New Product Release: Multi-Pump Fuel Surge Tank

Radium Engineering is proud to anounce the release of our newest product, the multi-pump fuel surge tank (MPFST). It is a ground-up new design that can accomodate up to three high performance fuel pumps.

All parts are CNC machined from 6061-T6 aluminum then anodized black for protection from corrosive fuels such as E85.


All  components have been weight optimized by removing extra material in the machining process. The bottom plate features integrated "feet" enabling it to mount on uneven surfaces such as a trunk floor. This surge tank is designed to be installed in a vertical position only.


All interfaces are O-ring sealed. The picture below features three internal Walbro 400 E85 pumps.


The surge tank can be configured with one, two or three pumps with a dedicated outlet port for each. Also, each pump has its own dedicated wiring so they can operate independently.


This MPFST is also compatible with other popular pumps from Aeromotive, AEM, Walbro and DeatschWerks. You get to configure it during the purchase. Each one is custom constructed for the order then pressure tested before being shipped.

The new MPFST is shorter (7.8" total height), but larger in diameter (6" diameter)  than our existing fuel surge tanks. The working fluid volume of this surge tank when equipped with two pumps is 2 liters.

The pump outlet ports are fixed at -6AN, however the other ports (surge tank feed and return) are sized for -8AN O-ring. -6AN, -8AN and -10AN adapter fittings are optional.

Pricing for this new surge tank starts at $499 (not including pumps)

Link to Radium Online Store: https://radiumauto.com/index.php?p=product&id=100&parent=0

Contact us for additional information.

How does a surge tank work? Check out our video:
http://www.youtube.com/watch?feature=player_embedded&v=ACEriGn0PKw

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Radium Engineering's Ultimate Fuel Pump Test

As part of our Fuel Surge Tank (FST) line, Radium Engineering carries various fuel pumps from select manufactures that differ in flow rates. Third party independent flow testing data on these pumps can sometimes be found with research on the web.  However, the data can be inconsistent between sources, presented in a way that makes comparison difficult, or may not exist at all.  This makes it hard to compare pumps directly. To remedy the issue we decided to do our own in-house back to back comparison test of all six fuel pumps we currently offer with our FST product line. This information would equip us and our customers with the knowledge to correctly choose a specific Radium FST.

The test measured pressure, flow rate, voltage, current draw, and sound level. The sound was measured in decibels (dB) using the sound level meter below...

For some customers building street cars, fuel pump noise is an important aspect. This test would give a good comparison between all the pumps.

Shown below are the six fuel pumps that were tested. All units were brand new off the shelf.

Top Row: Bosch 0 580 254 044 (External Pump), Bosch 0 580 254 040 (Internal Pump)
Bottom Row: Walbro F90000267 E85, Walbro 400 Gas, Walbro GSS342 255lph, Aeromotive 11142 340R

The flow test used a simple controlled orifice. The fuel pump line was restricted by the orifice until the desired line pressure was achieved and then flow was tested using a timed interval. The volume of fluid the pump output during the timed interval was measured to provide the volume per unit time (flow rate) at each line pressure.  As always, Mineral Spirits (specific gravity of .76) was used for the testing fluid. We are aware that there are more accurate (and expensive) ways to flow test fuel pumps, but this setup was adequate for us to compare the fuel pumps in identical test conditions. Also, note that these results should not be compared to other tests, since our test setup is inherently unique. So lets get to the results.


Flow Rate


Note: To convert to PSI, just multiply the Bar pressure by 14.5

The above chart shows the new Walbro 400 and Walbro F90000267 E85 have superior flow when compared to the others, even the "mighty" Bosch 0 580 254 044. One interesting note is that unlike the other pumps, the two Bosch pumps maintain flow level extremely well as pressure increases.



We generated this table as a rough guide to use when estimating the Horsepower supporting capacity of the fuel pumps. This guide is approximate and there should always be a built-in safety factor when selecting the pump.


