Previous Thread
Next Thread
Print Thread
Page 1 of 2 1 2
First runs of Indy headed SB #1082732
09/25/11 11:17 PM
09/25/11 11:17 PM
Joined: May 2004
Posts: 1,522
Ste-Sophie, Quebec, Canada
W
Wedgeman Offline OP
pro stock
Wedgeman  Offline OP
pro stock
W

Joined: May 2004
Posts: 1,522
Ste-Sophie, Quebec, Canada
Hey guys !
After lots of troubles and wrenching this summer, was finally able to do a couple of passes, best for the first night of 7.47 on a 1/8 mile track (4 runs in the evening).

Bad 1.666 60 ft

I know It can do a lot better !

With a few mods I wil do this week, post your comments on the combo and help go the right direction..

1967 barracuda 3300lbs with driver
408 sb 10.7:1 cr
Indy 360-1 heads 218 int runner 343 cfm ported
Indy intake ,
800 cfm holley #37 shooters,msd ign and coil
1 7/8 headers
1.6 rocker solid roller cam 255/263 @ .050
904 rebuilt trans low gearset 3800 stall
3.91 rear 28in drag slicks 9in wide
super stock spring with rancho shock set at 4

elect fan and water pump
shifting at 6200 rpm

any input to do better !

Dan

Last edited by Wedgeman; 09/25/11 11:18 PM.
Re: First runs of Indy headed SB [Re: Wedgeman] #1082733
09/25/11 11:39 PM
09/25/11 11:39 PM
Joined: Jan 2007
Posts: 3,695
nc
E
emarine01 Offline
master
emarine01  Offline
master
E

Joined: Jan 2007
Posts: 3,695
nc
6200 seems around 500 low to me for a head that flows 343 on 408 cubes

Re: First runs of Indy headed SB [Re: Wedgeman] #1082734
09/26/11 02:15 AM
09/26/11 02:15 AM
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
J
joedust451 Offline
super gas
joedust451  Offline
super gas
J

Joined: Feb 2005
Posts: 5,221
Branson, Mo.
Quote:

Hey guys !
After lots of troubles and wrenching this summer, was finally able to do a couple of passes, best for the first night of 7.47 on a 1/8 mile track (4 runs in the evening).

Bad 1.666 60 ft

I know It can do a lot better !

With a few mods I wil do this week, post your comments on the combo and help go the right direction..

1967 barracuda 3300lbs with driver
408 sb 10.7:1 cr
Indy 360-1 heads 218 int runner 343 cfm ported
Indy intake ,
800 cfm holley #37 shooters,msd ign and coil
1 7/8 headers
1.6 rocker solid roller cam 255/263 @ .050
904 rebuilt trans low gearset 3800 stall
3.91 rear 28in drag slicks 9in wide
super stock spring with rancho shock set at 4

elect fan and water pump
shifting at 6200 rpm

any input to do better !

Dan




With a cam like that i would think you'd need a higher flash stall, like somewhere around 4800. That 3800 is most likely your 60ft. issues, At 3300 lbs. & a combo like that you should be running 6.8-6.9s 1/8 mile, just to give you an example, there is a member on here with a 71 Swinger, its race weight is just below 3300 lbs., He is running a "junkyard" 360 magnum with EQ heads & a bone stock bottom end, 9.5.1, a smaller cam, around a 4200 stall, 4.10 gears & a 750dp & runs 7.4s.


75 Duster, 451 10.87 @ 123.58 NA 97 Z28 6sp., 12.01 @ 115 on a 100 shot 71 Swinger. 360 magnum. 12.58 @ 105 78 cutlass, 469 BBC. 12.70 @ 108 on street tires. http://www.youtube.com/watch?v=Z2kqNmMfheU
Re: First runs of Indy headed SB [Re: emarine01] #1082735
09/26/11 02:21 AM
09/26/11 02:21 AM
Joined: Aug 2006
Posts: 2,141
junction city oregon
V
viperblue72 Offline
top fuel
viperblue72  Offline
top fuel
V

Joined: Aug 2006
Posts: 2,141
junction city oregon
Combo looks good. You should be shifting at 7k rpm. Even with a bad 60ft you should be well in the 10s with everything sorted out.

