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Polished y-pipe with teflon coating

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Old 02-13-2008, 07:34 PM
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Default Re: Polished y-pipe with teflon coating

Originally Posted by NeedsWings
there is no liquid going thru these tubes, for the intake manifold runners yes i agree but this piece is way before fuel gets sprayed
Unless your IC Core is leaking...Or you are using a meth/water injector..

But at this point your intake air is Kompressed. I think it's a good start if you plan to port and polish the other components...

Will you offer a core exchange?
 
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Old 02-13-2008, 07:59 PM
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Default Re: Polished y-pipe with teflon coating

Originally Posted by Maxwell
air acts very similar to liquids it's velocity is measured in renolds numbers just as with liquids, it's just not as dense. either way it seems a bit of an over kill. looks good though!
your messgae got edited but let me touch on it for a second here...

all airflow tubes/chambers/ect BEFORE injectors (whether it be water, fuel or nitrous) flow better with the smoothest surface possible. in the old days when cars had carburators the fuel was added to the air just after the filter and it that case yes i would agree we wouldnt need to go as smooth since there was an air/fuel mixture and we dont want the fuel to puddle on the sides. when we get cyl heads ported we get tiny spoon shaped divots put into the intake runners to cause a tumbling (in some cases a tiny reverse flow) which keeps the fuel from collecting.

yes it may be a bit overkill for the coating but when we learned that the companies we deal with have the capability to do so we said sure lets go for it. its sprayed and then baked onto the piece at Dart Cyl Heads. They do not have the writeup for this coating on their website yet but its closer to their skirt coating then the others they have listed.

if you found info to the contrary about smooth versus rough please link me as id love to check it out.
 
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Old 02-13-2008, 08:04 PM
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Default Re: Polished y-pipe with teflon coating

Originally Posted by BrianBrave
Will you offer a core exchange?
yes im going to have to. at the moment i only have 2 cores, dodge does not have a part number for this (dodge dealership cannot order one if it breaks under warranty, lol), and mercedes is on indefinate backorder, there is no stock in the states or in germany (they have to make more). we did put an order in for 5 more to expand the cores we have but im not holding my breath on it so the exchanging of these will be a slow process with us only having 2 extras.
 
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Old 02-13-2008, 08:54 PM
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Default Re: Polished y-pipe with teflon coating

It would be nice to see a side by side "before and after" port and polish to compare.
 
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Old 02-14-2008, 07:07 AM
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Default Re: Polished y-pipe with teflon coating

Real world example on smooth versus rough....on boats a smooth service will not hinder you until after 100 mph. Then you want a rough surface....basically if you wax a REAL fast boat it will slow it down....Granted I am talking about .05% of the boating public.
I have no idea what air does but thats what water does on as boat.

My .02
 
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Old 02-14-2008, 08:18 AM
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Default Re: Polished y-pipe with teflon coating

Originally Posted by RIOT
Real world example on smooth versus rough....on boats a smooth service will not hinder you until after 100 mph. Then you want a rough surface....basically if you wax a REAL fast boat it will slow it down....Granted I am talking about .05% of the boating public.
I have no idea what air does but thats what water does on as boat.

My .02
and I'm almost positive that the airflow being pulled through the y-pipe is going well over 100mph under high engine load!
 
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Old 02-14-2008, 08:32 AM
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Default Re: Polished y-pipe with teflon coating

Originally Posted by Maxwell
and I'm almost positive that the airflow being pulled through the y-pipe is going well over 100mph under high engine load!
Do 600+mph airplanes have rough surfaces?
 
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Old 02-14-2008, 08:57 AM
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Default Re: Polished y-pipe with teflon coating

Originally Posted by ShawnQ
Do 600+mph airplanes have rough surfaces?
they might have a 220 grit polish to the wings. I know full scale gliders pilots rough up the get coats on the planes surface to gain an egde durring cross country races
 
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Old 02-14-2008, 09:00 AM
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Default Re: Polished y-pipe with teflon coating

Originally Posted by Maxwell
they might have a 220 grit polish to the wings. I know full scale gliders pilots rough up the get coats on the planes surface to gain an egde durring cross country races
BTW, I was not being a smart @$$ when I asked that - although it could be read that way. Every plane I have seen appears quite shiny and 'slick' although I've never been close enough to see just how smooth they are.

