Collector Length

Purple Dragon · 19-03-2010, 01:40 PM

G'day Guys,
I have a 355 Holden stroker and need to put 4" collectors on my extractors. Can anyone tell me how long I should make these?

ima400 · 19-03-2010, 06:49 PM

why you putting a 4 inch collector ?

393Sleeper · 19-03-2010, 07:33 PM

i would be thinking a 4 inch collector is a tad massive for a 355

Dynoryder · 19-03-2010, 08:52 PM

collector size is related to system size and or flow

and should not messed with if max power is desierd. tuned lenght extractors is all you need provideing you know the flow and port size of your head or know if it is a stock head

Purple Dragon · 20-03-2010, 07:37 AM

Exactly what is tuned length? I was told by my engine dyno guys to go 2' secondaries into 4' collectors. They have done this on a few 355's they have run and that is where they have had the best figures.

393Sleeper · 20-03-2010, 09:14 AM

Quote:

Originally Posted by Purple Dragon

Exactly what is tuned length? I was told by my engine dyno guys to go 2' secondaries into 4' collectors. They have done this on a few 355's they have run and that is where they have had the best figures.

i am sceptical of that and besides who drives around everywhere at WOT
even my mates supercharged 355 was only runninng 3"

Purple Dragon · 20-03-2010, 12:26 PM

Can anyone suggest a diameter and length of collector?
Thanks

19-03-2010, 01:40 PM	#1 (permalink)
Purple Dragon Newby Join Date: Jan 2010 Location: Queensland Ride: LH Torana View My Photo Gallery Posts: 20	Collector Length G'day Guys, I have a 355 Holden stroker and need to put 4" collectors on my extractors. Can anyone tell me how long I should make these?

19-03-2010, 06:49 PM	#2 (permalink)
ima400 Premium Member Join Date: Jan 2008 Location: penrith Ride: LC torana View My Photo Gallery Posts: 1,191	why you putting a 4 inch collector ? __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. 8.81 @ 154 on radials with more to come 8.77 @ 155 & still more to come all throttle no bottle / all steel & glass To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

19-03-2010, 07:33 PM	#3 (permalink)
393Sleeper Clutch Popper Join Date: Jan 2010 Location: North West Ride: XY Fairmont View My Photo Gallery Desert Battle Champion! Combat Heaven Champion! Pacman Untamed Champion! Far West Champion! Super Mario Flash HV Champion! Space Fighter:Rebellion Champion! Avenger Champion! Base Defender Champion! Drakojan skies Champion! Posts: 92	i would be thinking a 4 inch collector is a tad massive for a 355 __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. There is no replacement for displacement If you have it under control you dont have enough Power

19-03-2010, 08:52 PM	#4 (permalink)
Dynoryder Banned because i am a retard Join Date: Oct 2009 Location: A.C.T. Ride: vr commy Posts: 1,002	collector size is related to system size and or flow and should not messed with if max power is desierd. tuned lenght extractors is all you need provideing you know the flow and port size of your head or know if it is a stock head Last edited by Dynoryder; 19-03-2010 at 08:53 PM.

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20-03-2010, 07:37 AM	#5 (permalink)
Purple Dragon Newby Join Date: Jan 2010 Location: Queensland Ride: LH Torana View My Photo Gallery Posts: 20	Exactly what is tuned length? I was told by my engine dyno guys to go 2' secondaries into 4' collectors. They have done this on a few 355's they have run and that is where they have had the best figures.

20-03-2010, 12:26 PM	#7 (permalink)
Purple Dragon Newby Join Date: Jan 2010 Location: Queensland Ride: LH Torana View My Photo Gallery Posts: 20	Can anyone suggest a diameter and length of collector? Thanks