.30s, Tubular Front End, X2C arms, 13lb batt, few others.

05-22-2002, 08:46 PM	#10
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	C'mon, Sky, those are the easy instructions! It's not that tough. I know you can do it! Take care, -Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

05-22-2002, 10:34 PM	#11
TJR Registered Member Join Date: Apr 2001 Location: Bowling Green, OH Posts: 270	Sky, do your TFS heads use stud mount or pedestal mount rockers? Those instructions are for the pedestal ones, which TFS stopped making a few years ago due to problems with the valvetrain geometry. __________________ 1989 lx notch 89,000 miles 5-speed, bolt-ons, 3.73, TFS TWs, TFS Track Heat, TFS Stage 1 cam Last edited by TJR; 05-22-2002 at 10:40 PM..

05-22-2002, 11:23 PM	#12
Skyman I need 110mph Trap Speed! Join Date: Feb 1999 Location: So, CA Posts: 4,315	I have stud mount. Skyler __________________ 2001 BMW M3 6spd 12.79@108 RIP ---- 1993 Notch w/ 98 4V 4.6 Fasttt... -1989 Saleen Mustang #406- 12.32@109 -1999 Black Cobra Coupe- JBA Shorties, Bassani Cat-X, Magnaflow 3", Pulleys, 85mm Pro-M, Ported Intake, Soild Rear w/ 4.30s, Tubular Front End, X2C arms, 13lb batt, few others.

05-23-2002, 06:27 AM	#13
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	Fine. 1) Install all 16, and snug down the nuts by hand. 2) Rotate the engine until the balancer reads TDC on the compression stroke. 3) Check the rotor in the distributor, and verify that it is pointing at the #1 wire on the cap. If it's not, rotate the engine 360 degrees. 4) With a 1/4" drive ratchet, tighten the following rockers until you can no longer rotate the pushrod: Cylinder #1 intake and exhaust, Cylinder #3 exhaust, Cylinder #4 intake, Cylinder #7 exhaust, Cylinder #8 intake. 5) Now tighten each of those an additional 3/4 turn beyond zero lash. 6) Rotate the engine 360 degrees, so the balancer reads TDC again. 7) With a 1/4" ratchet, tighten these rockers (again, to zero lash): Cylinder #3 intake, Cylinder #2 exhaust, Cylinder #7 intake, Cylinder #6 exhaust. 8) Now tighten each of those an additional 3/4 turn beyond zero lash. 9) Rotate the engine 90 degrees, and with the ratchet, tighten to zero lash on these rockers: Cylinder #2 intake Cylinder #4 exhaust Cylinder #5 intake and exhaust Cylinder #6 intake Cylinder #8 exhaust 10) Now tighten each of those an additional 3/4 turn beyond zero lash. Take care, -Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE! Last edited by PKRWUD; 05-23-2002 at 09:41 AM..

05-22-2002, 01:20 PM	#1
Skyman I need 110mph Trap Speed! Join Date: Feb 1999 Location: So, CA Posts: 4,315	Taking Estimates... Well Im going to the track this saturday. Anyone have estimates as to what my car will run? Im hoping for a tenth or two more, but I'm not going to hope for anything more then some more 12.5's. 2 of my friends are going to run their cars also, I'll list their mods and you guys can take cracks at the ET's. #1 - MY Car - TFS TW Heads, Holley Intake, 70mm TB, shorty headers, E-303 Cam, 3.73 gears, on 26x10 slicks. Lightened #2 -88 Notch- TFS TW Heads, RPM Intake, 70mm TB, Longtubes, .540lift 230 duration cam, 3.73 gears, 11:1 compression, on 26x8 slicks w/ lowering springs. Full weight #3 -89 Notch- Lightly Ported TFS TW Heads, Custom Cam, Vic Jr Intake, 750 carb, Longtubes, 4.10 gears, lightened, some accesories removed. ON 26x10 ET Streets. Skyler __________________ 2001 BMW M3 6spd 12.79@108 RIP ---- 1993 Notch w/ 98 4V 4.6 Fasttt... -1989 Saleen Mustang #406- 12.32@109 -1999 Black Cobra Coupe- JBA Shorties, Bassani Cat-X, Magnaflow 3", Pulleys, 85mm Pro-M, Ported Intake, Soild Rear w/ 4.30s, Tubular Front End, X2C arms, 13lb batt, few others.

05-22-2002, 01:29 PM	#2
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	You didn't mention your rr's. Are they in? Take care, -Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

05-22-2002, 01:30 PM	#3
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	Nevermind. I didn't see your sig. Take care, -Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

05-22-2002, 04:10 PM	#4
89 Cobra LX Don Corlione Join Date: Jun 2001 Location: Omaha NE USA Posts: 491	My guesses.... #1 = 12.3 @ 109 #2 = 12.8 @106 #3 = 12.1 @ 111 This was based on what your car ran before. I'm curious to see what all the extra work you did was worth. __________________ Eric - 89 Mustang LX coupe 5 speed 302-Cobra Intake-GT40p heads-TFS stage 1 cam-FRPP 1.6 roller rockers-3:73 gears-KYB shocks and struts-Eibach Pro-kit-HPM Mega-bite upper and lower control arms-FRPP aluminum driveshaft-16x8 Chrome Cobra Rs R.H.C. #14

