tooter's manifold adventure...

[tooter]

The tooter results came in at +1 -1
And I think this was the latest list of guesses:

malibu +4 -6
Tooter +2 -3
Mazilla +1,000
Garm -5 -5
Anomaly +1 -3
Ljming -3 +3
BEEF +3 -2
Goldeenoh +5 -3
Goliath 0 0
tk-421 +4 -3
Yoda +4 +3
Jason -12 -18
packet +5 +3
Maitre +2 +4
Jeff -3HP -10TQ
Bluevitz-RS +4hp +6Tq
Scubaru Steve 0hp +10Tq
Flipper_1938 +6hp +4 ft lbs
Viperoni +2 -5
enviri +3hp 0tq
xnamerxx -10hp -10tq
CTScott -2hp +4tq
eTiMaGo 0 0
Billiam

+ 1,000,000


Looks like 4 people were a total of 2 digits off:

Anomaly
Goliath
enviri
eTiMaGo

Maybe we need to do a run off dyno.

[Blown_xa]

Great read. I applaud the effort put into the manifold and testing it. I wouldn't be dissapointed at all, Ive seen reputable companies produce manifolds which proved power loss much greater. You have the right design aspects in your manifold design for the goals you had in mind. If I were to guess, a header will compliment that manifold simply because the volumetric efficiency of the intake has increased so much. You may not have a gain now because your setup is ''lopsided'', hiding the potential of the manifold.

As far as dyno conditions, that sheet clearly states the numbers are SAE corrected... which means temperatures and barametric pressure is accounted for. ( you can dyno on a 30 degree day, and on a 90 degree day, the numbers should theoretically be the same if SAE corrected).

VVT I on our cars learn, and change according to driving habit. I put my car on our dyno once with no changes, It made 28ft. lbs more torque, 6 less hp.........no changes. So I would deem your results inconclusive until you switch the manifold right on the dyno.

[eTiMaGo]

well, it's a somewhat underwhelming result for the amount of work that went into it, but on the bright side, you haven't really lost power... and like others have said, it may well have major advantages once boost comes into play... So what are you waiting for, tooter? grab that turbo kit! :D

[tooter]

Originally Posted by Blown_xa

Great read. I applaud the effort put into the manifold and testing it. I wouldn't be dissapointed at all, Ive seen reputable companies produce manifolds which proved power loss much greater.

Thanks, man...
Considering that this was the very first attempt of a total amateur, the results weren't all that bad. I'm going to see if I can do better now.

You have the right design aspects in your manifold design for the goals you had in mind. If I were to guess, a header will compliment that manifold simply because the volumetric efficiency of the intake has increased so much. You may not have a gain now because your setup is ''lopsided'', hiding the potential of the manifold.

There's already a header. This is what's on the engine when it ran today:

BLOX velocity stack air filter
Weapon R short ram intake
Weapon R 4-2-1 header
Micro Image center exit axle back exhaust
tooter manifold

As far as dyno conditions, that sheet clearly states the numbers are SAE corrected... which means temperatures and barametric pressure is accounted for. ( you can dyno on a 30 degree day, and on a 90 degree day, the numbers should theoretically be the same if SAE corrected).

Yes, the baseline was done at 80 degrees, and the second set of runs was at 88 degrees.

VVT I on our cars learn, and change according to driving habit. I put my car on our dyno once with no changes, It made 28ft. lbs more torque, 6 less hp.........no changes. So I would deem your results inconclusive until you switch the manifold right on the dyno.

You know, maybe when I disconnected the ECU to relearn with the new manifold I didn't do enough flat out driving for it to learn the whole curve. I only floored it a couple of times on the freeway and thought it would be enough.

[tooter]

Originally Posted by eTiMaGo

well, it's a somewhat underwhelming result for the amount of work that went into it,

I didn't really do all that much work, because it's actually a pretty simple straightforward process to visualize a concept and make it a reality. The total elapsed time from getting the first manifold to running a complete operating prototype on my engine only took 2 months.

but on the bright side, you haven't really lost power... and like others have said, it may well have major advantages once boost comes into play... So what are you waiting for, tooter? grab that turbo kit! :D

That's true. The difference in power is to small to actually feel. You could only quantify it by going flat out on a timed drag strip.

I'm going to stay on the normally aspirated path. Even though the dyno runs reveal the manifold's shortcomings at full throttle, in normal partial throttle low rpm everyday driving conditions it works really good.

[thebarber]

Disappointing numbers...but at least you tried. For that, I applaud you.

[anomoly40]

Originally Posted by tooter

Looks like 4 people were a total of 2 digits off:

Anomaly
Goliath
enviri
eTiMaGo

Maybe we need to do a run off dyno.

But I got one right...

[cali yaris]

I didn't do enough flat out driving for it to learn the whole curve. I only floored it a couple of times on the freeway and thought it would be enough.

You drove it the way you drive the car, which was a more exact "before and after".

I don't think 'driving style' can change the maximum power output on the dyno anyway, but it might change the curve some.

[tooter]

Originally Posted by thebarber

Disappointing numbers...but at least you tried. For that, I applaud you.

The whole process has been a lot of fun, and I'm not quite done playing around with it yet.

[4/20 NEVER FORGET]

Time to have the shop make you a adapter for a corolla TB :)

I got my corolla TB yesterday. I'm going to buy an xB weapon R intake manifold and have the TB flange modified to fit it.

[Jeff@MicroImage]

Originally Posted by 4/20 NEVER FORGET

Time to have the shop make you a adapter for a corolla TB :)

I got my corolla TB yesterday. I'm going to buy an xB weapon R intake manifold and have the TB flange modified to fit it.

Why not purchase the Micro Image manifold with the 1ZZ TB flange already on it?

[4/20 NEVER FORGET]

Originally Posted by Jeff@MicroImage

Why not purchase the Micro Image manifold with the 1ZZ TB flange already on it?

When is it going to be available for purchase? If it was I would have already purchased it

[Jeff@MicroImage]

Originally Posted by 4/20 NEVER FORGET

When is it going to be available for purchase? If it was I would have already purchased it

Very soon, we have a prototype to dyno and if all looks good we'll begin production.

[Golddeenoh]

Originally Posted by Jeff@MicroImage

Very soon, we have a prototype to dyno and if all looks good we'll begin production.

does it come in red?

[thebarber]

tooter, once you get a bigger resonator-to-axleback exhaust piece, youll likely feel better gains all over

[tooter]

Originally Posted by 4/20 NEVER FORGET

Time to have the shop make you a adapter for a corolla TB :)

The CNC guys at Origin Design can make an adaptor for any throttle body. How is the Corolla throttle body configured differently from the Yaris one?

[cali yaris]

It bolts right on, it has a little larger throat.

[Bluevitz-rs]

It has a bigger opening, nothing more. same bolt pattern, it's a direct bolt on. You'd just need a bigger opening on the adapter