KLoWnPR109

iTrader: (9)

Without geting into specifics..........here I go

I have the JWT ECU. I send that in for $100? they reprogram it for the turbo "program" and send it back, and that's IT for my fuel? I'd replace my stock fuel pump with a newer one just because I wouldn't trust it for boost purposes.

This would be for a low boost, non intercooled setup, probably 6-7 psi

Jeff92se

iTrader: (82)

Best to call. They need to know what you plan on running. They should add a seperete program that adds fuel and retards timing when the engine sees boost. But you probably have to advise them what injectors you plan on running. ie.. stock units, low boost and Z31 style manifolds, T3 turbo etc....

DA-MAX

iTrader: (10)

you need 370cc injectors and a Walbro and you should be finefor fuel. if no JWT, an FMU and MSD BTM would be an alternative too since the VG has a dizzy and you aren't running an IC and only low boost.

subs1000w

whats a dizzy

DA-MAX

iTrader: (10)

distributor....I've been hanging on Honda Tech too much

KLoWnPR109

iTrader: (9)

Jeff has got it on the money. Stock injectors, z31 manifolds, t3, fairly low boost.

I'm pretty convinced that I can do this for under a grand if I can find manifolds and a t3 in good shape. We'll see though

It would be awesome if I could get them to buy back the nitrous daughterboard from me Maybe when cow's fly (same time as a turbo VG hits the streets)

DA-MAX

iTrader: (10)

if you are only gonna do stock Maxima injectors...then skip JWT altogether...get an FMU, Walbro, get your sock injectors cleaned and buy an MSD BTM, knock off maybe 1-1.5 degrees per pound and drive away! you should be fine for 6-7 lbs. WELL under $1000 if you source parts right and do most of the work yourself

KLoWnPR109

iTrader: (9)

But I already have the JWT It just seems like the most logical thing to do to me. 100 bucks and I've got it all tuned and ready to go

The fuel and finding a good turbo are the only things that I'm concerned about. Piping (intake, exhaust) would be relatively simple.

Jeff92se

iTrader: (82)

As long as your psi levels won't potentially outflow you stock injectors, the JWT is IT for fuel and ignition. I'd invest in a good pump and maybe a good regulator though.

DA-MAX

iTrader: (10)

true...I wonder if they have a program fro VG30E n/a injectors?? remember if you use Z31 manifolds you will need to either get rid of the fan shroud and driverside fan or go fully custom also

mtcookson

iTrader: (2)

where are you planning on putting the turbo? if you slap on the 300zx manifolds and leave the turbo in the stock location you'll need to make a custom motor mount.

as for fuel, since the stock injectors are really small you'd need to bump up the fuel pressure quite a bit i would think.

another option that i have been looking at is the SR20DE injectors. They are 259 cc like the stock Z31 turbo injectors but are high impedence unlike the Z injectors according to the z31.com guys and will work on the maxima ecu since it runs high impedence injectors. you'd have to tell jwt about them so they could program the right fuel maps.

the SR20DE injectors are cheap as hell. i found a set of 4 for 50 bucks a while back. 255 lph walbro fuel pumps are really cheap. you can find them for around 100 dollars just about anywhere online. as for the intake and exhaust, any exhaust shop can do both of those for cheap if you don't mind the looks and if you did that you could keep the stock manifold to cut costs.

so, so far you'd have something like this:

jwt reprogram - $100
walbro pump - ~$100
SR20DE injectors - up to $100
full exhaust and intake setup - $140 (based on what i spent to get mine done)
300zx manifolds (car-part.com):
right side - $22.75
left side - $30
84-86 300zx T3 turbo - got mine for about $150 but on car-part.com there is one as cheap as $75. you'd have to call them up and make sure its in working condition though because rebuilding costs quite a bit.

so... looks like the price so far would be up to $642.75.

you would still need to decide on what to do with the turbo. if you leave it in the stock location like i said you'll need to do a custom motor mount. you also need to tap the oil pan for the drain and setup the oil supply line for the turbo. if you leave the turbo in the stock location you can use the stock oil line off of the 300zx. if you decide to move it you can just get the steel brake line from autozone for really cheap and it would hold more pressure than steel braided hose (just doesn't have the looks).

