They have a 4-wheel dyno there? Very interesting, I've never seen one before.

Man,NA sucks to squeeze horses from and costs too much.

Is there a reason you are after these elusive horses?

Yeah they have a 4 wheel dyno at Mac Autosport in Parker, CO. Pretty popular around here because alot of people drive AWD cars that they like tune and drive in the winter. Mac has the first AWD dyno in CO, or at least that's what they say. I went to HS with the owner's son and their shop is like 5 min from my parents house.

Ron, yeah it doesn't seem like I'm going to get a lot of power here, I estimate 5-10 whp. In the research I've been doing, it seems like the Toyota ECU has its own mind made up about how much air and how much fuel it wants to burn no matter what mods you decide to add. That's why alot of these intake and exhaust mods don't add the power that you would get in, say, a Tahoe or something, its because as we all know, the computer adapts to changes. The plan with the AFC is to trick the computer in to thinking its running rich (by intercepting the O2 signal) so it will either add air, reduce fuel, or both. This way the mix is leaned to 12.5-12.8:1 to get optimum power from the fuel (I'm at 11.9:1 now). Also, another large reason I did this is because when the warranty expires and I have enough money I plan on supercharging to a max of about 5-6 psi. As I'm sure you know, boosted applications require precise air fuel control, and the PSC1-001 has a MAP sensor input to aid in this process.

**UPDATE**
I know I told a few of you that I was going to the dyno today. Well I'm not now because URD didn't get the PSC1-001 to me on time. Maybe if they get the part to me tomorrow (by mail) I can take it in tomorrow afternoon but the shop is booked all day for an SRT-4 dyno day, if I can't get it tomorrow it may be next weekend. However, I PROMISE I will get a pre and post tune dyno and post the results here. Remember that I have added the Volant CAI since the last time I was on the dyno so the pre-tune dyno will also reveal the truth about the intake on the vvt-i V8. Stay Tuned.

So,how many more miles til the fun begins?

Haha, well I'm at about 17k now, and what's the powertrain warranty? 30k? So about another year, year and a half...

:awais:

Powertrain warranty is 5 year 60k miles.

Regular warranty is 3 year 36k miles.

-Eric

Where's the BEEF?

Koz

In a box sitting on my kitchen counter. The part came yesterday and was supposed to show last friday. Now I can't make it to the dyno until sometime next week becasue I'll be busy all weekend. The BEEF will be delivered.

OK latest update...

I went in at 3pm today to get the Split Second PCU installed for AFC and timing tune. I got there at 3pm, but some friend of the owner was there and wanted to do a quick pull, no problem I had the rest of the afternoon and wasn't going anywhere.

The guy pulls in a Hummer H3, I'm like, "Are you F*cking kidding me?", but as it pulls in the garage I hear the unmistakeable whistle coming from under the hood. That's right folks, a blown I-5 H3. The guy who was dynoing it built a FULLY custom S/C kit with air-water intercooler running 8 lbs of boost, eight!!. Stock internals, stock computer (he cracked the code to take out timing and adjust air/fuel numbers).

The funny thing was it only put down 250 AWHP and 220 AWTQ. I put down 212/250 with just exhaust. So with intake and the PCU I'm getting installed I'm estimating somewhere around 230-240 AWHP so I imagine I could still hang (especially since I weigh about 500 lbs less and have better gearing than the H3). But I digress...

I rescheduled for Thursday at 10am, so expect to see dyno numbers early afternoon on thursday. The BEEF is a comin'!!!

Check out the latest pic of the Runner, taken atop Loveland Pass last friday....

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x2 ^^^ exactly. This is what we have been finding when we tune both engines on the corollas. The vvt-i 1zz and the vvti-L in the 2ZZ.

Oh and Please Keep Us Posted! Brian at URD helps the boosted corollas out a lot plus I'm looking for good results before I start tuning the 4Runner.

OK, well finally I got the Split Sec PCU installed and tuned. After spending 2 hours on the dyno tuning here are the results. But first, I promised to release the results of the Volant CAI. This run was done with the stock map running in the PCU before we even started tuning. AFR's were right at 11.8:1, even though the graph I posted below doesn't show it. How about 17 AWHP?? I think that settles that:

Volant CAI Dyno Proven HP:

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All the gains are above 3700 rpms, though, and you actually lost power below 3700, which is where the engine is during a majority of the driving. Not an acceptable trade off to me, but if all you're after is peak numbers then congrats!

OK, now for the results of the Split Sec PSC1-001 performance control module. We threw it on and put it on the dyno and realized anywhere from 5-10 AWHP, with alot of the runs being around 8 AWHP. We tuned from 11.8:1 AFR and leaned up to about 12.9-13:1. At one point we were around 14:1 and the power was down a bit and the torque was up alot, as much as 270 ft-lbs when it was that lean. As far as what I got, I'd say its about 8 AWHP, which is exactly what I expected. The dyno sheet says about 5 AWHP over the intake, but that was after about 10 dyno pulls in a row, it was starting to get pretty hot in there, and the cooling fan was engaged too. So anywhere from 5-8 AWHP.

Comparison - Just exhaust vs. Intake/Exhaust/Tune:

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Here is a shot of the final pull with the final map - 233 AWHP and 271 AWTQ. That translates to about 300 crank HP with a 21% driveline loss. Not bad.

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So to recap the stage one completion:

Magnaflow Catback - $400
Volant CAI - $270 (I think this is what I paid...)
Split Sec PCU - $270 + $225 install & tune

Equals about $1165. And I got 40 crank HP from this, so that equals around $30 per HP, not too bad.

Thanks for following, any questions let me know...