Drillslinger Posted January 3, 2003 Report Share Posted January 3, 2003 What would be the benefits of fitting a 4 bar fuel pressure regulator such as THIS? And what would be involved in installing it? Thx, Link to comment Share on other sites More sharing options...
RobK Posted January 3, 2003 Report Share Posted January 3, 2003 I think you only need a higher pressure FPR if you need to get more fuel into the engine. Like if you had a bigger turbo fitted or something. I don't think it would make any difference if you just install it on its own. Link to comment Share on other sites More sharing options...
Drillslinger Posted January 3, 2003 Author Report Share Posted January 3, 2003 Do you think it would help once chipped? I plan on keeping the K03, for cost purposes, but want to get it chipped, and am adding the turbo intake pipe sometime in the next couple months. I guess the main reason is, it was only $70 and I've been looking for cheaper mods I can make until I can get'er chipped. Link to comment Share on other sites More sharing options...
GOLF GTTi Posted January 3, 2003 Report Share Posted January 3, 2003 It allows a higher line pressure to be maintained in the injector rail this in turn gives a greater fuel atomisation during the injection phase. Link to comment Share on other sites More sharing options...
Drillslinger Posted January 3, 2003 Author Report Share Posted January 3, 2003 OK, so what are the benefits in a semi-stock situation? If the fuel is atomized better, then doesn't that improve combustion? And wouldn't improved combustion give better fuel economy / a bit more power? I understand, that if it DOES improve the power, then only a minimal amount, but still? Link to comment Share on other sites More sharing options...
James_dj Posted January 3, 2003 Report Share Posted January 3, 2003 If you start upgrading further you will more than likely need to uprate your fuel pump also. Otherwise the correct pressure may not be maintained. Link to comment Share on other sites More sharing options...
Drillslinger Posted January 3, 2003 Author Report Share Posted January 3, 2003 Even if I'm only increasing the pressure 1 bar? The one shown is a 4 bar, and IIRC the std one is a 3 bar. Link to comment Share on other sites More sharing options...
XXX 1.8T Posted January 3, 2003 Report Share Posted January 3, 2003 I dont understand why A4 1.8T have 4bar FPP and A3 has 3bar FPP Link to comment Share on other sites More sharing options...
Drillslinger Posted January 6, 2003 Author Report Share Posted January 6, 2003 Huh?? That doesn't really make much sense to me. What, if any, is the difference between the A4 1.8T and that in the A3?? Thx Costa, you've managed to thoroughly confuse me now Link to comment Share on other sites More sharing options...
XXX 1.8T Posted January 6, 2003 Report Share Posted January 6, 2003 I spoke to Oettinger about this and they said a 4bar FPR does make a difference in performance (makes it a little quicker) but it also reduces fuel economy. The reason why A4 get bigger FPR is cos the engine is east/west design and the fuel has to travel longer through the pipes of the engine where the A3 it doesnt Hope this helps, and i may also pick up an A4 FPR too (as i think itb will be much cheaper than a ABD one) talk to Audi Drill and tell me how u go Link to comment Share on other sites More sharing options...
Drillslinger Posted January 6, 2003 Author Report Share Posted January 6, 2003 Excellent follow through Dude I wonder about how much an A4 FPR is from Audi? The ABD one above is about USD 70. How does the damned thing hook up to the fuel rail anyway? I took a quick look before, and it looks like a square shaped fuel rail, whereas the FPR has a rounded nozzle Anyway, thx again for the info Link to comment Share on other sites More sharing options...
Drillslinger Posted January 6, 2003 Author Report Share Posted January 6, 2003 Oh yeah, and what do you think, going from a 3 to a 4 bar FPR wouldn't necessitate a new fuel pump, would it? Link to comment Share on other sites More sharing options...
XXX 1.8T Posted January 6, 2003 Report Share Posted January 6, 2003 Oettinger never told me about the fuel pump so im sure it could handle 1 more bar speak 2 audi Link to comment Share on other sites More sharing options...