Current Draw




Looking at electrical current, one can almost make the assumption that the more current the pump draws, the more it flows. The high flowing Walbro 400 pumps draw close to 20Amps at 6 bar! There are a couple exceptions to this though. For instance, the Aeromotive pump required more current than the Bosch 0 580 254 044, but flowed less than it.

The sound level was measured inside the main 5 gallon fuel container. All pumps were fully submerged in the testing fluid. The sound level (shown below) was the average of two readings taken at low and high pressure. Sound is highly sensitive variable and can be influenced greatly by the surroundings, this required extra effort on our part to maintain precise consistency during each sound measurement.



The Walbro GSS342 255lph takes the prize as the loudest pump followed by the Bosch 0 580 254 044. It is interesting to note that the highest flowing pump in the group (Walbro F90000267 E85) was also the quietest.
Keep in mind that many factors effect real world pump noise levels in the vehicle and are not reflected in this test. Also, while the Walbro GSS342 255lph was the loudest in this test batch of pumps, there are many aftermarket branded fuel pumps not included in this test that are considerably louder and do not flow much more, if at all.

So now lets talk value. A certain fuel pump may flow well, but if it costs 5 times more than one that comes close, what is the point? Below is a chart that shows flow per dollar. Note: We used retail prices for all pumps.



The chart shows that the Walbro GSS342 255lph gives the most flow per dollar spent. In fact, all the Walbro pumps show to be good value. Due to their high price, the two Bosch fuel pumps are not as good a value.


Conclusions


Walbro GSS342 255lph:

Excellent value and proven reliability in a small package. While the loudest of the batch, it is still an OEM quality pump so it is all relative. These pumps are used extensively all over the world and are "hands-down" the most popular in the aftermarket world.
Single Walbro GSS342 255lph FST
Dual Walbro GSS342 255lph FST

Bosch 0 580 254 040:
A low current drawing OEM Audi pump with a Bosch badge that offers consistent flow across a wide pressure range. Note: The low current draw will help keep fuel temperatures down. 

Bosch 0 580 254 044:
This age-old design used on classic Porsche and Ferrari still holds its ground quite well, but its high price and high noise level keeps it from being the best.
Dual Bosch 0 580 254 044-Horizontal FST
Dual Bosch 0 580 254 044-Vertical FST

Aeromotive 11142 340R:
This compact high-current drawing pump heated up our test fluid quite quickly, but also performed quite well and has a reasonable flow per dollar value.
Single Aeromotive 11142 340R FST
Dual Aeromotive 11142 340R FST

Walbro F90000262 Gas and F90000267 E85:

These new pumps from Walbro perform extremely well on all fronts; flow, noise level, and value. They set a new bar for flow from a compact package. Just make sure your wiring can handle 20A of current!
Walbro F90000262 Gas and F90000267 E85 FST




We hope this information will assist our customers when considering what pump to use with their surge tank.
Radium Fuel Surge Tanks

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Radium visits Formula-D Throw Down 2012

 

The Formula Drift series travels around the US with 7 events spread out over 7 months. June 21st, the series stopped in the Northwest at Evergreen Raceway in Monroe, Washington just outside of Seattle.
Radium Engineering has discovered that most drift cars have fueling issues and regularly deal with fuel starvation related problems. As a result, our Fuel Surge Tanks have become very popular in the sport.


We attended the event as a vendor and brought our Lotus Elise along as a display vehicle (it is not a drift car).


Friday, qualifying and practice day was overcast with a little rain.


Northwest local Walker Wilkerson says a prayer before a practice run, or maybe he was adjusting his helmet....


Rhys Millen warms up his tires before a practice session. There is no shortage of tires with a Hankook sponsorship.


Robbie Nishida fixed his previous fuel starvation issues with the recent addition of a Radium Dual Bosch 044 Fuel Surge Tank (horizontal mount) for his SC300.


Scion was on hand with a group of FR-S vehicles that were drawing a crowd.


