turbo qustions

[lexcrob]

So all u want to do is remove speed limiter. I'd imagine an auto Ecuador wouldn't have one..well maybe. Of course also no rev limiter. Get bee*r and u good I have one if ur intrested.

[lexcrob]

I mentioned auto ECU. Dang iPhone...

[240man91]

yea i have read some stuff on that is that true an knew what you ment.lol an how bout tuning cause i am add turbo soon all i got left to get is a hallman boost controler to go with my cable i got to control it from in the car;) an have to get oil lines for turbo got the fittings just have to get lines but that is cheep stuff. an was going to ask cause i am going to drive it to shop to have it tuned can i put all turbo stuff on an just not run the hot pipe an keep the cold air intake on till i get to shop or will it b ok to run turbo with out a tune till it gets to shop. ps the shop is an hour away

[lexcrob]

Yes you can run a turbo set up and just disconnect the hot pipe. Relocating maf of course-

Tuning an automatic ecu should not be any different than manual. Daughter board stuff prom .... i wouldnt think maybe someone can verifty that dont matter for a honda (no rev limiter tho!!!)

[240man91]

ok guys i got a apexi avcr boost controller from a guy an he took it out of his car so i did not get to remove it my shelf so i do not know how to hook it back up i did some lookn but didnt find much i know it has to b wired into the ecu but dont know how an it has two parts that go under the hood on being the boost controller, an the other idk dose any one know how to hook one up or know of a good site that will help me i got this thing for 100 dollars an it is only 4months old guy blew his sr an was hurtn for money love those kind of deals

[s13drifter88]

the apexi avcr should be wired into the ecu with an rpm signal input and a throttle signal input. the 2 parts under the dash are 1 the boost control solenoid and the pressure sensor. pressure should be conected to a vacuum line via a t fitting into something like the pressure reg vacuum hose and the solenoid should be connected to a larger vacuum source and then from the solenoid to the wastegate of the turbo. for tuning go to jimwolftechnology.com and buy a rom tune ecu for your car. honestly tho for 300hp youll need a larger turbo, even the s15 t28 wont suffice. if youre going to stay t2 then the smallest thing you could pull off would be atleast a 2860 but would be much better off with like a 2871 or 3071. t25 will do u maybe 210-220whp but the stock maf will take a dump on you by that point. Order a jim wolf ecu, a set of 550's, a z32 maf and a larger turbo like a gt2871r. that setup will yield you a whopping 330-340whp and it will do it safely. going t3 will open more doors for more power but remember, more power will require more fuel and 550's wont really do much more than what a 2871 will do on a ka.

[240man91]

thank u man thats what i was wantn to here an i got the avcr in to just have to run the turbo now an i know i need a bigger maf. the z32 is that off the 90 an up 300z an is thewre any other mafs that will work? an with the turbo set up i got not i think i will just run it till i get thist other ka i got built going all forged an bored like .30

[s13drifter88]

the n62 maf is the one you want. it has resolution to over 450whp. an n/z z32 will have th n60 maf which is the same as the early 90's maxima. the n60 is only good to about 310-320whp. you could also use a p60 from an infiniti q45 and that has resolution to about 350-360whp. now remember that a maf swap isnt just a direct swap. youll need th wiring harness for it so if you get one from a junkyard make sure you cut the pigtail about 6 inches back from the maf plug so youll have some wire to work with and of coarse as always NO BUTT OR SPLICE CONNECTORS! Always solder maf wiring. Theyre signal wires so connectors will cause chages in the resistance of the voltage signals that it carries and can faqk up they readings it sends. Solder, heat shrink and wrap the wiring in electrical tape. As with any maf swap the maf will have to be calibrated to work with your ecu. you will either A) require a maf translator to modify the voltage signals, B) use an apexi safc to translate the maf in using its maf selection function or C) if and when (and I hope you do) get a rom tune you can specify what maf youre going to be using and they can tune the ecu to operate with that maf

[240man91]

ok that is real good to know what year infiniti q45 an yea i am getn a rom tune befor i even drive the car i want it to run right when it is done an so the n62 is out the turbo 300z an what bout a pathfinder

[240man91]

now i been doing some searchn an found a few post sayn that the stock ka24de maf can hold a bit more that 300 whp if this is trun then i wont need a n62 maf right dose any one know if this is true or just some bull s**t someone is sayn?

[coolbone28]

All z32 MAFS are the same (N62). I wouldnt trust the stock MAFS over ~220whp. 250 is pushing it. Dont even think about over 300.

