5sfe Pistons, when we add a turbo... Options

[Neil_Y]

when 5sfe add a turbo, Do we need to change the pistion for the turbo running?

becase factory is for NA engine turbo need more accumulator groove,right?
and 1 question, if the compr. larger or smaller,what thats mean?
and i saw the aftermarket pistion from ebay.
Pistons from ebay.

This post has been edited by Neil_Y: Apr 28, 2009 - 4:49 PM

[lagos]

Yes, but the difference in heat from the most commonly used turbos for the 5sfte setup is negligible at 15psi.

Not really.
A ct26 starts to run out of steam and generate a fair bit of heat at that boost level. If we had a proper compressor map for it, we would be able to see that more clearly. Thats why you dont really see a gain in horse power when you start going about 14-15psi on a ct26, but you do see a gain in torque . This is because the turbo is maxed out.

[_Jim_]

Yes, but the difference in heat from the most commonly used turbos for the 5sfte setup is negligible at 15psi.

Not really.
A ct26 starts to run out of steam and generate a fair bit of heat at that boost level. If we had a proper compressor map for it, we would be able to see that more clearly. Thats why you dont really see a gain in horse power when you start going about 14-15psi on a ct26, but you do see a gain in torque . This is because the turbo is maxed out.

Yes, a ct26 hairdryier at 15psi on a 5s (any motor for that matter) will in fact start to run out of breath at 15psi...BUT IS STILL Very safe to run at these boost levels.

As for the topic of heat.....this has been HEAVILY combated with the use of water injection. I recommend a Water Injection kit to ANYONE thinking about running a turbo on there setup. Most of the people running the 5sfte setup have there water injection to come on at 6-10psi.