Is the EFR6258 too much for stock engine?
#1
Junior Member
Thread Starter
Join Date: Jan 2014
Location: Port Saint Lucie,FL
Posts: 476
Total Cats: 12
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
The background: 10AE, 153k miles, was supercharged at one point in its life, was used primarily for autox before I bought it, I track it a few times year + it's my DD, and has ~210 psi in each cylinder. I've had it for almost 10k miles. It runs strong, sounds great, and the engine has never given me any mechanical problems, so now I'm looking to boost it.
I have a MS3x coming this thursday. Will obviously lrn2tune before I attempt to run a turbo. duh.
I am looking at a EFR6258 setup with ARTech all the way back, ID1000's, yada yada yada, you know which setup I'm talking about...
Am I thinking crazy? I know this little engine can handle a decent amount of power, but is this too much? I'm not looking for 300+, I'm talking 2-250 max whp here. I read threads of people putting holes in their block with this thing, but what was the real cause? Bad tune? Detonation? Too much boost?
Will this turbo be ok at the lower HP levels I'm looking to go for? Or should I be looking at a different turbo?
For specs: BorgWarner EFR 6258 Turbo - Full-Race.com
Just some clarification is what I'm looking for, any input will help.
Thanks dudes.
I have a MS3x coming this thursday. Will obviously lrn2tune before I attempt to run a turbo. duh.
I am looking at a EFR6258 setup with ARTech all the way back, ID1000's, yada yada yada, you know which setup I'm talking about...
Am I thinking crazy? I know this little engine can handle a decent amount of power, but is this too much? I'm not looking for 300+, I'm talking 2-250 max whp here. I read threads of people putting holes in their block with this thing, but what was the real cause? Bad tune? Detonation? Too much boost?
Will this turbo be ok at the lower HP levels I'm looking to go for? Or should I be looking at a different turbo?
For specs: BorgWarner EFR 6258 Turbo - Full-Race.com
Just some clarification is what I'm looking for, any input will help.
Thanks dudes.
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/121721-efr6258-too-much-stock-engine-glo6vral.jpg?dateline=1409095357)
#9
Junior Member
Thread Starter
Join Date: Jan 2014
Location: Port Saint Lucie,FL
Posts: 476
Total Cats: 12
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
I know 99mx5 did, but what was his root cause of failure? I have been going thru his thread and it seems like he blew it up and just dove into a full out rebuild. Didn't dwell much on what happened lol.
I did see Brain comment on his timing and AFR's from his log files tho...
I did see Brain comment on his timing and AFR's from his log files tho...
#12
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
For specs: BorgWarner EFR 6258 Turbo - Full-Race.com
What the hell does this mean?:
**will not shuffle in twin turbo configuration like twin garretts** C
Last edited by JasonC SBB; 08-26-2014 at 11:02 PM.
#15
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
I have no idea why these goofy brits and aussies call it shuffle but just think surge with 2 turbos.
#17
Junior Member
Thread Starter
Join Date: Jan 2014
Location: Port Saint Lucie,FL
Posts: 476
Total Cats: 12
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
And a motor build is definitely not out of the question, just not happening any time soon. *Unless I have to do a forced upgrade like 99mx5 did...