Price is not astronomical if you run the smaller sizes. It will likely come down and you can try to catch it on sale as well. If it works for what i need it for then well worth it
im not getting a new tank. If it kills it as u say then it kills it. I'll be sure to report back when that happens. |
Originally Posted by SirLaughsALot
(Post 12205934)
Bear in mind, this isn't a fix-all product. The lifespan is only 5yrs and the price is astronomical.
If you're not on a budget and can replace yours every 4-5yrs, you're going to enjoy a great setup. Ohhh, and not e85 proven, yet. Lightly compatible, but not PROVEN. |
What kind of pump is everyone using with these? I'm assuming you need a pump that a fitting can be installed on the inlet. I think my Denso Supra pump just has a filter sock that pops in place with an O-ring.
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I haven’t measured the inlet yet but I was hoping I could run one of these in the stock location with a Denso pump. https://www.holley.com/products/fuel...s/parts/16-111 |
We're using that sock in a fully baffled and foam filled trapdoor tank with a walbro, can't imagine it being very submerged in the standard plastic bucket if much G is experienced. Someone has used this adaptor on the pump -
https://www.efihardware.com/products...-Extension-KIt with a Denso - slight modification req'd - and a hydramat over here successfully though. I think some Mitsubshi evo forum in the last couple of years had something similar shown from a vendor a bit closer and more convenient to you. |
Radium Engineering makes a better adapter for you, but again, these Hydramats are garbage unless you're changing them out every few years. They are also NOT e85 compatible...
Walbro E85 Fuel Pump Outlet Adapter |
Thank you both for the links. I had seen the Radium but think it'll actually be too deep into the tank. My existing sock had debris from the bottom of the tray on it when removed, so I'm hoping this will sit low enough to work.
I've tried multiple in-tank fuel slosh solutions and refuse to put a swirl tank in the passenger cabin, so if I have to buy a new $160 Hydromat every few years that's honestly better than some of the other things I have to do for this crazy car. |
Originally Posted by Smokey The Talon
(Post 12282713)
Thank you both for the links. I had seen the Radium but think it'll actually be too deep into the tank. My existing sock had debris from the bottom of the tray on it when removed, so I'm hoping this will sit low enough to work.
I've tried multiple in-tank fuel slosh solutions and refuse to put a swirl tank in the passenger cabin, so if I have to buy a new $160 Hydromat every few years that's honestly better than some of the other things I have to do for this crazy car. Home Page |
^^
Great product! I too would 100% buy the Coachman set-up if it was legal for my racing class. Nope, its stock tank or fuel cell with no reservoir/surge tank allowed for me. Any fuel filter is allowed though as long as it doesn't act as a reservoir, so... Hydramat. |
Originally Posted by BLUE TII
^^
Great product! I too would 100% buy the Coachman set-up if it was legal for my racing class. Nope, its stock tank or fuel cell with no reservoir/surge tank allowed for me. Any fuel filter is allowed though as long as it doesn't act as a reservoir, so... Hydramat.
Originally Posted by SirLaughsALot
Okay, I don't get it... Why aren't you supporting an Rx7Club legend and getting a proper Internal Surge Tank?
Home Page |
How to Order
Available for FC but I think it is a weld in application not the cnc bolt in like the FD. $495 You also need to purchase an external pressure pump for the Coachman set-up. |
Originally Posted by SirLaughsALot
(Post 12282769)
Okay, I don't get it... Why aren't you supporting an Rx7Club legend and getting a proper Internal Surge Tank?
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Did you have an issue boiling the fuel with the in-tank surge tank or what?
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Originally Posted by Smokey The Talon
(Post 12282883)
I've run an in-tank surge tank and wasn't happy with the results, so I'm going to give the Hydramat a try. It's also a much more simple solution which I'm in favor of.
It's the only swirl pot on the market that actually de-aerates. |
Originally Posted by BLUE TII
(Post 12282934)
Did you have an issue boiling the fuel with the in-tank surge tank or what?
Originally Posted by SirLaughsALot
(Post 12282977)
I'm going to say that Coachman (Elwood on this forum), knows exactly what he is doing and has done extensive testing on this. There are SO many knockoffs including Built2Apex which is inferior by design and doesn't create the small pressure head inside of the system to eliminate cavitation issues. What do I know though, I'm just a designer/engineer myself. There's a reason behind why I purchased every part on my car.
It's the only swirl pot on the market that actually de-aerates. |
Unless there's something weird there I'm not getting, that Radium piece is on the wrong side of the pump to fit the hydramat - you need it on the inlet side. Stock and 280 litre Denso only has only a couple of mm lip plus the locating tit for the star washer thing to hold the sock in place, 400 litre walbro petrol is similar....and the 460 ethanol must be the same, but memory of that is a bit rusty! I'd worry more about dirt and debris blocking the pores of the hydramat than worry about ethanol issues. The original poster's tank if he ran E85, I could see that causing problems, I'd be looking at a phosphoric acid slosh or some sort of mechanical removal of the surface rust before using in that situation!
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Originally Posted by billyboy
(Post 12283252)
Unless there's something weird there I'm not getting, that Radium piece is on the wrong side of the pump to fit the hydramat - you need it on the inlet side. Stock and 280 litre Denso only has only a couple of mm lip plus the locating tit for the star washer thing to hold the sock in place, 400 litre walbro petrol is similar....and the 460 ethanol must be the same, but memory of that is a bit rusty! I'd worry more about dirt and debris blocking the pores of the hydramat than worry about ethanol issues. The original poster's tank if he ran E85, I could see that causing problems, I'd be looking at a phosphoric acid slosh or some sort of mechanical removal of the surface rust before using in that situation!
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I have unintentionally :) buried the fuel gauge needle on track in my FD and have had no fuel starvation issues with just a little 3"x8" hydramat in the oem baffle. using a walbro400. ive been tracking it for 4-5 years now, with premix, no issues. imo no need for overly complicated solution
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Originally Posted by billyboy
(Post 12283252)
Unless there's something weird there I'm not getting, that Radium piece is on the wrong side of the pump to fit the hydramat - you need it on the inlet side. Stock and 280 litre Denso only has only a couple of mm lip plus the locating tit for the star washer thing to hold the sock in place, 400 litre walbro petrol is similar....and the 460 ethanol must be the same, but memory of that is a bit rusty! I'd worry more about dirt and debris blocking the pores of the hydramat than worry about ethanol issues. The original poster's tank if he ran E85, I could see that causing problems, I'd be looking at a phosphoric acid slosh or some sort of mechanical removal of the surface rust before using in that situation!
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2+ year follow up bump to see if there’s further consensus that premix is fine with their recommended several year maintenance replacement limitation?
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I've been using one for 2 seasons now successfully. I don't premix on the street and only 1oz/gal on track so not a ton of premix through it, but have not noticed any issues.
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So I had submitted the question directly to them about a month ago and never heard anything back. Was just on their website today and they now list them rated for two-stroke premix down to 20:1.
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