Let me know everything i need to know

[240_sidewayz]

i currently just bought a 89 240sx no rust very clean but the engine blew and apparently the person i bought it off of did not know what they were doing when they did the head and it blew again and a rod also went through the block due to milky white oil. The guy knew the engine was going to go so he gave me an extra head and block. The block he gave me i opened up and it was recently rebuilt but the head is bad so we striped it and cleaned it the best we could. Now we are goin to put a .20 shaved head on it and a turbo after i port out the intake manny alittle bit. I have a t3/t4 off a svo mustang or t-bird with no shaft play so we are going to use that with a custom exhaust manny. Ok i only want to run 8-10psi but a safe 8-10psi cuz i dont want it to blow i dont want to push it that much. Now i know u need 370cc injectors off the sr20det or 300zx injectors (which is better for what i want) and a different maf, i have a good fmic so thats not a problem. But my friend said i need some kind of fmu like a 10:1 but i said im getting the injectors and a 255 walbro wouldnt that be enough if not tell me what would be suitable for what im doing, im lookin for around 225whp if not less like 200whp.

[epokh]

Over all, I would say search and research...hahaha...I just made that up!...get it!??..search and "re" search....oh god I kill myself!....okay enough of that The Walbro 255 will be just fine for your setup. Shaved head, ummmm no. Especially if you are going to use just an FMU...I beg you to look into getting something better, AT LEAST an SAFC! I don't know a lot about the turbo you're using, the T-bird/SVO had some derivative of a Garrett T03, different A/R's for the auto and manual I believe???? Others on this site could help you out more with that. But I'm pretty sure you can get most of your answers from searching on this site.

[Craving4Boost]

ugh I personally dislike 370cc's off SR's. They're always old and beat up. Honestly, go with a FMU or 480cc's from Deatswerks.

[240_sidewayz]

yea but what else would i need a walbro, injectors, fmu, safc (dont know what that is) also what is the size of the injectors on a 300zx>?

[DammitBobby]

IMO I think you would be better off for the money with an SR20DET setup for 1750 from our sponsors. It will reach your power goals with very little modifications. I am not saying that the KA24DET is not a good engine but you are going to be throwing a lot of money at this project and the car wont be worth much when you go to sell it.

You can increase the sale value of your car with an SR20DET but if you install a KA24DE it won`t change the value at all. Just talked to somebody who sold an 1990 with KA24DE swap for 2k. I have seen this car and it was clean body, clean install. I have seen Pignose cars go for 4k plus with SR installed.

[rotorimp]

.20 is almost a 1/4" I'm sure you meant .020--It is still allot--was it warped really bad? Your Ecu needs to know what you have so you need a fuel management unit that you can change the MAF,injector size and generally tune the car. I would recommend getting a SR20--throw it in and build the KA slowly and the right way--I have seen too many motors blown up because people just slap things together.
Modified by rotorimp at 1:29 PM 2/13/2007

[hannibal]

The turbo from a Ford 2.3L is a straight T3. 0.60 comp housing with 60 trim wheel. The manuals had 0.63 A/R exhaust and autos had 0.48 A/R. I think Jookmaster is using one.

Z32 injectors are 370's, same as SR20. They usually seel for over $100 (for a set of 4) and then you need to get them cleaned and flow tested. Deatschwerks does all this for you and provides a warranty for $229. Pretty good deal IMO.

SAFC + 370's + Walbro 255 + N60 MAF + 8-10psi should be good for about 250whp. The 370's are the limiting factor here. Dont forget something to control timing, or at least retard base timing (but that will cost you some power)...

[240_sidewayz]

what is a n60 maf or what car does that come stock on

[jmwenick]

N60 is from Earlier Maxima's. Supposed to be good for up to 320HP and works well with 370cc injectors.

[240_sidewayz]

umm what year lol, im tryin to be as safe as possible with power and minimal engine ware,

[Florida240sx]

safc 370cc walboro and z32mafs

[240_sidewayz]

well what about the n60 maf cuz there are 2 mafs here in this thread now if i get like 400cc injectors and one of those mafs, im goin to tune it pretty well with my friends wideband but yea let me know more info if needed thanks guys

[WDRacing]

Lets start with looking at what you have. Right now you have a stock block, possibly rebuilt, a head that has been shaved and a smallish used turbo.

The shaved head will raise your compression which is bad. That means you can run no more then 5 psi without the need for timing retard on boost.

Lets assume you're working with a completly stock KA24DE motor. For that motor to run 8 psi on the bare basics, you'll need a 8:1 or 10:1 FMU and a 255LPH intank pump. I'd also get new sparkplugs one or two heat ranges colder. Thats it as far as fuel is concerned. So use that same setup, but keep the boost down to 4 or 5 psi untill you have a method for retarding timing on boost. Like the MSD BTM...

