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 Cooling system hoses question
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npez



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392 posts
1993 Nissan 300ZX Turbo (soon 2B twin-turbo 450ZX) 2002 BMW M3 2008 Honda Odyssey Touring (Mama)
Houston TX
8-30-2007

  Cooling system hoses question


Just wanted to get everyone's thoughts on this. I'm replacing the cooling system hoses with SS braided ones and by the measurements I'm taking these are some odd size hoses (not sure if they're metric or what).

What I've got is as follows:
Hoses on coolant Pipes under Plenum: 1-1/4" (no problem) and 1-5/8"
Upper/Lower Hoses: 1-3/8"

Do you all typically size up and clamp down hard on the hose for the odd size hoses or size down (which would be a little difficult with the SS I'm looking at) and stretch the hose to get it on?

Please advise as I'm trying to get this sorted to order the rest of the hoses from Summit.

Thanks,
Nick.



1993 300ZX Twin-Turbo soon to be 450ZX Twin-Turbo (Oxford Gray)
2002 BMW M3 (Imola Red)
2008 Honda Odyssey Touring (Hey the kids have to ride somewhere!)

periferal7



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94 posts
1978 Datsun 210 Wagon w/CA18DET
orlando fl
5-12-2008

 « Re: Cooling system hoses question (npez)


summit sell hose kits are bigger in diameter, but have reducer sleeves that reduce the inner diameter for different applications, I just bought one for my custom radiator, since the engine has 1 1/4 diameter and the radiator had 1 3/4. they work great.no leaks!



http://i289.photobucket.com/al...3.jpg
npez



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392 posts
1993 Nissan 300ZX Turbo (soon 2B twin-turbo 450ZX) 2002 BMW M3 2008 Honda Odyssey Touring (Mama)
Houston TX
8-30-2007

 « Re: Cooling system hoses question (periferal7)


Quote, originally posted by periferal7 »
summit sell hose kits are bigger in diameter, but have reducer sleeves that reduce the inner diameter for different applications, I just bought one for my custom radiator, since the engine has 1 1/4 diameter and the radiator had 1 3/4. they work great.no leaks!

Thanks for the feedback - I went and found the reducers on Summit, and in reading the details, I think I may not have stated my question clearly enough. My challenge is not with an odd size between one side and the other on the hose.

The odd sizes are 1-3/8" on both sides of the hose and 1-5/8" on both sides of the other hose. So I'm looking to see if I should go up to the next size available (i.e. 1-1/2" and 1-3/4" respectively) and just clamp it down tight. The difference is minimal (1/16" on each side), but I wanted to double-check as I don't want any unexpected leaks after buying $100 in hoses.

Thanks,
Nick.

periferal7



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94 posts
1978 Datsun 210 Wagon w/CA18DET
orlando fl
5-12-2008

 « Re: Cooling system hoses question (npez)


I WOULD NOT DO THAT.DOING THAT HAS NO PURPOSE AND WOULD ONLY CAUSE POSSIBLE LEAKS BEING THAT IT IS BRAIDED.JUST USE THE PROPER SIZES.
tmorgan4

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714 posts
2000 Pathfinder
Fort Collins Co
12-24-2006

 « Re: Cooling system hoses question (periferal7)


Since you're obviously wanting to clean up the engine bay and trying to avoid some ugly hoses, I'd go with braided lines and AN fittings. Everywhere that you would normally clamp a hose on gets a weld on AN fitting and each end of the line gets a fitting too. Guaranteed not to leak and trick as hell!

These weld on bungs are made in steel and aluminum to suit your needs. If you aren't familiar with AN fittings, divide the number of the fitting by 16 and that tells you the ID in inches.

A #4 fitting has a 1/4" ID and a #16 has a 1" ID.

SuperHatch



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596 posts
07 Tundra, VH Powered S14, VH Powered 92 Slicktop Z32
Manahawkin NJ
11-17-2006

 « Re: Cooling system hoses question (tmorgan4)


Quote, originally posted by tmorgan4 »
Since you're obviously wanting to clean up the engine bay and trying to avoid some ugly hoses, I'd go with braided lines and AN fittings. Everywhere that you would normally clamp a hose on gets a weld on AN fitting and each end of the line gets a fitting too. Guaranteed not to leak and trick as hell!

These weld on bungs are made in steel and aluminum to suit your needs. If you aren't familiar with AN fittings, divide the number of the fitting by 16 and that tells you the ID in inches.

A #4 fitting has a 1/4" ID and a #16 has a 1" ID.

I would suggest the exact same thing. Problem is, it would just undo all the bling bling chroming he just did...



