Scion XB 1NZ-FE Turbo build

[xbgod]

Yes the holidays have made things a challange. But here is where I am right now. I know you guys love the updates and the drama.

Yesterday we went on the dyno but not before fixing a leaky methanol fitting and the one way valve for it that wasn't so one way. But after those two things on to the MD500 we went.

Still not finished because I have the wrong spring in my Tial MV-S wastegate and could not do a damn thing about it yesterday.

So here is how it went yesterday:

3200 rpm with 4.3lb of boost = 132hp
4800 rpm with 16lb of boost = 282hp

WAs using 107 octane and meth

My red line is 7000rpm. so here is where I am untill sometime next week untill I get the new springs from Tial. I have done so much mods that in light of doing all this stuff I didn't even pay attention to the spring rate that was preinstalled in the wastegate. We were on the dyno and noticed that we couldn't get past the above numbers untill further inspection of the wstegate.

So next week new number will be available. The car sounds amazing with the 70mm TB and all my race engine stuff.

Oh and gets better............pushed the car down the ramps on the dyno set it to the side for about 10min. got back in to drive it around and some how the transmission linkage cables are either binding or broke from god knows what. Was getting dark and to close to beer-thirty to give a shit so back at on monday.

There is your update you impaticent bastards (LOL)

XBG

[cdydjded]

Originally Posted by xbgod

There is your update you impaticent bastards (LOL)

XBG

Statement of the year......

[H3LlIoN]

Originally Posted by xbgod

The car sounds amazing with the 70mm TB and all my race engine stuff.

I wanna hear it! Take a cam with you next time. :) Anyway, glad it's at least running...282 is above and beyond what most of our cars will see. I know it's nowhere near your goal, but it's at least something, so congrats on that, and good luck with the tranny/wastegate. Thx for the update.

[PETERPOOP]

sweet

[cali yaris]

I have the wrong spring in my Tial MV-S wastegate

What is the wrong spring?

[fnkngrv]

Originally Posted by turboecho2005

Jesus man... hope you realized that you put all that money into the wrong type of car... You could be driving a LS6 corvette with 1000hp...

This coming from a guy that decided to be unique as well and build the Echo the way you did? Come on now.

as stated....ANYONE CAN SPEND THE CASH AND PICK UP SOMETHING THAT COMES FROM THE FACTORY WITH X AMOUNT OF HP OR PERFORMANCE! Who will remember those people or even give them props for being original? Not a damned person. No one...notta....zip....zilch. geesh.

You will be remembered for doing something truly unique with your whip just like Aras.

[Parmas]

Originally Posted by xbgod

Yes the holidays have made things a challange. But here is where I am right now. I know you guys love the updates and the drama.

Yesterday we went on the dyno but not before fixing a leaky methanol fitting and the one way valve for it that wasn't so one way. But after those two things on to the MD500 we went.

Still not finished because I have the wrong spring in my Tial MV-S wastegate and could not do a damn thing about it yesterday.

So here is how it went yesterday:

3200 rpm with 4.3lb of boost = 132hp
4800 rpm with 16lb of boost = 282hp

WAs using 107 octane and meth

My red line is 7000rpm. so here is where I am untill sometime next week untill I get the new springs from Tial. I have done so much mods that in light of doing all this stuff I didn't even pay attention to the spring rate that was preinstalled in the wastegate. We were on the dyno and noticed that we couldn't get past the above numbers untill further inspection of the wstegate.

So next week new number will be available. The car sounds amazing with the 70mm TB and all my race engine stuff.

Oh and gets better............pushed the car down the ramps on the dyno set it to the side for about 10min. got back in to drive it around and some how the transmission linkage cables are either binding or broke from god knows what. Was getting dark and to close to beer-thirty to give a shit so back at on monday.

There is your update you impaticent bastards (LOL)

XBG

Congrats on your numbers although low for your build (you should be running above 350Bhp!

Re: the trans cables, I had mine changed two times because of overheating. Mine was always the shift cable mainly since this is the closest cable to the turbo downpipe. Check if the downpipe is touching the cables and if you can put some wrapping around the cables aswell

[xbgod]

Cali this is for you.......

