orginal yaris 2005 1,5 turbo 150hk

[mrloseth]

hello...
today i found out what the name on the turbo on my yaris, the spec are:
IHI spec rhf4 parts:03061-16-1246 1702 yw602

i have tyed to google som info but i havent yet found out the spec..?

[mrloseth]

Originally Posted by mrloseth

hello...
today i found out what the name on the turbo on my yaris, the spec are:
IHI spec rhf4 parts:03061-16-1246 1702 yw602

i have tyed to google som info but i havent yet found out the spec..?

http://www.ihi-turbo.com/turbo_RHE-RHF.htm

[CASTREX]

Yep... that's the one!

[shtou]

removing the cat from 1.8 TS standard yaris and install a new exhaust helps the acceleration?

[CASTREX]

Originally Posted by shtou

removing the cat from 1.8 TS standard yaris and install a new exhaust helps the acceleration?

The removal of a CAT will give you a very small gain...

This is what I did with very good results:

I removed only the secondary cat (our car has 2 cats) and left the primary cat alone, that way the car will pass emmissions test.

Then I removed all the exhaust from the primary cat back and replace it by a custom unit. I used 2.25" pipe, a resonator and a rear chambered muffler.

Sounds great and I felt some good gains on the top range mostly.

[mrloseth]

Originally Posted by CASTREX

Yep... that's the one!

i recived the o2 sensor fouler today, so now i can bye an complete 2,25" from the elbow:) and hope fore more power:) im wondering if the boost will go up??

[CASTREX]

Originally Posted by mrloseth

i recived the o2 sensor fouler today, so now i can bye an complete 2,25" from the elbow:) and hope fore more power:) im wondering if the boost will go up??

The boost will not go up. The boost level is controlled by the internal wastegate spring on the turbo.

2 main benefits you will get from the free flowing exhaust...

Better turbo spool up ( reaction time ) and you will pick up a few HP's mostly on the higher Revs...

[mrloseth]

today i recived my car back from the work shop, so now i have a brand new engine, whats the best way to brake in the engine? when can i use the full engine power? any tips? :)

[CASTREX]

Originally Posted by mrloseth

so my mind whas thinking of 0,65 bar boost and complete exhaust from elbow without cat, what do you think? would it be a risk doing so?

The car won't lean out because of the exhaust, don't worry about that.

If you raise the boost to 0.65bar the car will definitely lean out and you will be on risk again.

You need to understand that the ECU in your car was programmed by TRD to run very low boost... You can raise your boost as long as you have some way to properly tune your fuel and timing. You will need a programmable ECU or piggy back to do that, such as a Greddy emanage or SAFC, AEM FIC.


Another option that you have in order to raise the boost to 0.65 safely, is using a water/ meth injection system. Usually a water meth set up will suppress the knock an will allow you to raise your boost level with no further tuning.