Third Party Testing: Crawford Billet Power Blocks (BPB / Manifold Spacers)

[was385]

Impressive guys! If only these things were STX-legal...

[JDogg]

Originally Posted by Propaganda

I took it off and measured from the highest point... I still had about 30mm of clearance

What kind of STB are you trying to run?


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[mid_life_crisis]

Originally Posted by wparsons

^^ IMO, the only reason most FI kits ditch the factory airbox is because it's in the way and doesn't work with the plumbing they need to run.

The Innovate kit runs the stock airbox without issue at all.

As FI systems go, the Innovate kit also doesn't make a whole lot of power. It's a nice bump over stock, but based on power alone, it is at the bottom of the FI list. Has anybody swapped in a less restrictive intake and tuned for it to see if anything could be gained? Probably not, seeing as the supplied tune is CARB legal, but it would be interesting to know, wouldn't it?

[Crawford Performance]

Originally Posted by mid_life_crisis

Probably not as helpful on an FI setup as NA as the dynamics of air being forced into an engine are different than when being drawn into an engine. I'm not an expert so don't ask me to elaborate: this is just what I remember from physics class and reading about motors.



Aftermarket intakes might be useful in the area where these blocks shine. Testing seems to be indicating that the factory intake becomes a limiting factor at high rpms. Even if the intake you select does not cheat the MAF sensor, if you have made mods that are moving more air at high rpms, a less restrictive intake should allow those mods to move even more air.
FI systems do away with the factory intake for two reasons;
1) It's big and in the way.
2) It's at its limit and FI needs access to a lot of air.
It's a decent system, but it was designed for an engine that was set up a certain way. It looks to be just enough to handle the factory engine. Once you start making other changes, you need to look at changing the intake too.
At least that's what I get from all the reading I've done.
Just changing the intake all by itself won't accomplish much, but changing it as a supporting mod for other mods makes sense.

The problem with the stock intake on a FI motor is the fact that you can run out of MAF sensor resolution. The larger diameter intake tube gives us back the necessary resolution so we can tune for the increased air flow associated with the massive power increase.

[mid_life_crisis]

Originally Posted by Crawford Performance

The problem with the stock intake on a FI motor is the fact that you can run out of MAF sensor resolution. The larger diameter intake tube gives us back the necessary resolution so we can tune for the increased air flow associated with the massive power increase.

Ah, I forgot that part. Thank you, I added it to my previous post.

[Propaganda]

Originally Posted by JDogg

What kind of STB are you trying to run?


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I have the ft-86 speedfactory tri-bar

[Crawford Performance]

Originally Posted by was385

Impressive guys! If only these things were STX-legal...

They are if you paint them black :P

[OrbitalEllipses]

FYI, I did say if these made power as claimed I'd ask for a ban.

@Hachiroku, 30 day temp-ban pls.

[kodyo]

Originally Posted by OrbitalEllipses

FYI, I did say if these made power as claimed I'd ask for a ban.

@Hachiroku, 30 day temp-ban pls.

NO, PERMABAN!

You must pay for your crimes!

[was385]

Originally Posted by Crawford Performance

They are if you paint them black :P

and just throw on a sticker that says "This part is definitely stock. Seriously, just don't ask questions."

[OrbitalEllipses]

Originally Posted by Crawford Performance

They are if no one checks under your hood:P

FTFY.

[Crawford Performance]

Originally Posted by OrbitalEllipses

FYI, I did say if these made power as claimed I'd ask for a ban.

@Hachiroku, 30 day temp-ban pls.

I don't blame you for questioning the validity of these parts, the gains surprised us as well. That said, in your shoes I would have been just a skeptical!

[xxscaxx]

Any chance you guys could make a one off spacer that is a lot smaller? I wanted to do spacers for my innovate supercharger but have minimal clearance. Just figured i'd ask. @Crawford Performance

[86-tundra]

Originally Posted by mid_life_crisis

As FI systems go, the Innovate kit also doesn't make a whole lot of power. It's a nice bump over stock, but based on power alone, it is at the bottom of the FI list. Has anybody swapped in a less restrictive intake and tuned for it to see if anything could be gained? Probably not, seeing as the supplied tune is CARB legal, but it would be interesting to know, wouldn't it?

what? you can make a good amount of power with innovate, justn ot with base/carb tune