Bar
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
PSI
4.35
5.80
7.25
8.70
10.15
11.60
13.05
14.50
15.95
17.40
18.85
20.30
21.75
23.20
24.66
Description
MVSBROWN
MVSGOLD
MVSBEIGE
MVSGREY
MVSGOLD/BROWN
MVSCOPPER/BROWN
MVSGREY/BROWN
MVSGREYIGOLD
MVSMAROON/BEIGE
MVSCOPPERIMAROON
MVSGREY/GOLD/BROWN
MVSCOPPER/MAROON/BROWN
MVSGREY/MAROON/BROWN
MVSCOPPER/MAROOI\I/BEIGE
MVSGREY/MAROON/BEIGE

each number represents a spring rate color below. This is how Tial does their waste gates.

Thanks Parma, will look at the same issue you had. I hope thats it and problem solved.

And yes will be in around 380 hp when done. That motor of mine is a beast and sounds awsome. It spools up quick with that new GTX style turbo. I have alot more power available just gotta change that spring and fix that tranny cable.

XBG

[cali yaris]

^ I know that. You didn't answer my question.

I'm using a 10 psi spring and I can run up to 30 psi. So what spring are you using now, and what's wrong with it?

[Parmas]

Originally Posted by xbgod

Cali this is for you.......


Thanks Parma, will look at the same issue you had. I hope thats it and problem solved.

And yes will be in around 380 hp when done. That motor of mine is a beast and sounds awsome. It spools up quick with that new GTX style turbo. I have alot more power available just gotta change that spring and fix that tranny cable.

XBG

I fixed it by replacing the cable, don't waste time repairing it. Also had to wait for weeks for the cable tru Toyota service.

380bhp with Nos and Turbo is easily achievable.

Can you give detail information about the head you are running now instead of gude? I am interested because I am running a stock head and I wish to know how much power it's components withstand, especially the valve springs.

[xbgod]

Cali,

mine has gold spring in it now. putting in a greygold one by recommendation of my tunner.

My engine is a beast it just keeps wanting to put out more. Never seen it act as powerful as now.

Parma I will defintaley order a new one from Toyota and if need be next day air it in.

Thanks dude.

XBG

[cali yaris]

^ I still don't understand why it's the "wrong" spring.

[xbgod]

The gold spring was only allowing me to get to 5.8 psi before it would shut me down. So in order to make more PSI we took the waste gate out of the equation for now and set up the boost controller through the Greddy boost controller only and by-passed the wastegate all together. The problem with that is boost creep so I'm not pushing the envelpoe untill I change the spring sometime next week. Also had to reroute a couple of vacuum lines to do so.

Hope this explains it a little better.

XBG

[Nexus1155]

Even if you have a lower wastegate spring, isn't the purpose of a boost controller to only allow the wastegate to crack open once it has reached the desired boost level? So even if you had the spring in with the boost controller attached, you would crack once the boost controller allows the air to flow into the wastegate regardless of whatever spring is in it?

I dunno if I am reading it wrong or am missing something, let me know

[cali yaris]

This is not making sense, sorry.

The spring determines the minimum boost you can run, not the maximum.
The purpose of a boost controller is to run more than that (and get to it faster).
How did you control boost without a wastegate?

The gold spring was only allowing me to get to 5.8 psi before it would shut me down. So in order to make more PSI we took the waste gate out

[xbgod]

Yes I understand that too. Which is why I think Tial preinstalled that smaller spring. But my tuner has something else in mind. So off to what ever he deems necessary.

I don't care what he uses as long as I get to 380hp. Which at this point I know I can.

Turning off the VVTI with my system has worked out great. no issues what so ever.

XBG

[xbgod]

Hope this clears up the spring issue:

The gold spring I had in the waste gate was a 4.8 and is only good for twice that amount of boost before it cant hold. (about 10psi)

The new combination is a Grey/gold which will hold upto 29psi. but the car must be able to make at a minimum 14.5lb of boost or you will never hold pressure.

Hope this helps peolpe understand a little better.

XBG

[cali yaris]

It doesn't clear it up. Above the spring's rating, the boost controller keeps the wastegate shut until desired boost is reached.

I'll say no more on this, looking forward to your results which I'm sure will be good.