8========0 Chris'smax Motor Build (going Big) 0========8
Originally Posted by blasian
STFU you cheetos hating muhfugger 
BTW, I wore that shirt you gave me to our little Hooters meet. You should have saw Chris, he went into his angry ways and smeared ranch all over his face
ibhomojoke
BTW, I wore that shirt you gave me to our little Hooters meet. You should have saw Chris, he went into his angry ways and smeared ranch all over his face
ibhomojoke
Originally Posted by str8dum1
just for lil reference a dual 3" exhaust barely flows more than a 4" single (would be the same as a 4.1" exhaust)
you would need 3x 2.5" pipes to flow the same as a a dual 3" or a single 4"
pi r^2
not 6" area like mentioned before.
regardless of the math, good luck with the build!!
you would need 3x 2.5" pipes to flow the same as a a dual 3" or a single 4"
pi r^2
not 6" area like mentioned before.
regardless of the math, good luck with the build!!
True, but imo exhaust velocity is the main concern. As long as the exhaust velocity is substantial then i should be fine.
BTW i have wastegate dumps. So i am not sure how much more exhaust area that provides (not sure on the pipe diameter, 1.5"? ).
Pipe Diameter Area
2.5" 4.9sqin
3" 7.0sqin
4" 12.5sqin
6" 28sqin
Just to give you an idea. Having two 3" pipes will not flow as much as one 6" pipe. Really about half as much.
2.5" 4.9sqin
3" 7.0sqin
4" 12.5sqin
6" 28sqin
Just to give you an idea. Having two 3" pipes will not flow as much as one 6" pipe. Really about half as much.
Registered User
iTrader: (1)
Joined: Sep 2007
Posts: 5,256
Likes: 0
From: Texas, Arizona,Cayman Island
Originally Posted by h2kSPiG
Pipe Diameter Area
2.5" 4.9sqin
3" 7.0sqin
4" 12.5sqin
6" 28sqin
Just to give you an idea. Having two 3" pipes will not flow as much as one 6" pipe. Really about half as much.
2.5" 4.9sqin
3" 7.0sqin
4" 12.5sqin
6" 28sqin
Just to give you an idea. Having two 3" pipes will not flow as much as one 6" pipe. Really about half as much.
Originally Posted by XKR
Let me see if i get this correct... Lets use the VQ as the example.... You are saying that one 6" pipe "Y" to exhaust from a left and right header will flow better than two 3" real dual pipes to exhaust
mathematically he is right. There is more area in a 6" diameter circle than 2 3" diameter circles.
**** it i am just going to run open downpipes lol
Originally Posted by chris'smax
mathematically he is right. There is more area in a 6" diameter circle than 2 3" diameter circles.
**** it i am just going to run open downpipes lol
**** it i am just going to run open downpipes lol
Registered User
iTrader: (1)
Joined: Sep 2007
Posts: 5,256
Likes: 0
From: Texas, Arizona,Cayman Island
Originally Posted by chris'smax
mathematically he is right. There is more area in a 6" diameter circle than 2 3" diameter circles.
**** it i am just going to run open downpipes lol
**** it i am just going to run open downpipes lol
Originally Posted by chris'smax
**** it i am just going to run open downpipes lol
Last edited by XKR; Jun 23, 2008 at 09:21 AM.
Originally Posted by chris'smax
mathematically he is right. There is more area in a 6" diameter circle than 2 3" diameter circles.
**** it i am just going to run open downpipes lol
**** it i am just going to run open downpipes lol
That's where this stuff gets interesting
^^^^Great minds think alike adam!!!!!
Originally Posted by chris'smax
True, but imo exhaust velocity is the main concern. As long as the exhaust velocity is substantial then i should be fine.
BTW i have wastegate dumps. So i am not sure how much more exhaust area that provides (not sure on the pipe diameter, 1.5"? ).
BTW i have wastegate dumps. So i am not sure how much more exhaust area that provides (not sure on the pipe diameter, 1.5"? ).
Chris, JT, you may want to check out this post:
https://my350z.com/forum/showpost.ph...05&postcount=8
https://my350z.com/forum/showpost.ph...05&postcount=8
Originally Posted by rcdash
Chris, JT, you may want to check out this post:
https://my350z.com/forum/showpost.ph...05&postcount=8
https://my350z.com/forum/showpost.ph...05&postcount=8
having seen chris' Spyhunter like "show", the issue was definitely well beyond what thicker oil would solve. But yes, in general that can be very true, and something all higher revving, and/or forced induction users need to take into account. Again, the builder of the engine knows the tolerances he set things too, so ask their recommendations when deciding on the oil/viscosity to use
Last edited by Z1 Performance; Jun 25, 2008 at 08:41 AM.
Originally Posted by rcdash
Chris, JT, you may want to check out this post:
https://my350z.com/forum/showpost.ph...05&postcount=8
https://my350z.com/forum/showpost.ph...05&postcount=8
Thanks for the link Raj!
I spoke w/ Tim at SFR about this already though, and it seems what i was experiencing was beyond this lol. Also i was running 10w 40 so according to him it shouldn't have been that bad. Oh well they are already being sent back to Turbonetics so i shoul hear something in the next week or so.
