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01-19-2018, 12:49 AM | #1 |
Scooby Specialist
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Join Date: Dec 2016
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Vehicle:1998 JDM Impreza STi V4 GF8 White |
Replacement fuel pump
The fuel pump has failed in my '98 JDM Impreza STi, so after reading a lot of threads in a lot of forums, there seems to be a difference of opinion in regards to which Walbro would be the correct replacement... the GSS341 or the GSS342. The bone of contention is the location of the inlet in relation to the outlet. Several people have posted that the incorrect pump will result in the inlet being on the "wrong" side in respect to how the filter sock sits in the tank. This image below shows the difference between the two pumps.
So I pulled my pump today, looks original... and the outlet is smack dab in the middle on the top of the pump. I see no difference which of the two Walbro pumps could be used. With either one, the outlet at the top is going to be offset by a half inch or so (no big deal)... and the inlet/pump bottom can only go into the mounting bracket one way, so the filter sock will be sitting correctly in the tank no matter what. And the same 400-791 wiring/installation kit is used with both replacement pumps. So, I don't get it... what is all the confusion about in regards to which replacement fuel pump to get for an older JDM WRX/STi... the GSS341 or the GSS342? They both appear to be able to fit. Am I missing something?
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Last edited by Vancouver98STi; 10-24-2020 at 03:02 AM. Reason: Replaced missing images |
01-19-2018, 09:01 PM | #2 |
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Why not a DW300, or even a DW200? The DW are quieter pumps overall.
Your original pump looks like the huge one that came in my 95 usdm 1.8L. If your original is indeed the large diameter type, it won't matter which of the two you choose, since their diameters are decreased. You would likely be picking the one that has inlet and outlet on same side, with the connector side closer to the bracket though. The 341 seems to be the orientation that is chosen on the other forums. I'd recommend the Deatschwerks in the same orientation over a walbro. The DW200 is also a 255lph pump. Just remembered I have a DW200 I ran in my 2.5i for around a week then put the oem back. Last edited by 2slofouru; 01-19-2018 at 09:18 PM. |
01-20-2018, 07:26 AM | #3 |
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my solution was to orient the pump correctly then put a hose clamp around it to secure it
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01-20-2018, 08:16 PM | #4 | ||
Scooby Specialist
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Join Date: Dec 2016
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Vehicle:1998 JDM Impreza STi V4 GF8 White |
Quote:
Deatschwerks fuel pumps appear to have a good reputation, but I've also been reading up on pumps from HRC. It's possible they're not as well known on this side of the Atlantic, but reviews are quite favorable and prices are very competitive. Quote:
Thanks for the feedback guys. |
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01-21-2018, 04:26 PM | #5 |
Scooby Newbie
Member#: 29145
Join Date: Nov 2002
Location: Woking, home of Mclaren
Vehicle:1998 Version 4 STI White, gold wheels |
I like HRC. I had one that died after about 5-6 years (maybe more) soon after I almost ran the tank dry. It had a good innings. That was a 320lph model that I got tuned on. I actually had a Walbro that was nearly new at the time but the tuner (in England) told me he didn't trust Walbro as there were some fake ones around then.
Anyway, when I had a problem HRC gave me some worthwhile feedback and suggested I get a 290lph replacement as it would probably be more reliable and more than sufficient for me with only 339 crank BHP (I was set to buy a 340lph one). It was a very good price and I bought it direct so I know it wasn't a copy. Car is back to working well again (especially for 20 years old and doing 400 miles a week most of the time the last 6 months). |
01-21-2018, 05:23 PM | #6 | |
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Heh heh... that expression certainly gives you away as a Brit.
Quote:
Was there any confusion at all in regards to the required installation kit (wiring connector, filter sock, etc) that comes with the HRC pump? Simply plug and play? . Last edited by Vancouver98STi; 10-24-2020 at 03:05 AM. Reason: Replaced missing image |
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02-13-2018, 08:59 AM | #7 |
Scooby Newbie
Member#: 29145
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Location: Woking, home of Mclaren
Vehicle:1998 Version 4 STI White, gold wheels |
Sorry I didn't reply sooner, saw your reply but was busy.