WD

[240_sidewayz]

ok scratch the shaved head cuz i found a good used one that we are goin to go through. But so far im using 300zx fuel injectors (does it have to be a turbo car) 10:1 fmu, 300zx maf, boost controller, walbro 255, and i think thats it besides the j30 lsd lol but let me know other things i could do to run a very very safe 10psi, thank u in advanced

[240_sidewayz]

BTW its a single cam.

[hannibal]

Single cam (KA-E) uses top feed pistons, so the 300ZX or SR20 wont work. If youre getting bigger injectors, you need something to control them (either a SAFC or a retuned ECU) and you dont need an FMU.

I think you need to do a little more independent research.

EDIT: the KA-E uses top feed injectors. Dont know where the word pistons came from...
Modified by IWannaS15 at 1:01 PM 2/14/2007

[240_sidewayz]

so i dont need the fmu but i do need everything else right?

[WDRacing]

You're not grasping anything we are telling you. Are you reading what we say?

Listen to me very carefully and reread what I type 3 or 4 times before you reply. If I sound like I'm talking down to, I'm sorry, but you have NO idea what you're talking about.

First off, you need to grasp what type of motor you are dealing with. Research the differences between a KA24E motor and a KA24DE motor. I'm not going to tell you and neither is anyone else. The more you learn the better off you'll be.

Secondly, you need to pay attention to what people tell you. Youy also need to look into what each part does. You have no idea what a FMU is or you'd know you don't use one with larger injectors. You'd also so know you can't use larger injectors without a device to control them, like a SAFC or Emanage or ECU Retune.

In my honest opinion I think this is beyond your ability at the moment. Your best bet is to save your money, read and learn, then buy a complete bolt on kit.

Again, I don't mean to be a prick, but I'm saving you some real heartache here.

WD

[240_sidewayz]

ive been talkin to various people on this and thats why im so confused, for 1 u guys all told me that the stock injectors would be way beyond there limit if i use them so i get the 370s so they still have some punch left, now on the fuel u need more volume pump thats where the 255 walbro comes in, and the safc is a wideband from what i was told and the 300zx maf is just so it can keep up with the rising rate of the air being pulled in to the intake. On the other note u guys told me also if i want it to work the way it is now i need a fuel pump and fmu with stock injectors but i dont want it to be working its hardest so im goin to do the first thing i wrote above

[Dano]

Re-read the whole thread. You've obviously overlooked a lot of information.

SAFC is NOT a wideband, it's a piggy back fuel controller.

If a motor uses TOPfeed injectors, then you CANNOT use SIDEfeed injectors on the stock rail.

I'd seriously consider taking WD's advice and holding off a little while and buying a bolt on kit, you have a lot of learning that you need to do, and the best way to learn is own your own, so look up old threads on the subject and start reading, theres enough info that you can read for DAYS on end.

-Dan

[AZhitman]

Here's my advice:

You don't have a running motor, so you have nothing to boost.

Get the motor running in NA form first. There's no sense polishing a turd, or boosting a bad engine.

You have a LOT to do before you even consider boost.

[Edub1]

There are two ways to deliver more fuel to your turbo motor. One is to buy an FMU which will increase the fuel pressure going to the injectors and thus increase the fuel injected. The second is to install larger injectors and control (shorten) the pulse width of the injectors.

If you are on a budget and are looking for modest gains ~ 200HP, you can use a small turbo with an FMU. If you plan on increasing power you should be looking at 460cc or 550cc injectors from an RX7. A MAF swap is needed after around 260HP. ECU tuning is also necessary at this point. I would be willing to help with this.

My advice is to shoot for 200-250 HP. Get 460cc injectors and a resistor box and use the stock MAF. A T3 Super 60 is a great turbo for this.

[240_sidewayz]

THAK[QUOTE=Edub1]There are two ways to deliver more fuel to your turbo motor. One is to buy an FMU which will increase the fuel pressure going to the injectors and thus increase the fuel injected. The second is to install larger injectors and control (shorten) the pulse width of the injectors.

If you are on a budget and are looking for modest gains ~ 200HP, you can use a small turbo with an FMU. If you plan on increasing power you should be looking at 460cc or 550cc injectors from an RX7. A MAF swap is needed after around 260HP. ECU tuning is also necessary at this point. I would be willing to help with this.

My advice is to shoot for 200-250 HP. Get 460cc injectors and a resistor box and use the stock MAF. A T3 Super 60 is a great turbo for this. [/QUOTEthank u thats what i was lookin for, now as far as the 460cc injectors where do i get those i mean did a factory car come with them stock? cuz if so i will get them then, im pretty sure a nissan v8 or v6 came with them but yea thanks alot i was lookin for this answer but no one understood what i was saying. Now what is the resistor box and where do i get that?

[WDRacing]

Goood God....I just threw up!!!!