Before you junp on the DSM 450 injecter bandwagon please read

Post by **PacManVR4** » Mon Mar 01, 2004 7:24 pm

I forgot to tell you guys that your gonna need to machine the fuel rail a little larger. Its gonna be simple to do and should not be expensive. Take into caount that 450s should be about all you t28 guys need. DSM 450s can be had for about 30 bucks and under and RX7 turbo 2 550s can be had for around 100. Hope this helps and is a great FYI. Think of it this way you can have enough fuel for under 100.00 bucks for a t28 or little more if you want to play it safe and have them cleaned. And BTW this also goes for the evo 510s and 540s. The Evo 8s have twin pintle 510s or 550s (cant think, Its kinda late) if you wanted to go that route. Cleaned T2 550s are the best bet for the money and they keep you away from the RC/Lucas crap for a lot less.

Post by **iliketocrash** » Mon Mar 01, 2004 7:24 pm

what exactly is involved in "machining" the fuel rail larger?

Post by **quest** » Mon Mar 01, 2004 7:24 pm

I mentioned in a post a while ago, that I couldn't get dsm/rx7 injectors to 'easily' fit my ca rail (just as I read on uk site)... didn't seem like anyone else had a prob

Post by **cuzan0** » Mon Mar 01, 2004 7:24 pm

i was using 460cc injectors from a N/A Rx7 and now i am using 550cc injectors from a rx7 and i didnt machine my injector rail,but they do fit a bit tight,but with some vaseline they will fit nicely into the rail.....

Post by **Nismo1182** » Mon Mar 01, 2004 7:24 pm

Anyone know if Mk3 Supra Turbo injectors work? And what CC are they?

Post by **slw240sx** » Mon Mar 01, 2004 7:24 pm

440s and yeah they do work.

i gots some 450s for sale from a talon, im gonna need somthing bit bigger now!

Post by **iliketocrash** » Mon Mar 01, 2004 7:24 pm

sooo that doesn't really answer my question. can i get the dsm injectors to fit w/ out modification or not? and while i'm at it i've got one more question. would the 450's be a good size to use with a ball bearing t28?

Post by **Nismo1182** » Mon Mar 01, 2004 7:24 pm

They wont fit without modification.

And do the supra ones drop right in?

Post by **slw240sx** » Mon Mar 01, 2004 7:24 pm

my 450s dropped right in... ill check again thurs when i go work on her finally.

supra drop right in too.

yeah 450s plenty for the t28

Post by **PacManVR4** » Mon Mar 01, 2004 7:24 pm

RX7s fit fine, I just checked. The DSMs on the other hand dont seem to want to go in without a fight. As for the maching I was talking about the fuel rail outlet where the injector slides in, Its a tad 2 small. I *think* you *might* be able to smooth the plastic down on the top of the injector or you can just have the outlet made a little larger. But I dug through my pile of injectors and the RX7 550 slid right in, Thats what I get asuming it wouldent work just becouse DSMs are a tight fit. Liek they say about asuming making an as-s out of me and you.

Post by **boost_boy** » Mon Mar 01, 2004 7:24 pm

I installed my extra RX-7 550s on a customer's SDS equipped, CA18 powered 240 and they fit in with no dramas. Tuning them was pretty simple as well. The best bang for the buck is the RX-7 injectors hands down.

Dee

Post by **Loofee95SE** » Mon Mar 01, 2004 7:24 pm

ok, so 550s from FCTII fits, that's confirm. but! how about the harness??? do we need the harness to?? i have a set of Injector around here from my FC. but want to confirm about the harness, my Ca will be here in 2 weeks, and T28 will be the 1st turbo upgrade for me. I already have Apexi AFC to control the injectors ( yank it out from my FC hahahah)

Post by **r34 gtr** » Mon Mar 01, 2004 7:24 pm

or if you want another one i could sell you my almost brand new safcII... looking for about $240 maybe? anyone? but yeah, i looked and the rx-7 tII injectors are the best for the money. looks like im going the lazy msd route though, haha.

- tim

Post by **boost_boy** » Mon Mar 01, 2004 7:24 pm

Quote »do we need the harness to?? [/quote] Yes, you will need the harness for those purple top ones.

