[Glenn Sedig]

Originally Posted by Glenn Sedig View Post
IA II block
473 cu
4.310 bore
4.050 stroke
6.800 alum rods
1.9 rocker ratio
1000 lb open spring pressure
All Tiger heads Port work by BES Racing 450 ish cfms 55cc chambers
7/16 push rods
Wenzler 2 X 4 intake manifold Port work by Vintage Mechanical Works per BES specs.
(2) 1150 Dominator carbs 102 main jets Q-16 fuel
Comp cams .995 lift 282 intake 300 exhaust @.050 4 - 7 swap
Headers built by Vintage Mechanical Works Step 2 1/4 dia to 2 3/8 dia

14.5 compression
1075.5 hp @7900 rpm
763.0 ft/lb trq @ 7100 rpm

With this combination (473 cubic inches, 3070 lbs) we qualified with a 8.491 et at 158.09 mph at Tom's Heads up race at Norwalk in 2015. Still not as fast as Picket's wagon. So was wondering if you guys have an opinion on the improvements I can gain with the following changes:

Dry sump
New custom built headers
Sheet metal intake
Seal hood scoop to the carburetor (Ram Air)

Thanks for the help
Glenn Sedig

Originally Posted by johnta1

Thanks for the corrections, Glenn.
That's what I had guessed but wanted to make sure.

You're running gasoline I think?

Possibly try alcohol if so?

John,

I tried alcohol and got no improvement.

[slowbird]

Originally Posted by Glenn Sedig

Originally Posted by Glenn Sedig View Post
IA II block
473 cu
4.310 bore
4.050 stroke
6.800 alum rods
1.9 rocker ratio
1000 lb open spring pressure
All Tiger heads Port work by BES Racing 450 ish cfms 55cc chambers
7/16 push rods
Wenzler 2 X 4 intake manifold Port work by Vintage Mechanical Works per BES specs.
(2) 1150 Dominator carbs 102 main jets Q-16 fuel
Comp cams .995 lift 282 intake 300 exhaust @.050 4 - 7 swap
Headers built by Vintage Mechanical Works Step 2 1/4 dia to 2 3/8 dia

14.5 compression
1075.5 hp @7900 rpm
763.0 ft/lb trq @ 7100 rpm

With this combination (473 cubic inches, 3070 lbs) we qualified with a 8.491 et at 158.09 mph at Tom's Heads up race at Norwalk in 2015. Still not as fast as Picket's wagon. So was wondering if you guys have an opinion on the improvements I can gain with the following changes:

Dry sump
New custom built headers
Sheet metal intake
Seal hood scoop to the carburetor (Ram Air)

Thanks for the help
Glenn Sedig



John,

I tried alcohol and got no improvement.

Going to be very hard to over come the Liberty trans Pickett's run.

[Glenn Sedig]

IA II block
473 cu
4.310 bore
4.050 stroke
6.800 alum rods
1.9 rocker ratio
1000 lb open spring pressure
All Tiger heads Port work by BES Racing 450 ish cfms 55cc chambers
7/16 push rods
Wenzler 2 X 4 intake manifold Port work by Vintage Mechanical Works per BES specs.
(2) 1150 Dominator carbs 102 main jets Q-16 fuel
Comp cams .995 lift 282 intake 300 exhaust @.050 4 - 7 swap
Headers built by Vintage Mechanical Works Step 2 1/4 dia to 2 3/8 dia

14.5 compression
1075.5 hp @7900 rpm
763.0 ft/lb trq @ 7100 rpm

With this combination (473 cubic inches, 3070 lbs) we qualified with a 8.491 et at 158.09 mph at Tom's Heads up race at Norwalk in 2015. Still not as fast as Picket's wagon. So was wondering if you guys have an opinion on the improvements I can gain with the following changes:

Dry sump
New custom built headers
Sheet metal intake
Seal hood scoop to the carburetor (Ram Air)

Thanks for the help
Glenn Sedig

Originally Posted by slowbird

Going to be very hard to over come the Liberty trans Pickett's run.

Slowbird,

I am running a Rossler low drag competition trans. It may not be as fast as a Liberty, but I hope I can overcome the difference with other changes.

[mike leech]

Originally Posted by Glenn Sedig

Originally Posted by Glenn Sedig View Post
IA II block
473 cu
4.310 bore
4.050 stroke
6.800 alum rods
1.9 rocker ratio
1000 lb open spring pressure
All Tiger heads Port work by BES Racing 450 ish cfms 55cc chambers
7/16 push rods
Wenzler 2 X 4 intake manifold Port work by Vintage Mechanical Works per BES specs.
(2) 1150 Dominator carbs 102 main jets Q-16 fuel
Comp cams .995 lift 282 intake 300 exhaust @.050 4 - 7 swap
Headers built by Vintage Mechanical Works Step 2 1/4 dia to 2 3/8 dia

14.5 compression
1075.5 hp @7900 rpm
763.0 ft/lb trq @ 7100 rpm

With this combination (473 cubic inches, 3070 lbs) we qualified with a 8.491 et at 158.09 mph at Tom's Heads up race at Norwalk in 2015. Still not as fast as Picket's wagon. So was wondering if you guys have an opinion on the improvements I can gain with the following changes:

Dry sump
New custom built headers
Sheet metal intake
Seal hood scoop to the carburetor (Ram Air)

Thanks for the help
Glenn Sedig



John,

I tried alcohol and got no improvement.

what headers are there now?

