dot communist

So i picked up a t25 today for 50 bucks, i posted it on the bimmerforums with my intent of turboing an old e30, they all struck me down, and all i can think about is why a turbo that was designed for a 2 litre engine wouldn't work on a 2.5 litre engine

kleenef

should boost faster with a bigger engine on a smaller turbo

weaksaucedc2

hmm just less power

dot communist

After all the late night kiddies got off somone said that they have a couple t25's laying around, said they would sell me one for a twin turbo setup. i like the idea, now its research time!

Tippyman

Would probably run outta steam faster...

amg

It will work, it will spool faster, but just not make as much power.

zxswift

What ^ said, peak efficiency is gonna come too soon and then you'll be pushing hot air, but it's ok for a mild setup, don't see why not.

Scott-EP

A single T25 is WAY too small for a 2.5l

Twin T25's would be ok though.

zxswift

Probably get boost creep but it would still be possible. Twins might help but would be a lot of pipe, but pretty cool if you like "unique" stuff...

Scott-EP

You would over spin the turbo in no time unless you had a very big wastegate.

I almost always reccomend one bigger turbo but for a budget setup where you could get 2 of those cheap, it wouldn't be a bad idea. The piping could be made simple. There isn't a ton of room in a bmw for turbos so you will have to be creative. I made a turbo kit for one of my suppliers using my m3 a while back. It's tight in there