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Lambley

Member Since: 20 Apr 2013
Location: Mid Devon
Posts: 1435

Induction pipe modification on a Td5 anyone?

I've done pretty much most things to my Td5 90 and love it, but after spending some time looking at the intake from the wing to the airbox, it looks a bit restrictive with all the joins and bend, is this the case, does it matter, and is there a way of simply having a hose from the wing to the airbox with less restrictions?
Does anyone make a hose or kit to replace it?

25th Apr 2015 8:20am

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4786

Irb did mine, 5.5 inch pipe (I think) from the box to the wing. Without the grille on you can fit your arm down it! Sounds lovely too, especially with a vnt

2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
Instagram http://www.instagram.com/george_grafton

25th Apr 2015 9:10am

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4786

You can see the pipe running in front of the brake servo here

Click image to enlarge 2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
Instagram http://www.instagram.com/george_grafton

25th Apr 2015 9:14am

Lambley

Member Since: 20 Apr 2013
Location: Mid Devon
Posts: 1435

Thanks Grafty, looks like just what I'm after.
Do they sell the parts to do it?

25th Apr 2015 9:28am

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4786

I'm not sure, mine was done as a prototype for the kit. I'll get in touch with Ian and pm you

25th Apr 2015 9:48am

Lambley

Member Since: 20 Apr 2013
Location: Mid Devon
Posts: 1435

Cheers Grafty, much appreciated

25th Apr 2015 9:49am

taazzukcb

Member Since: 30 Aug 2013
Location: Derbyshire
Posts: 663

2004 Defender 110 Td5 DCPU Stornoway Grey

I did mine myself. Never seen the IRB kit, but funny how similar it is :p!

Click image to enlarge

25th Apr 2015 12:04pm

Lambley

Member Since: 20 Apr 2013
Location: Mid Devon
Posts: 1435

Thanks Taaz,

Looks like you've done the whole shabang and done the VNT turbo too, I don't want to go too far, just the intake to the airbox would be great. What size pipe did you use please? I guess you made something up for the wing intake?
Cheers

25th Apr 2015 12:09pm

excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5852

1999 Defender 110 Td5 SW Caledonian Blue

Did you notice any difference in performance with the 5.5" pipe ? 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

25th Apr 2015 12:22pm

taazzukcb

Member Since: 30 Aug 2013
Location: Derbyshire
Posts: 663

If you bare with me, I will take some closer pics later and get some of how it goes into the air box etc and try and do a list of bits and bobs!

I thought I had some pics but just looked through me phone and seems I never did!

25th Apr 2015 12:28pm

taazzukcb

Member Since: 30 Aug 2013
Location: Derbyshire
Posts: 663

I cant comment about the difference to a stock motor as it was all done at the same time as the rest of the bits went on.

However even with just a remap, the stock piping is massively restrictive and will be quite limiting, so larger bore would allow more air at a quicker rate giving a much better map and the engine wont be left wanting for air.

I believe the optimal feed is 102mm (4") straight through. 76mm would give much better flow to, but if you want the most out of it, 102mm is considered the minimum!

Gives a ruddy nice noise to :p!

25th Apr 2015 12:32pm

Lambley

Member Since: 20 Apr 2013
Location: Mid Devon
Posts: 1435

Brill, thanks Taaz, I've just been and taken off the air-box and piping, the entry to the airbox funnel is 76mm, so a 76mm pipe to there from the wing intake would help, and not be too difficult by the looks of things, otherwise it'd mean making a plate or something to fix the pipe to.
I'll wait to see the pics later

25th Apr 2015 1:02pm

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4786

I did notice a big difference with the larger pipe, much quicker to come on boost and pulled harder at the top end. I had the inwards pipe and air box mod at the same time

25th Apr 2015 3:53pm

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4786

I also had a vnt, but did the air box mods before the turbo change

25th Apr 2015 3:54pm

tazmarkuk

Member Since: 24 Jan 2012
Location: Birmingham
Posts: 134

taazzukcb, where did you get the Silcone hoses from,one for the the turbo to air intake, second one by the MAF meter, would really appreciate the info, I also have a VNT turbo. Thanks.

25th Apr 2015 5:47pm

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