- Stephen
http://www.godspeed-racing.com
npez



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392 posts
1993 Nissan 300ZX Turbo (soon 2B twin-turbo 450ZX) 2002 BMW M3 2008 Honda Odyssey Touring (Mama)
Houston TX
8-30-2007

 « Re: Cooling system hoses question (periferal7)


Quote, originally posted by periferal7 »
I WOULD NOT DO THAT.DOING THAT HAS NO PURPOSE AND WOULD ONLY CAUSE POSSIBLE LEAKS BEING THAT IT IS BRAIDED.JUST USE THE PROPER SIZES.

Why are you YELLING ? Just kiddin - that's the reason for this post - I cannot source a stainless 1-5/8 , 1-3/8 hose. I've looked at Summit, Jegs, and online in general.

I guess I'll keep lookin.

Thanks,
Nick.

npez



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392 posts
1993 Nissan 300ZX Turbo (soon 2B twin-turbo 450ZX) 2002 BMW M3 2008 Honda Odyssey Touring (Mama)
Houston TX
8-30-2007

 « Re: Cooling system hoses question (tmorgan4)


Quote, originally posted by tmorgan4 »
Since you're obviously wanting to clean up the engine bay and trying to avoid some ugly hoses, I'd go with braided lines and AN fittings. Everywhere that you would normally clamp a hose on gets a weld on AN fitting and each end of the line gets a fitting too. Guaranteed not to leak and trick as hell!

These weld on bungs are made in steel and aluminum to suit your needs. If you aren't familiar with AN fittings, divide the number of the fitting by 16 and that tells you the ID in inches.

A #4 fitting has a 1/4" ID and a #16 has a 1" ID.

Quote, originally posted by SuperHatch »
I would suggest the exact same thing. Problem is, it would just undo all the bling bling chroming he just did...

Tyler,

I could've gone AN/weld-on if I had thought about it earlier, but as Steve mentioned that would've had to been pre-chrome. So in general is everybody doing (A) weld-on/AN or (B) using the factory hoses? The ones under the plenum I can probably do factory hoses as they can't be seen as much and they're only (2-3/4" long and 3" long respectively) the upper and lower radiator hose will be a challenge as I was looking at either Spectre magna-cool or Earl's form a flex hose and they only come in 1.25, 1.5, and 1.75 inches ID.

I would think there have to be other options out there......

Thanks everybody for your input so far.....

Nick.


ramper

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12 posts
89 240sx w/modded rb25,89 240sx fully built sr20det,project 89 450sx
San Antonio Tx
8-5-2008

 « Re: Cooling system hoses question (npez)


just a suggestion. But if ur goal is purely for bling factor u might consider this

http://cgi.ebay.com/ebaymotors...ZWDVW

cheap alternative but would give u the steal braided look and also solve any leak issues because ud be retaining the stock hoses?

again just a suggestion



89 nissan 240sx hatchback with a semi-built rb25
-power fc
-hx35
-550 injectors
-greddy intake
-ebay top mount

89 nissan 240sx coupe with a fully built sr
-to much to list

project 89 450sx
-take a seat the show will start soon. Grab some

SuperHatch



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596 posts
07 Tundra, VH Powered S14, VH Powered 92 Slicktop Z32
Manahawkin NJ
11-17-2006

 « Re: Cooling system hoses question (ramper)


Available in the diameters you need and you cut to length...

http://www.silhoses.com/produc...m=SFL

Also available in the diameters you need, but there is no wired core for strength...

http://www.silhoses.com/produc...m=SHL

Yes, I know, I'm your hero

npez



Offline

392 posts
1993 Nissan 300ZX Turbo (soon 2B twin-turbo 450ZX) 2002 BMW M3 2008 Honda Odyssey Touring (Mama)
Houston TX
8-30-2007

 « Re: Cooling system hoses question (SuperHatch)


Quote, originally posted by SuperHatch »
Available in the diameters you need and you cut to length...

http://www.silhoses.com/produc...m=SFL

Also available in the diameters you need, but there is no wired core for strength...

http://www.silhoses.com/produc...m=SHL

Yes, I know, I'm your hero


you're the man - thanks Steve.

Nick.

SuperHatch



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596 posts
07 Tundra, VH Powered S14, VH Powered 92 Slicktop Z32
Manahawkin NJ
11-17-2006

 « Re: Cooling system hoses question (npez)


Quote, originally posted by npez »

you're the man - thanks Steve.

Nick.

You're welcome!

