Since brushless fuel pumps have come down in price and become much more affordable, more people will probably be buying them for their high horsepower S2000s.

Instead of stuffing 2 fuel pumps in the tank, or adding an external surge tank, I'm going with the Holley VR1 12-767 Brushless fuel pump with controller https://www.holley.com/products/fuel...s/parts/12-767 The controller from Holley is a 2 stage controller, so it can be ran at a lower speed for normal driving, then at a higher speed when needed. The pump itself is the TI Automotive brushless pump.

The TI Automotive BKS1000 brushless pump http://21h1yp1945ct18r0ws184hb2-wpen...e-standard.pdf also has its own controller, but the difference is it will be running at 100% capacity all the time since it is only 1 stage.

There is a little information out there about the Injector Dynamics brushless fuel pump controller, but the only place I've seen it is from Radium Engineering. This controller looks to be the best, and I'm sure by far the most expensive, but if someone is looking for the absolute maximum amount of fuel from a brushless pump, this might be the way to go. Info here in their March 2, 2020 blog post: Blog

I'll be taking some pics of my setup once I start the install process. I plan on using the stock fuel pump hanger, but will modify it for -8an fittings and a -8an fuel line from the fuel pump outlet up to the fuel rail. Feel free to share your brushless fuel pump setup and info if you want.

 

I was going to go the exact same route. But after doing the math of what walbro 525s actually cost...It comes out to the same exact cost for the VR1 in a stock hanger VS a CJM dual pump hanger with dual 525s. The reliability, fit and finish would just be better overall with the 525 setup

 

Sounds like it's time for some vendors to jump on making retrofit kits for the stock hanger.

 

The CJM hanger looks nice, but they don't have a spacer for running dual 450s or 525s so you'll have to make one or rig something up. Also they told me their hanger doesn't work in my '05 S2000 because the AP2s have an 6 bolt flange versus the AP1 8 bolt flange. The '05 is the exact same as AP1 as far as fuel pump assembly is concerned.

I don't think it will be too difficult to get the brushless pump mounted to the stock hanger, but I'll find out soon.

 

I've looked at brushless pumps before. If I expected to exceed what a single 525 could do, it's likely the path I would take. I want a pump failure to eliminate all fuel, not eliminate only staged WOT fuel. Certainly that limitation can be mitigated via a decent standalone's protection circuitry.

While a brushless pump isn't in my current plans, I have a 600 watt 14" brushless fan on the way. Once it's in, I'll post a how-to.

Tim

 

Actually, they do make a spacer for dual 450/525s. You just have to ask them for it. The mounting holes are not drilled correctly for their bracket, so you'd have to redrill them. I guess that's why they don't offer it on their website. Also, 00-05 pump hangers are the same. The bolt pattern doesnt change til the 06+ returnles system. I have a 05 aswell.

 

Must be something new then. On March 30th they told me they had nothing for dual 450/525s, only the pumps listed on their site would work.

My Holley pump is on the way, hope to have it very soon.

 

So am I missing something?

525 (F285) pump is 90GPH at 90psi
This new brushless system is 105GPH at 90.... so 10-15 more gph….. which is fine... but we talking 15-20hp of fuel

I'm also comparing these around 6bar being most guys trying to run 900-1000hp are in the 40psi range.

SOO lets takes someone aiming for 1000+.... this system wont come even CLOSE... but a dual 285 setup.... will DEF get your there.

With a combined flow of 180GPH (685L) We talking able to flow enough for 1300hp ON ETHONAL at 6 Bar....

I didn't really compare prices.... but Dual 525s VS this pump is NO comparison... Unless i'm missing something lol

 

See how that works out in the real world and report back. Ain't happening. Your math is quite off on the hp those are going to support. Remember that to get to 1,300+ you are talking probably 60+psi of boost. Two 285's with decent wiring will just barely make 1,050-1,100 at best, and being at the limit of a fuel pump is a dicey. What happens when that voltage drops just a bit?

For what it's worth, the only brushless system that is going to really be revolutionary is the one we (Injector Dynamics) are working on. 19,000cc/min (300gph) from 40-140psi. It's taking a while because it's extremely complicated on the controller side. We have had one in my car for a year or so now at 1,100hp and E90, only at about 60-65% duty cycle. May try and go to methanol and 1,200+

 

Agree it will take a lot more boost..... so HP numbers will come down, BUT comparing two 525s vs one of these pumps....? I feel like your still getting a TON more fuel out the dual 525s.

I'm on dual 525s, making 900+ at only 70% Duty on E90 pumps seeing 90psi currently.