FD3S Single Turbo Build(Kinda)

dom187 · Post by **dom187** » Thu Aug 08, 2013 9:08 am

Does the fuel surge get worse with some pumps?

Gedge · Post by **Gedge** » Thu Aug 08, 2013 9:15 am

The bosche 044 is not designed to be an intank pick up pump and can be worse for starvation. I don't see what's wrong with a walbro personally. Yes they can be loud though.

dom187 · Post by **dom187** » Thu Aug 08, 2013 9:20 am

I dont think I will be able to hear it over the exhaust!

john B · Post by **john B** » Thu Aug 08, 2013 9:47 am

dom187 wrote:I dont think I will be able to hear it over the exhaust!

Or the BOV

RX7 · Post by **RX7** » Thu Aug 08, 2013 9:53 am

john B wrote:Or the BOV

Ha ha ha ha ha ha ha ha ha ha yep that is loud ! Definitely the 'chav spec' Dom was aiming for

I thought the Bosch 040 was the one with the starvation issues and not designed to be used in tank ? The 044 was ok for both internal or external isnt it ?

I guess it depends what flow you need, there is a calculator that should help..
http://www.maxcooper.com/rx7/how-to/fuel_system/calcs.html

Not against the Walbro btw. I guess it depends what sort of flow rate you need.

Gedge · Post by **Gedge** » Thu Aug 08, 2013 10:22 am

Lots of discussion about the 044 on fduk mate. People run it, but usually for a swirl pot setup and use stock pump as lift. Supra will be fine with proper wiring

dom187 · Post by **dom187** » Thu Aug 08, 2013 11:18 am

Well my plan is gonna be, get a different spring for the wastegate... something like a 0.8 BAR spring so I can least not worry about injector duty as the boost wont get high enough. I will also try and get the pump out, I honestly think a aftermarket pump has been put in as all the signs are there. I could see the screws had been already partially rounded and the clips had been moved. I will still check, but the thing that worries me is that the fueling issue is not due to having a stock pump.

I really hope I pull it out and its a stock pump as I can just bang in a uprated one, otherwise I will be having to trouble shoot what else could be causing it. I think I will replace the fuel filter as well to be sure.

Gedge · Post by **Gedge** » Thu Aug 08, 2013 4:32 pm

Redo the pump wiring direct to the battery mate. You know its been done right then. It's not hard you just need a relay

RX7 · Post by **RX7** » Thu Aug 08, 2013 4:38 pm

Good shout Chris, worth a check anyway. It's easy to check as its hidden in the boot compartment. Am sure I saw a relay there the other day but worth checking its all setup correctly.

After all it should be all I need to do with mine

Gedge · Post by **Gedge** » Thu Aug 08, 2013 4:40 pm

Yeah Gareth made a big difference on mine.