Stock vs 123 Wheel HP (All-Motor) Dyno Graph

[richardholdener]

Here is a graph of the baseline runs with the stock yaris (the one we are using to design production intake with). The after graph is a result of a few mods including the new long-tube header, Dynatek intake, Xd TB and NST under drive pulleys. It looks like exceeding 120 wheel hp will definitely be possible with bolt on mods assuming they inlcude the long-tube header 9and mid pipe) and new intake manifold. This test was run with a version that is identical to the production piece so these gains will be possible. Possibly more power with light-weight oil, tuning from FIC (needs more ignition timing) and real CAI (we ran the stock filter lid turned upside down)-I forgot my TRD/AEM CAI back in Vegas for this test (in Palmdale). We might be able to get to 130 wheel hp in real street trim! BTW-Check out post on intake update.

[pinoypizzaboy]

where can i get richard holdner built stickers for my car?

[mikenacarato]

whats different about the xd TB than the yaris?

[richardholdener]

The Xd throttle body is larger than the Yaris but it plugs right in and runs perfectrly on the yaris. Just needs a minute or two to idel down the first time you start it-ECU is not use to having such large throttl eopenings at idle but once this self adjustment takes place right after initial start up-it works perfectly and was worth roughly 2 hp at this power level. Intake will come with flange to accept Xd TB and have adapter plate to neck down for yaris TB.

Originally Posted by mikenacarato

whats different about the xd TB than the yaris?

[YarisPR]

Originally Posted by richardholdener

The Xd throttle body is larger than the Yaris but it plugs right in and runs perfectrly on the yaris. Just needs a minute or two to idel down the first time you start it-ECU is not use to having such large throttl eopenings at idle but once this self adjustment takes place right after initial start up-it works perfectly and was worth roughly 2 hp at this power level. Intake will come with flange to accept Xd TB and have adapter plate to neck down for yaris TB.

Any chance u have any pics of the TB installed on the yaris?

[richardholdener]

The Xd TB was installed on the prototype intake-we won't have photos of the new intake until the production piece is ready. Externally, the Xd TB looks the same as the yaris.

Originally Posted by YarisPR

Any chance u have any pics of the TB installed on the yaris?

[mikenacarato]

awesome! your the man richard!

[ChinoCharles]

Richard, how are these N/A geared mods going to work with a forced induction setup? Will they still add power? I understand that they aren't designed for use with a turbocharger, but I am hoping that they will still add to the whole picture and not take away.

[richardholdener]

For a turbo application, the intake and NST pulleys will work well. Can't really do a long-tube header for turbo application-but it would definitely help if it could be fit-anything that helps NA power will help in forced induction. A rotrex blower set up could use all of the listed mods. Blitz blower could use long-tube header and pulleys (all could use a good CAI).

Originally Posted by ChinoCharles

Richard, how are these N/A geared mods going to work with a forced induction setup? Will they still add power? I understand that they aren't designed for use with a turbocharger, but I am hoping that they will still add to the whole picture and not take away.

[pinoypizzaboy]

im a noob but 20+ whp is a big change for the yaris ecu wont this require some management of some sort? this is almost the same gains as the blitz

[richardholdener]

Since this is a mass air management system, it has been very self compensating in terms of air/fuel and timing (we monitored via palm pilot), so no changes to ECU are necessary. Air fuel curve was basically same as stock. We think additional timing may help power since we were only registering a peak of 20-21 degrees (less in the mid range).

Originally Posted by pinoypizzaboy

im a noob but 20+ whp is a big change for the yaris ecu wont this require some management of some sort? this is almost the same gains as the blitz

[4MPG]

Pretty impressive.. dammed near 25 percent increase in power with zero tuning and only boltons.

Is there no way to tune the car other than a complete standalone system? I can defiantly see where your loosing some power to the tune (especially the dips between 4200~ and 5500~).

I have seen (on this forum) where people did piston swaps from other Toyota cars to get a bump in compression, any plans to try this out on your test mule?

[richardholdener]

I am very curious to know how you see where we are losing power due to tuning based on the graph provided. Since there is no evidence of the air/fuel ratio or timing values, how do you know where tuning may improve the power? To answer your question about tuning, we will be employing an FIC on the yaris motor (basically to increase the timing-since air/fuel is near spot on already. No plans on changing compression-the test motor belongs to another forum member and we don't think he will like us tearing his motor apart. BTW-The dips in the curves you are refering to are a function of the resonance waves from the long-tube headers and intake manifold.

Originally Posted by 4MPG

Pretty impressive.. dammed near 25 percent increase in power with zero tuning and only boltons.

Is there no way to tune the car other than a complete standalone system? I can defiantly see where your loosing some power to the tune (especially the dips between 4200~ and 5500~).

I have seen (on this forum) where people did piston swaps from other Toyota cars to get a bump in compression, any plans to try this out on your test mule?

[4MPG]

Originally Posted by richardholdener

I am very curious to know how you see where we are losing power due to tuning based on the graph provided. Since there is no evidence of the air/fuel ratio or timing values, how do you know where tuning may improve the power? To answer your question about tuning, we will be employing an FIC on the yaris motor (basically to increase the timing-since air/fuel is near spot on already. No plans on changing compression-the test motor belongs to another forum member and we don't think he will like us tearing his motor apart. BTW-The dips in the curves you are refering to are a function of the resonance waves from the long-tube headers and intake manifold.

Your seeing these kinds of dips etc due to the headers? The dyno sheets of the before/after of the headers really show some spots (4-5200) where it looked like a tuning issue, as it was present but not as exaggerated on the stock dyno, which I figured was a tuning issue. Its probably alot less important than it looks... on this scale every small change looks like a monster.

[jkuchta]

So tell me about this long tube header. When will it be available, and will it mount to the stock midpipe?






EDIT: I just saw the other thread!

[eTiMaGo]

niiiiiiice, now that is a meaty increase across the range

[Dylan Yap]

do you have a AF chart too? dynojet can print AF too

[CASTREX]

Hey, for anyone wondering how the Yaris long tube header looks....

Here you go! Richard just sent me the picture...