[Glenn Sedig]

IA II block
473 cu
4.310 bore
4.050 stroke
6.800 alum rods
1.9 rocker ratio
1000 lb open spring pressure
All Tiger heads Port work by BES Racing 450 ish cfms 55cc chambers
7/16 push rods
Wenzler 2 X 4 intake manifold Port work by Vintage Mechanical Works per BES specs.
(2) 1150 Dominator carbs 102 main jets Q-16 fuel
Comp cams .995 lift 282 intake 300 exhaust @.050 4 - 7 swap
Headers built by Vintage Mechanical Works Step 2 1/4 dia to 2 3/8 dia

14.5 compression
1075.5 hp @7900 rpm
763.0 ft/lb trq @ 7100 rpm

With this combination (473 cubic inches, 3070 lbs) we qualified with a 8.491 et at 158.09 mph at Tom's Heads up race at Norwalk in 2015. Still not as fast as Picket's wagon. So was wondering if you guys have an opinion on the improvements I can gain with the following changes:

Dry sump
New custom built headers
Sheet metal intake
Seal hood scoop to the carburetor (Ram Air)

Thanks for the help
Glenn Sedig

Originally Posted by mike leech

what headers are there now?

Headers are Step 2 1/4 dia tube to 2 3/8 dia tube

[slowbird]

Originally Posted by Glenn Sedig

Originally Posted by Glenn Sedig View Post
IA II block
473 cu
4.310 bore
4.050 stroke
6.800 alum rods
1.9 rocker ratio
1000 lb open spring pressure
All Tiger heads Port work by BES Racing 450 ish cfms 55cc chambers
7/16 push rods
Wenzler 2 X 4 intake manifold Port work by Vintage Mechanical Works per BES specs.
(2) 1150 Dominator carbs 102 main jets Q-16 fuel
Comp cams .995 lift 282 intake 300 exhaust @.050 4 - 7 swap
Headers built by Vintage Mechanical Works Step 2 1/4 dia to 2 3/8 dia

14.5 compression
1075.5 hp @7900 rpm
763.0 ft/lb trq @ 7100 rpm

With this combination (473 cubic inches, 3070 lbs) we qualified with a 8.491 et at 158.09 mph at Tom's Heads up race at Norwalk in 2015. Still not as fast as Picket's wagon. So was wondering if you guys have an opinion on the improvements I can gain with the following changes:

Dry sump
New custom built headers
Sheet metal intake
Seal hood scoop to the carburetor (Ram Air)

Thanks for the help
Glenn Sedig

Glenn can you raise your compression (milling the heads possible)? Getting it up to 16:1 will help. Also looking more at your results i think a new intake will help. We arent to far apart on cams but im 38ci bigger and my 511ci peaks 200-300rpm higher.

[Glenn Sedig]

IA II block
473 cu
4.310 bore
4.050 stroke
6.800 alum rods
1.9 rocker ratio
1000 lb open spring pressure
All Tiger heads Port work by BES Racing 450 ish cfms 55cc chambers
7/16 push rods
Wenzler 2 X 4 intake manifold Port work by Vintage Mechanical Works per BES specs.
(2) 1150 Dominator carbs 102 main jets Q-16 fuel
Comp cams .995 lift 282 intake 300 exhaust @.050 4 - 7 swap
Headers built by Vintage Mechanical Works Step 2 1/4 dia to 2 3/8 dia

15.4 compression
1075.5 hp @7900 rpm
763.0 ft/lb trq @ 7100 rpm

With this combination (473 cubic inches, 3070 lbs) we qualified with a 8.491 et at 158.09 mph at Tom's Heads up race at Norwalk in 2015. Still not as fast as Picket's wagon. So was wondering if you guys have an opinion on the improvements I can gain with the following changes:

Dry sump
New custom built headers
Sheet metal intake
Seal hood scoop to the carburetor (Ram Air)

Originally Posted by slowbird

Glenn can you raise your compression (milling the heads possible)? Getting it up to 16:1 will help. Also looking more at your results i think a new intake will help. We arent to far apart on cams but im 38ci bigger and my 511ci peaks 200-300rpm higher.

Slowbird

Sorry, I rechecked my paper work and the compression is 15.4. It will be hard to get much more. The piston domes are from molds of the chamber.
My intake runners may be a bit to long so maybe a sheet metal intake will help.