What I had already done was to cut the connectors and do some crimping to connect to my Walbro pump. When I switched to the HRC I think it was plug and play. But the way the original Version 4 pump is connected you have to cut wires to connect an aftermarket pump. When I put in the second HRC pump I realised the crimping I had done wasn't that great. This time I twisted the wires together, soldered them (just a little bit), and used a heat gun and shrink wrap over the top. In my opinion it's well worth doing that. Your car looks nice. Mine's white with gold wheels too, but it's a sedan. |
02-13-2018, 04:36 PM | #8 | ||
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Quote:
Does the HRC pump meant for our cars not come with a connection/harness that will simply plug into the factory fitting indicated below? I ordered the HRC pump from the UK, and it arrived in just a week at my US shipping address just south of where I live on the west coast of Canada... which I thought was pretty quick. I haven't picked it up yet, which is why I'm not 100% clear what type of wiring harness it's come with. Quote:
. Last edited by Vancouver98STi; 10-24-2020 at 03:07 AM. Reason: Replaced missing image |
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02-13-2018, 05:32 PM | #9 |
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What I meant was, I had already had to cut the wires and make crimped connections to accomodate the Walbro pump I had installed before the first HRC. Neither the Walbro nor the HRC comes with a harness that plugs into the factory fitting at the position indicated. You have to cut the red and the black wire and join them to the wires coming out of the new pump. This is best done, in my opinion, by twisting the wires together, then soldering, then shrink wrapping the join (having slid the shrink wrap into position earlier). The first time I just made a joint by crimping, but it 'only' lasted about 8 years. BTW my original pump looked the same as yours when I switched it. I'm trying to remember, but not certain. I don't think you need the chip with the green wires coming from it with your new pump. Perhaps someone else can confirm? Good luck, pulling out and reinstalling fuel pumps is not much fun in my experience.
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02-13-2018, 06:16 PM | #10 | |
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Vehicle:1998 JDM Impreza STi V4 GF8 White |
Quote:
Actually, pulling the fuel pump on these cars is a breeze compared to a lot of other cars. Many of them require the gas tank to be dropped. My Subie wagon is so easy... just pop the hatch behind the folded down back seat, and remove the pump while sitting in the car. Piece of cake! |
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02-17-2018, 02:58 PM | #11 |
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I have the dw200, been going for 3 years. Had 1 problem not starting , but it was caused by a burnt ground pin on the connector on top of the fuel pump. I had to remove the black relay and wires because the dw300 came with its own harness, did you have to remove those for the HRC pump?
Last edited by mrgf8sti; 02-17-2018 at 03:07 PM. |
02-20-2018, 09:14 PM | #12 | ||
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THIS is what I bought. I finally crossed the border and picked up the HRC fuel pump which had been delivered to my shipping address in the States... as it was cheaper to have it sent there than here to Canada, and I had other items to pick up across the border anyway. It only took a week to get from the UK to Washington State. I thought that was pretty good. Prior to my order, there seemed to be some confusion in my correspondence with them regarding which side the inlet was going to be in relation to the outlet. I ended up being sent the offset model, which is fine. However, it surprises me a bit that there is absolutely no indication on the pump which version it actually is... as there are 255, 290, 310 and 340 LPH versions. All it says on the pump is "HRC Performance". The fuel strainer is also a little piddly thing (compared to the original OEM strainer), and it doesn't look at all like what is described in the eBay blurb... "This listing is for a Subaru Impreza Specific kit, the Type A filter sits lower in the tank than other manufacturers filter, unless you purchase a specific filter. The filter supplied is a type designed to sit properly in the fuel tank and dramatically reduces fuel starvation when cornering hard on low fuel." And again, no identification at all on the filter/strainer. And the supplied wiring harness is not plug & play. It'll need to be spliced/soldered into the original fuel pump harness. Also, no instructions of any sort supplied... and nothing posted at their website regarding installation in a Subaru. I'm not sure what to do with the black relay thingy that's wired in with the original fuel pump. I know this isn't rocket science, but geez... no instructions at all? I've sent an email to HRC Performance. I'll post their response. . Last edited by Vancouver98STi; 02-21-2018 at 01:42 PM. |
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02-20-2018, 10:56 PM | #13 |
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Just swap it for a DW200 and subaru specific install kit, then solder the top half of the oem harness to the bottom half of the harness that comes with the DW200, unless it comes with a direct plug and play harness. I would prefer the correct 45 degree filter to prevent starvation and keep it low, seems like the one they sent is universal. The DW pumps come etched with part number so there is no guessing, and their site has comprehensive information as to their flow and current draw. This kit https://www.ebay.com/itm/DeatschWerk...daVbmX&vxp=mtr but obviously there are several sellers. Deatschwerks is a quality company and doesn't rebadge chinese crap parts like many sellers.
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02-21-2018, 01:18 AM | #14 | |||
Scooby Specialist
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Join Date: Dec 2016
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HRC Performance is better known on the other side of the Atlantic. Their reviews have been more than favorable. Here's hoping their response to my email is positive. [EDIT] Here's an image I found online showing basically what HRC sent me (although as previously mentioned, the pump I received has an offset inlet/outlet). Notice the puny filter/strainer. It's about 2x2" and does not extend down from the pump at all when attached. Last edited by Vancouver98STi; 10-24-2020 at 03:09 AM. Reason: Replaced missing image |
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02-22-2018, 04:25 AM | #15 |
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There should be no problem reusing your original filter, if its still in decent shape. When I had my 2002 WRX in the US that was what was recommended when switching to a Walbro. I think Subaru put a lot of effort into these JDM STI cars, so the original parts look (and are) very good compared to most aftermarket parts. Andy Forrest's site in the UK recommended upgrading the fuel pump on practically every Subaru model as a first step (before even mapping the stock car), except for the V3/V4 STI cars. So he thinks the original fuel pumps were good for 300 crank horsepower.
