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Re: Will it pick up? [Re: Al_Alguire] #1688642
10/21/14 08:16 PM
10/21/14 08:16 PM
Joined: Oct 2009
Posts: 1,267
North, Alabama
D-50 Offline
pro stock
D-50  Offline
pro stock

Joined: Oct 2009
Posts: 1,267
North, Alabama
I have always had my Caltracks in the top hole and everybody is telling him to use bottom hole. I upgraded to a 1050 carb and went to the track 1 time so far and I made 4 passes with zero traction. Should I try the bottom hole. Sorry for the hijack, I might make it back to track this weekend.


1.33 60 ft,6.21 at 110.59 in the 1/8, pump gas small block,2950lbs,drag radials,mufflers and driven to track ...
Re: Will it pick up? [Re: Mr.Yuck] #1688643
10/21/14 08:21 PM
10/21/14 08:21 PM
Joined: Mar 2009
Posts: 2,460
Sydney,Australia
tex013 Offline
top fuel
tex013  Offline
top fuel

Joined: Mar 2009
Posts: 2,460
Sydney,Australia
Mryuck,
I have mine in the lower hole .set bar parallel , 1/4 turn preload both sides with driver in the car. this is as per Travis @ Calvert direction . he said 1/2 turn max preload , 1/8 gap = hard hit.if car pulls increase preload on that side .
I have not adjusted since fitting the caltracs , just play a little with shock setting , softer on looser track

Tex


New best ET 10.259@129.65 .
New best MPH 130.32
Finally fitted a solid cam,
stepped it up a bit more
3690lbs through the mufflers
New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm
Power by Tex's Automotive
Re: Will it pick up? [Re: Mr.Yuck] #1688644
10/21/14 08:50 PM
10/21/14 08:50 PM
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
B
BradH Offline
Taking time off to work on my car
BradH  Offline
Taking time off to work on my car
B

Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
Quote:

Quote:

You will likely have better success in the lower hole. You will also likely kill the tire with the CE shocks. All you can do is tighten them up as much as possible. Caltracs NEED a very tight extension setting.




what setting is that? Lower hole w/ how much pre-load?



FWIW, my E-body is set up in the lower hole w/ 1/2 turn on driver's side, 1/2 + 1/3 turn on passenger side (pulled to the right a bit when both sides were the same) and the Rancho 5-way adjustables on #4 (pretty stiff). Your CEs would need to be on full stiff... and still probably won't be enough.

How much rise do you have from your front suspension from the static ride height? Calvert said it would need 5" (at least) of front-end separation to work, and he was right. With only about 4" it would top out after the hit and cause the rear tires to unload.

EDIT: Do you have adjustable secondary metering plates (or drilled out metering plates)? My experience w/ Six Packs on 440s was that the center carb "wanted" a 65 or 66 jet, but the outboards needed a good bit more fuel on the main circuit than unmodified plates provided.

Last edited by Drummer 1-3/4; 10/21/14 08:55 PM.
Re: Will it pick up? [Re: BradH] #1688645
10/21/14 09:38 PM
10/21/14 09:38 PM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline OP
Not enough dumb comments...yet
Mr.Yuck  Offline OP
Not enough dumb comments...yet

Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Quote:

Quote:

Quote:

You will likely have better success in the lower hole. You will also likely kill the tire with the CE shocks. All you can do is tighten them up as much as possible. Caltracs NEED a very tight extension setting.




what setting is that? Lower hole w/ how much pre-load?



FWIW, my E-body is set up in the lower hole w/ 1/2 turn on driver's side, 1/2 + 1/3 turn on passenger side (pulled to the right a bit when both sides were the same) and the Rancho 5-way adjustables on #4 (pretty stiff). Your CEs would need to be on full stiff... and still probably won't be enough.

How much rise do you have from your front suspension from the static ride height? Calvert said it would need 5" (at least) of front-end separation to work, and he was right. With only about 4" it would top out after the hit and cause the rear tires to unload.

EDIT: Do you have adjustable secondary metering plates (or drilled out metering plates)? My experience w/ Six Packs on 440s was that the center carb "wanted" a 65 or 66 jet, but the outboards needed a good bit more fuel on the main circuit than unmodified plates provided.




unmodified plates..stock 6-pack and I have 5+" of front end travel.

Re: Will it pick up? [Re: Mr.Yuck] #1688646
10/21/14 11:08 PM
10/21/14 11:08 PM
Joined: Oct 2003
Posts: 7,506
Az
Crizila Offline
master
Crizila  Offline
master

Joined: Oct 2003
Posts: 7,506
Az
If that fan locks up before or during the run, you will loose ET.


