project M30 TT

[infiniti m300x]

Hey guys, new to the forum. I am just starting this project. Last weekend I pulled everything off the 300zxtt clip and started undressing the dett motor for some rework. I have the rack and all from the zx if you need measurements. Please keep this going. When all this works out there will be 2 m3o sleepers. Later.

[95-J30tt]

i hope that this will motivate another J to also have 2 J sleepers in this forum......

[ttinfinitiM30]

thanx for the pix. though im having a hard time seeing the steering rack in the last one.

the mounts of hte j30 sound like there gonna work good though cause right now im just on the frame w no room for rubbers. if the j30 will get me closer and still give me the rubbers then ill be working from a much better spot then the TT brackets. but now ive jus gotta find them to work with.

when i measured my rack there were two different spots i measured from.the first is the mount of the rack shown in the picture. the second was about 5 inches inward from that, at some thing that was on the bottom side and in the center of the transmission. did pay much attention to what it was though. i figured that would be close to center of the rack too. anyway if u could get a simalar picture and measurement that would be real cool. hey M300x good to have some one else getting on the same boat. its a little shaky at times but dont hesitate to ask questions. ive got plenty of pics and ill be happy to share. 95-j30t has been real helpful and so has elwesso. but check out 95-j30t's post cause theres alot of the same issues hes delt with that are in common with the M30. and yea if u could get the measurement from the rack for me then mad props, although i think the 300zx rack is in front of the turbos and might fit around at a better spot. i dono thogh cause i dont have a 300zx to look at. i am wishing i would have gotten a front clip tho... good move. cause theres losts of things i still need. mas airflow sens. BOV's inercooler. but that jus means ill be going aftermarket from the start. good luck man.

[95-J30tt]

i'll snap a similar pic of the J's column during the week, and get better pics for the rack assy..... about the MAF, the 300zx, J30, 300zxtt, and more nissans, share the same MAF (it is good for up to 430hp), i'm sure that most junkyards would have them for cheap, i think the second generation maximas have the same MAF but i have to check which years do.....

about the bov's, try locating a JDM used engine supplier in your city, i got 2 used blitz (original) bov's for a hundred bucks from the same place that i got the engine and transmission package from..... the intercoolers would also be cheap from those shops too..... by the way, if you are going with the centre mounted intercooler setup, make sure you get one that has 4 outlets in total, it would make the piping so much easier

[ttinfinitiM30]

right now i havent been haveing good luck with the hareness i have. soo i may be thinkin of going to a stand alone fms. this would get rid of my egr, and most other emmisions. ive got my inspection licence soo that wont be aprob for me to get it on the road. id also be able to get away from the MAS and jus use a MAP. i got a feeling the MAS would be pretty salty. im jus not 100% with that idea tho cause im wanting to get the engine running with out a stand alone.

in ur post did u mention that u still had the TT harrness??? cause the one ive got has a few loose ends and im not quite sure what to doo with them. the only branch thats complete is the one going to the engine so i got no gauge wires and thers some other branch further down that im not sure what it does.. thats my motivation for standalone. when it comes to the intercooler ill be getting a dual flow one large center mount. like this http://i15.ebayimg.com/06/i/08/d8/45/f9_1.JPG got room for it if i fab up some brackets behind the head lights. the BOV's will probly be new unless i get them from ebay, even then still probly new ones, cause in central PA i dont think theres any JDM suppliers. AHHHH.....dam the list of parts i need

[95-J30tt]

i do have the jdm harness, but with the same issue as the one that you have, the only (and the main) branch that is full is going to the engine and transmission on one end, and the ecu on the other end, if you have any questions regarding where certain wires go, just post a pic, and i'm pretty sure that i remember where most of the engine and transmission part of the harness goes....i got off lucky with this one, i used the J's harness, it plugs to the tt ecu, so i avoided some work there.....

do the ECUs from the M30 and the tt look alike?....if the do, then you wont have to swap the harness, you will just need to add the missing wires from the tt wiring to the M30 harness, there is a detailed drawing of the ecu pins and where they go, i need that chart too, i'll be looking for it, i'll find it and post it by tomorrow

please update us on that, i'll be checking again tonight

[ttinfinitiM30]

the stcok ecu to the TT's look the same i dont have a pic tho. but the fact that the m30 is single overhead nonturbo...there would be more wires added then it'd b worth. i thinnk ill jus be working out the engine connections that are loose and maby find aftermarket guages to monitor every thing. it be easier doing that then tring to add to it..??? new thought thogh instead of doing that then i could splice the gauge lines from the TT harness w the M30 harness to get the guages to work/ if i can find good diagrams tho...cant be too sure what ill do.

i know that the first branch form the ecu goes to the guages but theres another one that goes off at the back side of the engine pass side... all i can think is that his goes to ABS. but im not sure if that runs its own cuircits

[ttinfinitiM30]

i found the ECM pins and schematic in the 96 300zx FSM. downloaded from http://www.phatg20.net/modules.php?name=Downloads

pin locations are under page 2 in the foldout section or in electrical systems then the last bookmark under electical unit.

the schematic is in engine control section under engine and emisions control overall system. also got the M30 electricals from http://f31club.com/manual/ altho there a little hard to read.

