I think what he means is the length of the piping for a FMIC so that people can get that "grinning look." I agree with you that the IC would be a bonus but to run the amount of piping from the manifold to the FMIC and then back would be crazy especially with the limited amount of space in the engine bay. Given that showoff setup I'm not too sure how the pressure would be able to maintain itself consistently through out the bends of the absurd amount of piping.

Anyway props to anyone that runs a FMIC on the xB. I mean after all the xB's have personality, now all they need is a grin. :D

BTW if you know so much then you should build a kit for us. Not trying to be offensive or anything, I just want someone to release a turbo kit already.

 

As a matter of fact I am building a system, too bad its for the 2ZZ GE that's going in the xB :)

I am not trying to step on toes here either, but I've seen too many people get burned on ____ quality kits, myself being one of them. If I'm gonna represent with an xB then the parts better be the best they can.

 

Good luck boosting the 2ZZ, With 11.5:1 compression there is no room for error.

 

You can always lower the compression several ways. :wink:

 

just from reading teddy's posts, i can tell he knows what he's doing. so i am a lot more confident about his turbo kit now.

he is making something that is preset, and ready to install and run. it has everything you need, and doesn't require extra tuning, which can cause problems with reliability and performance. the boost is pre set, the wastegate is probably built onto the turbo (as is common with smaller turbos) and all the hoses and such will be included and will fit fine. diameter of piping and intercoolers, etc...isn't important.

try to think outside the box here, you guys. why use an IC if you don't have to? it doesn't make sense. the IC cools the air going to the turbo, the more boost and the bigger the engine and turbo, the more an IC helps. with this small engine, the intercooler will probably just add lag and not help top end enough to make it worthwhile. it will also add a lot more piping and weight to the engine area.

a piggyback computer will be fine for this application. it will adjust timing, and air/fuel levels according to the TPS (throttle position sensor) and the engine RPMs. with the right tuning, this will be very effective and will work well. keep in mind, you guys will need to run 91 octane because the car can be tuned to run faster without detonation if you use higher octane. if you insist on 87 octane, the turbo kit won't even be worth it because it will be detuned so much that the benefits will be negligible.

anyway, even though i have 19s and airbags, it would still be cool to have a more powerful engine. even a heavily modded scion isn't a race car, so i think you can have mild performance and showcar stuff at the same time.

 

If you really want an intercooler, the way the xB's engine compartment looks, why not have a top mount intercooler that way the pipings are not toooo long. Add a functional hood scoop and open up the grill.

 

that's what i would do if i had an IC with the 1NZ-FE-t

 

I would like to see a water cooled turbo rather than oil cooled turbo though.

 

Water cooled would be nice but i don't thinki it would really be practical for a everyday street use. Now a top mount IC like in the WRX's would be nice and efficient. Only thing is then we have to get a hood scoop (good for performance and looks but bad for the budget)

Also I agree with Eric on the the Maverick kit. It's "for dummies." For those might "blow themselves up" from messing around with the tuning (that most know nothing about) it's safer with the Stage 1 kit. Now once you get into the higher stages thats a when you can complain if it has no tunability.

 

Actually, all turbos use oil for lubrication, and to some capacity, for cooling. Water/coolant is used on some turbos to provide additional cooling. You will most often find OEM turbochargers with water cooling because they have to take into account the possibility of most owners not letting their turbos cool down after use. Without water, you will have to be a little bit more religious about cooling down your engine, especially after long and/or hard use. Usually, just taking it easy for the mile or two before you reach your destination is enough, and almost negates the need for a turbo timer, although having a turbo timer never hurts.

Also, with correct turbo sizing, even a straight T3 can be made to spool quite well on a smaller-displacement motor. Granted, boost onset might come at a few hundred rpm later than a smaller turbo (assuming that smaller turbo is also properly-sized for the same motor), but with today's quick-revving motors, coupled with modern turbos, lag is almost a non-issue, and is nothing like the turbo cars of yesteryear. I was actually planning on running a straight T3 turbo on a Scion kit, and probably still will if I ever get around to continuing development.

 

Diameter piping is VERY important. For example explain compressor surge and backpressure. How much does the head flow? Will the turbo flow? I don't doubt the kit will have all the pieces necessary to make it a complete kit. You still need the right parts. Don't plan on going turbo unless you go with 91, I agree that's just retarded. I would definately go with a top mount if possible, but I'm not for cutting my hood. I'm not sure what weight you are talking about adding here but for the boost you will be running you can definately get away with Al piping not steel. You won't have to worry about running over your pipes because of the boost :) But if you are going turbo without an IC you are asking for trouble. The engine compartment doesn't breath well from the looks of it and the fact I can hear my fan kick on all the time and I'm just cruising. I can definately do some thermocouple testing if people are interested. Up to 6 inputs. Turbos generate massive amounts of heat which will be transferred to the head, maybe a venturi plate ala hondata. Detonation is going to happen on Cali gas.

 

there is also room to put a side mount like the mazdaspeed protege or audi/vw 1.8T engines have, in the top passenger part of the engine. piping will be short and you will have cool air coming in from the front. and you don't have to cut your hood. just a thought.

 

Hmmm... just wanted to try uploading an image into the scionlife galleries.
Here's what I was working on in terms of a top-mount ic for the Scion. Unfortunately, such a design would only work well on the xB, and it's not very efficient (from an engineering standpoint) to have a design for one engine work only in one chassis, but not on the same engine in another chassis. That, and it's not cool to exclude xA owners. :)

 

Van, cool sketches. Based on your sketch, no need to alter the hood for hood scoop... Very Cool. I like it.

 

i think water cooled would be better, most stock turbo'ed cars are water cooled for the reason van explained. my sr20det is like that. as far as the i/c goes i'd rather have front mount cause it would run a lot cooler instead of getting all the rising heat off the motor since hot air goes up. just stick in a nice t28 ballbearing turbo in there and everything would be fine. a hks gt series ballbearing turbo would be even better.

 

i think van's idea w/ the i/c might work out too. just try different ways to see what works best.

 

hummmm......u know i could have sworn it cools air comming from the turbo not into the turbo... =0)

 

i meant the air going to the engine from the turbo. sorry.

i have been thinking that van's idea is a good one. i don't think the heat from the engine will be as bad as you think, espeically running low boost. and a front mount intercooler will look cool but not be as fun to drive compared to a stock engine.

 

The cool thing about the ic setup as I designed it is that you can use it with existing turbo kits such as the one from HKS. Just use it in lieu of the stock hot pipe that goes from the turbo, over the valve cover, into the throttle body. You'll have to fab up the piping to adapt it yourself, but you can usually do so by sectioning the existing pipe and fitting the ic in between. As for cores, check out www.bellintercoolers.com

 

From the looks of the posts here it would seem as if people are not talking from personal experience, ie owning a turbo vehicle.

I would take this info with a grain of salt.