Fastest 300
Re: Will it pick up? [Re: Crizila] #1688647
10/21/14 11:33 PM
10/21/14 11:33 PM
Joined: Oct 2009
Posts: 1,267
North, Alabama
D-50 Offline
pro stock
D-50  Offline
pro stock

Joined: Oct 2009
Posts: 1,267
North, Alabama
Put a electric water pump on it and a electric fan then and eliminate all of the drag from them. I have been doing that on 2 different cars for at least 15 years with no problem. Driving down the road you do not even have to run the fan at all. I drove street drove them for thousands of miles per year.


1.33 60 ft,6.21 at 110.59 in the 1/8, pump gas small block,2950lbs,drag radials,mufflers and driven to track ...
Re: Will it pick up? [Re: Mr.Yuck] #1688648
10/22/14 01:11 AM
10/22/14 01:11 AM
Joined: Jan 2003
Posts: 6,591
Canton, Ohio
S
Sport440 Offline
master
Sport440  Offline
master
S

Joined: Jan 2003
Posts: 6,591
Canton, Ohio
It will pick up alright, not sure about the teens, but close. I bought the same power robbing plastic summit fan myself. But ran it on a electric motor. Teens will be close IMO

Re: Will it pick up? [Re: Mr.Yuck] #1688649
10/22/14 09:29 AM
10/22/14 09:29 AM
Joined: Jan 2013
Posts: 167
maryland
7
74yellowduster Offline
member
74yellowduster  Offline
member
7

Joined: Jan 2013
Posts: 167
maryland
hey post your weights at all 4 wheels when you get a chance

Re: Will it pick up? [Re: 74yellowduster] #1688650
10/22/14 10:04 AM
10/22/14 10:04 AM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline OP
Not enough dumb comments...yet
Mr.Yuck  Offline OP
Not enough dumb comments...yet

Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Quote:

hey post your weights at all 4 wheels when you get a chance




I have no idea what that would be. If the scales are open I can weigh it, but I think that just gives an overall weight. With me and gas I'm guessing 3800-3900lbs.

Re: Will it pick up? [Re: Mr.Yuck] #1688651
10/22/14 12:15 PM
10/22/14 12:15 PM
Joined: Jul 2004
Posts: 19,317
State of confusion
T
Thumperdart Offline
I Live Here
Thumperdart  Offline
I Live Here
T

Joined: Jul 2004
Posts: 19,317
State of confusion
Quote:

Quote:

Quote:

Quote:

You will likely have better success in the lower hole. You will also likely kill the tire with the CE shocks. All you can do is tighten them up as much as possible. Caltracs NEED a very tight extension setting.




what setting is that? Lower hole w/ how much pre-load?



FWIW, my E-body is set up in the lower hole w/ 1/2 turn on driver's side, 1/2 + 1/3 turn on passenger side (pulled to the right a bit when both sides were the same) and the Rancho 5-way adjustables on #4 (pretty stiff). Your CEs would need to be on full stiff... and still probably won't be enough.

How much rise do you have from your front suspension from the static ride height? Calvert said it would need 5" (at least) of front-end separation to work, and he was right. With only about 4" it would top out after the hit and cause the rear tires to unload.

EDIT: Do you have adjustable secondary metering plates (or drilled out metering plates)? My experience w/ Six Packs on 440s was that the center carb "wanted" a 65 or 66 jet, but the outboards needed a good bit more fuel on the main circuit than unmodified plates provided.




unmodified plates..stock 6-pack and I have 5+" of front end travel.




Like I mentioned, the blocks can be modified and the body`s t-slot holes measured to see if it would clean up the idle and lower speeds which translates to a cleaner top end w/some tweeks and fine tuning.


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: Will it pick up? [Re: Mr.Yuck] #1688652
10/22/14 02:49 PM
10/22/14 02:49 PM
Joined: Aug 2003
Posts: 43,129
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 43,129
Bend,OR USA
Try measuring the nose weight with you (get a freind to read it if needed )in the car then the total on all four wheels and finally the rear weight


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Will it pick up? [Re: Cab_Burge] #1688653
10/22/14 11:26 PM
10/22/14 11:26 PM
Joined: Jan 2003
Posts: 27,421
Balt. Md
3
383man Offline
Too Many Posts
383man  Offline
Too Many Posts
3

Joined: Jan 2003
Posts: 27,421
Balt. Md
All I can tell you is good luck and I hope to see you there. I have never run Cal Tracs myself but they do seem to work very good when dailed in. Myself I have made no changes to my car but I might uncapp it if I feel like it. Ron

Re: Will it pick up? [Re: Crizila] #1688654
10/23/14 12:43 PM
10/23/14 12:43 PM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline OP
Not enough dumb comments...yet
Mr.Yuck  Offline OP
Not enough dumb comments...yet

Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Quote:

If that fan locks up before or during the run, you will loose ET.




