decided on KA-T need opinions

[daniel240]

ok ive finally made up my mind to turbo my ka. im tired of putting expensive bolt ons in with little hp gains. i dont want to spend a lot so it will definately be custom. my motor has 85k on it so i think it should be ok. all i want to run is like 6 or 7 psi. i dont know a whole lot about peicing a turbo together so help me out. i know the basic parts i need but will i need to upgrade fuel pump and injectors at that low boost. also, do i need to change the ecu? what size turbo would be good for this setup. also is it hard to make a custom manifold and how would i go about doing so. also, roughly, about how much hp would this give me with my mods? -thanks-

[Structure240sx]

search but ill getu started since u have nice car

upgraded fuel pump and fmu 6 heat range spark plugs gapped to about .030stock ecu is finet3/t4 would be good quick spool but will give u room to turn up the boostget a jgs manifold and bring it to exhuast shop to weldabout 230+rwhp

[Structure240sx]

also if u dont know alot about puttin together a kit u might want to look into buyin a kit. greddy's is kinda cheap no intercooler but u can run 6psi no prob and no one will be able to tell ur car is turbo from the outside

[daniel240]

i dont want to spend the money on the kit. i want to try and keep it under $1500, so im going to probably just peice togther used parts. find and intercooler and other parts at a junkyard and probably buy the turbo and manifold online. this may be a stupid question but what is a fmu? also were do i get that jgs manifold from? is that like a universal manifold or something? i heard people making turbo manifolds out of their header. also, were would be a good place to look for a used or cheap turbo? -thanks.

[Structure240sx]

fmu -fuel management unit it increases fuel pressure under boost to force more fuel through the injectors

teh jgs manifold i thins is jgycustoms.com- its not universal its the flange and runners closed off. u then have a flange to weld on whereever u want the turbo to go then port it out.

cheapturbo.com has good prices or look around herea guy on the forums is sellin a t3/04 right now i think

[Drift Machine]

Quote »teh jgs manifold i thins is jgycustoms.com- its not universal its the flange and runners closed off. u then have a flange to weld on whereever u want the turbo to go then port it out. [/quote]

Structure means jgstools.com

[Structure240sx]

there you go sorry

[Structure240sx]

that was jgycustoms.com i think i was thinkin of they are into SR's dont go there please

[daniel240]

ok where can i get the flange to weld onto the jgs manifold? and do i really need an upgraded fmu, if so how much is that? thanks for the help.

[Structure240sx]

the flange will come with the manifold from what i know. dont skimp out on fuel its not worth it. im selling my fmu with 300mi on it for $100. anywhere else will be like $200. i jsut want to get rid of it. wiht a walbro pump i was able to hit 10psi with it safely but i dont recomed it, thats kinda pushing it.

[daniel240]

where does the fmu go. i may want to buy it from you here soon. so the fmu is all i need as far as fuel system for up to 7psi? also ive been reading, would i need to retard the timing for this setup?

[Structure240sx]

u mount it to the firewall or like i did to the strut tower with a self tapping screw on the left side of the engine bay. then u put the return fuel into one side of it and the supplied fuel line from the fuel rail to the fmu. i would get a walbro 255lph fuel pump also. other people say u dont need it but why take the chance for $100?

[daniel240]

would a 300zx tt fuel pump work also? so your saying with the fmu and better fuel pump i will be ok? i dont plan on running over 7psi. also do you know if i need to change the timing or not?

well heres the list as of now:

-T3/To4e turbo-jgs manifold-junkyard IC and custom piping-custom downpipe-fmu -fuel pump???-wastegate???

let me know if this looks ok for up to 7psi.

[Structure240sx]

300zx will work but i would jsut pay a lil bmore for a brand new walbro. ull be fine with that fuel setup. but now i might be holdin onto my fmu for another month or two tops. as soon as winter hits the car is goin in the garage then gettin an ecu retune

[daniel240]

hey structure, let me know when you want to sell the fmu, ill buy it if you want to sell it here soon because i want to do this over winter break because im in school so let me know, my email is: [email protected]

[WongFeiHung]

...and blow-off valve?

[WongFeiHung]

What is a good way to control boost on a budget system like this?

[andrave]

some say MBC but they aren't the most reliable, I'd get a used EVC or profec or something for maybe 100-150 bucks.

[daniel240]

yea sorry i forgot, im getting a 1st gen. dsm bov.heres the updated list:

-T3/To4e turbo-jgs tools or custom manifold-tial 35mm wastegate-1st gen. dsm bov-junkyard IC and custom piping-walbro 255 fuel pump-fmu

i need an adjustable wastegate since im not getting a boost controller. is this one adjustable?

[andrave]

adjustable by putting diff. springs in it, yes.I'd be a BC, even an MBC would be better than just wastegate control, I think.Also, which IC are you planning on using?

[WongFeiHung]

If you use a low boost spring....and then later on get a boost controller...do you keep the same spring in the wastegate??

[andrave]

yeah. you cant ever go lower than your wastegate spring but you can always guy higher with a boost controller.

[s86d]

this thread is great you guys kept it simple. I now have a good idea on what to do. thanx.

[daniel240]

yea, ive learned so much from this thread. -not sure on the IC, just whatever i find at the junkyard, about any IC will work, it will be all custom and ill have a muffler shop bend the pipes for me.

-does anyone know what psi i would run with a tial 35mm wastegate? or are they all different, because i may be buying one in a day. also how would i be able to tell what psi i am running, should i get a boost gauge?

-also, would i need injectors along with my upgraded fuel pump and fmu? i was also wondering if bigger injectors and larger fuel pump would be a good combo, without the fmu?

[andrave]

1) no, they are available with springs anywhere from 4 psi up to I've seen 12.

2) yes, boost gauge. Get one! Even if you only get a cheap one, they are invaluable. If you get one of the more expensive ones you might even get a "high boost warning" feature, which would be cool.

3)You will need a bigger fuel pump if you are going for bigger injectors. If you stick with like 190 or so hp you can probably keep the stock setup.

[dvd]

this is interesting...maybe after you get your whole kit together, maybe do a small write up? i'm plannin on turboing ka.

[daniel240]

this is interesting...maybe after you get your whole kit together, maybe do a small write up? i'm plannin on turboing ka.

will do. im planning on doing the whole thing over my christmas break or sooner if possible.

[daniel240]

what about using just a walbro 255 f/p and bigger injectors without the fmu, would this work for 7psi? or should i just get the fmu and f/p?

[Structure240sx]

u would have to get the bigger injectors tuned somehow. SR 370cc inectors and an safc would be a very good fuel system i think for 7psi that can take u to 10psi

[:: orion ::]

370cc inectors and an safc would be a very good fuel system i think for 7psi that can take u to 10psi

My 370s are maxed out (100% duty cycle) at only 8psi from a T3/T04E. They may be able to support 10psi from a T3...but it's not an absolute #.

Basically, 370s will get you to ~250rwhp...which may be 8psi, may be 11psi - Depends on the turbo.

Later - Brian