FRM sleeves

[jacobuchanan140]

Assuming i get Mahle Gold Series pistons, are the FRM sleeves themselves strong enough to hold about 15 psi? I know the common problem is not being able to use forged pistons in the stock H sleeves but the Mahle ones work.

I'm only asking about the strength of the sleeves themselves so other comments aren't necessary.

[d112crzy]

They're plenty strong.

15psi with what turbo? You do realize that 15psi from a 14b is COMPLETELY different than 15psi from an hx40, right? I'd say close to a 100whp difference.

I've seen FRM sleeves hold 500whp.

The downfall with using Mahle's is that they don't last very long. The coating usually wears off after about 30k miles or so(from what I've read). I don't really know anyone that has had an issue with this before though.

[jacobuchanan140]

i was looking at a gt32 or similar

im looking for a midsize that will spool around 4k and i dont want to max the turbo out because of the heat issues that causes

[d112crzy]

But getting too big of a turbo and running it below its efficiency range is just as bad.

[jacobuchanan140]

i saw a chart of garrett turbos v. engine displacement and i think the gt32 was like a 2.0-2.7 liter range and good from like 200-400 hp or something

im not sure exactly what i want, just around 300whp ish and spooling around 4k

im trying to learn about trim and a/r so i can be a little more educated in my choice. do you have a suggestion for me?

[whitecoupe91]

don't know if this help but a 50trim .63a/r on an F22 spools 10psi at 3500rpms

[d112crzy]

i saw a chart of garrett turbos v. engine displacement and i think the gt32 was like a 2.0-2.7 liter range and good from like 200-400 hp or something

im not sure exactly what i want, just around 300whp ish and spooling around 4k

im trying to learn about trim and a/r so i can be a little more educated in my choice. do you have a suggestion for me?

No, that's a good turbo choice. I just like messing with peoples minds so they think a little more.

[jacobuchanan140]

No, that's a good turbo choice. I just like messing with peoples minds so they think a little more.

i appreciate the stimulation
i'm trying my best to read up and make my own decisions, i was really just unsure about the sleeves holding up. everything i've read says that the sleeves themselves are strong and my tuner said he hadn't done a setup like this but that he thinks it should work well.