Re: First runs of Indy headed SB [Re: viperblue72] #1082736
09/26/11 11:00 AM
09/26/11 11:00 AM
Joined: Nov 2003
Posts: 5,160
Texas
dannysbee Offline
master
dannysbee  Offline
master

Joined: Nov 2003
Posts: 5,160
Texas
What was you MPH in the 1/8?


Getting old just means you were smarter than some and luckier than others.
Re: First runs of Indy headed SB [Re: joedust451] #1082737
09/26/11 11:07 AM
09/26/11 11:07 AM
Joined: Jan 2003
Posts: 3,104
Wheels up, MO
N
nhramark Offline
master
nhramark  Offline
master
N

Joined: Jan 2003
Posts: 3,104
Wheels up, MO
Quote:

Quote:

Hey guys !
After lots of troubles and wrenching this summer, was finally able to do a couple of passes, best for the first night of 7.47 on a 1/8 mile track (4 runs in the evening).

Bad 1.666 60 ft

I know It can do a lot better !

With a few mods I wil do this week, post your comments on the combo and help go the right direction..

1967 barracuda 3300lbs with driver
408 sb 10.7:1 cr
Indy 360-1 heads 218 int runner 343 cfm ported
Indy intake ,
800 cfm holley #37 shooters,msd ign and coil
1 7/8 headers
1.6 rocker solid roller cam 255/263 @ .050
904 rebuilt trans low gearset 3800 stall
3.91 rear 28in drag slicks 9in wide
super stock spring with rancho shock set at 4

elect fan and water pump
shifting at 6200 rpm

any input to do better !

Dan




With a cam like that i would think you'd need a higher flash stall, like somewhere around 4800. That 3800 is most likely your 60ft. issues






[image]http://s1126.photobucket.com/user/nhramark1/library/Racing[/image] 9.100 @ 150 mph 5.780 @ 120 mph
Re: First runs of Indy headed SB [Re: nhramark] #1082738
09/26/11 11:21 AM
09/26/11 11:21 AM
Joined: Oct 2007
Posts: 3,978
Hilltown Pa
1967dartgt Offline
master
1967dartgt  Offline
master

Joined: Oct 2007
Posts: 3,978
Hilltown Pa
More gear 4.30s or 4.56s. Shift higher around 7000.


Brett Miller W9 cnc'd heads
STR Chassis fabraction
Re: First runs of Indy headed SB [Re: Wedgeman] #1082739
09/26/11 12:03 PM
09/26/11 12:03 PM
Joined: Oct 2003
Posts: 11,684
W. Kentucky
justinp61 Offline
I Live Here
justinp61  Offline
I Live Here

Joined: Oct 2003
Posts: 11,684
W. Kentucky
IMHO you don't need the low gear set with the stroker. My pump gas 408 has gone 6.57 with a 1.38 60' at 3260#. The cam is a flat solid, 260/264 @ .050. I shift it at 6400. It's backed by a 727, with a 9.5" converter that flashes 6000 and a Dana with 4.10 gears.

Re: First runs of Indy headed SB [Re: justinp61] #1082740
09/26/11 07:16 PM
09/26/11 07:16 PM
Joined: May 2004
Posts: 1,522
Ste-Sophie, Quebec, Canada
W
Wedgeman Offline OP
pro stock
Wedgeman  Offline OP
pro stock
W

Joined: May 2004
Posts: 1,522
Ste-Sophie, Quebec, Canada
4.30 with 30 in tires ? or stay with 28.....?

Re: First runs of Indy headed SB [Re: Wedgeman] #1082741
09/26/11 08:28 PM
09/26/11 08:28 PM
Joined: Jul 2003
Posts: 577
Grand Rapids, MI
1
11secondC Offline
mopar
11secondC  Offline
mopar
1

Joined: Jul 2003
Posts: 577
Grand Rapids, MI
What was the mph? ET is in the chassis...but if the MPH is low...something's up with engine...

