As far as I know when you use the collars etc they raise the injectors out slightly and some what out of the flow of air so not ideal but they work. Rob may be going to a pintless type to sit the injectors down lower in the plenum which results in a more even spray pattern. Thats the only reason I can think of could be way off though.
Maybe so but if using the sards Old style and collars that may have put them too high again. ANdrew is pretty methodical though so there would be a good reason whether its 100% needed is another question but he is thorough so I give him points for that
Yeah isnt it the old style for pre 94 plenums or something that you need the sard collars for then the later style 95 on series 2's that use the later pintle less injector and no collars for sards. At least thats what I always thought. mmmm interesting
Isnt that just the Nismo Injectors? I wasnt aware that SARD did the same, I thought they basically jsut produce one type and use collars to fit them to different fuel rails.
You might be right actually I think sard are all the same part number, will look into it tomorrow and see whats what.
Mate you are spot on with the the commenr re: ethanol and this is a choice I guess people will have to make. When I forward those avi's you will see the difference between stock (ie pintle type) spray pattern and the sard pattern. Keeping in mind mine is a "to the nth degree" kinda build I am going with the pintle style injectors on Andrew's reccomendation. Yes exactly pintle style sits down lower. Not the fault of the collars it's just an inherent part of the design. At the end of the day yes the sard would be more ethanol friendly but I'm not too concerned about that as my car is hardly daily driver material. Also correct, or at least lower than OEM rail or 300 degrees design. Still not as low as pintle type though. You are correct sir.
Videos SARD injectors in new rail Stock injectors in stock rail I must admit thats a huge difference in spray pattern, the stockies seem to produce a much finer mist whereas the SARDS seem to be just pissing fuel in. Are there pintle style injectors that fit the new rail? And would they perform as well?
Links work from here and home as well as a few people ive forwarded them to. Are you getting 404's? Make sure that your browser isnt loading them as lower case.
No 404, just the DNS seems screwed. whois says: Domain servers in listed order: NS1.BUR.ST NS2.BUR.ST NS3.BUR.ST NS4.BUR.ST NS5.BUR.ST The problem seems to be mainly in the fact that not all of these name servers (including the primary one) are answering queries for that domain: [z@collective][~] % for n in `seq 1 5`; do echo trying ns$n.bur.st; host -t a www.parkingdenied.com ns$n.bur.st; done trying ns1.bur.st ;; connection timed out; no servers could be reached trying ns2.bur.st Using domain server: Name: ns2.bur.st Address: 203.82.210.9#53 Aliases: trying ns3.bur.st Using domain server: Name: ns3.bur.st Address: 202.53.4.130#53 Aliases: trying ns4.bur.st ;; connection timed out; no servers could be reached trying ns5.bur.st Using domain server: Name: ns5.bur.st Address: 130.95.13.24#53 Aliases: In actual fact, none of them actually returned an A record, and some of them wouldn't even answer the query.
Sigh Looks like my hosting provider has broken their DNS. SARDS OEM Their DNS seems to be responding ok for their domain though...
Injector nozzles It looks to me like you might have been running the SARDs at a similar pulsewidth to that of the standard injector... Physically, it looks like the SARD is putting out a lot more fuel there in the video... I have flow tested my Nismo 555s and they do have a nice mist at low pulsewidths, but when you crank them up to 8ms it looks more like the SARD does in that video. What pulsewidth were you running them at? At any given pulsewidth, the SARD is putting out around 50% more fuel than the stock 370cc. This whole thing comes back to what people have known for a long time now... and that is that the newer style dual/quad nozzle injectors do have a wider spray pattern and also better atomisation than pintle style injectors. Unfortunately to take advantage of this wider spray pattern and atomisation, you need newer style heads and lower intake manifold. They changed the entire design when they moved to pintle-less injectors to compensate for the spray pattern of these injectors.
So.. group buy on newer style lower plenums... But in all seriousness can we get the older style machined up for this or do we need to get the newer style lower plenum
It's not just a matter of getting a newer style lower plenum... you need newer style heads too, or they won't match up. I've heard of one or two people in the states machining them both to account for the wider pattern, but it's a BIG job.
Interesting I wonder if there is another style of injector we can use to help improve the spray pattern in the older style heads.
For this reason and among others is why I am choosing to sell me 91 Built Engine and re build my 95 engine as it has the newer plenum and head design changes which should result in more power output potential, problem is finding people with the experience and know the differences between the two, somethign of which is more difficult than you think. However I hope to do a side by side comparison on my 95 and an 89 engine soon if the sale of my engine goes through. It will be interesting and hopefully confirm or disount a lot of info passed off as fact over the years. Is there any real major differences at all, I will hopefully find out
It is a fact that the heads/lower plenum are different on the later models... The port size is different such that the hole that the injector nozzle points out of is tapered to allow for the wider spray pattern.This has been proved many times with side by side comparisons on TT.net through the years. See this link http://www.twinturbo.net/net/viewmsg.aspx?forum=general&msg_id=873035&forum=technical&dtSearch=0
Cool might do a search again and see any keywords you can think of or remember that may help me out Cheers J