Drillslinger Posted January 6, 2003 Author Report Share Posted January 6, 2003 Gotcha, I'll ask when I get a chance. Problem is, by the time I get home, the parts guys are gone, so it might take a bit. btw, ever get the TT shifter? Link to comment Share on other sites More sharing options...
XXX 1.8T Posted January 6, 2003 Report Share Posted January 6, 2003 im getting it next week from vagparts.com for 12 pounds Link to comment Share on other sites More sharing options...
Drillslinger Posted January 6, 2003 Author Report Share Posted January 6, 2003 Yikes, paid I think 8 Euros for mine Then again, I don't pay any import costs Link to comment Share on other sites More sharing options...
r88per Posted January 6, 2003 Report Share Posted January 6, 2003 Sorry guys new to the site and owning an Audi for that matter- whats this about a TT shifter? Do they fit the S3? Thanks Link to comment Share on other sites More sharing options...
Drillslinger Posted January 7, 2003 Author Report Share Posted January 7, 2003 Actually, we were discussing something Costa found about a cheaper way to shorten the throw on 5-speed A3's. You simply replace the A3 linkage with that from the corespondind 5-speed TT to get about a 20% reduction in throw. I've done it to my A3, at the urging of Costa and it worked out quite well. I'm sure it's nothing compared to you S3 guys, but it made a difference in my car AND it was pretty cheap, not to mention a DIY fix Link to comment Share on other sites More sharing options...
Joshie Posted January 7, 2003 Report Share Posted January 7, 2003 Just picked this thread up - if I'd known I'd have saved myself the trouble of posting on the "other" site! Abt supplied me with a fuel pressure regulator with the uprated ECU some time ago. OCT in the states who have supplied my mate with a new remapped ECU have also recommended that he fit a 5 bar regulator. I thought the standard was 4 bar before reading this thread. I am still not clear about the performance or reliability benefits of this. Perhaps it is a question for one of the tuners. Link to comment Share on other sites More sharing options...
r88per Posted January 7, 2003 Report Share Posted January 7, 2003 Cheers Drill.. - could do with shortening the throw on the S3 - will have to have a look around the web, I'm sure someone must do one. Link to comment Share on other sites More sharing options...
Drillslinger Posted January 8, 2003 Author Report Share Posted January 8, 2003 Watch yourself though, I think putting the TT linkage into an S3 might actually lengthen the throw. Costa and I were discussing it as a cheap mod for A3's Link to comment Share on other sites More sharing options...
r88per Posted January 8, 2003 Report Share Posted January 8, 2003 Definately dont want that happening ! Just had a look on APR's website they do short shifters - but not for the S3. Oh and they're a bit steep in price (£279 for the S4) I think I'll live with the long throw for now. Unless anyone knows of an easier/cheaper alternative?? Link to comment Share on other sites More sharing options...
Drillslinger Posted January 8, 2003 Author Report Share Posted January 8, 2003 An option would be to look into how long of a throw the TT 6-speeds have. I DOUBT that it would be shorter than that of an S3, but if you know, or could find someone with a 6-speed TT, maybe they'd let you check it out. Also, look at www.neuspeed.com for the TT 6-speed short shifter, not sure of the cost, but it might be cheaper than APR's. Link to comment Share on other sites More sharing options...
XXX 1.8T Posted January 9, 2003 Report Share Posted January 9, 2003 Who said the TT is shorter than the S3 its not they both have the same gearbox its just that us A3/Golf guys have the same long gearbox and need to fix it. BTW heard B&M do some real nice ss kits for S3's Link to comment Share on other sites More sharing options...
r88per Posted January 9, 2003 Report Share Posted January 9, 2003 There's a guy at work with a TT, I'll ask him if I can have a look to see how long the throw is, might answer the question. If I get a result I'll post it on here. Cheers. Link to comment Share on other sites More sharing options...
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