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

[fredfromnh]

That's a whole lot of good work. Imo the.spacers are telling us the intake ports may be on the large side relative to cam profile. Anything that improves cylinder filling that much at lower rpms is taking advantage of a port, cam, timing compromise imo.

[TwinturboCamry]

Originally Posted by Turdinator

What is with this forum and people asking for cheap knock offs? It's like you want Tony from FA20club back.

I prefer the word alternatives. Thia is a very simple part, not a turbo kit. Would you buy a trd sound changer tube for 100?

[OICU812]

Very nice appreciate your time. These blocks, a good header and tune could equate 35-40 whp gains solid. That is a pretty impressive stroke of goodness really.

[86-tundra]

this may be incredibly off topic, by why do some dynos such as this one read so low (130whp) while others read real high (180whp)? Nelsmar is right in saying we should be looking at percentages, but what is right here? does the car have 140whp or 180whp? Why would we believe one or the other? why isn't this a standard calculation?

anyways.. looks great. thanks neslmar. where is jamesm when you need him for supportive context

[AznKirby]

Nice review. I'm glad you didn't take their word for it, and tested it for yourself!

[phastafrican]

Great work! Picking up a set as I was already on the fence.

[Freshfrs86]

Really great info thanks!

[captain_jack]

Well lets be honest here, the numbers regardless if they seem low are this. The baseline dyno shows a number that it started with and then shows what it ended up with. Regardless what those numbers are they are hard data and the gains are either there or arent.dynojet dyno's tend to read higher the a mustang or a maha dyno. My car on a mustang dyno makes roughly 255-260, put it on a dynojet and it will read 280-290. Maha dyno is known to read low so he is right in saying look at the percentages.

sent from your mom

[makinen]

Originally Posted by StormTrooper

@nelsmar I'd quote the issues I'm having reading your post but I'm on my phone and don't want to quote all of it or mess around.

Where is the 116 and 119whp coming from if stock is 130whp?

Some of your numbers don't make sense.

Not at all as I think.

Look carefully at "@ 7300-7400RPM".

Originally Posted by nelsmar

Lets look at the results @ 7300-7400RPM:
BPB w/o tune: ~116WHP
Stock: ~119WHP
Tuned: ~143WHP
Tuned with BPB: 140WHP

[StormTrooper]

Ahhh reading comprehension is hard lol.....

Thanks for the info.

[nelsmar]

Originally Posted by Luis_GT

Awesome job @nelsmar

Theres a small typo though

Thick Solid: Tuned with BPB
Thin Solid: Tuned with BPB
Small Dashed: Tuned w/o BPB
Large Dashes: Untuned w/o BPB

Thin line should say Untuned

Thanks for the heads up! That could have been confusing. Lol

Originally Posted by captain_jack

So why not use them on a fi car?

sent from your mom

FI air flow is different as you have a positive pressure differential vs the engine pulling. It'd also just a lot of work to get solid data when you have sketching such as a turbo that has so many variables. If I was supercharged still I would give it a whirl to see what it was like.

Originally Posted by Captain Insano

Thanks for testing. Which headers for that next round of testing?

The car I was testing on us picking up a JDL UEL this week.

Originally Posted by StormTrooper

@nelsmar I'd quote the issues I'm having reading your post but I'm on my phone and don't want to quote all of it or mess around.

Where is the 116 and 119whp coming from if stock is 130whp?

Some of your numbers don't make sense.

Someone else answered you but just to clarify 130 was the "peak hp" of the baseline. I was showing examples of gains at a specific rpm as the peak number shows little. Especially when you consider both the tuned with and without the spacers made nearly the same peak whp but the dyno with the Crawford spacers has more torque and more usable power.

Originally Posted by trevorovert

this may be incredibly off topic, by why do some dynos such as this one read so low (130whp) while others read real high (180whp)? Nelsmar is right in saying we should be looking at percentages, but what is right here? does the car have 140whp or 180whp? Why would we believe one or the other? why isn't this a standard calculation?

anyways.. looks great. thanks neslmar. where is jamesm when you need him for supportive context

I have a link I will try to post in the morning explaining dynos. This is why baselines and average baseline numbers are very important. This is why there has been friction with me and many vendors in the past when asking for detailed dyno info because peak numbers without an appropriate baseline is hard to gather solid info from. A fee vendors have made as much effort as me to show baselines and it is quite appreciated by those of us that are comfortable with them.

But as for which is right... The maha is extremely accurate and does a wind down to get a crank power reading but regardless that is still only so accurate. Simple answer is none are right. Look at the gains not the actual number tins worthless.

[cruizin01]

Nice work. Little less gain than I expected on a tuned car. But as you said, great on a stock car.

In for header results to see if anything changes substantially.

Sent from my Galaxy Nexus using Tapatalk

[wparsons]

Great review, and we've gotta talk about how you're getting so much power up top on an otherwise stock car!

[Wonderbar]

Holy hell, you beat me to it. Great results and especially impressive 16% with tuning. I won't waste the effort and time doing a bolt ons with tune. I'll go straight into installing it with my vortech. Stay tuned.