[infiniti m300x]

It looks to me about 5 1/2 inches from where your measurements are and the rack boot to boot is 20 inches. Kind of off topic, have you considered going to 1 big turbo, maybe this would bypass rack prob. If what I've heard is true maybe significant gains are possible going single. I dunno.

[ttinfinitiM30]

one of hte advantages of twin turbo is the spool time. it takes longer to spool up a larger turbo then a smaller one.which is the advantage to twin turbo setups. two smaller ones can boost as much as one larger. plus yea ive already kicked myself for not just doing the vg30et swap cause there would have been less complications with mounting and someone on the forum is claiming they've got bout 500hp with there vg30et. anyway ive got twin turbos and i plan on using them. im not seeing this steering rack being too big a problem that id have to resort to that. thanx for the measurements. have u got anything going with ur swap. like taking part the M30? u should post up some pix if u got any. cause everyone loves pix.

[95-J30tt]

if they look the same the they might very well be the same pins going to the same sensors, that is a big break i think, and since you have the tt harness then it shouldnt be that hard to splice wires as needed IMHO..... just off the top of my head, i would assume that you have, injectors plugs, spark plugs connections, cam angle sensor, maf, coolant temp, fuel temp, oil gauge, speedometer (in transmission), and a rev sensor (in transmission) in your M30 harness, there shouldnt be much splicing, again that is only what i think, i could be wrong man, please keep us updated with that issue, i hope it works out well for you..........

thanks a million for the diagrams, i need it to get a fuel temp sensor wire hooked up (the J's harness doesnt have such a wire, but the actual sensor is there in the tt engine)

i'll constantly be checking this thread, you are giving birth to a monster, belive me......... i drove the car for the first time today (still some issues to take care off, small oil leak, threading bolts, tweeking, and so on), i can not discribe the feeling in words...... but trust me, it will all be worth it once you hear that devil rev, i'll keep the rest to my self, i dont want to spoil it for you..... it will all be worth it at the end

[infiniti m300x]

How do you insert pics?

[ttinfinitiM30]

u first need to get the pictures to a host site. i use photobucket.com its free to setup an account. upload the pix to ur account then it will give the pic a web address. copy the address. when ur writing a post. click insert image from toolbar above. paste (ctrl V) the adress in between the IMG][/IMG when it appears. and there u go its a picture

[ttinfinitiM30]

well the idea of using the M30 harrness is good and all but theres 4 O2 sensors, individual coils 2 TPS and several others that im not thinking of right now that would need to be added to the m30 harrness. pluss the lengths of the wires that are there to fit around certain engine areas would need to be lengthened or shortened. the harrness ive got already fits the engine like a glove so my best bet would be to just make that work i think. if i just hook up the engine wires and maf i should b able to get the engine to fire with out much splicing or guages, until i get it figured out..

got some pix. this is what is going on w my TT harrness. the green is what i think things do exept for the coil control, i know that one. the rest are just guesses at what they do. Red = coils, blue = injectors this is a close up of what i think the Maf is computers top ones the TT opened up the TT and found somthin intresting.. in ur post 95-j30t u chipped ur ECU, and said u put a socket in there for the chip. theres a chip in mine thats on a socket and it looks like the sticker on it has beeen written on. i donno if this is aftermarket but .... if it is dose ur ecu connector look like mine? cause the diagram i mentioned earlier is much diff. maby it a diff year??

[ttinfinitiM30]

fuel temp sensor / for 1994 FSM (looks alot like the harnness ive got) PIN #36 of the TT diagram wire color BR what ever color that is. hope that helps u

[infiniti m300x]

Hey there. Have you considered the fuel delivery? The dett needs a good supply of gas vs the e. Are there universal fuel pumps for this application that you know of. I'm sure there are The guy I bought the clip from sold me a separate fuel system computer. That controls all aspects of the delivery. It is located behind the driver seat on the zx right hand drive. They cost about 200 on ebay. Or do you have a plan already. Just a little FYI. lata

[ttinfinitiM30]

cant say ive even thought bout that yet but the 300zx tt would work. and yes there are universals and i beleive that jus bout any fuel pump can work in any car. as long as the pressure is adiquite. all the pumps ive replaced have been the same basic stuff . theres a big ring on top the tank and u unscrew this ring take off the lines going to the pump and the pump sits in the tank usually hanging from the peice that the ring holds down. sum times thogh cliped to the bottom of hte tank but as long as the pump pumps enough fuel itle work.

