wilo Posted July 12, 2016 Share Posted July 12, 2016 (edited) nearly ready to buy a plenum for my 04 DE . Looking about iv noticed some say 1/2 inch .others say 5/16 or 8/16 . can someone please explain which i need and what the differences are ...tia seen these ..... Edited July 12, 2016 by wilo Quote Link to comment Share on other sites More sharing options...
davey_83 Posted July 13, 2016 Share Posted July 13, 2016 Most go with the 5/18, they all do the same job of increasing air flow/pulses to all cyclinders as the front two in standard form receive less due to design - good rated engine mod. Quote Link to comment Share on other sites More sharing options...
brillomaster Posted July 13, 2016 Share Posted July 13, 2016 the thicker ones may not fit under a strut brace without some spacers, and then even if the strut brace fits, the bonnet may not close! 1 Quote Link to comment Share on other sites More sharing options...
wilo Posted July 13, 2016 Author Share Posted July 13, 2016 (edited) Most go with the 5/18, they all do the same job of increasing air flow/pulses to all cyclinders as the front two in standard form receive less due to design - good rated engine mod. okay cheers Davey ill go for the 5/16 as i haven't seen a 5/18 one.is the one on the pic iv posted a decent brand? and iv noticed that these are the basic packs ........there are similar more expensive kits of that brand that have extra stuff in and a metal type smaller/thinner gasket with large holes in it .ill see if i can find a pic Edited July 13, 2016 by wilo Quote Link to comment Share on other sites More sharing options...
Toon Chris Posted July 13, 2016 Share Posted July 13, 2016 You only need the spacer and screws. The second picture you post includes a gasket if you are removing and replacing the entire plenum. Not really sure why you would do that when you only need to take the top half off, fit the spacer and replace the top. I think some spacers have a thermal layer or are made of a thermal material that helps to stop heat-soak from the engine (the first one says this in the blurb). Possibly you get a separate thermal gasket for the plenum as a whole on the more expensive pack? That's a complete guess More likely its just stuff you don't need. You get what you pay for. Contact a trader from the forum who will have a decent quality brand they can offer you, like Motordyne. 1 Quote Link to comment Share on other sites More sharing options...
davey_83 Posted July 13, 2016 Share Posted July 13, 2016 (edited) sorry meant 5/16 lol for piece of mind id get: http://h-dev.co.uk/product/h-dev-350z-intake-plenum-spacer-kit-vq35de/?v=79cba1185463 Edited July 13, 2016 by davey_83 1 Quote Link to comment Share on other sites More sharing options...
Tarmac@TarmacSportz Posted July 13, 2016 Share Posted July 13, 2016 I've got a Motordyne in stock 5/16 £189 Anything bigger is a pain for putting strut brace on Anything rubber like the Blox - I would avoid personally PM me if you need any help 2 Quote Link to comment Share on other sites More sharing options...
wilo Posted July 13, 2016 Author Share Posted July 13, 2016 I've got a Motordyne in stock 5/16 £189 Anything bigger is a pain for putting strut brace on Anything rubber like the Blox - I would avoid personally PM me if you need any help is that £189 delivered Quote Link to comment Share on other sites More sharing options...
Tarmac@TarmacSportz Posted July 13, 2016 Share Posted July 13, 2016 I've got a Motordyne in stock 5/16 £189 Anything bigger is a pain for putting strut brace on Anything rubber like the Blox - I would avoid personally PM me if you need any help is that £189 delivered Yes buddy Link below http://www.tarmacsportz.co.uk/products.aspx?CategoryId=dd876c45-6d4a-41df-bc25-7c19903fe703 Quote Link to comment Share on other sites More sharing options...
wilo Posted July 13, 2016 Author Share Posted July 13, 2016 okay so iv now found a supplier for the plenum ...so my next question is .... if in attempt to fit the plenum my self , which instant gasket brand is recommended with the motordyne kit ? also whould i need to order any other bits to do the job ie throttle body gasket? Quote Link to comment Share on other sites More sharing options...
