Rev.... - Page 3

09-30-2000, 09:36 PM

ive been on vacation, just got back. i dissagree with some of shaggy's suggestions, especially about putting an open spacer on a dual plane manifold....especially the performer. also i think the car could use a bigger exaust system, like 2.25"--2.5" pipes...no bigger. you know the 3.08 gears aint getting it, and no matter what gear you got, you will not get a 2-2.1 60 ft. time with a peg leg rear axle. the long runners on a 5.0 intake, fuel injection, and short headers will all contribute more to the low end torque than the setup you have, however its not a bad thing. you may want to check your initial and total timing. not enough timing will make your car suck top end, but i dont think you need some kind of msd or mallory setup with your combo. unless you are running a blower, nitrous, or high compression, the ignition you have now is plenty. put the lightest advance prings you can in the bottom of your distributor, get the timing in early, and run it up till it pings(be sure you know what that sound is like) and retard it until it just stops pinging. read your plugs. you can also get power out of jetting your carb if you know how. where are you launching your car at? if you hold the brake and give it too much rpm the body will rise and have to move further when the weight transfers on launch, thereby killing your 60ft. forget 2-2500 and try 1200 rpm launches. trust me on this one. still its 3.08s and peg leg......the best way to make a 300hp car launch like 150hp is with an open differential. i cant remember what you said the cam was...anyway.

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67stang coupe, carb on 5.0, 4 speed, 4.11's....8.41 @ 83mph in 1/8 wanting 7's

09-30-2000, 09:45 PM

oh, if the car has an open diff......no need for traction bars in almost all cases. only if you are making enough power to have a wheel hop problem do you need traction bars, otherwise you'll be bolting on unnecessary unsprung weight.

------------------
67stang coupe, carb on 5.0, 4 speed, 4.11's....8.41 @ 83mph in 1/8 wanting 7's

Shaggy · 10-01-2000, 01:35 AM

I have to disagree with 7up I have personally cut a best of 1.98 on a peg leg 2.78 gear with 205/60/14 general xp2000 tires with consistent 2.0's. The one inch spacer is to "poor boy" a higher rpm intake without paying for a new intake. With those heads it should breath more than a perfomer would adequaly feed. I agree the exhaust would help, but I don't think it is the majority of his problem considering I ran a best of 14.04 (same pass as the 1.98 60') with 14.1's cosistant enough to dial in with the cast iron manifolds and dual 2 inch with oem style mufflers. the traction bars were what got me the low 60's and able to launch consistenly on the second yellow to cut .5 lights. I was also launching with my foot as close to the floor as I could on the gas. Without traction bars my 60's were all over the place with only one wheel getting power. Also on the ignition note I used to think the same think that you didn't need all of it till I did it to a my at the time bone stock 289 because it was laying around from another car I had. It made a very impressive difference and I am now sold on it.

My set up for the 14's was

subframe connectors
cast iron exhaust manifolds
2" duals with oem style mufflers
351W heads 1.94 int 1.6 exhuast mild port work
Factory ford lightning cam advanced 5 degrees(got it for $35 new and it was bigger than the stock 289 cam just had to change my firing order)
1.7 RR's
Mallory unilite
Mallory coil
MSD 6a
C-4
TCI 11 inch converter gave about a 3000 on the foot brake
2.78 peg leg
205/60/14 general xp2000's
universal slapper bars modded to hit the front spring eye and adjusted so they just barely touched.
front shocks that are blown (I have had the car for about 5 years and the were wore out when I got it but they let the nose lift real good to get some weight on the rear wheels)
Rear shocks are questionable they are 4 year old air shocks that don't hold air anymore.
Ede performer rpm intake (with one inch open phenolic spacer)
700 mechanical secondary Holley
electric fans
Shifted at 5000
Race weight 3125
Best run that set up 1.98 60' 14.04 et at 94.6 mph
My motor is basicaly all in the heads

Thing changed to get in the 13's

C-6
TCI 10 inch converter (footbrakes to 3000 but flashes to 3500)
Hooker 1 3/4 headers (to large for now but stroker is being built right now)
3.25 posi
245/50/14 BFG's
3" duals 2 3" glasspacks at the header and 2 3" dynomax at the axle runs out the back
electric water pump
Aluminum driveshaft
Race weight of 3225 (c-6 and 3"exhaust weighed me down)
shifting first to second at 6000 second to third at 5700
Now my sixty's are sporadic again with a best of 2.06 (ever since I put the gear in traction has been down)
best mph was 98.1
best et 13.85 at 97.84

[This message has been edited by Shaggy (edited 10-01-2000).]