T45



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1170 posts
King Kong powered Z32
va beach va
6-9-2006

 « 


Probably not what you're after, but after pulling my hair out trying to make some hoses from the auto parts stores fit, I ended up getting some 1-1/4 silicone elbows and 1-1/4 brass tubing to make mine work. It turned out nice and is very simple and easy to change. Not cheap though, each elbow was 20 bucks.
craigztoyz



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708 posts
90 300ZX VH45 95 J30 90 rx7 lots of cars older then me.
Austin TX
1-18-2008

 « Re: Cooling system hoses question (npez)


Quote, originally posted by npez »

Why are you YELLING ? Just kiddin - that's the reason for this post - I cannot source a stainless 1-5/8 , 1-3/8 hose. I've looked at Summit, Jegs, and online in general.

I guess I'll keep lookin.

Thanks,
Nick.

Not the perect answer, but what I did---

AutoZone for the upper, lower is all Z just shortened, then I have the SS crap to put over it to look better, but have not covered any of my lines yet. Figure I still have to pull motor to paint eng bay, so at that time....

npez



Offline

392 posts
1993 Nissan 300ZX Turbo (soon 2B twin-turbo 450ZX) 2002 BMW M3 2008 Honda Odyssey Touring (Mama)
Houston TX
8-30-2007

 « Re: Cooling system hoses question (craigztoyz)


Quote, originally posted by craigztoyz »

Not the perect answer, but what I did---

AutoZone for the upper, lower is all Z just shortened, then I have the SS crap to put over it to look better, but have not covered any of my lines yet. Figure I still have to pull motor to paint eng bay, so at that time....


Thanks Craig. I'm going down the same route -sorta. I ordered the Infiniti hoses for under the plenum (that way they're 100% correct) and the thermostat hose/elbow as well. I'm re-using the pipe (it's actually in the last batch of chrome) that goes to the lower radiator pipe along the front of the timing cover.

On the lower/upper sections of hose I'll cross that road when I get to it. May end up going the route you did with modded Z hoses.

Thanks again,
Nick.

gs14racer

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446 posts

miami fl
2-26-2007

 « Re: Cooling system hoses question (npez)


i did dual -16 out the top and just a regular hose out the bottom, i would imagine for the top you could weld a bung onto the stock outlet and go -20.


npez



Offline

392 posts
1993 Nissan 300ZX Turbo (soon 2B twin-turbo 450ZX) 2002 BMW M3 2008 Honda Odyssey Touring (Mama)
Houston TX
8-30-2007

 « Re: Cooling system hoses question (gs14racer)


Your setup looks very slick I think AN won't work as well for me because my Howe racing radiator (I had bought it as part of the Z1 motorsports ultimate cooling package for my TTZ) has an inlet/outlet setup for clamped hose. So doing AN would require welding the now chromed parts (on the motor) as well as the radiator inlet/outlet.

I think I'll have to go with regular hoses (possibly Z hoses as Craig mentioned) and sleeve them for aesthetics. This may change as I put everything together, but I think I'm leaning in that direction for now.

If I had seen the AN option earlier I could've probably gone that route instead.

Thanks,
Nick.

T45



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1170 posts
King Kong powered Z32
va beach va
6-9-2006

 « 


I found another way to do it. I lol'd at this one...but hey...it works!

http://www.youtube.com/watch?v=A24zFeoYCn0

npez



Offline

392 posts
1993 Nissan 300ZX Turbo (soon 2B twin-turbo 450ZX) 2002 BMW M3 2008 Honda Odyssey Touring (Mama)
Houston TX
8-30-2007

 « Re: (T45)


Quote, originally posted by T45 »
I found another way to do it. I lol'd at this one...but hey...it works!

http://www.youtube.com/watch?v=A24zFeoYCn0


That is funny but functional.

Thanks,
Nick.

craigztoyz



Offline

708 posts
90 300ZX VH45 95 J30 90 rx7 lots of cars older then me.
Austin TX
1-18-2008

 « Re: Cooling system hoses question (gs14racer)


Quote, originally posted by gs14racer »
i did dual -16 out the top and just a regular hose out the bottom, i would imagine for the top you could weld a bung onto the stock outlet and go -20.

I loved running my car with no filter, and short pipe from intake to maf. LOUD and MEAN

craigztoyz



Offline

708 posts
90 300ZX VH45 95 J30 90 rx7 lots of cars older then me.
Austin TX
1-18-2008

 « Re: (T45)


Quote, originally posted by T45 »
I found another way to do it. I lol'd at this one...but hey...it works!

http://www.youtube.com/watch?v=A24zFeoYCn0


Ok, I dont feel bad now. I only have a few switches, and they are hidden, my hoses look GREAT next to those.

 

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