[95-J30tt]

got some pics for you

that is the stock 300zx chip in the pic, if yours is socketed then most likely it is an upgraded chip in there (if it reads the same as the one in the pic then it is stock, the stock chip is locked and cannot be reprogrammed), or maybe it was and they just reinstalled the old one back, in either case, it is a big positive, you just saved over 20 bucks to buy a socket and looking for a place that would solder it in place, and most importantly, it is for sure that this ECU works, i'm glad to hear that



and here is the 300zx ecu sticker



and here is a pic of the connecting pins....



hope this helps man

[95-J30tt]

i forgot that one.... that is what the ecu looks like from the inside (300zxtt)



on another note, for the wiring, on the tt's harness where you have noted (dash) is there something like that in your stock wiring? (it is a yellowish plug that these cut wires hook up to), if you do, then you might not need much splicing, in my stock harness, there was such a plug where it connected to the dash, so you might be in luck there if you have that
Modified by 95-j30t at 2:11 AM 1/18/2007

[elwesso]

Pics arent working.

[yodawill2000]

???I see them fine ?

[ttinfinitiM30]

I See pictures.and ive got a few more heres my puter #..... if anybody knows bout them then u may see that it is for the j spec engine w/ manual transmission. yep thats right on top of doing the TT swap ill also b going to 5-spd. cause its just more fun to drive when uve got that much control over the car. this is the post i found info on the puterhttp://www.aus300zx.com/forum/...48218 took out the engine mounts cause the junkyard im gong to dosnt want to get rid of the j30 mounts. soo im gonna take these in when i get my rack and try to pursuade a trade.
Modified by ttinfinitiM30 at 6:54 PM 1/18/2007

[infiniti m300x]

[driftkaztik]

very interesting stuff as usual.

do you need j30 mounts? the 300zx ones dont work?

this swap is very interesting because it is something that people dont feel is possible. People talk about space and conversions and wiring.

But glad to see it being done, even some guys on f31club are happy to see it being done. Everyone usually does the ET swap.. but for the DETT, you get my props.

I'll be making a similar thread soon, but with an rb20det.

[ttinfinitiM30]

I spent some time and looked at my wireing today. heres an update for what wires do what with my tt harness. radiator support, MAF, PRVR control siloniod valve what ever that is. ???any help??? heres a pic of the stock MAF. im thinking ill might b able to use this for the TT

and heres the stock engine. to give an idea of how different the wiring harness is from the TT. this block dosnt have half the shnit the TT does.

hopfully ill b able to get a set of j30 mounts soon so i can see if they work.this tues ill b tring to get a steering rack from either a j30 or a 300zx whichever looks better to fit

[infiniti m300x]

That maf looks like mine but mine has a few dif.#s 22680 30p00/A36-000 n62. i have the AT tho. it is a 4 pin. As for the prvr I couldn't find out what it is but are the wires yellow, blacknred or grey, dk bluenred? The first one is a white plug and the later is black. Do you need measurements of the 300zx rack? let me know. later
Modified by infiniti m300x at 5:21 PM 1/21/2007

[infiniti m300x]

Did you mean pvrv the pressure/vacuum release valve?

[ttinfinitiM30]

heres the story im not 100% on what year engine ive got. so ive been looking at the 1994 FSM and most of it has been linning up. it lables the PRVR control soledoid valve to be what it is. and yes it is yellow with a black/red.

the maf pictured has a 4 pin setup like the schematic decribes so im gonna try it unless someone who knows says otherwise. in that bunch i have 2 black wires 2 white wires and 1 orange wire. the black and white wires are for the maf but i havent found out the orange. im thinking and air inlet temp sensor.

and theres another set of four wires that im unsure what they do, there not found on the 94 scematic so im thinking its older but also dont have a good copy of the earlier diagrams. its located on my first pic of the harness underneith the blue I in INJ. its got 2 bk/rd wires, 1 G, and 1 br. its also located on the back side of the engine pasenger side. (sorry dont have a better pic)

thnx for the help

[J30Guy612]

Great job on the project so far, this car will be amazing when it's finished!

[infiniti m300x]

If you haven't found the prvr yet it is in the service manual online mentioned earlier. it is in the ef&ec section page 8. it's on the drive side,it has vac lines run to and fro it. further it is on the bracket b-low the intake plenum. connects w/2 screws. I haven't found out how to identify years, but I'm tryin