[240man91]

ok thats what i was thinkn. i will just spend the 100 bucks an get the n62 maf no big deal. heve any of u heard any thing bout haven a ecu tuned by sending it to emance on line. they have a ad on ebay sayn they will do it for 170 bucks an they say they have 15years exp

[s13drifter88]

the ka24de maf has enough resolution for about 17-18lbs a min of air. thats enough air for about 210-220whp. idk what the pathfinder has but Ive never heard of anyone using it. only the n60, p60 or n62 are the mafs I use on any of my builds. the p60 is found on all the q45's. n60 is the early 90's maxima and n/a z32 and n62 is the twin turbo z32. the n62 is the maf id look for honestly. theyre about $100 with the pigtail and it'll do pretty much anything u want to do. most romtune packages are for 550's and an n62 maf so thats a pretty common tune so that combination will yeild great horespower gains and keep turn-around time to a minimum. just remember to inform whoever is doing your tune of all modifications made to the electronics/fuel system

[240man91]

ok i will have to sit down an do that an any one have an sugestions on spark plugs

[240man91]

o an another thing is do i need to run the water for the turbo i have read that alot of people dont.

[s13drifter88]

No ebay tunes. Get ur romtune from either RS Enthalpy or Jim Wolf Tech. Run one step cooler than the stock plugs. I would try to run coolant lines for the turbo, it'll live longer. Its kinda janky but Ive seen people loop their coolant lines from the throttle body around the back of the engine and to the turbo, then from the turbo back behind the engine again and back into the system.

[240man91]

ok an what if i out line from the heater core an ran it to the turbo an then back to the motor u think that will work cause that water has been cooled abit by the heater core.thanks for letn me know bout the tune

[s13drifter88]

it really doesnt matter where its gonna come from, the engine coolant is oing to be about 2-300 degrees cooler. theres only going to be about a 15-20 degree difference between the heater core outlet and the rest of the cooling system. Honestly I wouldnt try that tho cause the heater core requires alot more coolant flow that the turbo will allow to flow thru it and it will probably seriously degrade the performance of your heater by how much it will restrict the coolant flow. the coolant lines from the throttle bdy would more than suffice. Also, there is a plug on ether each or maybe just one side of the motor that I know for a fact yoiu an thread in an air fitting from like an air ratchet or impact into. Dont ask, I just got board with a ka-t project one night.

[240man91]

really like it gose in to the water system i have an old ka i am going to have to look at that cause if theres one mayb there r two but will that work or will it take the floow of the water down? an yea i kinda of thanking the sane thing bout the heater core. cause of how big the lines are an how small the lines are on the turbo.an thank u man u r good help i have never turboed any thing befor. an in the past two months i have learned so much it is crazy.

[s13drifter88]

turbocharging is a very simple procedure. its just proper sizing of the turbo and proper fuel compensation and timing correction

[240man91]

yea that is very true thats y i went with the t25 cause lots of people have done this setup an the motor should handle it very well being all stock

[s13drifter88]

you'd actually be better with something more like 2871 or precision sc50. t25 will choke on a ka and actually be struggling to make full boost efficiently

[240man91]

y whould it struggl to make full boost an what kind of turbo is the 2871 an sc50? that might sound dum but member i am new to turbos

[biggie]

T25 doesn't flow enough for the KA, would be choking the KA exhaust.

[240man91]

wow i did not know that i though the sr flowed mor air than the ka?

[biggie]

wow i did not know that i though the sr flowed mor air than the ka?

KA flows more exhaust. The .4L makes a difference. Therefore the KA needs a slightly larger turbo than the SR. The T28 is the smallest I'd put on a KA and even it can be too restrictive in higher RPMs on a KA.

[240man91]

yea well i got this one now lol so i will just stay with it lol i do have a 3in ex so that should help a bit an a split dump on the turbo all i am waitn for is a z32 maf from this guy who lives nere by me an the to tune the ecu i have read alot of people go with a safc an a fmu. an then i have read lots of them people had problems to so i am getn my ecu tuned i think it is the best way to go. i dont want a dyno queen lol

[s13drifter88]

the t25 will will only flow about 22-23lbs a min of air. thats a little bit more than what the ka will flow on its own n/a. those engines will consume about 16-17lbs a min of air. that means the turbo will be kicking its own @ss just trying to make boost. the s15 t28 will flow 31lbs a min. that would honestly be the smallest turbo I would even consider putting on a ka. The gt2871r is made by Garrett. The SC50 is made by Precision Turbo. you can get a 2871 from frsport.com or a precision sc50 from 240sxmotoring.com if u already have a t2 manifold tho (manifold for t25) I'd go with the 2871 so you can atleast use your existing manifold

[240man91]

o ok the gt2871 is the long term for t28 off the s15 right an yea i have a isis turbo header. an i was think right now i can use the turbo i have now an when i get my hands on a t28 i can just bolt it right up i wouldnt have to retune would i cause i would still only b puttn out 6-10 lbs of boost it would just b a bigger turbo right

[s13drifter88]

yeah on a maf based setup you can do pretty much anything you want without having to retune unless you change the maf or injectors. the 2871 is much larger than the s15 t28. its a t28 with a 71mm compressor wheel and a better flowing, inconel exhast wheel