mellonman Posted January 10, 2014 Share Posted January 10, 2014 yes but with modification, the walbro 400 and 450 fit straight in Quote Link to comment Share on other sites More sharing options...
Noz Posted January 10, 2014 Author Share Posted January 10, 2014 Can't find a 450. Found a 416? http://www.supraforums.com/forum/showthread.php?683983-Fuel-Pump-Comparison-Bosch-044-vs.-Walbro-416lph-vs.-Walbro-255lph-vs.-Supra-Denso Comparison here of Bosch 044 against the 416 walbro Quote Link to comment Share on other sites More sharing options...
Nodalmighty Posted January 10, 2014 Share Posted January 10, 2014 (edited) im fitting the walbro 450 in mine too And me. It destroys the 044 for flow all the way up to 98 psi at less voltage and uses the latest twin turbine tech and it's cheaper. But the old 044 is still a good pump and was my choice until walbro got their act together. If you want a big monster fuel pump Aeromotive and a few other american manufactures have electric pumps that can support upwards of 1500bhp. Lyndon. Edited January 10, 2014 by Nodalmighty (see edit history) Quote Link to comment Share on other sites More sharing options...
pedrosixfour Posted January 10, 2014 Share Posted January 10, 2014 I went from a Walbro 255 to the Aeromotive 340 as listed in that comparison. Main reason being the new Walbro seized after about 6 hours of use! I like the Aeromotive design as it does away with the gear type pump in favour of an impeller and so far it has been faultless. I can't comment on the 044 as I'm not familiar with it. Quote Link to comment Share on other sites More sharing options...
mellonman Posted January 10, 2014 Share Posted January 10, 2014 Can't find a 450. Found a 416? http://www.supraforums.com/forum/showthread.php?683983-Fuel-Pump-Comparison-Bosch-044-vs.-Walbro-416lph-vs.-Walbro-255lph-vs.-Supra-Denso Comparison here of Bosch 044 against the 416 walbro http://www.ebay.co.uk/itm/GENUINE-WALBRO-450LPH-GST450K-IN-TANK-FUEL-PUMP-KIT-/281137603756?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item41751b64ac#ht_2237wt_1121 Quote Link to comment Share on other sites More sharing options...
Nodalmighty Posted January 10, 2014 Share Posted January 10, 2014 (edited) from what i can gather , the pumps will always run at full chat unless modified , ie the fuel ecu in the rear panel 9v idle and then 12 with any boost , this was done to stop the fuel heating in the tank , adding 2 or 3 pumps vs 1 larger pump , i gues the smaller pumps may not get as hot but may have some more surface area , best way to test maybe get some old stockers and the bosch 044 put them each in a bucket with water and a 12v feed for 20minutes and see how hot they get or the actual water gets how hot each pump gets would depend on windings and friction Nathan Freak had 2 external 044 on his MR2 Drag car and you couldn't touch the swirl pot after a couple of runs and that was with the return t'd back to the main tank. Mapped a 1k bhp R34 GTR V Spec skyline, same set up, same heat issue. MR2, 700bhp, single 044 on pump and C16, when swapping the fuel from one to the other it came out steaming. I had a 040 in my 650bhp MK3 Sup. Basically an 044 with a gauze bottom for in tank fitting. I fitted a fuel cooler (Mocal 25 row by 235mm rad) to combat heat on the return line. Now I didn't have to run any cold start as the fuel was so dense is compensated virtually perfectly during the warm up cycle. So even fuel coolers can cause weird issues (and they are not the safest of things either). Having a fuel temp sensor in the fuel tank would be a good idea and one I'm having built into the fuel cell for mine for the EMU to adjust the fueling as needed. Nissan 300zx and the Impreza had them as standard as do all modern diesels. Lyndon. Edited January 10, 2014 by Nodalmighty (see edit history) Quote Link to comment Share on other sites More sharing options...
JamieP Posted January 10, 2014 Share Posted January 10, 2014 Another option is a single Veyron pump, some of the GTR guys run them. Quote Link to comment Share on other sites More sharing options...
tooquicktostop Posted January 10, 2014 Share Posted January 10, 2014 Another option is a single Veyron pump, some of the GTR guys run them. Actually lot cheaper than I thought it would be Quote Link to comment Share on other sites More sharing options...
JamieP Posted January 10, 2014 Share Posted January 10, 2014 Actually lot cheaper than I thought it would be Good for the pub bragging rights an all Quote Link to comment Share on other sites More sharing options...
Gpro Posted January 11, 2014 Share Posted January 11, 2014 044 up to 700 bhp 2 x 044 for over 700bhp actual experience Quote Link to comment Share on other sites More sharing options...
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