edmundu Posted May 10, 2007 Share Posted May 10, 2007 Fuel pump for an Sti & LGT are different. Only Avo makes a direct fit, but the other pumps can be made to fit. and of course there is always boost-a-pump! As for your other parts, I would seriously reconsider the Nismo 720's. At the very least, make sure your tuner is very familiar with them, as they are tougher to tune than other injector's. Not for max power, but for drivability. If you are confident in your tuner's abilites, then you'll be fine. Link to comment Share on other sites More sharing options...
HungHing88 Posted May 10, 2007 Share Posted May 10, 2007 just curious as to why NISMO 720cc is not good.. is it becuase of drivability or just not enough power. peace Link to comment Share on other sites More sharing options...
sutter2k Posted May 10, 2007 Share Posted May 10, 2007 Stay away from the perrin modifieds. They take the cap completely off causing inconsistant, nonlinear flow. Atomization is also comprimised. The Deatschwerks are the best Subaru injectors I've worked with to date with the Nismos being a close second. You can get a completely stock like idle, drivability and response with these injectors. The Helix 860cc and PE 850cc injectors are the same injector... just rebadged. While I've tuned many of these injectors and you can get the car running decently on them, once you tune with a great injector like the Deatschwerks or Nismo, you really don't ever want to go back to the PE/Helix... they're simply too laggy. The other nice thing about the Deatschwerks is that each set is flow tested/matched and comes with a flow sheet for each injector. Thanks -- Ed from thread http://www.iwsti.com/forums/showthread.php?t=84845&page=2 Link to comment Share on other sites More sharing options...
edmundu Posted May 10, 2007 Share Posted May 10, 2007 just curious as to why NISMO 720cc is not good.. is it becuase of drivability or just not enough power. peace These have very different latencies, and make tuning them more difficult. The DW's electrically are identical to stock, only the screens/tips are changed, to allow for more flow. So they are super easy to tune, whereas the Nismo's will need more work. Now if your tuner has tuned them successfully before, then you will be fine. If they haven't tuned on Nismo's, be prepared for multiple trips to him to get them dialed in if at all. Like I was saying, the injector's are very good, but you have to know how to tune them. Not all tuner's can, I personally know 3 prominent Subaru tuner's who cannot tune them, and I tried in vein as well. For 7 months, I had to live with crappy cold starts, misfire cel's, coughing spitting, bucking, and in general very inconsistent part throttle behavior. This was after having the brand new injector's flow tested, latency tested, and cleaned & balanced. So it was not an injector issue, but a tuning one. It isn't just me, I know of a few other's with them and have the same problems. I was just trying to help you out in avoiding these headaches while you still can change parts, w/o losing more time or $$$... Link to comment Share on other sites More sharing options...
HungHing88 Posted May 10, 2007 Share Posted May 10, 2007 thanks man Link to comment Share on other sites More sharing options...
SnoDork Posted May 10, 2007 Share Posted May 10, 2007 FYI, I have the Nismo Injectors for +30K now...idle is smooth, no codes... I HarmanMotive ~Sucka-Duck~ Link to comment Share on other sites More sharing options...
wavewagon Posted May 10, 2007 Share Posted May 10, 2007 I assume you already have the UP and TBE? CAI probably wouldn't hurt either with the 20g. FMIC may give you more consistent results when the temps get hotter. Link to comment Share on other sites More sharing options...
sutter2k Posted May 10, 2007 Share Posted May 10, 2007 FYI, I have the Nismo Injectors for +30K now...idle is smooth, no codes... I HarmanMotive ^^ yeah, but things are warmer there. My would be fine if it was summer all the time. Link to comment Share on other sites More sharing options...
SnoDork Posted May 10, 2007 Share Posted May 10, 2007 I have had the same injectors on when in mammoth, car buried in snow overnight...started up fine, smooth & steady... I guess i'd have to agree with Edmundu on this...it's a good piece of hardware, it just take a person well versed in tuning them to make them work... ~Sucka-Duck~ Link to comment Share on other sites More sharing options...
mattg Posted May 10, 2007 Share Posted May 10, 2007 Fuel pump for an Sti & LGT are different. Only Avo makes a direct fit... it's only direct fit if you order the whole basket assembly and pay the extra $46. otherwise you still have to grind down the 3 ribs to get it to seat properly. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.