10-01-2000, 10:17 PM

i still disagree and stand by what i said earlier. shaggy's car has better heads and more mods than mine but ive done my homework and an open spacer on a dual plane does nothing but hurt performance. its a cheap mod though so go ahead, i love to learn things on my own too. an "upgrade" to a c-6 isnt necessary when ive seen c-4's run behind big block cars with more power than most wild small blocks. why add the weight? i would also stay with 2.5" exaust at the largest. ive seen too many guys put 3" pipes on their car only to run slower because they killed the flow velocity of the headers not allowing them to scavenge the cylinders. the whole engine is a system, if something doesnt match the combination, you'll never see its power potential. also i woulnt overcarb a smallblock with 700 cfm, especially not manual secondaries with an automatic. oh well. it just like they say.....ask a question, get a conflicting answer between every gearhead.

------------------
67stang coupe, carb on 5.0, 4 speed, 4.11's....8.41 @ 83mph in 1/8 wanting 7's

Shaggy · 10-01-2000, 10:47 PM

I agree with you on the fact my exhaust is to big the c-6 wasn't nessicarilly an upgrade and that it all needs to be a system. I am building a system though just not for the motor that is in it the stroker I was reffering to in on of my posts is a 393 with 11 to 1 compression ported TW's victor JR cam that specs out around .640 intake and .650 exhaust on 110 lc's 244 intake and 248 exhaust duration @ 50 and a little bottle. So what I have is overkill for this baby motor I am just building for the stroker that I am building (It is already balanced just need to assemble and install).

10-02-2000, 06:21 PM

we are probably the only two people in here who can disagree so much and still refrain from cheap shots, shaggy. just goes to show im getting old.

------------------
67stang coupe, carb on 5.0, 4 speed, 4.11's....8.41 @ 83mph in 1/8 wanting 7's

Shaggy · 10-02-2000, 09:12 PM

Agreed 7up

Shaggy · 10-03-2000, 12:07 AM

Just wanted to add that it was also kinda nice for it not to turn into a big overblown arguement. I didn't take it personally and hope you didn't either.

09-30-2000, 09:36 PM	#41
make7UPYOURS Guest Posts: n/a	ive been on vacation, just got back. i dissagree with some of shaggy's suggestions, especially about putting an open spacer on a dual plane manifold....especially the performer. also i think the car could use a bigger exaust system, like 2.25"--2.5" pipes...no bigger. you know the 3.08 gears aint getting it, and no matter what gear you got, you will not get a 2-2.1 60 ft. time with a peg leg rear axle. the long runners on a 5.0 intake, fuel injection, and short headers will all contribute more to the low end torque than the setup you have, however its not a bad thing. you may want to check your initial and total timing. not enough timing will make your car suck top end, but i dont think you need some kind of msd or mallory setup with your combo. unless you are running a blower, nitrous, or high compression, the ignition you have now is plenty. put the lightest advance prings you can in the bottom of your distributor, get the timing in early, and run it up till it pings(be sure you know what that sound is like) and retard it until it just stops pinging. read your plugs. you can also get power out of jetting your carb if you know how. where are you launching your car at? if you hold the brake and give it too much rpm the body will rise and have to move further when the weight transfers on launch, thereby killing your 60ft. forget 2-2500 and try 1200 rpm launches. trust me on this one. still its 3.08s and peg leg......the best way to make a 300hp car launch like 150hp is with an open differential. i cant remember what you said the cam was...anyway. ------------------ 67stang coupe, carb on 5.0, 4 speed, 4.11's....8.41 @ 83mph in 1/8 wanting 7's

09-30-2000, 09:45 PM	#42
make7UPYOURS Guest Posts: n/a	oh, if the car has an open diff......no need for traction bars in almost all cases. only if you are making enough power to have a wheel hop problem do you need traction bars, otherwise you'll be bolting on unnecessary unsprung weight. ------------------ 67stang coupe, carb on 5.0, 4 speed, 4.11's....8.41 @ 83mph in 1/8 wanting 7's

