ESS Centri, have crank sprocket and OPG installed, JMS Bap. Was hoping to get close to 800whp on pump.
98 Octane, in New Zealand
With proper calibration and of pi/di split and assuming no cat overtemp on a gen 3 car with 1000cc injectors with a dw400 at 18 volts it will flow enough to support 800 rwhp on gasoline. The low side pressure will drop some but it will still maintain commanded a/f ratios. I believe your 98 octane is simular to our 93 octane, if that is the case I would not push over 720 rwhp on that grade fuel. I would also not run it at 21.5 volts with the jms.
That's a solid explanation thanks for that. So out of curiosity, on a DW400 rated for 400LPH would the venturi model actually be giving you around 360LPH as the venturi/siphon barb is using some of that flow off the 400? Like below
Be careful, your 98 and our 98 probably aren't the same. We use RON+MON/2.
Why spend all that money for power then risk blowing up your most expensive piece with no redundancy or proper fuel check. Spend the 1500-2k and protect a 20k rebuild, at the very least go with a road heavers setup if you just can't seem to come up with the extra money.
The hellcat pump draws more amps then the dw400 so it will run hotter as well creating more issues, with the bap ramping up the pump it will push against the standard preset regulator bypass creating a higher then stock psi then it will be chocked again by the plastic 90* outlet on the factory pump hat. There is a reason why the dw400 pump only flows marginally more then the stock pump does when it's installed in the stock basket, it's not the flow rating of the pump at all it's the rest of the setup. This is not speculation I've already tested it multiple times and with multiple pumps. Just trying to help you understand that something is only as good as its weakest link. You can have 3 of those pumps but running through the factory basket will greatly hurt their performance. Either way on straight gasoline you'll be ok flow wise. I hope this helps you understand and it works out for you.
Hey thanks for the info! The 535 draws less amps than the dw400 and hellcat, so shouldn't be a big issue on that side. Understand the hat limitation but and if it becomes an issue will probably change to a return set up with larger lines.
Thats not correct for the 535, many people think its just no check valve. The actual internals are different there's a bit of info out there The form factor is the same.
I've read in multiple places it's the same pump and I confirmed that with walbro about 1 year ago. Idk if anything has changed since then. Walbro has printed its amp draw and it's considerable also it says in that link you posted very simular amp draw to what I posted, also the dw400 was not tested there the br540 draws more then the 400 it's not just a rebadged 540 I believe the 400s siphon jet changes its characteristics.
The 267 is the low pressure version of their 500 lph series of pumps. The 274 is the high pressure (valve) version of the 267. The 285 is the high amp version of the 274 and the 295 is the no check valve version of the 285. They're all the same case size.