05-22-2002, 06:03 PM	#5
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	#1 12.00@112mph #2 11.90@115mph #3 11.50@118mph

05-22-2002, 06:14 PM	#6
TJR Registered Member Join Date: Apr 2001 Location: Bowling Green, OH Posts: 270	#1 12.20@110 #2 11.80@115 #3 11.70@116 __________________ 1989 lx notch 89,000 miles 5-speed, bolt-ons, 3.73, TFS TWs, TFS Track Heat, TFS Stage 1 cam

05-22-2002, 08:09 PM	#7
Skyman I need 110mph Trap Speed! Join Date: Feb 1999 Location: So, CA Posts: 4,315	Havnt put the rockers on yet... Got my motor all together to that point. I havnt installed rockers before, I was lookin for an article online how to do it.. any suggestions? Skyler __________________ 2001 BMW M3 6spd 12.79@108 RIP ---- 1993 Notch w/ 98 4V 4.6 Fasttt... -1989 Saleen Mustang #406- 12.32@109 -1999 Black Cobra Coupe- JBA Shorties, Bassani Cat-X, Magnaflow 3", Pulleys, 85mm Pro-M, Ported Intake, Soild Rear w/ 4.30s, Tubular Front End, X2C arms, 13lb batt, few others.

05-22-2002, 08:36 PM	#8
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	As far as your rockers, try it this way: 1) Install one rocker arm at a time by inserting the 5/16" bolt through the top of the rocker arm, MAKING SURE THAT THE FLAT SIDE OF THE FULCRUM IS FACING THE BOLT HEAD. After this is done, slide the pedestal onto the bolt with the curved area of the saddle contacting the rounded side of the fulcrum. Next, slide the guide channel onto the bolt with the raised edge facing up toward the rocker arm, then loosely thread the bolt into the head, while making sure that the pedestal is in the channel and the saddle is in the correct location on the fulcrum. Install all 16, and snug down the bolts by hand. 2) Rotate the engine until the balancer reads TDC on the compression stroke. 3) Check the rotor in the distributor, and verify that it is pointing at the #1 wire on the cap. If it's not, rotate the engine 360 degrees. 4) With a 1/4" drive ratchet, tighten the following rockers until you can no longer rotate the pushrod: Cylinder #1 intake and exhaust, Cylinder #3 exhaust, Cylinder #4 intake, Cylinder #7 exhaust, Cylinder #8 intake. 5) Now torque each of those to 20 ft.lbs. 6) Rotate the engine 360 degrees, so the balancer reads TDC again. 7) With a 1/4" ratchet, tighten these rockers (again, to zero lash): Cylinder #3 intake, Cylinder #2 exhaust, Cylinder #7 intake, Cylinder #6 exhaust. 8) Now torque each of those to 20 ft.lbs. 9) Rotate the engine 90 degrees, and with the ratchet, tighten to zero lash on these rockers: Cylinder #2 intake Cylinder #4 exhaust Cylinder #5 intake and exhaust Cylinder #6 intake Cylinder #8 exhaust 10) Now torque each of those to 20 ft.lbs. ***If it takes more than a full turn to reach 20 ft.lbs. torque, after you have reached zero lash, you're gonna need shims. Take care, -Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

05-23-2002, 07:16 AM	#14
TJR Registered Member Join Date: Apr 2001 Location: Bowling Green, OH Posts: 270	I don't mean to be a pain Chris, but I don't understand the torque to 20 ft.lbs. and shim part for stud mounts. I've always adjusted stud mounts by tightening the rocker to 1/2 - 3/4 of a turn past zero lash, then use an an allen wrench to lock them down. __________________ 1989 lx notch 89,000 miles 5-speed, bolt-ons, 3.73, TFS TWs, TFS Track Heat, TFS Stage 1 cam

05-23-2002, 09:38 AM	#15
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	you're not a pain, you're right. I had edited it for bolts, and never retyped it after learning Sky's were newer heads. my bad thanks for being gentle with me. i'll edit again Take care, -Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

05-23-2002, 09:43 AM	#16
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	all better. Take care, -Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

05-23-2002, 10:54 AM	#18
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	After 6 races, we're 3rd in the points. We've had some lousy luck, but the car is fast, so we're still in there. We should be in 2nd after the next race. Thanks for asking! Take care, -Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

05-23-2002, 01:41 PM	#19
Skyman I need 110mph Trap Speed! Join Date: Feb 1999 Location: So, CA Posts: 4,315	Zero lash is when its tight? __________________ 2001 BMW M3 6spd 12.79@108 RIP ---- 1993 Notch w/ 98 4V 4.6 Fasttt... -1989 Saleen Mustang #406- 12.32@109 -1999 Black Cobra Coupe- JBA Shorties, Bassani Cat-X, Magnaflow 3", Pulleys, 85mm Pro-M, Ported Intake, Soild Rear w/ 4.30s, Tubular Front End, X2C arms, 13lb batt, few others.

05-23-2002, 02:12 PM	#20
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	zero lash is when the pushrod can no longer be moved up and down at all. It's easiest to spin it between your thumb and middle finger while you're tightening. As soon as you can't spin it anymore, you're close. You want to be right at that fine point between being able to spin it, and not being able to. That is zero lash. Take care, -Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

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