LocostUSA.com

Yeah what i want is an expansion tank to eliminate the remote fill and recover tank.

Like this....http://www.speedwaymotors.com/Speedway- ... ,1840.html

Plumbed like this would be good too
http://vorshlag.smugmug.com/Vorshlag-Te ... 3178-S.jpg

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My build: http://www.locostusa.com/forums/viewtop ... 18&t=13096


You can build the most awesome thing in the world but at some point, an 80yr old man in a crx is probably going kick your butt on the track... don't ask me how I know.

In that case, you need to mount the expansion tank so 3/4 of its length is above the head. It is an air pocket.

The plumbing you link to is not the entire system.

I just noticed you have no cap at the front, so you need the expansion tank for pressure regulation. If you add the recovery tank, the expansion tank can be mounted like your link and the recovery can be anywhere you want, low and out of the way.

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Miata UBJ: ES-2074R('70s maz pickup)
Ford IFS viewtopic.php?f=5&t=13225&p=134742
Simple Spring select viewtopic.php?f=5&t=11815
LxWxHt
360LA 442E: 134.5x46x15
Lotus7:115x39x7.25
Tiger Avon:114x40x13.3-12.6
Champion/Book:114x42x11
Gibbs/Haynes:122x42x14
VoDou:113x44x14
McSorley 442:122x46x14
Collins 241:127x46x12

I was hoping to tee off the cold side of the radiator hose near the engine into the expansion tank, then to the turbo inlet and plumb the turbo return back to the block or radiator hot side.

_________________
My build: http://www.locostusa.com/forums/viewtop ... 18&t=13096


You can build the most awesome thing in the world but at some point, an 80yr old man in a crx is probably going kick your butt on the track... don't ask me how I know.

FYI the VW reservoir caps are pretty high pressure. I used one from a chev aveo which cost me ~$8 and has 17psi relief valve. Small as well.
Cheers.

_________________
Build log: viewtopic.php?t=9291

This would be his only cap. Around 13-17 psi would do nicely.

Heater hose connection points will provide flow or anywhere between the pump outlet (includes upper hose) and radiator inlet tank and the pump inlet (lower) and the radiator outlet tank.

Depending on the exact points where you tap in for the turbo water jacket, it will most likely bypass the stat, lengthen the time to warm up and reduce cooling effectiveness a small amount depending on the flow. You need some bypassing so if that was performed solely by the heater core circuit, then it will be essentially the same as oem.

_________________
Miata UBJ: ES-2074R('70s maz pickup)
Ford IFS viewtopic.php?f=5&t=13225&p=134742
Simple Spring select viewtopic.php?f=5&t=11815
LxWxHt
360LA 442E: 134.5x46x15
Lotus7:115x39x7.25
Tiger Avon:114x40x13.3-12.6
Champion/Book:114x42x11
Gibbs/Haynes:122x42x14
VoDou:113x44x14
McSorley 442:122x46x14
Collins 241:127x46x12

Hi Guys,
Came on to post a similar question today and spotted mjalaly topic. I bought a 1 1/2" Speedway Cast Filler Neck for $24 and it's a nice quality piece. Sounds like I have a related problem so will ask here that it may help all.
I need to reduce hose size from 1 1/2" (Speedway filler neck) to 1 1/4" upper engine neck size (on each end of filler piece). Have looked at the automotive/hose Gates type places for a short rubber reducer piece to achieve this. Have a piece of 1 1/4" O.D X .083 wall alum tube coming for radiator hose to Speedway filler as a back-up plan, but would like to use a rubber reducer on both ends with a 2" long piece of the tube on the radiator end only to attach to my existing hose. Does anyone know of a molded 1 1/2" X 1 1/4" rubber reducer? The NAPA store has a rubber sleeve that fits I.D of a 1 1/2" rad. hose to reduce I.D. to 1 1/4" This would work with a short piece of 1 1/2" hose on each end and connect hose to hose with 1 1/4" tube. Suggestions?
Thanks,
Don

Silicone hose can be used for coolant applications:

http://www.ebay.com/itm/1-25-1-5-3-PLY- ... a8&vxp=mtr

_________________
Miata UBJ: ES-2074R('70s maz pickup)
Ford IFS viewtopic.php?f=5&t=13225&p=134742
Simple Spring select viewtopic.php?f=5&t=11815
LxWxHt
360LA 442E: 134.5x46x15
Lotus7:115x39x7.25
Tiger Avon:114x40x13.3-12.6
Champion/Book:114x42x11
Gibbs/Haynes:122x42x14
VoDou:113x44x14
McSorley 442:122x46x14
Collins 241:127x46x12

I wasn't very clear about when an expansion tank is an expansion or tank or a fill point.
The wide flat tank in the photo is the same size as the vertical but can be much lower.
The size of the air pocket is determined by how much coolant is in the system.
Again, recovery tank can be anywhere.

