$15K power challenge

[mikelr]

Originally Posted by Boosted2.0

You can also just use a regulat water or mercury manometer to measure the pressure and do the calculations on paper, but this way is MUCH simpler.

Oh and it sure looks it.

[raygr]

Originally Posted by Boosted2.0

Well - as I said bench id finished - We still have to mess with the hoses from the pitots to the FP1 a bit and troubleshoot a leak on the 3" range, but it works and works well!

Here are the final pictures:

Control valves for the pitots and static pickups

It looks like you're getting ready to start making Flubber, professor.

[Boosted2.0]

Originally Posted by mikelr

Oh and it sure looks it.

You still need everything except the computer with a water manometer. The computer also has the benefit of (when outfitted with the right software) automatically logging flow at various depressions so you can build a complete flow graph for before and after a tune.

[kbob]

Thanks for the pictures and the explanations over at newcelica.org.
What is the response time of your system? It looks like you have a huge volume of air to bring up to pressure: most of the armoire, those long pipes in the back, and the bench itself. Maybe 100-150 cubic feet?

Do the pressure and the flow stabilize in seconds? Minutes? Is it stable or does it oscillate?

And where are the pressure sensors? In the big box or under the bench or ...?

[Boosted2.0]

Originally Posted by kbob

Thanks for the pictures and the explanations over at newcelica.org.
What is the response time of your system? It looks like you have a huge volume of air to bring up to pressure: most of the armoire, those long pipes in the back, and the bench itself. Maybe 100-150 cubic feet?

Do the pressure and the flow stabilize in seconds? Minutes? Is it stable or does it oscillate?

And where are the pressure sensors? In the big box or under the bench or ...?

Flow stabilizes very quickly and changes show up inside of a second once the bench is spooled up. The actual air volume in the test fixture and the pipes is all that matters and its not that much. Plus it helps that we have over 1200 CFM worth of motors driving it. If I change the test pressure significantly (say from 10" of vacuum to 35") that can take a good 10-15 seconds to happen, but only because the actuator running the air bleed moves in small steps.

The pressure sensors are in the little rectangular box thats on the wall under the power plug.

The sensors feeds don't really move any air - they are dead headed into the sensors - they just register changes in pressure.

The big motor box is deceiving in that it looks hige but its very segmented inside of there and its all irrelevant to the testing process - those big straight PVC tubes on the back and the test bench itself are where the magic happens - that giant box is literally just a selectable air pump.

[sleepless]

Oh, just post some pics of some of MY parts being worked on already

[Boosted2.0]

Patience grasshopper - first we are going to be playing around with a junk head to see just how much we can get away with.

[Bruce]

Originally Posted by Boosted2.0

Patience grasshopper

Patience - it's been 4 months. I think patience is one of his stronger traits.

[jim-clayton]

Excuse the hijack.

Where's the cnc porting like NASCAR. I thought the porting on a Toyota head has been done a million times.

Someone must have the porting all worked out.

hijack over

[Boosted2.0]

Originally Posted by Bruce

Patience - it's been 4 months. I think patience is one of his stronger traits.

His patience is almost as obvious as the fact that I was borrowing a common phrase from pop culture.

[Boosted2.0]

Originally Posted by jim-clayton

Excuse the hijack.

Where's the cnc porting like NASCAR. I thought the porting on a Toyota head has been done a million times.

Someone must have the porting all worked out.

hijack over

Toyota makes lots of different heads. The only one I am aware of anyone having CNC set up for is the Supra head. It actually takes a LONG time to set up for CNC on a head, and you have to have a proven design before you even start the process. Which is probably why its not available for the 2ZZ as of yet.

On the Toyota side there has been ONE recorded 2ZZ P&P head done by someone that actually owned a flowbench (Joe Alaniz) and they did not report the results. There have been a handful that were done without the use of a flowbench to measure results and none of those have so much as before and after dynos.

[sleepless]

Originally Posted by Boosted2.0

His patience is almost as obvious as the fact that I was borrowing a common phrase from pop culture.

That's how I took it, master

[xtn]

YEAH!

I'd rather have somebody like Boosted, who obviously cares about his work, is willing to go the extra mile to get everything done RIGHT, and who answers concerns in a forthright, detailed, polite, and in laymans terms, than I would somebody who doesn't do all those things.

If I was getting work done on a 1984 Reliant K then I wouldn't care about it. But if I was having my Lotus operated on, I would want the right guy.

xtn

[dustylax]

Originally Posted by Boosted2.0

On the Toyota side there has been ONE recorded 2ZZ P&P head done by someone that actually owned a flowbench (Joe Alaniz) and they did not report the results.

i think i can find a couple that have been done, and hopefully i can get the #'s and details for you.

[kortik]

please

[dustylax]

been workin so no time to get to the machine shop, if i have time i will either call or get down there by the end of the week, getting there in person is probably the only way i'll get them to dig up the info so it could be the end of the week.

i know of someone else who might have some info on this, i'll try and get in touch w/him today.

[Boosted2.0]

Originally Posted by dustylax

been workin so no time to get to the machine shop, if i have time i will either call or get down there by the end of the week, getting there in person is probably the only way i'll get them to dig up the info so it could be the end of the week.

i know of someone else who might have some info on this, i'll try and get in touch w/him today.

Cool. I would very much like to have baseline flow numbers to compare against what our bench comes up with. I have quite a few calibrated orifices I have been using to fine tune teh calibration but its always good to see if someone else's numbers match your own.

I'd also like to see what numbers you have for localized velocity in the ports if you have that data.

[dustylax]

i'll get whatever data i can from either of the guys and let you know.

i havent followed most of this thread, but how much did it cost and time take to build the flow bench...if its got more use in the future, esepcially for money making purposes im sure it was worth it, but if just for a single project or 2 it would have been easier to just use one at a shop no ?

[Boosted2.0]

It cost a lot and has taken a long time. (its been in development since last August in fits and starts) We built this one because I got tired of renting the one I have been using across town and littlerocket has use for one too. That, and designing and executing this project is enjoyable in and of itself. I've learned a ton about flow benches and flow measurement and monitoring. I've known how to use one for quite some time, but now I know how and why they work. Hell, I'm still learning.

And yes, we intend to continue to use it for heads for the 2ZZ and other engines, and I also want to start playing with intake manifold design, and other things.

[GTsRasta]

All hail Boosted 2.0!