I expect you will be pleased with your pump once you install it. I don't really believe a filter that goes deeper in the tank is going to help much when it comes to fuel starvation when cornering. I would think that there would not be much benefit. Air would get sucked in. One thing that happened to me, was that I made a mistake and filled the entire tank with diesel by accident. That was awful, but at least I didn't start the car before I realised. The man who pumped out the diesel for me had to open the second hatch opening on the fuel tank (the one you don't normally open to remove the pump). He found there was some dirt/sludge in there and got rid of nearly all of it for me. If you have a way of doing that I would recommend you do. I don't know how dirt could have got in there on my watch (nearly 10 years of 99 octane Shell), but it was there and could not be a good thing. PS I have no connection with HRC whatsoever. |
02-22-2018, 04:10 PM | #16 | |||
Scooby Specialist
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I emailed HRC 48 hours ago with my concerns about what they sent me. No response. I'm not impressed. |
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02-25-2018, 06:43 PM | #17 |
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02-25-2018, 06:57 PM | #18 |
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So they called China then? Their site seems kind of shoddy, like a random guy importing loads of pumps from China and taking photos on his kitchen table. If the pumps at least have the brand name and model etched into them, there is some credit due, but when you call it one thing then send out a pump that's generic and universal, that's not cool.
Walbro and Deatschwerks pumps are all etched (laser maybe) with the brand, model number, and serial number of the pump. Last edited by 2slofouru; 02-25-2018 at 07:03 PM. |
02-25-2018, 09:21 PM | #19 | |
Scooby Specialist
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Quote:
If I'm put directly in touch with the owner of HRC Performance, perhaps I'll give him a link to this thread to address the concerns raised here. |
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03-01-2018, 06:10 PM | #20 | |
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I cannot believe how totally inept the customer "service" has been from HRC Performance. They've obviously gone way downhill after such positive reviews back in 2012. I'll be spreading the word on various online Subaru forums. There's no point having anyone else experience this nonsense if it can be avoided. . Last edited by Vancouver98STi; 03-01-2018 at 06:25 PM. |
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03-02-2018, 10:15 PM | #21 |
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I have now been put in direct touch with Rob Eyre, the owner of HRC Performance... and yes, I gave him a link to this thread. He genuinely seems anxious to resolve my concerns. I shall report the outcome of our discussion.
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03-23-2018, 07:40 PM | #22 |
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Man oh man... this odyssey has been going on and on. Unbelievable. Finally, late last night, eBay customer service refunded the entire purchase price.
Full details will eventually follow... once I figure out how best to re-use the original fuel pump filter/strainer and rubber mounting pad with this aftermarket pump. I suspect they can be made to attach securely, but it'll take a bit of finagling. |
04-11-2018, 10:22 PM | #23 |
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My experience with HRC Performance was bad, very bad. Despite numerous promises from company owner Rob Eyre, I never did receive the "Subaru Impreza Specific kit" that was supposed to have been included with the new fuel pump. After weeks and weeks of being dicked around by them (and all this time with my STi not runable), I finally had to ask eBay to step in. I explained how right from the get-go, communicating with HRC Performance was absolutely pointless... nothing was ever accomplished. After reading of the BS that I had endured for weeks, and the fact that I finally had to make do without the proper installation kit, eBay granted me a full refund. That was great... but seriously, I would've preferred to have gotten what I paid for in the first place and not received any refund whatsoever.
I ended up reusing the original fuel pump filter/strainer (which fortunately was still in good shape), and I also reused (with a slight modification) the original rubber mount at the bottom of the bracket. The only item I used from the generic installation kit that came with the pump was the wiring plug/pigtail which needed to be spliced into the original fuel pump wiring harness. So... here you can see the equivalent of a Walbro GSS-341 mounted on the bracket. I didn't need to bend anything. An offset inlet/outlet fuel pump seems to line up best on the mounting bracket of my v4 GF8. I have to wonder if the mounting brackets on other versions of the GC/GF are a little different... which might explain why some people have insisted that the in-line inlet/outlet (GSS-342) fuel pumps fit their vehicles better. And here's the whole shebang ready to be installed (with the original fuel pump alongside for a size comparison.) I took lots of other pictures. If anyone needs any further clarification regarding this installation, just ask. [EDIT - April 20th] Today in the mail came a small shipping envelope from HRC containing the Type A filter that was supposed to have originally been shipped with the fuel pump. It was exactly two months ago today (February 20th) that I first informed HRC that they had sent the wrong filter/strainer. I can see on the envelope that they mailed this filter on March 5th, 13 days after I had first told them of their mistake. And why it then took a total of 59 days to get here, who knows. Interestingly enough, I got a second package (also containing a car part) in the mail today... this one from the States... and it took a total of only 9 days for that package to get here. . Last edited by Vancouver98STi; 10-24-2020 at 03:15 AM. Reason: Replaced missing images |
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