Setting Turbo Boost with boost foolers

[ChrisCNC]

If I had more time, I'd like to make some mods but right now I'm buried (with CNC work). I'm planning on going to the local junk-yard and getting an F250 outside door handle so I can get a pattern to make some solid aluminum ones and then have them chromed. Plus like you mentioned, it'd be easy to make a wastegate that runs solely off of drive pressure like the T.M.. Lots of things but gotta keep the customers happy first!

-K

[ChrisCNC]

Cody,

That makes sense, I would assume that trying to nail daily driving with big injectors (and underpowered fuel pressure) would be a headache for you.

That kinda brings up a question for me, for a stock-ish truck (like mine for instance) of all the turbo's you've dealt with, is there a turbo or turbo mod (compressor wheel) that stands out to you as having a well matched boost map? maybe a particular combination of turbos and wastegates?
Or maybe to put it another way, it there a turbo setup on a stockish truck that you enjoy dealing with because its map range "just fits" the needs of the engine? (i.e., you look like a hero! ) If you were going to swap out a turbo, what ones would you be looking at...wastegated or not wastegated? maybe that's an issue for a separate thread...

Didn't you get a project truck a while back? What are your plans with that? I'd like to get a good 7.3 block and build it up over time, but with my tastes ($$$) the first thing I'd want are billet rods and they're EXPENSIVE. I keep wanting to do stuff to my truck but don't want to go much over 400HP simply because of the PM Rod issue. Got a friend here that went about 475 with forged rods and he perforated his block. On the other hand, my brother-in-law is over 500 with his truck (estimate) and he's got PMR. I don't have the cash to gamble like that...

-Kevin

[ChrisCNC]

Ever deal with these guys? pretty good sounding MAP sensor, at least on paper...

5 BAR / 75PSIa MAP Stainless Sensor Kit (30-2130-75) [30-2130-75] - $163.35 : Muscle Motors - AEM Power Distributor!, Got Muscle?

[907DAVE]

Cody, can you verify that the Low Boost Fuel map acts as a limiter and not as a delay?

I have not been very successful when trying to control fueling with this map.

[cleatus12r]

I wrote up a HUGE story on that yesterday evening, Dave, but when I hit "post quick reply" a database error showed up and ruined my night.

I'll retype it at some point today for you.

Have any luck with those normalizers yet?

[907DAVE]

Not yet, been on the road since Friday evening. Plan to hit it hard early
next week.

[cleatus12r]

Originally Posted by 907DAVE

Cody, can you verify that the Low Boost Fuel map acts as a limiter and not as a delay?

I have not been very successful when trying to control fueling with this map.

I'll get some datalogs when I go to town today. I decided that typing something out and hoping that it makes sense would be inferior to actually SHOWING what's going on there.

[907DAVE]

Originally Posted by cleatus12r

I'll get some datalogs when I go to town today. I decided that typing something out and hoping that it makes sense would be inferior to actually SHOWING what's going on there.

Any luck with this?

[ChrisCNC]

Got the boost fooler installed, the Overboost Annihilator is preset to 22-23 psi.

What are your reasons, Cody, for saying these are a good idea? I would think at the very least, it is protecting the MAP sensor from pressures greater than for which it was designed.

I was surprised at how small the sensor is, for curiosity sake, I'd be interested to know if this is a MEMs sensor, can't find any information about it one way or the other. Doesn't matter I guess.

Does anyone know about the difference between the MAP PID on the Gryphon versus the Turbo Boost PID? Are both of these coming from the MAP sensor? If so, then is one value inferred from the other?

[cleatus12r]

I never said they were a good idea. They are a fix (work well for it, too) for overboost codes and defueling. That's it. People have been sending 40+ PSI of boost to the MAP sensors for years without problems.

If you think about the terminology.....
MAP Manifold ABSOLUTE Pressure will be way different than Turbo Boost GAUGE pressure......by about 14.5 PSI (or whatever the barometric correction is).