Re: First runs of Indy headed SB [Re: Wedgeman] #1082742
09/26/11 08:39 PM
09/26/11 08:39 PM
Joined: Oct 2003
Posts: 11,684
W. Kentucky
justinp61 Offline
I Live Here
justinp61  Offline
I Live Here

Joined: Oct 2003
Posts: 11,684
W. Kentucky
Quote:

4.30 with 30 in tires ? or stay with 28.....?




I'd stay with the 3.91s and a 28" tire. Most strokers don't need much gear. If it were mine I wouldn't do anything gear and tire wise until the engine and chassis was tuned. That car should run in the mid 6s in the 1/8.

Re: First runs of Indy headed SB [Re: Wedgeman] #1082743
09/27/11 12:31 AM
09/27/11 12:31 AM
Joined: Feb 2011
Posts: 1,454
Glendora Ca.
J
Just-a-dart Offline
pro stock
Just-a-dart  Offline
pro stock
J

Joined: Feb 2011
Posts: 1,454
Glendora Ca.
My 408 combo was close to that(you have 5* dur. more cam and a little more porting) was running 6.60s at 3300lbs with low 1.40s 60'

I can tell you mine liked 6700rpm shift points.

I ran a 9.5" converter 4600 stall, and 4.10 or 4.30 gears.

I would suggest that you try 6600 shifts, then go up 200 at a time tell it does not improve my

Also with the lowgear watchout for bumping the rev limiter in 1st gear {its easy to do)



"Just a Bracket car dressed up like a streetcar"
Re: First runs of Indy headed SB [Re: justinp61] #1082744
09/27/11 12:51 AM
09/27/11 12:51 AM
Joined: Oct 2007
Posts: 3,978
Hilltown Pa
1967dartgt Offline
master
1967dartgt  Offline
master

Joined: Oct 2007
Posts: 3,978
Hilltown Pa
Quote:

Quote:

4.30 with 30 in tires ? or stay with 28.....?




I'd stay with the 3.91s and a 28" tire. Most strokers don't need much gear. If it were mine I wouldn't do anything gear and tire wise until the engine and chassis was tuned. That car should run in the mid 6s in the 1/8.




My stroker(421) went 9.90s with 4.56s and 295/65/15(29in)hoosier drag radials. Tried 4.30s and it fell off.


Brett Miller W9 cnc'd heads
STR Chassis fabraction
Re: First runs of Indy headed SB [Re: 1967dartgt] #1082745
09/27/11 01:38 AM
09/27/11 01:38 AM
Joined: Nov 2004
Posts: 1,745
Maryland
340_Dart Offline
top fuel
340_Dart  Offline
top fuel

Joined: Nov 2004
Posts: 1,745
Maryland
What's the mph for your times?
Timing?
Fuel jetting? what fuel?
Cam lift?

The combination looks good, probably just needs some tuning... My 408 is as follows:

Nothing trick in the bottom end.
K1 forged crank, K1 rods, Diamond flat top pistons. Basic 408 bottom end. Compression calculated out to 10.3:1

Indy 360-2 CNC heads that have been massaged by Brett Miller (W5Dart66) and he also converted my intake to dominator flange
I believe they flow in the mid 330's at .700 lift

Solid roller camshaft by predator cams, 264/268@ .050, .698 gross lift
Engine runs best between 36-38 degrees of timing
1050 Dominator
Hedman 2" husler headers
727 with a transbrake
5400 ultimate converter
4.56s in a dana with 29.5x10.5 slicks

This is in a 3000# race weight 68 valiant with ladder bar rear suspension.

Went a best of 10.04 @ 131.xx at norwalk 2 weeks ago. Usually runs in the 10 teen or 20 range, depending on the air.
1/8 mile times in the 6.40s and 60' in the mid-high 1.30s depending on track

6844362-DSC_9912.jpg (93 downloads)
Re: First runs of Indy headed SB [Re: Wedgeman] #1082746
09/27/11 01:52 AM
09/27/11 01:52 AM
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
J
joedust451 Offline
super gas
joedust451  Offline
super gas
J

Joined: Feb 2005
Posts: 5,221
Branson, Mo.
Quote:

4.30 with 30 in tires ? or stay with 28.....?