10-01-2000, 01:35 AM	#43
Shaggy Registered Member Join Date: Feb 1999 Location: Houston,TX Posts: 466	I have to disagree with 7up I have personally cut a best of 1.98 on a peg leg 2.78 gear with 205/60/14 general xp2000 tires with consistent 2.0's. The one inch spacer is to "poor boy" a higher rpm intake without paying for a new intake. With those heads it should breath more than a perfomer would adequaly feed. I agree the exhaust would help, but I don't think it is the majority of his problem considering I ran a best of 14.04 (same pass as the 1.98 60') with 14.1's cosistant enough to dial in with the cast iron manifolds and dual 2 inch with oem style mufflers. the traction bars were what got me the low 60's and able to launch consistenly on the second yellow to cut .5 lights. I was also launching with my foot as close to the floor as I could on the gas. Without traction bars my 60's were all over the place with only one wheel getting power. Also on the ignition note I used to think the same think that you didn't need all of it till I did it to a my at the time bone stock 289 because it was laying around from another car I had. It made a very impressive difference and I am now sold on it. My set up for the 14's was subframe connectors cast iron exhaust manifolds 2" duals with oem style mufflers 351W heads 1.94 int 1.6 exhuast mild port work Factory ford lightning cam advanced 5 degrees(got it for $35 new and it was bigger than the stock 289 cam just had to change my firing order) 1.7 RR's Mallory unilite Mallory coil MSD 6a C-4 TCI 11 inch converter gave about a 3000 on the foot brake 2.78 peg leg 205/60/14 general xp2000's universal slapper bars modded to hit the front spring eye and adjusted so they just barely touched. front shocks that are blown (I have had the car for about 5 years and the were wore out when I got it but they let the nose lift real good to get some weight on the rear wheels) Rear shocks are questionable they are 4 year old air shocks that don't hold air anymore. Ede performer rpm intake (with one inch open phenolic spacer) 700 mechanical secondary Holley electric fans Shifted at 5000 Race weight 3125 Best run that set up 1.98 60' 14.04 et at 94.6 mph My motor is basicaly all in the heads Thing changed to get in the 13's C-6 TCI 10 inch converter (footbrakes to 3000 but flashes to 3500) Hooker 1 3/4 headers (to large for now but stroker is being built right now) 3.25 posi 245/50/14 BFG's 3" duals 2 3" glasspacks at the header and 2 3" dynomax at the axle runs out the back electric water pump Aluminum driveshaft Race weight of 3225 (c-6 and 3"exhaust weighed me down) shifting first to second at 6000 second to third at 5700 Now my sixty's are sporadic again with a best of 2.06 (ever since I put the gear in traction has been down) best mph was 98.1 best et 13.85 at 97.84 [This message has been edited by Shaggy (edited 10-01-2000).]

10-01-2000, 10:17 PM	#44
make7UPYOURS Guest Posts: n/a	i still disagree and stand by what i said earlier. shaggy's car has better heads and more mods than mine but ive done my homework and an open spacer on a dual plane does nothing but hurt performance. its a cheap mod though so go ahead, i love to learn things on my own too. an "upgrade" to a c-6 isnt necessary when ive seen c-4's run behind big block cars with more power than most wild small blocks. why add the weight? i would also stay with 2.5" exaust at the largest. ive seen too many guys put 3" pipes on their car only to run slower because they killed the flow velocity of the headers not allowing them to scavenge the cylinders. the whole engine is a system, if something doesnt match the combination, you'll never see its power potential. also i woulnt overcarb a smallblock with 700 cfm, especially not manual secondaries with an automatic. oh well. it just like they say.....ask a question, get a conflicting answer between every gearhead. ------------------ 67stang coupe, carb on 5.0, 4 speed, 4.11's....8.41 @ 83mph in 1/8 wanting 7's

10-01-2000, 10:47 PM	#45
Shaggy Registered Member Join Date: Feb 1999 Location: Houston,TX Posts: 466	I agree with you on the fact my exhaust is to big the c-6 wasn't nessicarilly an upgrade and that it all needs to be a system. I am building a system though just not for the motor that is in it the stroker I was reffering to in on of my posts is a 393 with 11 to 1 compression ported TW's victor JR cam that specs out around .640 intake and .650 exhaust on 110 lc's 244 intake and 248 exhaust duration @ 50 and a little bottle. So what I have is overkill for this baby motor I am just building for the stroker that I am building (It is already balanced just need to assemble and install).

10-02-2000, 06:21 PM	#46
make7UPYOURS Guest Posts: n/a	we are probably the only two people in here who can disagree so much and still refrain from cheap shots, shaggy. just goes to show im getting old. ------------------ 67stang coupe, carb on 5.0, 4 speed, 4.11's....8.41 @ 83mph in 1/8 wanting 7's

10-02-2000, 09:12 PM	#47
Shaggy Registered Member Join Date: Feb 1999 Location: Houston,TX Posts: 466	Agreed 7up

10-03-2000, 12:07 AM	#48
Shaggy Registered Member Join Date: Feb 1999 Location: Houston,TX Posts: 466	Just wanted to add that it was also kinda nice for it not to turn into a big overblown arguement. I didn't take it personally and hope you didn't either.