Are these thermal or centrifugal..

Re: Will it pick up? [Re: Mr.Yuck] #1688655
10/23/14 01:19 PM
10/23/14 01:19 PM
Joined: Jan 2005
Posts: 3,635
Oakland, MI
D
dizuster Offline
master
dizuster  Offline
master
D

Joined: Jan 2005
Posts: 3,635
Oakland, MI
Tighten the shocks up all the way, and put the caltrac bar in the lower hole.

The shocks you have won't be able to control a hard hit well enough, so you sort of have to bandaid that by putting the bar in the lower hole to let the spring absorb some energy before the front segment goes "solid".

But on the pro's at your power, you should be able to make the thing hook in spit.

Re: Will it pick up? [Re: dizuster] #1688656
10/23/14 01:37 PM
10/23/14 01:37 PM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline OP
Not enough dumb comments...yet
Mr.Yuck  Offline OP
Not enough dumb comments...yet

Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Quote:

Tighten the shocks up all the way, and put the caltrac bar in the lower hole.

The shocks you have won't be able to control a hard hit well enough, so you sort of have to bandaid that by putting the bar in the lower hole to let the spring absorb some energy before the front segment goes "solid".

But on the pro's at your power, you should be able to make the thing hook in spit.




is the "tight" 50/50 or 70/30

Re: Will it pick up? [Re: Mr.Yuck] #1688657
10/23/14 01:42 PM
10/23/14 01:42 PM
Joined: Jan 2003
Posts: 13,357
Marion, South Carolina [><]
an8sec70cuda Offline
I Live Here
an8sec70cuda  Offline
I Live Here

Joined: Jan 2003
Posts: 13,357
Marion, South Carolina [><]
50/50


CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
Re: Will it pick up? [Re: an8sec70cuda] #1688658
10/23/14 01:45 PM
10/23/14 01:45 PM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline OP
Not enough dumb comments...yet
Mr.Yuck  Offline OP
Not enough dumb comments...yet

Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Quote:

50/50




thanks, will re-set to lower hole and 50/50 and have a go at it Saturday.

Re: Will it pick up? [Re: Mr.Yuck] #1688659
10/23/14 04:15 PM
10/23/14 04:15 PM
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
B
BradH Offline
Taking time off to work on my car
BradH  Offline
Taking time off to work on my car
B

Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
IMO, you should spend the $$$ for a set of those billet secondary metering plates that allow you to adjust your outboard carb jets. You really can't tune all 6 "holes" by changing only the center carb's main jets.

I had my old Six Pack plates modified years ago to enable changing jets, but the new parts from Promax / Quick Fuel / whomever are a better way to go.

And if somebody was smart, they'd make the IFR circuits adjustable, too (if they haven't already).

Re: Will it pick up? [Re: BradH] #1688660
10/23/14 10:17 PM
10/23/14 10:17 PM
Joined: Jul 2004
Posts: 19,317
State of confusion
T
Thumperdart Offline
I Live Here
Thumperdart  Offline
I Live Here
T

Joined: Jul 2004
Posts: 19,317
State of confusion
Quote:

IMO, you should spend the $$$ for a set of those billet secondary metering plates that allow you to adjust your outboard carb jets. You really can't tune all 6 "holes" by changing only the center carb's main jets.

I had my old Six Pack plates modified years ago to enable changing jets, but the new parts from Promax / Quick Fuel / whomever are a better way to go.

And if somebody was smart, they'd make the IFR circuits adjustable, too (if they haven't already).





Yep, that`s what I suggested to Mr Yuck............send me those blocks and I can make em night and day difference............


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: Will it pick up? [Re: Thumperdart] #1688661
10/23/14 10:41 PM
10/23/14 10:41 PM
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
B
BradH Offline
Taking time off to work on my car
BradH  Offline
Taking time off to work on my car
B

Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
Pssssst, Dom: Mopar Six Pack outboard carbs use fixed-orifice metering plates, not metering blocks.

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