Tunnel cooling mod .....And hoses

Tunnel cooling mod .....And hoses

Author
Discussion

Patgas1

Original Poster:

142 posts

115 months

Tuesday 18th November 2014
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Well I decided to change few hoses for silicone ones as they where starting to weep whilst standing .....well nearly all of them really before coolant is emptied over the garage,I thought it a good time to do the tunnel cooling mod ....remove the old flanges to re use and removed ally plate to fix them too .......well I would love to meet the knob who put the screws behind the steering rack braces 😁

mgbond

6,749 posts

231 months

Wednesday 19th November 2014
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If it's the bolts u are referring to. I couldn't get them off but but managed the mod with it all in sittue.

Patgas1

Original Poster:

142 posts

115 months

Wednesday 19th November 2014
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Yep I managed to get them off as I wanted slide the two collars I removed from the heater in from back and seal them in with seam sealer/panel adhesive.
Do you open up the ducts on front or are they ok and is there any benefits from switching tunel vents to point to the back ......just a thought.
Cheers

spec1976

63 posts

128 months

Thursday 20th November 2014
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Hi Pat,

you got any pictures of your finished work?

brappage

235 posts

143 months

Thursday 20th November 2014
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Really was a pain getting them out. I ended up cutting the heads off them to get them out and then took what was left out with grips. Would have been much simpler if they were an inch higher.

StreetDragster

1,513 posts

217 months

Thursday 20th November 2014
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I've altered my cooling mod to take air from ducts in the floor, leaving me four inlets for the heater box.
I still have the front of the car striped down so I'll take some pictures if required.

Don't think the reduced air under the car will effect the downforce to much on my road car, and ground clearance is only slightly reduced

Blu3R

2,362 posts

198 months

Thursday 20th November 2014
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StreetDragster said:
I've altered my cooling mod to take air from ducts in the floor, leaving me four inlets for the heater box.
I still have the front of the car striped down so I'll take some pictures if required.

Don't think the reduced air under the car will effect the downforce to much on my road car, and ground clearance is only slightly reduced
What happens when it rains?

StreetDragster

1,513 posts

217 months

Thursday 20th November 2014
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When the normal tunnel cooling mod is preformed, it's from the back of the brake ducts, picking up water and spray and sending it straight down the roughly horizontal pipe.
My section has a short length of vertical climb, and a much smaller intake area, i doubt it would be any worse than the normal mod.

Any water can drain out the tunnel anyway

Patgas1

Original Poster:

142 posts

115 months

Thursday 20th November 2014
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Does the normal cooling mod involve opening the front air intakes up ? And for you turn tunnel vents around under car ......just a thought .
Yes pics would be good please

StreetDragster

1,513 posts

217 months

Thursday 20th November 2014
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The normal way of doing it is that if you look at the car, two hoses from the right brake duct go to the heater box, and two from the left brake duct go to the heater box, so four feeds into the heater box in total.

You take two of those pipes, block the inlets into the heater box, and replumb them to the bulkhead to feed air into the tunnel.

I think the tunnel louvers should face rear wards, i.e if you look from the back to the front of the car you can see the holes of the vent. air passes over them under the car and draws the hot air out of the tunnel, rather than being ducts to force it in.

Matt

Patgas1

Original Poster:

142 posts

115 months

Thursday 20th November 2014
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Yep that is what I have done took two middle ones and routed them too tunel,just unsure about whether the louvred should be switched around or left as they are ?

Patgas1

Original Poster:

142 posts

115 months

Saturday 22nd November 2014
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Well managed to get if all back together last night .....may have been easyier if I was a trapeze artist that could do key hole surgery ?? just wondering if when this mod is done do you normally remove plate in centre of front ducts! Why is it there is it to stop water ?

2.5bluenob

1,620 posts

175 months

Saturday 22nd November 2014
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Patgas1 said:
Well managed to get if all back together last night .....may have been easyier if I was a trapeze artist that could do key hole surgery ?? just wondering if when this mod is done do you normally remove plate in centre of front ducts! Why is it there is it to stop water ?
i removed it to let more air in.

StreetDragster

1,513 posts

217 months

Sunday 23rd November 2014
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There's mine, going to the floor rather than the brake ducts

Matt