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Model specific boards => Golf mk4 => Topic started by: Gabriel2202 on 12 April 2013, 14:28

Title: Wirewound vs Metal Film Resistor for n249 delete
Post by: Gabriel2202 on 12 April 2013, 14:28
I have been looking into the best resistor to fit when deleting the n249 valve and everyone seems to go for a 10w 330r ceramic WW.

I found this resistor at maplins that I think will be up for the job, if my maths is any good, but its a metal film resistor.

http://www.maplin.co.uk/metal-film-2w-resistor-5729

How does a metal film resistor differ to a wirewound? (apart from the obvious) and Is it as safe as a wirewound resistor for the n249 delete?
Title: Re: Wirewound vs Metal Film Resistor for n249 delete
Post by: dom on 12 April 2013, 15:06
I bypassed the valves and left them plugged in, not had any error codes in the 12 months since I did the bypass.
Title: Re: Wirewound vs Metal Film Resistor for n249 delete
Post by: Gabriel2202 on 12 April 2013, 15:17
I bypassed the valves and left them plugged in, not had any error codes in the 12 months since I did the bypass.

Yeah i have aswell but have recently been getting an open circuit for that whole loom there is a break somewhere. Dalo Harkin recommended I try deleting the n249 as when he just bypassed his it caused his car to run funny until he fit a resistor.

Title: Re: Wirewound vs Metal Film Resistor for n249 delete
Post by: rio_gti on 12 April 2013, 15:25
you need one with a heat sink, wouldnt like to try that but you could always be a ginuepig!!
Title: Re: Wirewound vs Metal Film Resistor for n249 delete
Post by: Gabriel2202 on 12 April 2013, 15:28
you need one with a heat sink, wouldnt like to try that but you could always be a ginuepig!!

Well on vortex everyone seems to be going for these....

http://www.amazon.co.uk/gp/product/B0087ZDLNI/ref=pd_lpo_k2_dp_sr_1?pf_rd_p=103612307&pf_rd_s=lpo-top-stripe&pf_rd_t=201&pf_rd_i=B0068VRD8M&pf_rd_m=A3P5ROKL5A1OLE&pf_rd_r=062Q34MZBSE93BVKJQX8

As I understand it everyone goes for 10w to stop them getting too hot, when in reality theres about 0.6w going through them. Even so how hot can they really get with 14.4v?
Title: Re: Wirewound vs Metal Film Resistor for n249 delete
Post by: Gabriel2202 on 12 April 2013, 15:29
Not that I know much about basic circuitry lol
Title: Re: Wirewound vs Metal Film Resistor for n249 delete
Post by: rio_gti on 12 April 2013, 15:31
i did see those but i didnt like the look... or the material.... im not vain in the slightest!!!!
Title: Re: Wirewound vs Metal Film Resistor for n249 delete
Post by: Gabriel2202 on 12 April 2013, 15:36
i did see those but i didnt like the look... or the material.... im not vain in the slightest!!!!

haha spend alot of time looking under the bonnet then?  :wink: lol I know what you mean, I was gonna just wrap it in a load of elecrtical tape to stop the cement shaking loose and just pretend it isnt there. Or depending on how big they are I might try and hide it in the connector...
Title: Re: Wirewound vs Metal Film Resistor for n249 delete
Post by: rio_gti on 12 April 2013, 15:54
can you spot where it is?!!!!

clue... its the carbon delete resistor your looking for  :wink:


(http://i1092.photobucket.com/albums/i408/rioracer/58CD5315-BE7C-4726-8F4A-B55D1CCA1445-11701-0000072B8C38827D.jpg) (http://s1092.photobucket.com/user/rioracer/media/58CD5315-BE7C-4726-8F4A-B55D1CCA1445-11701-0000072B8C38827D.jpg.html)
Title: Re: Wirewound vs Metal Film Resistor for n249 delete
Post by: Gabriel2202 on 12 April 2013, 16:10
Ok your bay does look nicer, but you're cheating cus you have a polished mani  :grin:

You notice any benefits of removing the carbon canister?
Title: Re: Wirewound vs Metal Film Resistor for n249 delete
Post by: Wazzzer on 12 April 2013, 16:22
I can see it Rio :wink:
Title: Re: Wirewound vs Metal Film Resistor for n249 delete
Post by: dom on 12 April 2013, 16:27
So can I  :grin:
Title: Re: Wirewound vs Metal Film Resistor for n249 delete
Post by: Gabriel2202 on 12 April 2013, 16:46
Here?

(http://i1355.photobucket.com/albums/q720/Gabriel_2202/58CD5315-BE7C-4726-8F4A-B55D1CCA1445-11701-0000072B8C38827D_zps20cdfbc8.jpg) (http://s1355.photobucket.com/user/Gabriel_2202/media/58CD5315-BE7C-4726-8F4A-B55D1CCA1445-11701-0000072B8C38827D_zps20cdfbc8.jpg.html)
Title: Re: Wirewound vs Metal Film Resistor for n249 delete
Post by: rio_gti on 12 April 2013, 17:14
haha you got it!!!
thought it would be hard to spot cos it matches the coolent bottle in colour  :sick:  :grin:

how many more can you see??!!!

(http://i1092.photobucket.com/albums/i408/rioracer/A7259F17-BC0A-4F22-B5D4-96C8F97474D5-431-00000064DA198A1E_zps5f7d02ec.jpg) (http://s1092.photobucket.com/user/rioracer/media/A7259F17-BC0A-4F22-B5D4-96C8F97474D5-431-00000064DA198A1E_zps5f7d02ec.jpg.html)

benefits are no clicking lol!!! but tbh i couldnt really tell you any difference as done alot of other work at the same time.... it is running alot better than it was thou!!
Title: Re: Wirewound vs Metal Film Resistor for n249 delete
Post by: Gabriel2202 on 12 April 2013, 17:19
Ah right, i'm selling up next month so should probably calm down on modding it. Just trying to fix the electric issues to have a fault code free vehicle to sell!  :grin:
Title: Re: Wirewound vs Metal Film Resistor for n249 delete
Post by: dom on 12 April 2013, 17:45
Blue cable ties are a giveaway :grin:
Title: Re: Wirewound vs Metal Film Resistor for n249 delete
Post by: beppe2672 on 12 April 2013, 19:30
Mate go for a 10W 330ohm resistor or things will start to get hot. Resistors can only usually take the max rated power for a second or two, I had to use a 30W resistor for my led indicators
Title: Re: Wirewound vs Metal Film Resistor for n249 delete
Post by: rio_gti on 12 April 2013, 19:30
Blue cable ties are a giveaway :grin:

Damn!!! Could only use what always to hand!!!
Title: Re: Wirewound vs Metal Film Resistor for n249 delete
Post by: Gabriel2202 on 12 April 2013, 20:26
Mate go for a 10W 330ohm resistor or things will start to get hot. Resistors can only usually take the max rated power for a second or two, I had to use a 30W resistor for my led indicators


Done it mate, they ended up being the cheapest anyhow so bought them to be safe. Cheers though!