who makes them? is there anyone that makes them for a reasonable price? so far i've only been able to find these two:

http://www.rhdjapan.com/revoultion-r...fd3s-13b-14459
http://www.rhdjapan.com/auto-staff-r...-13b-rew-60333

but i thought there was a much cheaper version made somewhere, possibly by a company in the USA

can anybody else remember this or was i just dreaming that i seen this haha?

thanks,
Brad.

PS i want one for a system without an AST but i could easily modify one to suit if all that was available was the AST version.

 

bump? i see a-spec has something mentioned on their site with their gt42 turbo kit...

 

hrm i can make one of those for less than that....







some of my aluminum work

 

i'm not even sure why they felt that the FD needed a surge tank...

push and pull from the overflow bottle is fine for 99% of the cooling systems out there. some FCs had a remote pressure cap in the very front of the car that sat next to the reservoir, it works well as a pressure relief/suction device for the FD into the stock overflow bottle.

 

Brad,
I think the "outlet tank" that you linked to is for Japanese market cars that didn't have a two-piece neck like our North American versions.
For deleting the ASTs on our cars we just add the FC filler neck and (preferably) block off the line going from the neck to the bottom tank of the radiator. (See below)

 

two reasons.

1. the water pump is at the TOP. so bubbles affect the water pumps pumping

2. overheating is bad

getting the air out is kind of key, especially on an OEM setup where they want the engine hot. hot = better efficiency and lower emissions

 

Here's the thread for the A-Spec one...might wanna ask if he still makes them. https://www.rx7club.com/spec-tuning-154/t-stat-housings-602472/

 

Pandaz: thanks that was the thing i was looking for; unfortunately its both a) no longer available and b) no where near as neat looking as the jappo ones haha.

i am debating just making a custom on mainly to remove the stock thermostat housing as it seems to create a lot of air pockets. and cause everythign else in the engine bay is custom so why not lol.

 

the water pump is in the same location as it has always been on any rotary, just the FD spins in reverse direction. they just have more passages in it, seemingly unecessarily. they don't bleed air out any easier than any previous generation either.

overheating is bad, which is why the plastic AST was a horrible idea, a common failure point on even cars with only a few years of use. the crappy aftermarket thin wall replacements are no better because they have porous crappy welds or thin cap necks that warp and allow pressure to bypass as they get older. removing the cap a few times pulls the top up making it so they only hold a few psi before venting even with new pressure caps.

i'm not a big fan of the plastic second gen filler necks either, since hey have a tendency to bow up in the middle after a while, crack or leak when warped. a good aluminum replacement would be good, or if i could find the part number of the FC relocated pressure cap(i can't find it though, as if it never existed in the second gen parts fiches).

 

First time I ever heard of that. Have an example on hand or provide a picture ?

 

no, i generally don't save pics of cars i work on daily.

i worked on one last week that had a crack at the top of the neck where the top of the cap sits and was leaking externally, was also bowed up in the center from age.

not the first time i've seen the FC filler necks fail, the plastic extension pipes snap off if they're brittle and you look at them funny, they warp and crack. but i will say that it is still a much better alternative to the stock plastic AST housing that has a tendency to explode after they develop cracks.

 

i wish i had a nicer picture of this (and a more recent one) but here's my ast delete solution:



Brad.

 

Hi, Im working on a supply of these with a world known and respected company.

There will be three types in highly polished alloy. O.E.M standard mount/ Twinturbo Filler neck replacement/ Single turbo filler neck replacement..Price will be much cheeper than Rhd But quality will be as good if not better.

Dudesman on here will be getting a sample and i will post pics up when complete.then see if a group buy is of interest.


Rix.

 

edit

 

Try Universal Aluminum Coolant Breather Radiator Surge Tank on Ebay.
One has a cnc cut head for $50,
Greddy for $130.

 

Very interested! Time frame?

 

Im hoping within the next month, Ive been trying to get these made for a while now, And he has just received the mounting/stat housing pieces , so i can push him to get them made. Looking at possible rotor shape stat housing piece,

Should pick up my battery relocation kit monday, This will mount in the boot on existing mounting points so no need to drill. I will post up some pics so you can see the quality of the workmanship and materials used. And if people like, Iwill arrange a group buy on this.

Rix.