Interesting info regarding the 220 grit finish.

SQ
 
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Old 02-14-2008, 09:30 AM
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Default Re: Polished y-pipe with teflon coating

On boats we used to sand now we paint the last 8" to 14" or "running surface" with a black texture surface.
Best example I could give you is like a Rhino liner.
Maybe after certain speeds it goes the other way??

Oh by the way when is this part going to be available and for how much?
 
  #31 (permalink)  
Old 02-14-2008, 09:44 PM
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Default Re: Polished y-pipe with teflon coating

OUCH!!!! KINDA THOUGHT WE WOULD GET FIRST DIBBS GUESS NOT............ "if you have to ask why, your not ready for this part" hmm I think most people asked cause it seems useless and way over kill with no gain.

http://cgi.ebay.com/ebaymotors/C32-S...em150215254311
 
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Old 02-14-2008, 09:58 PM
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Default Re: Polished y-pipe with teflon coating

the first 2 extras were made for 2 members here but one of them wanted it a little more custom so i threw the extra up there to gauge interest with the mercedes guys
 

Last edited by NeedsWings; 02-14-2008 at 10:01 PM.
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Old 02-15-2008, 06:48 AM
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Default Re: Polished y-pipe with teflon coating

Originally Posted by jonnyangel04
OUCH!!!! KINDA THOUGHT WE WOULD GET FIRST DIBBS GUESS NOT............ "if you have to ask why, your not ready for this part" hmm I think most people asked cause it seems useless and way over kill with no gain.

http://cgi.ebay.com/ebaymotors/C32-S...em150215254311
I'm all for the the build overkill, but not the price overkill. If this part added atleast 3 to 4whp I'd consider it for that price, but it is more of an enhancer than a power maker.
 
  #34 (permalink)  
Old 02-15-2008, 06:59 AM
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Default Re: Polished y-pipe with teflon coating

Originally Posted by BlUEMDsrt6
I'm all for the the build overkill, but not the price overkill. If this part added atleast 3 to 4whp I'd consider it for that price, but it is more of an enhancer than a power maker.
Did you notice the core charge?
 
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Old 02-15-2008, 07:32 AM
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Default Re: Polished y-pipe with teflon coating

$100 after core charge is not terrible. If you want the comestics, it's a nice looking piece. To each his own.

MikeR
 
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Old 02-15-2008, 07:41 AM
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Default Re: Polished y-pipe with teflon coating

Originally Posted by ShawnQ
Did you notice the core charge?
Ok, I'll take that back (didn't notice core charge added). For $100 its not bad.
 
  #37 (permalink)  
Old 02-15-2008, 07:49 AM
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Default Re: Polished y-pipe with teflon coating

Originally Posted by BlUEMDsrt6
Ok, I'll take that back (didn't notice core charge added). For $100 its not bad.
Always stirring the pot, eh?

I didn't notice the core charge either at first...that's why I thought I'd ask.

I agree - $100 is reasonable if it helps.

SQ
 
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Old 02-15-2008, 07:52 AM
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Default Re: Polished y-pipe with teflon coating

Originally Posted by ShawnQ
Always stirring the pot, eh?
I prefer "very opinionated."
 
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Old 02-15-2008, 09:05 AM
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Default Re: Polished y-pipe with teflon coating

Talked last night with needswings for Almost an hour he has a few more tricks up his sleeves in the works great guy cant wait till he spills all his secrets. I have a feeling we will sometime in the near future be able to be as heavily modded as the SRT-4
 
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Old 02-15-2008, 09:38 AM
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Default Re: Polished y-pipe with teflon coating

Good news!! I was very impressed with Rob's intake. From the packaging/instructions to the final product and performance gains. It even impressed my dad(which is hard to do!!) I will definitely be doing business with him again! I like his ideas and im glad he is doing the work for our cars.
 


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