Why I blew up my engine

[huguetpj]

For those of you who remember, I blew my engine early may this year. It took me 5 months to get my car back (don't ask) and just the other day I did some tests to find out what happened. Well I figure it out, and as an FYI to those using the Blitz SBC iD:

Regarding the boost limiter setting the English instructions say something like: - 100 - full boost cut - 0 - no limiter

Or something along those lines. Maybe I just read something wrong, so I set up my boost at 30 (aprox 9 PSI), warning at 10PSI and limiter to 100, thinking that it would go back to stock boost when hitting the limiter.

Well I thought wrong. What the limiter does is replace the channel setting with the limiter setting, so what happen was that I overshoot 9PSI, reached 10PSI and then the limiter took over changing the setting from 30 to 100 (full boost).... the boost spiked to 19PSI and then boom.

The controller graph of the previous setting would look like this:

Setting100 10 PSI -------------------------------------30 9 PSI ----------------------------------30

So it was an unstable controller. Since I now know better I setup the limiter to 10 so the graph would look like this:

Setting10 10 PSI -------------------------------------30 9 PSI ----------------------------------30

Making it a stable controller and the boost just bounces DOWN from the limiter as it should.

Don't know if this info will be of use to anybody, just thought I should share it before somebody reads the instructions wrong as I did.

[bcuz]

haha I started laughing when I realized what went wrong. I see how you read it wrong, it sucks that because of unclear instructions blew your motor.

oh well, **** happens...