DA-MAX

iTrader: (10)

I'm still not sure why you had to do that...on Max O/Ds car we had to do NOTHING of the sort....everything fitting PERFECTLY, stock mounts and all and that the full VG30ET swapped in like you

mtcookson

iTrader: (2)

he changed his radiator and/or fan shroud didn't he? also, i believe he flipped the turbo upside down over the stock design which should give enough room for the motor mount. if you that you'll need to get a really thin fan setup because the turbo will be setting very close to the radiator then. i'm not sure if that would be a cheaper route or not, it all depends on the price of the fans. also, if you flip the turbo over you'll need to loosen the turbine and compressor housings to spin the center section to where the oil drain is pointing down.

DA-MAX

iTrader: (10)

yeah....but is that why you had to make a new mount though??

mtcookson

iTrader: (2)

if the turbo sits in it stock location there's no way at all to bolt up the motor mount. i had to just throw together this piece to leave the turbo where it was.



Max O/D flipped his turbo over to get rid of that problem but added the problem of the radiator and fans. i guess he just got some really thin fans to solve the problem.

i forgot to mention, that ugly piece is not on my car. i have the stock motor mount and moved the turbo because i couldn't figure out how to make my own motor mount that had some sort of rubber or polyurethane in it. i'm sure if i spent more time on it i could have made something but the crossover pipe thing was much quicker.

DA-MAX

iTrader: (10)

ah yeah, I see what you mean!! here is his radiator though, one big 14, SS shroud, 2 flappers...nice and bling bling, I just hope it works....

mtcookson

iTrader: (2)

nice n purdy looking. really, all you need your fan for is if you are sitting idling for a long time. there's little chance of your fans actually turning on while driving unless you are constantly boosting or have some blockage in the coolant system. that fan should work fine.

Jeff92se

iTrader: (82)

"flipped" ??

Turn the turbo around? ie... compressor/turbine are on opposite side?

Or reclocked? If reclocked, how did he deal with the wg arms etc..?

mtcookson

iTrader: (2)

Max O/D actually flipped the turbo over so the compressor was on the opposite side. in that picture above you can see that the compressor is pointing torwards the alt. on Max O/D's setup the turbine would be pointing towards the alt.

if you reclock it (thanks for the term, i didn't know what it was called before), you could probably make some crazy wastegate arm or just upgrade to an external wastegate. external wastegates sound gooooood

CiViC KiLLeR

Nismo87SE

your best bet is to get 370cc injectors, walbro fuel pump and the turbo program. That should give you enough fuel for almost 400whp if you ever decide to upgrade the turbo. If you ran maxima injectors you are limited to the stock turbo and 260whp before they are maxed out, that is assuming you run the 259cc injs from a Z32 or VE. IMHO get the 370cc injs so you wouldn't have to upgrade later.

stephenlc

iTrader: (1)

What are flappers?

DA-MAX

iTrader: (10)

look at the left side of the radiator, you'll see two small hatches/doors...as the car is moving the incoming air will push the hatches open and allow air to pass through almost like a stock raditor. this is so you don't have air "collecting"/hitting the shroud on the fan-less side while the car is moving

stephenlc

iTrader: (1)

Wow did you make that? That is pretty nice.

DA-MAX

iTrader: (10)

I wish...my fab skills aren't up to par like that. it was a local shop in VA.

stephenlc

iTrader: (1)

Well it looks great, how much did you pay for that if you don't mind.

I am rethinking my piping setup since I read the 3.5 turbo thread about him putting the turbo under the battery tray, I am going to look at the clearance in the morning. This way I might not even have to remove one of the fans.

DA-MAX

iTrader: (10)

around $350-400...big $$$$ mostly since they don't usually do automotive stuff( but the guy made an exception since he runs a similar setup on his race car)

stephenlc

iTrader: (1)

Wow, that alot of money, but it looks great.