Custom or Kit Turbos?

Wich one would be a better setup for a daily driver, which one would be able to have more power and which one would be able to hold longer?

custom will always make more power and be cheaper than a set kit... how reliable it is depends on how well you put it together and the quality of the components you use, if you're lazy and don't know much about turbo's and stuff, get a kit and get it professionally installed

Alrite, but I heard sumthing about only one of them, custom or kit, would be able to use the boost contoller or be able to be increased or tuned or w/e i forgot maybe sumone knows what im talkin about.

you can use a boost controller with custom OR kit

hehe...i'd let a pro take it from here

so what parts would I use for a ood custom kit that i would be able to keep a/c, and steel have a decent amount of power and be able to be at like 10 psi, with a b18c1 with upgraded internals?

The FMU's that come with some kits are usually set up for 6-7psi of boost (the Greddy for sure) so if you're planning on boosting more than that you'll need to get a better engine management unit (ie Hondata.) But it really depends on what motor setup you have, whether you build the block to handle more boost or not, if you don't build the block then I'd say jsut use the FMU that comes with it until you do build (if you go the kit way). But also with the kit you might be stuck with how much the turbo is efficient, how many psi it will boost up to, and how much the wastegate will go to before blowing off. And the kit manifolds would only be compatible with a couple other turbos if you decide to upgrade the turbo down the road. With a custom kit you'll be able to get the right turbo for the power you want but with the kit you'd be limited to the turbo or turbo family the manifold you get comes with/works with. But you'll want to get it tuned no matter what you go with; more reliability and more power out of the kit.

Way to break it down CivicSpoon

Oops...was writing while the other post were up I guess. There are mainfolds around that would let you keep the AC. Think that www.fullrace.com or whatever has some on their site that would let you keep it. But if you're wanting to go 10 psi I'd say go custom and get Hondata for an EMS (AEM EMS is way more expensive and I know a few people with it and they have nothing but problems.) And go with at least a T3/T4 turbo for good spool and boost, anything smaller wouldn't boost fully thru your rpms, i mean it'd max out too soon.

WASTEGATE regulates psi
uberdata or turboedit will work fine

anyone know of any kits that come with, t3/t4 or do u have to do that one your own? and is that about the highest youve ever seen a kits fmu get too was loike 6-7 psi, and coudlnt yu juss buy a hondata and use that with the or would it not work

turbonetics
revhard
drag
and many more kits use t3/t4 hybrid

fuel management has nothing to do with boost pressure. hondata is a good engine managment unit. without the boost option on hondata it's pretty much a basic ecu with tuning abilities. if you don't need a stand alone management unit then go uberdata or turboedit.

DRAG turbo kits use T3/T4 turbos, don't know of any other from personal knowledge. I'm sure there are some kits that have the fmu for more than 6-7psi, but again I have no personal knowledge. On turbo-kits.com they have the FMAX listed as 8psi (i'm sure the kit itself will do more than that maybe that's the FMU max?) and the rev hard one says 15+ so maybe try to find more info on those. Oh yeah you could definently use hondata or what have you with a full kit.

lol... yeah what Beyond said

I'm sure there are some kits that have the fmu for more than 6-7psi, but again I have no personal knowledge. On turbo-kits.com they have the FMAX listed as 8psi (i'm sure the kit itself will do more than that maybe that's the FMU max?) and the rev hard one says 15+ so maybe try to find more info on those.
WASTEGATE:
A wastegate is used to control boost levels by allowing exhaust gasses to bypass the turbo, thereby decreasing the volume of exhaust available to spin the turbo's turbine which will limit the amount of boost created by the compressor. The wastegate has an internal spring and diaphragm which boost pushes on, these springs are rated for different psi levels.

The FMU is what the fuel maps are on, if your fuel map is set to only 6-7 psi then you're motor will run like shit (too lean) and you're more likely to get detonation.
I never said the fmu regulates how much psi your turbo kit will run.

you tune your fuel according to boost not the other way around. you don't tune your boost according to fuel. you set your boost level and from there you fine tune from the management system. you can't just set your fmu to run at 6-7 psi and expect it to be the same on every engine setup because 6-7psi is different on every motor.

Ok you're clearly misunderstanding what I'm saying. What I'm saying is that you can't run your turbo at 10psi and have an FMU that has it's fuel maps for 6-7psi; and expect it to run perfectly; even if you tune it. Like i said before it's going to be lean as hell, that's why everyone i've ever talked to and every place I've ever read from says to upgrade your engine management (fuel management) if you're running more boost that your fmu can handle. Infact I've clearly been told and read that you shouldn't be running a kit fmu at all if you're boosting more than 8psi straight out. Maybe you should go back and reread what I've said before because in every post you've claimed that I said something that I infact did not. I never said anything about tuning your car with boost clearly you tune the fuel/air ratio. Let's wait and what you misread now...

but that's exactly what a FMU is for is to manage your fuel going into your motor. when you purchase a FMU such as an apexi safc there are no SET fuel maps for it. you use such a device to modify your air/fuel ratio and to change your fuel curve. as for a stand alone unit your fuel curve is done by programming through a hondata/aem ems etc.

I'm not talking about an FMU as in AEM EMS, hondata, or V-AFC, I was refering to fmu's such as the Greddy blue box, vortech fmu, stuff like that that are preset. That's my fault I should have been more clear on what I ment.

misunderstanding since you were talking about kit and i was talking about custom.

So whatever the kit says the psi max is thats wat it is before you have to upgrade your turbo or is that the max the FMU can handle?