Anyone blown a stock boosted motor yet?

[mixedjuice]

Originally Posted by King Tut

Their warranty says that they can't be run in colder temps yes.

oh NO!!!!

Anybody else have any suggestions for an Alaskan BRZ hoping to supercharge or turbo?

I don't plan on driving in the winter, but as far as cold temperatures - Alaskan has plenty of that. Well Juneau where i am from is mostly a rainforest, but nonetheless cold

[iJeff]

Originally Posted by mixedjuice

oh NO!!!!

Anybody else have any suggestions for an Alaskan BRZ hoping to supercharge or turbo?

I don't plan on driving in the winter, but as far as cold temperatures - Alaskan has plenty of that. Well Juneau where i am from is mostly a rainforest, but nonetheless cold

Jackson Racing and Kraftwerks are supposed to be fine.

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[350matt]

so out of a sample of 190 ( 24+166 I'm not couting the 344 that aren't boosted)
24 went boom so 8% failure?

thats a pretty high failure rate
what would be useful to tally up is how much power / boost the 24 cases were running and with what hardware

[Tectoniic]

Originally Posted by 350matt

so out of a sample of 190 ( 24+166 I'm not couting the 344 that aren't boosted)
24 went boom so 8% failure?

thats a pretty high failure rate
what would be useful to tally up is how much power / boost the 24 cases were running and with what hardware

A much higher percentage of the blown engines were right away when everyone was still figuring out the engines limits. I think it was as high as 1 out of 6 or 7 boosted engines was blown according to the poll. It seems to have gotten a lot better since then.

I think the first page of the thread has a decent amount of info on most of the blown cases.

[Books]

Originally Posted by Astroboy

That sprintex charger is holding up pretty good. I hope my avo holds up that well. How many miles in total on the car?

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I have about 55k miles and installed my supercharger at 30k

[shiumai]

Originally Posted by 350matt

so out of a sample of 190 ( 24+166 I'm not couting the 344 that aren't boosted)
24 went boom so 8% failure?

thats a pretty high failure rate
what would be useful to tally up is how much power / boost the 24 cases were running and with what hardware

that's assuming that (mostly) everyone with a boosted twin or blown engine posts on this forum and answers the poll. i wonder what the percentage of total twin members (total twin cars sold worldwide) are members of this particular forum. granted, those that boost are probably more likely to search forums for information than the 'regular' twin owners.

[iJeff]

Originally Posted by shiumai

that's assuming that (mostly) everyone with a boosted twin or blown engine posts on this forum and answers the poll. i wonder what the percentage of total twin members (total twin cars sold worldwide) are members of this particular forum. granted, those that boost are probably more likely to search forums for information than the 'regular' twin owners.

There are quite a few blown motors that aren't listed here.

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[shiumai]

Originally Posted by iJeff

There are quite a few blown motors that aren't listed here.

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oh, most definitely. i'm just saying that it's sometimes hard to get accurate statistics or the big picture from forum polls. i wouldn't use this particular poll to estimate the chances of my motor blowing should i get boosted, but more for information on what the problem areas might be and what to look out for.

[iJeff]

Originally Posted by shiumai

oh, most definitely. i'm just saying that it's sometimes hard to get accurate statistics or the big picture from forum polls.

Yep I was in agreement with you.

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[BRZoomTX]

With the high compression, I'd call e85 and an amazing tune requirements for boost if you want reliability. Don't cheap out on the tune and don't push the motor too hard on pump gas. Always get a local dyno tune when possible.

E-tuning, have them triple check data logs before any WOT runs. I've seen a lot of blown motors where they get their first e-tune, flash it, go out immediately beating on the car, then act surprised when it blows up. Never, ever, put 100% trust in to the first tune from an e-tuner regardless of their reputation. Every car is different and the safety from triple checking your tune is worth the time.

Reputable tuning companies such as Delicious offer free reviews with your tune. Use the reviews.

[Astroboy]

Originally Posted by [Ron]

With the high compression, I'd call e85 and an amazing tune requirements for boost if you want reliability. Don't cheap out on the tune and don't push the motor too hard on pump gas. Always get a local dyno tune when possible.

E-tuning, have them triple check data logs before any WOT runs. I've seen a lot of blown motors where they get their first e-tune, flash it, go out immediately beating on the car, then act surprised when it blows up. Never, ever, put 100% trust in to the first tune from an e-tuner regardless of their reputation. Every car is different and the safety from triple checking your tune is worth the time.

Reputable tuning companies such as Delicious offer free reviews with your tune. Use the reviews.

So what if I'm on a conservative tune for 93oct and only pushing 250whp/200lbs, Is that on the safer side or should I switch to e85?

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[nelsmar]

Originally Posted by Astroboy

So what if I'm on a conservative tune for 93oct and only pushing 250whp/200lbs, Is that on the safer side or should I switch to e85?

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Meh unless you are on the track doing hot laps endlessly running on the street with pump gas on a conservative tune is going to be just fine. If the car was tuned to peak power and then a few degree's pulled in the end so that way there is plenty of room for poor quality gas and higher temperature conditions its just fine. E85 has better thermal properties as well as being more stable from the octane rating so you can be more lazy on the timing and not worry when you are being "conservative". Also doing lots of hot sessions ill be better on a race fuel or something with better thermal properties such as E85. If your happy with your power and it is conservative (IAM stays at 0 and knock feedback is minimal after getting the car nice and warm) then you are fine. Pushing more power out of the car with E85 is adding extra stress on the internal components.

When it comes to reliability for long term wear having a clean tune and lower power output is easier on the internals. When it comes to random catastrophic failure having a better quality fuel is a big player. So if you are trying to push the car to 300WHP on 91 octane which is pushing the envelope of the fuel... its pushing you in that catastrophic zone more so than doing a super light tune on E85 for the same horsepower (or pump 100 octane).

I would daily a car on 91 octane @ 250WHP all day every day. I have seen many cars locally run 20k+ miles without any issues at that power level even with iffy tunes showing minor knock feed back.

[BRZoomTX]

Originally Posted by Astroboy

So what if I'm on a conservative tune for 93oct and only pushing 250whp/200lbs, Is that on the safer side or should I switch to e85?

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I'll +1 in the reply above and say you're fine. Anything more than moderate street driving at 300whp+, your motor will thank you for running e85.

[nelsmar]

Originally Posted by [Ron]

I'll +1 in the reply above and say you're fine. Anything more than moderate street driving at 300whp+, your motor will thank you for running e85.

I try to tell people this all the time... But people get tunnel vision from what they read on the internet because people are pushing the absolute max and posting dynos. *sigh*.