Keep what gears/tires you have now, I'd look into a higher stall & get to tuning it.


75 Duster, 451 10.87 @ 123.58 NA 97 Z28 6sp., 12.01 @ 115 on a 100 shot 71 Swinger. 360 magnum. 12.58 @ 105 78 cutlass, 469 BBC. 12.70 @ 108 on street tires. http://www.youtube.com/watch?v=Z2kqNmMfheU
Re: First runs of Indy headed SB [Re: 1967dartgt] #1082747
09/27/11 07:02 AM
09/27/11 07:02 AM
Joined: Oct 2003
Posts: 11,684
W. Kentucky
justinp61 Offline
I Live Here
justinp61  Offline
I Live Here

Joined: Oct 2003
Posts: 11,684
W. Kentucky
Quote:

Quote:

Quote:

4.30 with 30 in tires ? or stay with 28.....?




I'd stay with the 3.91s and a 28" tire. Most strokers don't need much gear. If it were mine I wouldn't do anything gear and tire wise until the engine and chassis was tuned. That car should run in the mid 6s in the 1/8.




My stroker(421) went 9.90s with 4.56s and 295/65/15(29in)hoosier drag radials. Tried 4.30s and it fell off.




How much compression and cam?

Re: First runs of Indy headed SB [Re: justinp61] #1082748
09/27/11 09:04 AM
09/27/11 09:04 AM
Joined: Oct 2007
Posts: 3,978
Hilltown Pa
1967dartgt Offline
master
1967dartgt  Offline
master

Joined: Oct 2007
Posts: 3,978
Hilltown Pa
12 to 1 compression custom ground comp roller for nitrous 260/272 if I remember correctly. Had three different cams in that motor. And those passes were on motor with 9 1/2 dynamic conv tight for spray 3900-4000 stall.

Well I looked and memory was a little off, 272/284 ,110 lobe separation,and 660/661 gross lift.

Last edited by 1967DartGT; 09/27/11 07:31 PM.

Brett Miller W9 cnc'd heads
STR Chassis fabraction
Re: First runs of Indy headed SB [Re: 1967dartgt] #1082749
09/27/11 06:29 PM
09/27/11 06:29 PM
Joined: May 2004
Posts: 1,522
Ste-Sophie, Quebec, Canada
W
Wedgeman Offline OP
pro stock
Wedgeman  Offline OP
pro stock
W

Joined: May 2004
Posts: 1,522
Ste-Sophie, Quebec, Canada
Great infos..

Keep in mind I have a low gearset....

So may be a 4.10 with 30in tires ?

Re: First runs of Indy headed SB [Re: Wedgeman] #1082750
09/27/11 07:04 PM
09/27/11 07:04 PM
Joined: Sep 2011
Posts: 369
California, USA!!!
W
WheelsUp73 Offline
enthusiast
WheelsUp73  Offline
enthusiast
W

Joined: Sep 2011
Posts: 369
California, USA!!!
Here is my dart with eddy heads and a solid cam. I also run a 904 and a low 1st gear and 4.56 rearend gear. Has been 10.06 @ 131 pulling a huge wheelie at 3130 lbs. I shift at 6800 and the car traps at 7000 rpm on a 29.5 10.5 tire.

http://youtu.be/zd3TadLVg9E

http://youtu.be/N6v55H0vriw

6845180-Lisasamoa5.jpg (82 downloads)
Re: First runs of Indy headed SB [Re: WheelsUp73] #1082751
09/27/11 07:08 PM
09/27/11 07:08 PM
Joined: Oct 2007
Posts: 3,978
Hilltown Pa
1967dartgt Offline
master
1967dartgt  Offline
master

Joined: Oct 2007
Posts: 3,978
Hilltown Pa
Yea mine also had low gear set in a 904.


Brett Miller W9 cnc'd heads
STR Chassis fabraction
Page 1 of 2 1 2






Powered by UBB.threads™ PHP Forum Software 7.7.1