Speaking of the FR-S, Ken Gushi is piloting this prepped 2013 FR-S in the Formula-D series. It is powered by a Cosworth 2.5L Subaru engine.


Local Kyle Pollard put down some clean runs in his RHD S13 Silvia. He uses a Radium Dual Bosch 044 FST (vertical mount) for his Tomei powered RHD S13. Kyle qualified and made the top 32 and put up a good fight but was beat by Matt Powers.


Car damage is part of drifting. Drivers and crews work frantically to make repairs between runs.


Justin Pawlak was looking solid in qualifying and practice.  Justin was leading the series in points, but was knocked out in the first roung against FD rookie Jeremy Lowe after a controversial call.


The fellas from Doc Race (a Portland-based fabrication team) check out this S13.


Lots action throughout the day.


Radium sponsored driver Andrew Coomes put down a couple runs at his home track. He solved fuel sloshing problems in the 2011 ProAm season after integrating a Radium Bosch 023 Fuel Surge Tank. Andrew just missed qualifying by a few points.


Defending champ Dai Yoshihara during practice.


The infamous Mike Kojima gives some coaching to Darren McNamara.

Back at the Radium tent, the Lotus grip car was drawing a crowd.


Our staff was available to answer any and all questions about our products.


Saturday was sunny and the crowd showed up in a big way. Tire smoke was the dominating fragrance.


The qualifyers from the previous night were getting as many practice runs as they could before the evening competition started.


Pit crews were busy frantically trying to keep the cars on the track. Michael Essa's BMW Z4 was damaged beyond repair from contact with the wall.


Justin Pawlak watches as the crew quickly replaces front suspension control arms after a minor crash.


The top 32 were widdled down to 16.


Robbie Nishida hit the wall early in the competition and was not able to continue competing.


Vaughn Gittin Jr. walked away with the win and is now currently first in the standings in front of Daigo and JTP.

Full Write up's on the event can be found here:
Speed Hunters

Formula-D Official Results

A'PEXi//A Lap with Pat Mordaunt//Formula D Seattle 2012//SullyLife from David Sullivan on Vimeo.

A New//Formula Drift Seattle 2012 Highlight//SullyLife from David Sullivan on Vimeo.

 

 




We had a great time at the event and were glad to see so many people. Will we be at the season finale in Socal? hmmm.....

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PSI Cruise-in 2012

 




Summertime in Portland means all the classics, street rods, race cars, show cars, project cars and garage queens come out from hiding. It also means the annual Summer Cruise-in at Portland Speed Industries our local dealer/distributor. PSI also incorporates an open house as part of the event, which allows everyone to roam the shop floor and see the latest creations and the works in progress. Radium Engineering was on site showing off our products and chatting with the locals.


The cruise-in attracts a very diverse mix of cars.


This Porsche GT3RS was a great example of a race car posing as a street car.


Taking in the super-clean SR20DET swap in the 1960's Datsun Roadster.


The FR-S/BRZ is a promising platform for tuning. At this event, we were able to closely examine under the hood of a few Scion versions. We have been anticipating these applications for the past few years and wil be designing parts in the near future.


Inside the shop, the public had the opportunity to examine five professional Formula Drift competition cars including: Daigo Saito, Robbie Nishida, Emmanuel Amandio, Andrew Coomes and Kyle Pollard. Kyle's red RHD S13 (front right) uses a Radium Dual Bosch 044 Vertical Mounted FST.

Daigo Saito's drift machine is is an example of a vehicle specifically built for pro-level competition drifting. He is currently sitting in second place in the Formula Drift series behind our buddy JTP.


Its powered by a fully built 2JZ Toyota engine with a massive turbocharger. But where is the radiator?


The cooling system is in the trunk. Cooling is a major issue since the cars are run extremely hard then stopped and they wait in line. There is no cool-down lap.  Each car has a creative way to reduce engine temperature quickly between runs.


