Macs Products

Drag Car Pipes - 2012

These pipes were & are being developed for Drag Racing
and other high torque applications

Drag Car Pipes	Length	Weight	Price	Stock #
2.5cc (.10-.15)(9°-.3"-16°)(1)std. Aero pipe (this pipe has a 9/16" head pipe and 11/8"d) (all the 3.5cc pipes have a 5/8"hp and 11/4d)	10"	1.2oz	40.95	1110
3.5cc (.20-.36)(9°-.3"-16°)(1)std. Aero pipe	11"	1.2 oz	41.95	1120
3.5cc (.21-.36) (14°-1"-18°)(1) Drag Car racing pipe(also see #1326)	10 1/2"	1.4 oz	45.95	1126 (1326)(4)
3.5cc (.21-.36) (12°-.3"-18°)(1) Drag Car - Draw Pipe(2)	10 1/2"	1.4 oz	45.95	1127
3.5cc (.21-.36) (12°-.3"-16°)(1) Drag Car - Stub end(3) pipe	10 1/2"	1.4 oz	43.95	1128

(1.) These dimensions are as follows first front cone angle
second high point length and third back cone angle.
(2.) The 1126 (1326) has a sharp front cone (14°) and a long center (1"),
the 1127 & 1128 have a longer front cone (12') and a short center (.3")
so the front cone + the center are about the same on all 3 pipes.
(3.) The 1126 (1326) and the 1127 have standard stingers (1"),
the 1128 has a short stinger (.3"), to make the back cone (16° not 18°)
and the stinger section about the same as the 1126 (1326) and the 1127 (3.5").
(4.) The #1126 and the #1326 are the same pipe, except the lead-in tube
is a little longer (.75"-1.00") on the #1326 (the old Prather Pipe).
(The inch and angle measurements are only approximations
and not exact measurements)
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Drag Car Racing Headers

Image #1 - 10' Straight back header -/- Image #2 - 180' & 5' up cars left side

Image #3 - 180' Wrap to 75' header -/- Image #4 - 180' Wrap to 75' on a car

Header Type	Bend radius	Price	Stock #
.730 id cap 10' up-for back exhaust sys. (1)(image #1)	-	28.95	1451
.730 id cap 180' + 5' up-for front exhaust sys.(2) ( 180' bend to the cars left side - image #2 )	.625r	43.95	1455
.730 id cap Wrap to 75' for left exhaust sys.(4)(image 3&4)	.625r	54.95	1457

We are currently producing three custom headers for Racing Drag Cars
1. A straight back 10° up for cars with forward facing motors.
2. A candy cane header (180°) for reverse mounted motors (forward exhaust).
3.(on-hold)A wrap-to-cntr header(180° with a reverse 90°)for side mounted motors.
--(this header is on hold because the distance from the center of the motor --
-- to after the reverse 90° = aprox. 5 1/2" - too long for tuning!)--
4. 180' Wrap to 75' back to make the header as short as possible.
--(this header Uses a 1/D (.625r) bend of 180' then a 75' reverse bend at .850r --
-- and the distance from motor center to after the 75' bend = aprox. 4 1/4" )--
They are all silicone-sleeve mounted headers with .730, .750, & .775 cap i.d.
(only the .730id are listed, the other cap sizes are special order)
If any of you can think of something better, I'd love to hear from you.
! These Custom Drag Car Headers do not include Silicone Tubing

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Macs Products
7935A Carlton Rd.
Sacramento, CA 95826