Forced Induction Have a Couple Of Q's

Have a Couple Of Q's

Well my turbo kit is a definate go but i have to get some stuff taken care off first, like a new clutch. But i have a few questions for you guys who have had experience with a turbo.

1st: what kinds of turbos have you guys used. Because i was thinking about using a garrett t25 because it spools up faster but it provides less boost. but on the other hand i was thinking about using a turbonetics t3/4 because its a little bit larger of a turbo but it wont spool up for about 500rpm after the t25 and on a 6K redline there isnt much room for boost on the 1zz anyway.

2nd: What kind of BOV have you guys been using. I was thinking about the HKS just because i know its quality and i like the brand. But i want a BOV thats gonna give me that good turbo sound but i dont even know if thats possible with running such low boost numbers. Im thinking im probably gonna do 7psi maybe even 6psi depending on how the tuning factor goes.

It'll still be a while before i can start piecing the kit together since im changing positions at my job, which will mean more money, but i gotta pay off some CC's first, and like i said get my tranny fixed. Any input beyond that will be nice. I almost gave up and got a new car to work on but decided that i wanna finish what i have and do the best i can with it.

How much psi do you want to go? I think t25 is more than enough for stock 1zz block.

im prolly gonna go with 6 or 7 psi depending on how i feel with it when i get that far with the project.
do either of the BOV's give you the loud BOV sound? how much psi are you running vortex?

Personally - I like the HKS sharper and shorter sound shape, Greddy sound very similar but have a longer duration.

Here is a site with sample BOV clips: http://www.935motorsports.com/bovmediaX.htm - because everyone likes something different.

As for any major project - if you budget yourself and can afford it - turbo out the 1ZZFE to your heart's content. But I would rather save up the money and sink it into an IRA or some other retirement for playing with later.

wow thanks for the info there has been a lot of really good advice here. I do have another favor to ask, if anyone who has a turbo setup on their 1zz and a digital camera would take some very detailed pics and either post em here or email em to me
abusedbypoptarts@hotmail.com
i kinda want to get an idea of intercooler piping. What sizes of piping have you guys have success or failure with?

thanks a lot for the link i was making my BOV decision totally on the fact that i like the company HKS but i think that i like the greddy type s sound way better. And since both are priced around the same it wont really matter.

wow i was looking for prices on the greddy BOV and one of the links it pulled from dogpile.com was ebay and i found a crap load of greddy type s BOV's for 10.99 and all i could think of was "wow some idiot is actually gonna buy this piece of crap and think its the real deal, let alone think its actually gonna work"

We really gotta look out when buying parts.

Glad to see someone else is going to turbo. I currently am running a Garrat GT25R (http://www.optionimports.com/garrettgt25r.html). It has a flow rate for ~250hp and gives you a little bit more response and power then the T25. I currently run 8 PSI at sealevel because when I ran 10 PSI my engine exploded... Literaly For a BOV I use a TSI valve that is open atmosphere but I am going to switch it out with a recirculating system so that I don't have to rely on the Greddy eManage for anti stall support in a blow off situation. 6 PSI would be a good number to sit at on a 1ZZ. I would be probably run 6 PSI if I had a spring <= 6 psi for my 8 wastegate. I can't wait to see what you come up with, these cars are a complete blast to drive when they have boost Also another thing I really like on our cars is how loud the turbo spool is, since our exhaust manifolds face the firewall the turbo is literally sitting 2 feet away from you on the other side of it Makes for some neet spool noise. Good luck to you, post some pictures when you start putting your collection of parts togather.

well since im not getting a turbo kit im thinking that i'll prolly start by piecing together some of the essential stuff first like the electronics and ect
boost gauge
emanage
BOV
intercooler

i do have another question what are peoples opinions on a boost controller and what is a good one. I know blitz makes many different types. are they required, needed, or even really helpfull? Im not really sure where im gonna go to tune it because i live in Ok City and there are really NO good tuning shops around here at all and i know tuning is essential to not blowing the motor. would a boost controller help?

As for waistgates, it is better to have internal or external or low boost applications, should i be looking for a turbo that is interal or should i just go with external?

Man i feel kinda dumb for asking all these questions but im seeing how vamp is having firewall clearance problems and im wondering if anyone else has had problems with this as well?
Another question has everyone who has a turbo set up bought a new fuel pump and changed the fuel system to a return system?

Just trying to get an idea of everything i have to buy so i can get a budget.

another question, this time about exhaust. I have a body kit with dual exhaust ports so i got a custom Y pipe set up with dual exhaust and im wondering if having duals is gonna effect the turbo in a negative way. i'm sure i'll want to redo the entire exhaust setup with larger pipes when i do get the turbo, what size pipe should i go with and i could have one of the duals closed when i redo the setup and just leave it for the looks of the dual ports on the body kit



im really not looking forward to have a customer manifold made by any of the shops around here and i was wondering if anyone has tried using the manifold from either a 1zz mr-S or a 1zz celica to see if either will give adaquate firewall clearance. I would rather buy a pre-fabricated one then have one done custom. Then i could have everything else done custom from there.

I'd like some opinions on this
http://www.epsturbos.com/Turbo-Kits Toyota Corolla.product
it says for 99-02 but i dont see a difference between the 98-99 so if its good for 99 it should be for 98 as well. But it seems to be that same tsi kit that turbokits.com was selling that had lots of problems and they dont even sell anymore but im just kind of curious as to anyone elses opinions on this kit

Don't do a return line to your fuel system, just run emanage, and yes it would be great if you change your fuel pump. I am using a walbro 255ml fuel pump and currently running at 9psi, I had my turbo installed for almost a year know and it runs great. I think that a T25 is too small, but it would work, remember that the smaller the turbo the more heat is going to generate and less volume of air. Peaple say that if you are running 8psi with a big turbo is the same as 8psi with a small turbo, but nooooo... 8psi with a bigger turbo means more air volume per psi.