Ford Focus ST Forum banner

1 - 13 of 13 Posts

·
Registered
Joined
·
5 Posts
Discussion Starter #1
Hello, I’m relatively new here and would love some incite. I recently got my Ford Focus ST (ST3) and did some bolt ons and an exhaust and got it tuned (stratified). I got the car at 36,xxx. and have 41,xxx miles on it. Long story short I melted a hole through one of my piston heads and am looking into buying a new built short block. I need some help figuring out who sells the best built short blocks. Would love to hear what people have heard and what people are running. Thanks!
 

·
Registered
Joined
·
227 Posts
Just an FYI because you sound like you might be a bit green with cars, if you melted a piston because of a bad injector, bad tune whatever that won't be corrected by a built shortblock. If you are looking to go bigger on power by all means a built shortblock is a step in the right direction. If you just want a good running tuned car I would be looking for a low mile stock longblock for like $1k-2k. Good luck.
 

·
Super Moderator
Joined
·
7,567 Posts
Hello, I’m relatively new here and would love some incite. I recently got my Ford Focus ST (ST3) and did some bolt ons and an exhaust and got it tuned (stratified). I got the car at 36,xxx. and have 41,xxx miles on it. Long story short I melted a hole through one of my piston heads and am looking into buying a new built short block. I need some help figuring out who sells the best built short blocks. Would love to hear what people have heard and what people are running. Thanks!
I would agree with @Stardog, first find out what was the cause of the piston failure, then make an informed decision on how to proceed. A used long block will save you much money, but, if you are looking to add big power like with a big turbo, look into building a motor or buying one. In any case, in answer to your question about where to buy, check out Speed Perf6rmanc3.

 
  • Like
Reactions: SSgtjrobertson

·
Registered
Joined
·
5 Posts
Discussion Starter #5
What were you doing when the engine went? did you happen to give it full throttle in a high gear, at low rpm?
Racing some buddies goin to get food. I was around 3.5k rpm every pull. I parked got my food n then about halfway home I got 2 codes (misfire cyl 4, misfire under 1k rpm)and engine ran rough and misfired a lot.
 

·
Registered
Joined
·
5 Posts
Discussion Starter #6
Just an FYI because you sound like you might be a bit green with cars, if you melted a piston because of a bad injector, bad tune whatever that won't be corrected by a built shortblock. If you are looking to go bigger on power by all means a built shortblock is a step in the right direction. If you just want a good running tuned car I would be looking for a low mile stock longblock for like $1k-2k. Good luck.
I work for a tuning company and am getting a custom tune by them. Going big turbo In the future so I thought to myself might as well built my motor now since I’ll have it apart. Thanks for the advice!
 

·
Registered
Joined
·
5 Posts
Discussion Starter #7
I would agree with @Stardog, first find out what was the cause of the piston failure, then make an informed decision on how to proceed. A used long block will save you much money, but, if you are looking to add big power like with a big turbo, look into building a motor or buying one. In any case, in answer to your question about where to buy, check out Speed Perf6rmanc3.

Thank you!
 

·
Registered
Joined
·
301 Posts
I have a 2.0 built long block on a stand in my garage. Not sure what I am going to do with it. Mahle pistons and Manley rods. New stock every thing else. So just adding it up in my head I have $4k in it. Let me know what your market research shows for your situation.
 

·
Premium Member
2018 Ford Focus ST1
Joined
·
692 Posts
Racing some buddies goin to get food. I was around 3.5k rpm every pull. I parked got my food n then about halfway home I got 2 codes (misfire cyl 4, misfire under 1k rpm)and engine ran rough and misfired a lot.
Few questions for my own enlightenment (and so I don't do what you did):
What gear were you starting the pulls in?
What oil are you using and how long had it been since it was changed?
Were you running a non-factory intercooler, and if so, which one?

Thanks.
 

·
Registered
Joined
·
5 Posts
Discussion Starter #10
Few questions for my own enlightenment (and so I don't do what you did):
What gear were you starting the pulls in?
What oil are you using and how long had it been since it was changed?
Were you running a non-factory intercooler, and if so, which one?

Thanks.
Starting pulls in second and third gear. Full synthetic oil Changed the week prior, and running factory intercooler.
 

·
Premium Member
2018 Ford Focus ST1
Joined
·
692 Posts
Thanks. How many pulls did you do and do you have any idea what your charge air temps were on the final one? With the factory intercooler, I bet it was 160+.

Good luck on the rebuild.
 

·
Registered
Joined
·
6 Posts
This sounds so incredibly wrong.
I shift my ST at 5k and do burn outs at every possible opportunity.
My car has 50k + miles and I beat it Lomé it owes me money.
The whole piston / hole thing has me suspecting some not admitted tune or gas octane omission.
 
1 - 13 of 13 Posts
Top