I'm also looking for a new pump. Despite much cleaning thru the current one i'm not getting good pressure at higher revs. There seems to be few options available.
Has anyone used the American High Flow pump from Fuel Performance ?
Thank You
https://www.ebay.co.uk/itm/New-Intank-EFI-Fuel-Pump-Suzuki-GSX1400-2001-2007/121629207664?epid=19020514906&hash=item1c51aa6c70:g:aicAAOSwQttZxnwE:rk:2:pf:0
I installed a HFP-382SH-02. Don't know yet if that was good or bad. Bike certainly runs well. Afterward I looked at
www.highflowfuel.com and discovered that they have 2 models: HFP-384-U and HFP-382SH-U. The HFP-382S seems to have been superceded by the HFP-384-U.
The HFP-382SH-U has the following NOTE: This is a performance 255LPH fuel pump and not a stock replacement. Although it is the same size and dimensions as the stock pump, a 15 amp fuse is required. If you need the stock replacement, please search for HFP-382S.
Let's take a look at what my OEM pump performed after 60700 km.
A while back flow was 950 ml/30 seconds. After cleaning the HP-filter it was 1050 ml/30 sec. Fuel pressure was 41 psi at the most. I had made a mistake and not taken out the valve from one of the measuring hoses. So could not see if pressure was maintained at higher load.
I hooked up a current clamp and connected to an oscilloscope.
4687 RPM and 3.2 Ampere on Average. Expected was 5 Amps on average. The waveform looks crap.
The new HFP-382SH-02 has of 1800 ml/
20 seconds. In 30 seconds it would have overfilled the measuring cup. Fuel pressure is 48 PSI at idle and is steady under load. Average current draw is 9.74 Amps and RPM is 7938.
The waveform is good. It is upside down because I forgot to check the direction of the clamp.
It is a beefy pump. Sure have to take a look at the fuse and wiring as max current is 12.3 Amp. Also a heavy load on the charging system. Probably look for an S or U model.
