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header pipe size #568617 01/01/10 08:55 AM 01/01/10 08:55 AM
Joined: Jan 2009 Posts: 1,044 Victoria, Australia Ian OP super stock
Ian OP super stock Joined: Jan 2009 Posts: 1,044 Victoria, Australia	hi i have ,245 cc intake runner indy 360-1 cnc flow343 @ 700 intake 225 ex @700 ,indy intake,950 cfm , 5000 stall t d 1.6 rollers. 410 cube mopar sb 3550 lbs max rpm 7500 ,12.8 comp 270/277@050 720/670 lift. i have 4 into 1 1 3/4 pipes i was thinking 1 7/8 stepping to 2 inch or straight 1 7/8 and some times 150 shot of gas what do you boys think. 1.37 60 ft [email]6.0@113[/email] [email]9.57@141[/email] 408 glide 3550lbs new video http://www.youtube.com/watch?feature=player_embedded&v=Xvq3ZObywQE

Re: header pipe size [Re: Ian] #568618 01/01/10 10:24 AM 01/01/10 10:24 AM
Joined: Jan 2003 Posts: 16,934 NC 440Jim I Live Here
440Jim I Live Here Joined: Jan 2003 Posts: 16,934 NC	I like the stepped pipe idea. But all 1-7/8 would be fine, IMO. If the car was lighter (2900) and had more CR, I would even consider 2" 1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1

Re: header pipe size [Re: 440Jim] #568619 01/01/10 12:59 PM 01/01/10 12:59 PM
Joined: Jan 2009 Posts: 1,044 Victoria, Australia Ian OP super stock
Ian OP super stock Joined: Jan 2009 Posts: 1,044 Victoria, Australia	thanks jim 1.37 60 ft [email]6.0@113[/email] [email]9.57@141[/email] 408 glide 3550lbs new video http://www.youtube.com/watch?feature=player_embedded&v=Xvq3ZObywQE

Re: header pipe size [Re: Ian] #568620 01/01/10 01:28 PM 01/01/10 01:28 PM
Joined: Nov 2008 Posts: 660 San Diego formula S mopar
formula S mopar Joined: Nov 2008 Posts: 660 San Diego	try this http://www.wallaceracing.com/header_length.php

Re: header pipe size [Re: formula S] #568621 01/02/10 11:00 AM 01/02/10 11:00 AM
Joined: Jan 2009 Posts: 1,044 Victoria, Australia Ian OP super stock
Ian OP super stock Joined: Jan 2009 Posts: 1,044 Victoria, Australia	thanks wallace aid 2 inch i think i will run 17/8 stepped to 2 inch into my merge collectors 5705375-0000.jpg (85 downloads) Last edited by Ian; 01/02/10 11:20 AM.

Re: header pipe size [Re: Ian] #568622 01/02/10 04:46 PM 01/02/10 04:46 PM
Joined: Jan 2003 Posts: 6,151 Melbourne , Australia LA360 master
LA360 master Joined: Jan 2003 Posts: 6,151 Melbourne , Australia	http://www.maxracesoftware.com/ Ian, do yourself a favour and pick up a copy of Larry Meaux's Pipemax software. It's excellent! AL.... Alan Jones

Re: header pipe size [Re: LA360] #568623 01/02/10 04:58 PM 01/02/10 04:58 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: http://www.maxracesoftware.com/ Ian, do yourself a favour and pick up a copy of Larry Meaux's Pipemax software. It's excellent! AL.... I got one years ago and alot of dyno test to see how close it really worked...... I used it in the exhaust lab for building headers then would test them on the dyno... then I would make a set that would deviate from the specs and it would show either a lesser HP or torque

Re: header pipe size [Re: MR_P_BODY] #568624 01/21/10 11:19 AM 01/21/10 11:19 AM
Joined: Jan 2009 Posts: 1,044 Victoria, Australia Ian OP super stock
Ian OP super stock Joined: Jan 2009 Posts: 1,044 Victoria, Australia	talking to a mate that does mandrel bending he has no dies for 1 7/8 but has 2 inch or 1 3/4 will i get away with 2 inch or not 1.37 60 ft [email]6.0@113[/email] [email]9.57@141[/email] 408 glide 3550lbs new video http://www.youtube.com/watch?feature=player_embedded&v=Xvq3ZObywQE

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