RecKleSs

I have the Blitz SBC i-D boost controller and was wondering how do you make the proper adjustments for boost. My engine popped a few years ago, because of improper adjustments were made on the Blitz SBC i-d. I don't want to blow another engine and would like to know your settings for boost.

Any help would be apprectiated

cewrx7r1

iTrader: (2)

I have the Blitz DSBC which isn't that far different. The manual isn't that good, but I found a web site with better instructions which I printed. But that was over three years ago.

Gain affects how fast boost rises.
Ratio set the boost you want.

First go set your boost override. I want to run 15PSI max, my boost override is set at 15.5psi with -5 ratio. this helps to prevent over boosting. I have tested it and it works.

Mine has 4 boost settings. Set up each by the same method as:
Set gain low to start off with to prevent spiking.
Set the ratio at a low value. Make boost runs and adjust ratio higher until desired boost is achieved. Now make more runs increasing gain until just below spiking or boost starting to go above what it was.

I do not use scramble mode which is an adjusted short term boost increase override.

vosko

iTrader: (4)

it works a little different............never use manual mode!! always use auto set the gain to 50 and set the boost to what you want eg 15 17 psi whatever. on my old FD i had to go on the highway and let it learn the boost curve, by doing a bunch of pulls once it figured out it was great!!! would only spike a max of .1 psi!

patriick

iTrader: (3)

What turbo were you running with those settings, a single or seq twins?

I'm running stock seq twins and have my SBCiD set to manual mode. Works flawlessly. I get large boost spikes during the seq transition if set to auto.

Trexthe3rd

That's is not exactly correct. If you have stock twins (internal wastegate) you can use either auto or manual mode. Provided the following 2 things are done:
1-The wastegate type must be set to internal on the SBC-id.
2-A manual pre-spool control must be installed to setup the proper transition in sequential mode.

For a single turbo with external wastegate application, the controller MUST run in the manual mode. Again the correct wastegate type must be selected.
Manual mode is NOT recommended for stock sequential turbos.

For the original question, since this is posted in the singles section, I would assume you have a single setup. From what I have state above, set you boost mode to manual and wategate type to external. Star with a boost setting of 20 and a gain of 40, this is a safe starting point (assuming you have your fuel map setup correctly) make a run and see what your boost is at 20, make smal changes until you get to the desired boost level. You can set 4 different boost levels on the SBC-id, set each to your desire. Now you can tune your gain (boost response).
On my car a boost setting of 40 gives me 15psi and I use a gain of 60. This will differ from car to car depending on the turbo setup.