Looking for a little re-assurance/info on manifold design (non-honda/non 4cyl)
Basically this is what I am building.
I am going to build a manifold for a Jeep 4.0L Inline 6. My idea, once i get hold of some flanges, is to run 3 cylinders into one collector and 3 into another collector, then have the two merge near the turbo flange. This basically creates a 6-2-1 design. I don't terribly care too much about equal lengths and making the perfect manifold, I do however want to shy away from half assing the job. So here is the deal. Firing Order details http://www.geocities.com/cantwait_fo...ring_order.jpg Basically I am wondering how I should order the cylinders into the collectors. Should I alternate? Kinda like this Cylinder 1 to collector 1 Cylinder 5 to collector 2 Cylinder 3 to collector 1 Cylinder 6 to collector 2 Cylinder 2 to collector 1 Cylinder 4 to collector 2 Is this the way I should run em to evenly distribute the firing into each of the two paths, or should I try something different? |
Re: Looking for a little re-assurance/info on manifold design (non-honda/non 4cyl)
if u can make a 6-1 collector ur a master :-X
then u would just have to route the pipes in 1 place or just go simple and make a log u cant go wrong with a log cant u modify the original header? |
Re: Looking for a little re-assurance/info on manifold design (non-honda/non 4cy
i just stared at that for a little while and now my brain hurts.
Just keep it simple and make a log. Or a twin turbo setup might be easier too |
Re: Looking for a little re-assurance/info on manifold design (non-honda/non 4cy
Originally Posted by Ravage70
if u can make a 6-1 collector ur a master :-X
then u would just have to route the pipes in 1 place or just go simple and make a log u cant go wrong with a log cant u modify the original header?
Originally Posted by gurusan
i just stared at that for a little while and now my brain hurts.
Just keep it simple and make a log. Or a twin turbo setup might be easier too and no you cant use a log. |
Re: Looking for a little re-assurance/info on manifold design (non-honda/non 4cy
I think you normally don't skip cylinders.
Cylinder 1 to collector 1 Cylinder 5 to collector 1 Cylinder 3 to collector 2 Cylinder 6 to collector 2 Cylinder 2 to collector 1 Cylinder 4 to collector 1 Like on hondas when the firing order is 1,3,4,2...you usually have 1 and 3 paired, and 4 and 2 paired. |
Re: Looking for a little re-assurance/info on manifold design (non-honda/non 4cy
Originally Posted by gurusan
I think you normally don't skip cylinders.
Cylinder 1 to collector 1 Cylinder 5 to collector 1 Cylinder 3 to collector 2 Cylinder 6 to collector 2 Cylinder 2 to collector 1 Cylinder 4 to collector 1 Like on hondas when the firing order is 1,3,4,2...you usually have 1 and 3 paired, and 4 and 2 paired. and if i was him i will make it like originally posted... to keep a pressure balance within the manifold and avoid reversion since turbo manifold usually see 4x the pressure u are compressing into the intake |
Re: Looking for a little re-assurance/info on manifold design (non-honda/non 4cy
yeah that was kind of my concensus on it too...evenly distribute the pulses.
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Re: Looking for a little re-assurance/info on manifold design (non-honda/non 4cy
Originally Posted by gurusan
I think you normally don't skip cylinders.
Cylinder 1 to collector 1 Cylinder 5 to collector 1 Cylinder 3 to collector 2 Cylinder 6 to collector 2 Cylinder 2 to collector 1 Cylinder 4 to collector 1 Like on hondas when the firing order is 1,3,4,2...you usually have 1 and 3 paired, and 4 and 2 paired. |
Re: Looking for a little re-assurance/info on manifold design (non-honda/non 4cy
Originally Posted by shoeboxbeater
this would be 4 cilinders to colector 1 and 2 to colector 2
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Re: Looking for a little re-assurance/info on manifold design (non-honda/non 4cy
Originally Posted by FooK
Is this the way I should run em to evenly distribute the firing into each of the two paths, or should I try something different? |
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