Crawford ecoblocks

[Crawford Performance]

The gains on a stock STI are better than expected

[Apoc]

Who would have thought this would be so amazing. I look forward to actual evidence.

[jaorocks1]

Bump for any more info on this?

[BlueDubbinTDI]

Bump again for more info

[sengytpg]

I had one on my 2017 brz and yes it does give a slight more power and torque....but like someone had mentioned the ecu will try to learn around this. You only feel the power difference when hitting the gas but once you let go of the throttle the ecu retards an jerks the car a little as if it's trying to simultaneously correct the amount of afr.

[Sportsguy83]

Originally Posted by Fast_Freddy

Wow! No CEL, a guy feels a difference on his butt dino and claims + 0.2 mpg? Where can I buy one of these!

I believe this might be the perfect compliment to my Vortec Tornado and Miracle Magnets!

LOL I can't believe I missed this thread back when it was created. Fast Freddy summed it up nicely above....

This validates all I've learned about Crawford and the 86 platform over the course of five years.

[FRS Justin]

Delicious Tuning did a write up on the Crawford Power blocks the results were surprising to say the least. Might want to read it. It's buried in this forum somewhere,

[FRS Justin]

Originally Posted by LANEY487

no its correct, i had put a spacer on my tundra's MAF sensor and it sent the ecu a code and CEL. so i dont think thats far fetched. Crawford knows more about FA20 engines than any other performance oriented company out there, so I would take their word for it, they never steered anyone wrong before.

Update I am on week 2 with the crawford eco block, still feel some power gain in the mid range, MPG is not seeing much yet, i am averaging about .2mpg above normal currently, but we'll see when I fuel up next tank.

Not sure I agree with this

[Sportsguy83]

Originally Posted by FRS Justin

Delicious Tuning did a write up on the Crawford Power blocks the results were surprising to say the least. Might want to read it. It's buried in this forum somewhere,

This is even worse than the power blocks, this is a MAF tricking device.

Originally Posted by FRS Justin

Not sure I agree with this

It's a ridiculous statement for sure.

[DigitalVeil92]

Resurrecting this thread - everything about this product makes me cringe, but I still kinda want it. It seems pretty clear that this thing DOES make some kinda difference, at least in the short term. But what I’m most concerned about is the ECU “learning around it”. What’s the verdict on that? Does the ECU just adjust to it and negate any improvements after a little bit of time? Or do the results stay consistent?

[conehead]

Originally Posted by DigitalVeil92

Resurrecting this thread - everything about this product makes me cringe, but I still kinda want it. It seems pretty clear that this thing DOES make some kinda difference, at least in the short term. But what I’m most concerned about is the ECU “learning around it”. What’s the verdict on that? Does the ECU just adjust to it and negate any improvements after a little bit of time? Or do the results stay consistent?

Its all snake oil. Just ask yourself why Subaru, with all of its R&D expertise, did not design the car this way. Do you think they would sacrifice any tiny amount of performance or fuel economy be leaving out a little plastic donut?
Its really too bad that this site even allows Crawford to post here, they are just helping to reel in suckers.

[why?]

Originally Posted by conehead

Its all snake oil. Just ask yourself why Subaru, with all of its R&D expertise, did not design the car this way. Do you think they would sacrifice any tiny amount of performance or fuel economy be leaving out a little plastic donut?
Its really too bad that this site even allows Crawford to post here, they are just helping to reel in suckers.

This is one of the dumbest arguments I ever see on the internet. Subaru and any manufacturer has 1001 different targets they absolutely must hit in order to even legally sell a car. Your argument sounds a hell of a lot dumber if you apply it to an Edelbrock supercharger kit, doesn't it?

You are literally saying no tuning company anywhere can ever do anything so why do they try?

If what you are saying is true no one would be able to buy an OFT or an ECUTek and create a better tune of the car stock, yet tuners do that every day very easily.

[conehead]

Originally Posted by why?

This is one of the dumbest arguments I ever see on the internet. Subaru and any manufacturer has 1001 different targets they absolutely must hit in order to even legally sell a car. Your argument sounds a hell of a lot dumber if you apply it to an Edelbrock supercharger kit, doesn't it?

You are literally saying no tuning company anywhere can ever do anything so why do they try?

If what you are saying is true no one would be able to buy an OFT or an ECUTek and create a better tune of the car stock, yet tuners do that every day very easily.

Whats dumb is your comparison. A supercharger is an actual tech with real trade-offs, not a magic panacea powered by bullshit. I understand if you have bought one of these things and are feeling duped, but defending your mistake will only cause others to do the same. Crawford's own explanation for why this works is total nonsense.

[steve99]

Craford ecublock is basicly a spacer on the maf sensor.


What is does is move the position of the maf sensor so the sensor derects slightly less air flow.


What this will do is alter the ecu load calculation downwards


Lets assume 10% and im just plucking that figure out of the air.


So all the ecu calculations will be skewed for timing and fueling and even valve timing.


In closed loop ie cruise and light throttle the ecu will learn arround any fueling offset. You will just end up will different fuel trims .



But the ignition timing will end up being slighly higher in most cases as the ecu load calc will be shifted down 10% and that usually means more timing say 2 or 3 degrees.


It will also skew the valve timing this may be good or bad.


In open loop as the detected mass air flow is less and the load calculation lower will generally result in a leaner afr being targeted and less fuel injected ie its going to run leaner by say 10 %
In open loop which is full throttle or hard acceleration..


It will aslo run more ignition advance due the skewed load calculation.


On the stock tune if you have good fuel it possible this contraption will make some power as stock tunes in general run pretty rich for safety and cat converter temp control.


The srock tune on these cars is pretty agressive timing wise so its possible the leaning and additional timing will just result in knock and the ecu retarding timing to save motor.


These adjustments are very crude and not something i would do to my car. But in theory on stock tune with very good fuel it could work.


On a tuned car its likely to cause lots of problems