Want to build costom turbo kit. Need advice from boosted guys!

[Bluevitz-rs]

Originally Posted by pimp my yaris

? Who is making performance valve springs besides Ferrea. 1000$ for valves and spring is a little stiff. And stock seem a little weak for my extended high RPM abuse.

There's Ferrea valves for sale in the FS section... have a looksee

[cali yaris]

I've been running stock valves for quite a while with pretty tough track days included. We did put stiffer springs on them so I could rev to 7300.

I'll check our sources and see if anyone else is making valves. You want stock or over-size?

[pimp my yaris]

Im just looking for valve springs. What Brand are U running Garm. And do you sell them?

[cali yaris]

bluevitz, those oversized valves would be a substantial project on the head, I'm sure you know that; unless someone can do machining and such themselves.

I don't know what springs we have in my car, but Ferrea is making us an upgraded valve spring kit that supposedly would be ready by now. You know how that goes.

I will follow up with them on Monday.

[Blown_xa]

From assembling a few different Toyota motors, I can tell you that the Scion tC motor has the same dimension valve springs. So I've thought about just purchasing upgraded springs ( advertised for the tC) and using those.

I guess I have lucked out, using stock head and my limiter is set to 7300rpm. I've even slammed it in the wrong gear a few times and the rpm shot well past what the tach shows (8000 rpm). I'm pretty sure it was about 9000 rpm once when I was at the dragstrip and put it in second instead of 4th. I think the only reason I didnt get valve contact was because maybe the valves cleared the lower compression pistons even with float. I did hear a noise afterwards which scared me for a few minutes, until I figured out that my power steering belt flipped upside down! Lol

[Viperoni]

Originally Posted by Blown_xa

I did hear a noise afterwards which scared me for a few minutes, until I figured out that my power steering belt flipped upside down! Lol

You had this happen to you too? When it happened to me, I couldn't believe it.

[Blown_xa]

Originally Posted by Viperoni

You had this happen to you too? When it happened to me, I couldn't believe it.

Yea, I don't even understand the physics behind how that can even occur.

[Viperoni]

Originally Posted by Blown_xa

Yea, I don't even understand the physics behind how that can even occur.

Me neither.
When I saw the belt grooves staring at me, I had to do a double take. I KNOW I put the belt on properly because I saw the "Goodyear gatorback" logo looking at me lol.



FWIW, My motor's also seens over 8k from a couple of mis-shifts, still works good :)

[Parmas]

Originally Posted by Blown_xa

From assembling a few different Toyota motors, I can tell you that the Scion tC motor has the same dimension valve springs. So I've thought about just purchasing upgraded springs ( advertised for the tC) and using those.

I guess I have lucked out, using stock head and my limiter is set to 7300rpm. I've even slammed it in the wrong gear a few times and the rpm shot well past what the tach shows (8000 rpm). I'm pretty sure it was about 9000 rpm once when I was at the dragstrip and put it in second instead of 4th. I think the only reason I didnt get valve contact was because maybe the valves cleared the lower compression pistons even with float. I did hear a noise afterwards which scared me for a few minutes, until I figured out that my power steering belt flipped upside down! Lol

What compression were you running? Wow 9000rpm on stock head is a very nice dream hey !

[Blown_xa]

Originally Posted by Parmas

What compression were you running? Wow 9000rpm on stock head is a very nice dream hey !

8.5:1 Is the compression ratio.
I was at 7300rpm in 3rd and put it in 2nd. Car sounded like a sports bike. I just did the math, there is a 31% difference in rpm drop between 2nd and 3rd gear ( xA trans). So 9563rpm is what it hit considering I shifted from 7300rpm.
This happened about a year ago.

[pimp my yaris]

Got some real work done today. I had to stop I did not have a 8mm by-hexagon socket to remove my head bolts. Ordered one today.

[pimp my yaris]

more pics

[cali yaris]

mmmm, a build thread... thank you.

[Bluevitz-rs]

My motor saw about 8600 once from a miss shift from redline in 3rd back to 2nd passing two gravel trucks. 3 valves did not survive and it sounded like someone threw gravel IN the motor. Scared the shit outa me. But the funny thing was it never set a code and had no choose but to continue driving it for the next 250km on my trip LOL.

[suckerface]

Slightly off topic, but where in Chicago are you Pimp? I'd love to come check out your work and offer any assistance on the weekends if you need it, and with being in Milwaukee, it's only a 2-3 hour drive. I want to do a turbo build myself eventually, but want to see things first hand to get a better understanding of what all is involved.

[pimp my yaris]

Originally Posted by suckerface

Slightly off topic, but where in Chicago are you Pimp? I'd love to come check out your work and offer any assistance on the weekends if you need it, and with being in Milwaukee, it's only a 2-3 hour drive. I want to do a turbo build myself eventually, but want to see things first hand to get a better understanding of what all is involved.

Thats funny. I have relatives in Greenfield and I was just there for christmas with my car. I bought my car in Milwaukee at Heiser Toyota during the cash 4 clunkers rush.
I live in Lake in the Hills. It is in the extreme north and west end of the Chicago burbs. You are welcome to check it out when I get her back together again.

[pimp my yaris]

Well I got the head off today and it looks good. I dont see any bent valves or impact marks on pistons. I even put it upside down and fill the head chambers with water. None leaked out. So its still likely I spun a rod bearing. I guess I will be pulling the rest of the motor this weekend. I cant believe there was no metal chips in the oil with all that noise.

[fnkngrv]

might as well consider buying another motor and keep your top end for a rainy day if that is the case...how many miles is on your motor again? I take it you are going to pull your bottom end apart and go from there? At least you didn't have your block turn into swiss cheese like mine.