Quote:
Originally Posted by Madax123
Hi guys,
I have a forged internals (10.5:1 pistons, forged rods etc) turbo'd BRZ that now unfortunately is burning oil after 21,000 miles (or 35,000km). Leakdown showed a 22% leak in cylinder 3, other cylinders ranged from 8-15% but compression is 150-155psi all round. It is also has greyish smoke whenever I do a WARM start, but the car drives pretty normally otherwise.
I am potentially looking at rebuild options:
- going forged internals again (but I am scared that forged pistons has reduced the longevity of the motor)
- new OEM shortblock with forged conrods and running moderate power on E85
- or a used longblock (but they are going for 3-4k in Australia...)
Can anyone vouch for good longevity of forged motors? Or would going for a new OEM shortblock with forged conrods be the best way to ensure reliability for a daily?
Thx!
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From one of the very reputable UK tuners.
Many consider a forged engine to be "the silver bullet" that it fixes all problems, is infinitely reliable and will last forever. It could not be further from the truth, a forged engine needs to be treated with greater respect than the above package or a stock engine. It must be properly warmed up and cooled down, serviced and maintained far more regularly, taking on a forged engine is not something to take lightly, properly consider if it meets your needs or not.
You need to go back to stock pistons, new shortblock, Forged conrods and then boost.
Read this thoroughly.
https://www.fensport.co.uk/pages/for...e-build-prices
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