Sleey0's Turbo Projec!

[Parmas]

Originally Posted by sleey0

Just wondering if the ECU woulod re-learn the C:R if it was minimally changed , say like 10:1 iinstead of 10.5:1.

All I want to do is beef up my internals a bit to hit 12psi to 1bar reliably,

I called AEM, CP, and ARIA but all are closed on weekends and will have to wait for answers lol.

I should just yank my cars ECU and send it to CTScott to play with. He could get it in constant open-loop then none of this matters lol.

Thanks for listening,
Wes

I think the main issue related with the stock ecu isn't the pistons or rods but the turbo setup itself.

Let me explain:

- Pistons with lower compression mean that they differ in height (by few mm) versus others with more compression. Now if you change the pistons to a lower compression, you might be aware that the less compression means a bigger combustion chamber since the piston is effectively going up the same height. The bigger the chamber, the more the engine needs air and fuel to make a good bang.

-If you remain with the stock ecu, the ecu doesn't know that the engine needs more air and fuel to make a good mixture in the chamber which will result in startup, knocking and engine dying issues since the ecu is giving the same amount of fuel as if you are still at 10.5:1.

-Regarding the turbo setup, I am one of the guys that don't vote to remain with stock ecu because of the much issues with turbo systems. I don't mean it can't be done but will probably cost you more money and patience to have good results.

As xbg said you should check other threads and you will surely find your answers.

[sleey0]

Originally Posted by Parmas

I think the main issue related with the stock ecu isn't the pistons or rods but the turbo setup itself.

Let me explain:

- Pistons with lower compression mean that they differ in height (by few mm) versus others with more compression. Now if you change the pistons to a lower compression, you might be aware that the less compression means a bigger combustion chamber since the piston is effectively going up the same height. The bigger the chamber, the more the engine needs air and fuel to make a good bang.

-If you remain with the stock ecu, the ecu doesn't know that the engine needs more air and fuel to make a good mixture in the chamber which will result in startup, knocking and engine dying issues since the ecu is giving the same amount of fuel as if you are still at 10.5:1.

-Regarding the turbo setup, I am one of the guys that don't vote to remain with stock ecu because of the much issues with turbo systems. I don't mean it can't be done but will probably cost you more money and patience to have good results.

As xbg said you should check other threads and you will surely find your answers.

Thanks for the info!!! Really good stuff.

And XBG, the learning-ECU issue when changing pistons and lowering C:R was from Garm.

MODS if XBGod is right, and all pieces of info about rods, pistons, the ecu, and ways around it (that are being tried), and C:R are already in another thread.

THEN PLEASE CLOSE OR MERGE!!!!

Thanks.

[sleey0]

Originally Posted by Parmas

I think the main issue related with the stock ecu isn't the pistons or rods but the turbo setup itself.

Let me explain:

- Pistons with lower compression mean that they differ in height (by few mm) versus others with more compression. Now if you change the pistons to a lower compression, you might be aware that the less compression means a bigger combustion chamber since the piston is effectively going up the same height. The bigger the chamber, the more the engine needs air and fuel to make a good bang.

-If you remain with the stock ecu, the ecu doesn't know that the engine needs more air and fuel to make a good mixture in the chamber which will result in startup, knocking and engine dying issues since the ecu is giving the same amount of fuel as if you are still at 10.5:1.

-Regarding the turbo setup, I am one of the guys that don't vote to remain with stock ecu because of the much issues with turbo systems. I don't mean it can't be done but will probably cost you more money and patience to have good results.

As xbg said you should check other threads and you will surely find your answers.

Garm is the 1 that told me changing the ratio will mess up the stock ecu n then you would need stand alone.

If we could lower the ratio and use a piggy back that would work perfect for my situation.

But no 1 has figured out the closed loop situation. C t scott said he was gonna look at it, but IDK.