Dee

Post by **iliketocrash** » Mon Mar 01, 2004 7:24 pm

r34 gtr wrote:or if you want another one i could sell you my almost brand new safcII... looking for about $240 maybe? anyone? but yeah, i looked and the rx-7 tII injectors are the best for the money. looks like im going the lazy msd route though, haha.

- tim

when you say "almost" brand new.. what do you mean? are there scratches or anything on it? I'd like to buy it ASAP as long as its in decent conidition and nothing is missing

Post by **PacManVR4** » Mon Mar 01, 2004 7:24 pm

I dont see why you would need the plugs, I just checked and the DSms and the RX7s plug right in fine. So I guess to sum it up the RX&s are plug and play.

Post by **Nismo1182** » Mon Mar 01, 2004 7:24 pm

What about the MK3 Supra? Since they bolt in, do they plug in as well?

Post by **slw240sx** » Mon Mar 01, 2004 7:24 pm

should

Post by **boost_boy** » Mon Mar 01, 2004 7:24 pm

Quote »I dont see why you would need the plugs, I just checked and the DSms and the RX7s plug right in fine. So I guess to sum it up the RX&s are plug and play.[/quote] Like I stated in my previous post, the purple top RX7 550s have a rounded plug plg and not the square bosch ones, so you will need the harnesses to make them work. How I know this is because I recently sold some to a friend with CA18 and SDS and had to install them and tune them as well. It's up to the individual the purchases these RX7 injectors to be a aware that their are more than one type of injector from these cars.

Dee

Post by **quest** » Mon Mar 01, 2004 7:24 pm

some rx7 turboII 550 injectors are tan and have square plug. Late 87? was a change in the impedance for the 550s. hi or loDoesn't the supra mk3 440s have a rounded connector ?

Post by **PacManVR4** » Mon Mar 01, 2004 7:24 pm

Mine are purple and square top. Those are hte only ones I have seen, So to clear that up the square peg dosent go into the round whole. I have only seen the Turbo 2 type like I have said.

Post by **biosehnsucht** » Mon Mar 01, 2004 7:24 pm

the 450cc DSM injectors that "fit", are they the blue top first gen DSM ones? some quick googling has determined that first gen DSM blue tops ARE 450cc low impedence, just want to verify they're the bandwagon-y 450cc ones

Post by **slw240sx** » Mon Mar 01, 2004 7:24 pm

yeah i have the 450 blue tops

Post by **diamondstar36** » Mon Mar 01, 2004 7:24 pm

PacManVR4 wrote:Mine are purple and square top. Those are hte only ones I have seen, So to clear that up the square peg dosent go into the round whole. I have only seen the Turbo 2 type like I have said.

The two purple tops you have are just straight Densos sold by Greddy. The TurboII 550s are tan top, so there still may be the fittment problem.

DSM blue top 450s are low impendence.

Post by **iliketocrash** » Mon Mar 01, 2004 7:24 pm

are the ca18det injectors low impedance as well? if not then what would happen if i put the wrong impedance in? i'm not to clear on the whole fuel injector thing.

Post by **Dori Dori** » Mon Mar 01, 2004 7:24 pm

Yes they are low impedance...2 ohm iirc

Post by **r34 gtr** » Mon Mar 01, 2004 7:24 pm

yeah, i think theyre actually about 2.8 but who's counting? we had a long and grueling discussion about it and they are low impedance.

- tim

Post by **Vetal** » Mon Mar 01, 2004 7:24 pm

Will these RX7 injectors fit, what do you reckon?

Post by **r34 gtr** » Mon Mar 01, 2004 7:24 pm

yes. they will fit.

- tim

Post by **Vetal** » Mon Mar 01, 2004 7:24 pm

:D:DSorry about that

I meant thesehttp://cgi.ebay.com/ebaymotors...%3AITor thesehttp://cgi.ebay.com/ebaymotors...%3AIT

Before you junp on the DSM 450 injecter bandwagon please read

Before you junp on the DSM 450 injecter bandwagon please read

Nissan Forums

Infiniti Forums

Datsun Forums

Technical Forums

Classifieds / Marketplace

Nissan Motorsports

General Forums