_________________
Miata UBJ: ES-2074R('70s maz pickup)
Ford IFS viewtopic.php?f=5&t=13225&p=134742
Simple Spring select viewtopic.php?f=5&t=11815
LxWxHt
360LA 442E: 134.5x46x15
Lotus7:115x39x7.25
Tiger Avon:114x40x13.3-12.6
Champion/Book:114x42x11
Gibbs/Haynes:122x42x14
VoDou:113x44x14
McSorley 442:122x46x14
Collins 241:127x46x12

Nissan altima uses this, if this helps

Can you clarify this? Since the radiator inlet and outlet are right next to each other on the block, i was planning on just teeing off from both of those. Upper hose tee to expansion tank, expansion outlet to turbo inlet, turbo outlet to lower radiator hose tee. I can also feed the turbo outlet back into the block.
http://www.hondapartssales.com/lisle/js ... _e1512.png

I will also put a recover tank somewhere off the expansion tank.

_________________
My build: http://www.locostusa.com/forums/viewtop ... 18&t=13096


You can build the most awesome thing in the world but at some point, an 80yr old man in a crx is probably going kick your butt on the track... don't ask me how I know.

Most modern cars use a fill/expansion/pumpover combination unit mounted slightly higher than the head. The large fill pipe goes to the inlet side of the waterpump ( bottom hose or return path from one of the heater hoses), another pipe vents off the top of the rad and the third is a pump over that that can come from the other heater hose or top of the head/thermostat housing. This third pipe runs back to the bottle with a constant restricted flow ( normally a small brass restrictor pressed into the tank or pushed into the pipe ) . I prefer these over any of the other systems because its venting the system both on the closed stat side and the rad at all times.

Bob





And pretty if you want pretty

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Build Log viewtopic.php?f=35&t=16640&p=187700#p187700

Mancave http://s1116.photobucket.com/user/mypic ... ow/mancave

I'm with Bob. Just can't beat those ugly oem systems.

You can hook it up as you have described but the heater core fittings are ideal for this. In this situation with only the turbo jacket, a restrictor is not required but if running a heater core, open control valve, and the turbo jacket, a small restriction in the blue line is a good idea since the turbo jacket increased the flow. This can be as simple as a nut inside the blue hose.

_________________
Miata UBJ: ES-2074R('70s maz pickup)
Ford IFS viewtopic.php?f=5&t=13225&p=134742
Simple Spring select viewtopic.php?f=5&t=11815
LxWxHt
360LA 442E: 134.5x46x15
Lotus7:115x39x7.25
Tiger Avon:114x40x13.3-12.6
Champion/Book:114x42x11
Gibbs/Haynes:122x42x14
VoDou:113x44x14
McSorley 442:122x46x14
Collins 241:127x46x12

Yeah i was hoping to loop the heater hose tubes and run the turbo outlet back to the block with one of these fittings.
http://i210.photobucket.com/albums/bb16 ... 01copy.jpg

I think a flat tank would be best but i am nott really seeing a good place for and expansion tank at all.

_________________
My build: http://www.locostusa.com/forums/viewtop ... 18&t=13096


You can build the most awesome thing in the world but at some point, an 80yr old man in a crx is probably going kick your butt on the track... don't ask me how I know.

o.k. i have read all the above, Bob is on the right track, you need a closed system, in that you need an expansion tank with sufficent volume to cope with the cooling system at full temperature plus at least inch or so above the highest point of the cooling system

this tank should have a 3/4" hose from the bottom to a water jacket in the block or a heater hose.

it should also have in the top of the tank, a small inlet about 1/4", this should be fed from the top of the engine or radiator, which ever is the highest to allow steam or trapped air to vent into the tank, if the radiator and the block are both high, but the water has to flow down hill to get from one to the other, then a vent must be provided from both.

when filling the cooling system, leave the cap off the header tank to allow the water to fill the system and turn on the heater, when its full, start the engine and keep filling, now check the level hot, it probably will overflow, do not worry about this, its normal.

fit the cap, say a 15lb. cap, if you have a cap on the radiator then it should be at least 5lbs. higher than the one on the tank.

now the system is sealed up to 15lbs. of pressure.

the tank will probably have an overflow hose spigot next to the cap, leave this open, you may fit a hose to it to vent off any excess water to the ground, so that if the system boils or you overheat the engine, the water has somewhere to go or it will blow a hose off.

should you have an open catch tank for coolant to vent into, with an open lid, and you boil the engine, it will not contain the spill, and any decent scrutineer will not pass your car for the track.

i have come across this in NHRA, the answer was to fit a steel pipe into a primary header tube, just down from the port, this way the vented water is blown down the exhaust and vaporized so will not wet the track.

incidentally, with an alcohol dragster and zoomies, when the water starts to appear at the end of the pipe, its just the right temp to stage the car for a run.

here is my tank from Jegs

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this story shall the good man teach his son,
and chrispin chrispian shall ne'er go by,
from this day to the end of the world.
but we in it shall be remembered.

I will probably go At-om style and mount it next to the head

_________________
My build: http://www.locostusa.com/forums/viewtop ... 18&t=13096


You can build the most awesome thing in the world but at some point, an 80yr old man in a crx is probably going kick your butt on the track... don't ask me how I know.