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EFR Manifold wot you think

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Old 24-02-2019, 05:38 PM
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dan le moignan
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Originally Posted by Caddyshack
I spoke to Mark today about my gearbox spacing and asked him how my Nortec compared to his one in the pic, he said they are very similar and it defo does not need a hanger if you prefer not to run one.
Ah sorry Mk got you Iam abit slow today!
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Old 24-02-2019, 05:42 PM
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Originally Posted by ajamesc
Didn’t someone reach the limit of a rwd manifold on a top speed run? Sure someone got a cylinder too hot with around the 650 odd mark and it was the manifold restricting it
That would seem unlikely.
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Old 24-02-2019, 05:43 PM
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Originally Posted by Adam-M
I’d like to see a comparison between a tubular manifold and a 2wd, 2wd manifold has to be one of the best standard turbo manifolds I’ve seen but for looks alone I’d go nortech

Mark @ mad did say 50% gains of going efr are in his manifold
For physical access to nuts and bolts...the last manifold I'd use is the standard 2wd one ! lol
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Old 24-02-2019, 05:57 PM
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Originally Posted by stevieturbo
That would seem unlikely.
Possibly just seem to remember reading something years ago
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Old 24-02-2019, 07:25 PM
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Originally Posted by Caddyshack


it was MK Mark Walker I spoke to, not MAD.

The manifold is very important but I know the 2wd one is twin scroll but how good it is compared I do not know. I wonder if Mark Shead or anyone else has run a back to back comparison?
I’m not 100% but I’m pretty sure I remember Mark saying he did test them and the nortech one said being better

Cheers Paul
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Old 24-02-2019, 07:26 PM
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Originally Posted by ajamesc
Didn’t someone reach the limit of a rwd manifold on a top speed run? Sure someone got a cylinder too hot with around the 650 odd mark and it was the manifold restricting it
i know they are more than good enough for over 700hp

Cheers Paul
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Old 24-02-2019, 10:28 PM
  #87  
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this is efr7064 on stock 2wd manifold with different trouser section


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Old 27-02-2019, 02:25 PM
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Originally Posted by 20/20 vision
this is efr7064 on stock 2wd manifold with different trouser section

https://www.youtube.com/watch?v=q3PfyeLALPM
Nice pretty sure i have been there
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Old 27-02-2019, 04:07 PM
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Nice video.
Good idea using the 2wd half and then tubing the last bit to adapt to efr twin scroll. I think the 7670 suits the yb better .
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Old 28-02-2019, 02:19 PM
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Originally Posted by cpur
Nice video.
Good idea using the 2wd half and then tubing the last bit to adapt to efr twin scroll. I think the 7670 suits the yb better .
Why do you think the 7670 suits the yb better out of interest?

Cheers Paul
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Old 28-02-2019, 04:13 PM
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Does anyone know what sort of boost is run on 7064 for around 450hp?
My head gasket was replaced in 1998 (only done about 10k since) by castle performance for a group n head gasket what ever that is?!
Hope it will be ok with more pressure, holds 27psi no issues at the moment
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Old 28-02-2019, 04:18 PM
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Originally Posted by dan le moignan
Does anyone know what sort of boost is run on 7064 for around 450hp?
My head gasket was replaced in 1998 (only done about 10k since) by castle performance for a group n head gasket what ever that is?!
Hope it will be ok with more pressure, holds 27psi no issues at the moment
‘that will very much depend on the map etc but mine was around 2.2bar...that’s about 32 psi. Mine was just a metal head gasket.

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Old 28-02-2019, 05:11 PM
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Ok cool, I think it peaks just over 30 psi at the mo then holds 27.
think block needs decking for wrc metal gasket?
will see how I get on with the current one
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Old 02-03-2019, 03:45 PM
  #94  
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Guys does anyone know where to get studs for the efr manifold?
They are M10X1.25, common pitch seems to be 1.5 so struggling to find the 1.25 pitch with aerotight nuts etc
Last edited by dan le moignan; 17-04-2019 at 07:47 PM.
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Old 17-04-2019, 07:48 PM
  #95  
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Double post
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Old 17-04-2019, 08:18 PM
  #96  
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Most Jap stuff is 1.25, so should be very easy to come by.
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Old 18-04-2019, 05:27 AM
  #97  
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Have ordered some carbon steel ones now, still struggled though in M10, could only find tri lock nuts in this pitch so hopefully they will hold tight
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Old 18-04-2019, 12:00 PM
  #98  
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get the genuine Mitsi Evo studs and nuts which are the correct thread - about Ł50 for 4 studs and nuts but the nuts don't come loose and they are re-useable
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