Radium sponsored drifter Andrew Coomes was on site with his competition S13 LS2 powered drft car. This car sports a Radium Bosch 023 Fuel Surge Tank as well as a collection of other Radium parts.


Radium sponsored Robbie Nishida's Lexus SC300 drift car powered by another Toyota 2JZ turbocharged engine. To prevent fuel starvation, Robbie's setup utilizes a Radium Dual Bosch 044 Horizonal Mounted FST.


How about a Dodge Viper converted into a video game console?


This Supra show-car displayed stunning brushed nickel plating and was impossible not to stare at. In the adjascent room, there was a dyno exhibition going on including a 1500hp Mustang.


Light rain came and went, but the show went on.




Radium Lotus Elise on hand showing off the turbo kit and other Radium hardware.

Check out the Radium produced video from the event:

Thanks to PSI for another great show and we will be back again next year.

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Lotus Cup USA at Oregon Raceway Park

In an effort to promote the Lotus Cup USA racing series and build interest in the Pacific Northwest, event organizers hold a track day in the region once a year. Last year, the track day was held at PIR in October. Sporadic rain dampened the event but everyone still had a good time. This year, after encouraging organizers to schedule a date earlier in the year to avoid rain, a date in June was chosen along with a new venue. Oregon Raceway Park is a newly built private track located 2 hours east of Portland, Oregon. It has been called “the most technical track in the nation” with 16 turns in 2.3 miles with an abundance of elevation change.
As for the weather, this turned out to be the second wettest June in recent history.


We arrived early to set-up. The weather looked like it was going to clear and we were anticipating a nice day at the track.


Radium is an official sponsor of the Lotus Cup USA series. Since this day was not a competition event, it was an open track day to help promote the series. Hopefully, one day we will have a Northwest Lotus Cup USA competition event.


Of course, our Elise was prepped and ready for a day of abuse. We now run E85, which is an excellent, affordable alternative to high octane racing fuels. We burned through about 10 gallons in 35 minutes of track time. With the Radium Fuel Surge Tank, we don't have to worry about the fuel level until we are almost on empty.


Looks odd without a gear shift lever...
We had the opportunity to talk with Washington driver Mike about his "flappy-paddle" 2005 Supercharged Elise. The conversion uses a sequential transmission with special adapters and control circuitry.  He performed the installation himself with help from EliseParts.com.  Mike experienced engine troubles the previous day and was not running in the Lotus Cup USA group.

Park Place Limited, a Lotus dealership from Washington, brought down a few cars to excercise at the track.


We installed the light weight wheels with slick tires for the track day.


Later in the morning, after the first session, the sky started looking a little ominous.


Within minutes, the sky unloaded a fierce storm of heavy rain, hail, and crazy high winds. The Radium tent was a popular place for shelter.


After roughly 15 minutes, the rain stopped and we emerged from the tent.


We had an early lunch and waited for track to dry out. The local fire department saved the day by hosing the mud off the track.


K.P.'s S1 Lotus Elise with Honda K20 powerplant. This was a very well put together and fast car.


With the track dry, the cars went back at out. Kris volunteered to mow some grass (picture above, video below) with his matte black Exige S260.



Portland native Dylan Pollock (above) and father David Pollock are ORP regulars.


CLNW member Travis from the Portland area made the trek out to experience ORP.
The track's learning curve is steep with lots of elevation changes and "white knuckle" moments.


This GTR muscled its way around the track with unbelievable fast times..


Stephen in his safety-green Elise was also new to the track.



The afternoon granted perfect weather and everyone was able to enjoy plenty of track time.


The Radium Elise performed flawlessly and was a blast on this tight track.


David Pollock is his 2006 Cup car.


Lotus Cup USA held an impromptu time-attack event at the end of the day.  John walked away with the best time in his 2008 Elise SC.


Everyone had a great time. We look forward to coming back again. Thank you to Lotus Cup USA for visiting the NW!

Please visit Lotus Cup USA to see the complete 2012 schedule of events. Support the series!

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