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A fuse in my opinion is never a bad thing.

The restriction between the two is probably negligible. That is correct, the extra fuel flow is purposeful like you mentioned, to cool the HH.

Im sure you could find it cheaper, but for $12’ish bucks to my door I couldn’t complain. DC Voltage Regulator Buck Converter DC 24V to DC 12V 10A 120W Step Down Reducer Power Converter Mini Module Transformer...

Yes. I purchased a 24v to 12v (10amp) voltage regulator. I use it for the fuel pump, and also my boost and pyro gauge lights. Ill probably move the pump to its own regulator, then add some charging ports for phones/etc to the other.

I ended up changing to a Carter 4600hd. Almost the same specs but 12v. I chose the 4600 over the 4603 because of the slightly larger inlet/outlet. 3/8 vs 1/4”. https://www.jegs.com/i/Carter/180/P4600HP/10002/-1

Yep, I was mistaken haha What I had seen was the fuel rate at the advertised HP. I was way off haha *off topic, I live about 30mins from where these were manufactured!*

Only thing I can think of is possibly seeing an engine tag that says the fuel flow is 35/GPH. Now is that what the engine can burn at max RPM, or is that the supplied flow. That I do not know. Unless I’m mistaken. I’ll walk out to the garage for a pic…

Airtex claims on their site that it flows 35GPH.

Thanks, I did the same!

Hello, I know this is an old thread. But I see it mentioned that this pump has 3/8” inlet and outlet. Is that the hose size that fits the included hose barb? Or is it the threaded port size that is 3/8” npt? The one I received has 1/4” npt inlet/outlet ports and not 3/8”.