Because of the popularity of this option, Radium has been intgrating this pump into new product designs.Ī brushless pump always needs a controller. This helps keep fuel temps and electrical load on the alternator low. Brushless pumps creates a lot of flow without using much electrical power. This brushless pump system is a great option for high power vehicles. It is also not officially rated for use with E85, however historical data has shown that it does work fine with alternative fuels. This pump draws less electrical current, which helps keep fuel temps lower. These pumps are great for vehicles with lower power output. This tried and true option from Walbro is economical and effective. The size of these pumps mimics popular OEM fuel pumps sizing, so they can swapped into many cars without much work. These pumps flow 340LPH at 40psi and come in two heights. It even states this right on the side of the pump. We are often asked 'Because it is an E85 pump, does it work with gasoline?' YES! It is compatible with gasoline and alcohol fuels.

The pumps are made to AEM's exact specifications, which are the result of many hours of R&D and countless hours of testing. Their fuel pumps offer a lot of performance and value. This means that if fuel pressure exceeds this value, a valve will open on the pump and let out excess fuel to keep the pump from hurting itself.Īdvanced Engine Management (AEM) has been around a long time and is very well known in the aftermarket and motorsports industry. These pumps have a pressure relief valve setting of about 110-112 psi. The F9000285 is drawing considereably more current than the other pumps, this is where it's higher flow rate is coming from. The chart above shows how much current each pump uses when operating at 13.5VDC. This chart does provide a good back-to-back comparison of the pumps though. Also, as pumps wear in, they generally increase in flow rate. This is due to different testing methods and conditions. Note that our test numbers are not a direct match to what TI Automotive advertises. So only use the F9000285 if you absolutely have to in order to avoid excess heat going into the fuel. The F90000285 outflows the F90000274 by about 8%, but requires about 15% more electrical current (more heat!). In-house back-top-back testing of the three F90000-series pumps here at Radium Engineering resulted in the following performance curve: If you would like to use the F90000285 or F90000295, select the Radium product version 'pumps not included' and purchase the pumps you want to use separately. Radium Engineering only offers the F90000274 pre-assembled into products. The '295' does not have a check valve (hence the higher flow) so line pressure immediatly drops when it turns off and it cannot be staged with other pumps, but it works great as a lift pump. The '274' and '285 both have internal check valves, so they can be staged when using more than one in a surge tank or hanger. Ti Automotive has released many F90000-series pumps to the aftermarket over the years, but we are only going to focus on the three most popular: F90000274, F90000285 and F90000295Īll of the F90000-series pumps have the same physical dimensions and same electrical connector, so they can be interchanged with each other in Radium products.

part number, stamped right on the side of them, as shown below. Here at Radium Engineering we call these pumps by their official F90000. These names rarely have anything to do with the actual flow rate of the pump and often just cause confusion. These are tricky to talk about because many people use the unofficial slang names given to these pumps, such as the 'Hellcat pump' or the 'Walbro 450' etc. These gas/E85 compatible pumps have a stepped body and come in different flow rates depending on part number. Lets start with our most popular offering, the Walbro F90000-series pumps, officially called Ti Automotive 39/50 DCSS pumps. This article will describe each pump and provide information so you can choose the right pump (or pumps) for your application. We have chosen to offer the highest performing pumps from the most reputable companies. At Radium Engineering we design our surge tanks and fuel pump hangers around popular aftermarket fuel pumps from Walbro (aka Ti Automotive) and AEM.

Radium fuel system