How to avoid a big end bearing?????

[Minaj]

What are your guys ideas on how to avoid a big end bearing with a highly modifed car?????? ^^ There always seems to be a different reason.

[Guest hate-evoz]

keep tabs on engine, check it over weekly - Quality oil, no over reving, normal stuff like that....easy to do a beb if you boost it all the time.

[Kiwi_Fozze]

Yeah, keep it well serviced, look after it.

[pedro]

Avoid reving to red line...Change gear sooner...

[Stoffa]

Most Important: DONT MODIFY IT

theres many 200,000+ km subarus around that are still stock as a rock

[Marky]

The most well maintained, babied motor in the world will still die if it\'s knocking/pinging/detonating/whatever you want to call it. It puts a shock load down the rod and "knocks" against the bearing, sooner or later it gives up the ghost.

To be fair that\'s where the proper oil plays a part too, it\'s the only protection they have.

Most subarus die / do BEB\'s from either people seeing how far the needle will go around on the boost gauge, or being run on substandard fuel for the tune of the car, car starts to ping, eventually you have clunkclunkclunk... "WTB short block"

The ECU can try to protect you, but they are basically capable of getting a "perfect storm" of knock at times - combine someone running 95 (or 91) on a motor needing 98 (even some of the n/a ones) even in stock form, (normally) raised boost and a heat-soaked top mount intercooler and you will start to hurt it.

[Guest]

I though BEB was more of a corner fast thing in subarus but I really have no idea...

[Marky]

That too - if the pickup is starved of oil then no oil on bearing = more or less instant death. For most people this isn\'t really a concern but you\'re right

[rex-leggy]

Yea but on the road that shouldnt happen(sump running.dry) . I recken most bebs come from wrong fuel in nz ..... Detonation then beb lets go soon after.

Best protection is correct fuel/tune and regular services

[Joker]

need pretty good grip / slicks / semi slicks to induce oil starvation on any track/road event

I have never run a bearing and I have had my car 10 years in June (Twin Turbo Legacy EJ20R

[Minaj]

I\'ve been running 24 psi for almost two years on my v7 sti, i do give it hell every day i do thrash it heaps and it still hasn\'t blown on me im amazed lmao

[ODB]

[chappell943]

As has been said above, good quality oil changed regularly (5-7.5k) and as important if not more important is a great tune optimized for the fuel you use.

[loner]

Change your oil a lot in a turbo... personally I think 5 to 7.5 kms is way too much... I\'d go for 3000 km max on a daily driven car... if you are doing any track work, change the oil and filter before and immediately after.

[Joker]

see I done none of that and in the end it was a blown heater hose causing a Head-gasket that popped my Subaru motor swap cherry

although the track work I dad wasn\'t exactly strenuous, but it was numerous!

[chappell943]

 loner said:

Change your oil a lot in a turbo... personally I think 5 to 7.5 kms is way too much... I\'d go for 3000 km max on a daily driven car... if you are doing any track work, change the oil and filter before and immediately after.

A full synthetic being daily driven will no way break down that quickly, a lot of guys in the states get oil analysis done and the general consensus is 5-7.5 is fine.

[GC8E2DD]

Don\'t start the oil change argument again. Oil degrades. Change it frequently. Spend a few dollars to try and stave off thousands. People putting around driving to work probably shouldn\'t be worrying about running bearings anyway (assuming it has any oil in it at all). Thrash it, or compete in motorsport, and really ODBs advice is the one true answer. Add dry sump and ECU with safeties for extra prayer points.

[loner]

 chappell943']

[quote name='loner said:

Change your oil a lot in a turbo... personally I think 5 to 7.5 kms is way too much... I\'d go for 3000 km max on a daily driven car... if you are doing any track work, change the oil and filter before and immediately after.

/quote]

A full synthetic being daily driven will no way break down that quickly, a lot of guys in the states get oil analysis done and the general consensus is 5-7.5 is fine.

If my oil is black, I change it. I hate black oil.

[Stoffa]

I run edge 10w60 which is ment to last well but I still change it every 5000kms, thats on a 10,000km forged engine

[Timmah]

Don\'t fang it when the car is cold

[gotasuby]

If you don\'t start it, I can guarantee that you won\'t run a big end.

[newsuba]

Nah, being a Sooby, you\'ll do a BEB even if the car is up on blocks.

;D

[Marky]

^^ true

And I know some people who I swear can break car parts by looking at them funny

[Divine]

Don\'t do hellies without swapping the direction, or at all.

[Koom]

 gotasuby said:

If you don\'t start it, I can guarantee that you won\'t run a big end.

But if you don\'t start it, how will you know if the big ends are gone or not?