ZMANALEX Posted July 13, 2016 Share Posted July 13, 2016 Do not use Instant gasket or any other sealer for that matter. The MD spacer is fitted dry and no other parts should be required. 2 Quote Link to comment Share on other sites More sharing options...
Tarmac@TarmacSportz Posted July 13, 2016 Share Posted July 13, 2016 okay so iv now found a supplier for the plenum ...so my next question is .... if in attempt to fit the plenum my self , which instant gasket brand is recommended with the motordyne kit ? also whould i need to order any other bits to do the job ie throttle body gasket? You get instructions and all the fittings needed buddy, no need for anything else 1 Quote Link to comment Share on other sites More sharing options...
jnoz Posted July 15, 2016 Share Posted July 15, 2016 (edited) I'm in the progress of making some of these. So really glad the thread came up! How much do the gaskets cost for the intake? Wow, that linked spacer is £253.18! Edited July 15, 2016 by jnoz 1 Quote Link to comment Share on other sites More sharing options...
Andy_Muxlow Posted July 15, 2016 Share Posted July 15, 2016 okay so iv now found a supplier for the plenum ...so my next question is .... if in attempt to fit the plenum my self , which instant gasket brand is recommended with the motordyne kit ? also whould i need to order any other bits to do the job ie throttle body gasket? It's really easy wilo I did mine myself and if I can do it anyone can 😂 Sent from my iPhone using hammer and chisel! 1 Quote Link to comment Share on other sites More sharing options...
Brimstoneboy Posted July 15, 2016 Share Posted July 15, 2016 Might want to invest in a torque wrench if your heavy handed, if you ain't got access to one ,it is very easy though took about a hour for me to do and I'm pretty useless round cars . Google motordyne plenum instal should find a link for instructions can have a read before it comes . Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
wilo Posted July 15, 2016 Author Share Posted July 15, 2016 Might want to invest in a torque wrench if your heavy handed, if you ain't got access to one ,it is very easy though took about a hour for me to do and I'm pretty useless round cars . Google motordyne plenum instal should find a link for instructions can have a read before it comes . Sent from my iPhone using Tapatalk yea im very heavy handed tbh..break out i touch and thx iv seen the video Quote Link to comment Share on other sites More sharing options...
veilside z Posted July 16, 2016 Share Posted July 16, 2016 Are you getting a remap done once fitted buddy for the extra gain? Quote Link to comment Share on other sites More sharing options...
wilo Posted July 16, 2016 Author Share Posted July 16, 2016 Are you getting a remap done once fitted buddy for the extra gain? yea at some point ..should be ordering the plenum next week once iv sorted fitting with the garrage . already got a full decat milltek system and ramair induction so remap will definitely be on the cards . if i can make 300bhp ill be happy tbh Quote Link to comment Share on other sites More sharing options...
wilo Posted July 16, 2016 Author Share Posted July 16, 2016 okay so iv now found a supplier for the plenum ...so my next question is .... if in attempt to fit the plenum my self , which instant gasket brand is recommended with the motordyne kit ? also whould i need to order any other bits to do the job ie throttle body gasket? You get instructions and all the fittings needed buddy, no need for anything else cheers will be ordering next week . Quote Link to comment Share on other sites More sharing options...
davey_83 Posted July 16, 2016 Share Posted July 16, 2016 should see decent gains over standard with those mods prior to remap also Quote Link to comment Share on other sites More sharing options...
jnoz Posted July 23, 2016 Share Posted July 23, 2016 My skunk spacer arrived! It turned up, and it's made from PLASTIC! Well gutted for the price. I'll be making alloy ones. Hope it goes okay! Need to find how I will gasket it. Plenum gaskets cheap enough surely. Quote Link to comment Share on other sites More sharing options...
davey_83 Posted July 23, 2016 Share Posted July 23, 2016 is there not at least one gasket attached to the plenum spacer from box? Quote Link to comment Share on other sites More sharing options...
jnoz Posted July 23, 2016 Share Posted July 23, 2016 (edited) yes. there is. but im going to make my own spacer. but this one has a rubber seal integrated within the spacer, rather than being just a separate gasket Edited July 23, 2016 by jnoz Quote Link to comment Share on other sites More sharing options...
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