TRD Intake ! CAI ?!

[Yobiwan]

Originally Posted by husker741

Ok so I don't feel like reading through all this. But I have a TRD drop in and Perrin inlet hose, with full exhaust. Will this really do anything better for me with a tune than my current intake setup? I know untuned, a drop in is pretty much the same gains. But for tune, I'm not sure. Any help is appreciated.

these are my result of comparison test between Perrin inblet hose + KN filter ( first one )
vs Stock intake + KN filter (last one)

I did several times. and results were repeatable.

more turbulence with perrin inlet than stock intake!
so WOT AFR was much more stable with stock intake

after test, I remove perrin inlet and go back to stock intake .

[husker741]

Originally Posted by Yobiwan

these are my result of comparison test between Perrin inblet hose + KN filter ( first one )
vs Stock intake + KN filter (last one)

I did several times. and results were repeatable.

more turbulence with perrin inlet than stock intake!
so WOT AFR was much more stable with stock intake

after test, I remove perrin inlet and go back to stock intake .

Thanks but that really didn't answer my question.

[vtmike]

Originally Posted by husker741

Thanks but that really didn't answer my question.

I'll have something close to what you're asking for. Having a dyno done on March 8th with the trd intake and Nameless header back exhaust. I have a previous dyno with the exhaust and perrin intake tube & drop in to compare. All will be on stock tune.

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[Thorpedo]

Here is my post much earlier in the thread.

Originally Posted by Thorpedo

So I finally got the FR-S on the Dyno.

This was my procedure.

-Unhook neg terminal
-Wait 5 minutes or so
-Hook neg cable back up, run car for 5-10 minutes.
-Do 3 dyno runs.

-Unhook neg terminal
-Install TRD intake
-Hook neg cable back up, run for 5-10 minutes
-Do 3 more runs

This way I believe to be the best, as it makes it so I am comparing apples to apples. My car has around 3500km on it, and it has the TRD exhaust as well.

First 3 runs are as follows:
1. 162.9hp - 133.52tq
2. 166.05hp - 136.51tq
3. 167.95hp - 136.73tq

After the TRD intake was installed (within an hour, so similar temp etc)
1. 174.39hp - 143.59tq
2. 175.6hp - 144.2tq
3. 170.02hp - 141.16tq - Something was up on this last run as I felt the car shift a bit on the dyno. I was satisfied with the figures so we just took it off.

Shitty pic of the graph, but as you can (kind of) see, it was a pretty even increase throughout the rev range with a decent peak at 4500.

(Will be posting pic, vid of gauges shortly)


The Red box is around the runs done with the TRD intake.


I see he his banned, but in closing I'd like to send out a big GFY to FR-S Matt!

[RacerX]

If I'm reading that^^ correctly it looks like the TRD intake offers pretty good torque gains at low end engine speeds. Considering I want to keep my warranty intact and prefer low end power to high end, I think the TRD is going my my list. Some CAI Systems (Perrin) only provide gains at +4krpm and actually reduce low end torque. I could care less about 2whp at 6k. Drivability in stop and go traffic seems like a much more practical performance improvement. It's somewhat surprising to me that everyone only seems to care about peak tq and hp.

Who has the best price on the TRD intake? Would the car benefit or require a tune with this intake?

[vtmike]

Originally Posted by RacerX

If I'm reading that^^ correctly it looks like the TRD intake offers pretty good torque gains at low end engine speeds. Considering I want to keep my warranty intact and prefer low end power to high end, I think the TRD is going my my list. Some CAI Systems (Perrin) only provide gains at +4krpm and actually reduce low end torque. I could care less about 2whp at 6k. Drivability in stop and go traffic seems like a much more practical performance improvement. It's somewhat surprising to me that everyone only seems to care about peak tq and hp.

Who has the best price on the TRD intake? Would the car benefit or require a tune with this intake?

No tune necessary. It's a bit pricey but I like mine. I think there are some dealers who sell them on eBay that have the best pricing.

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[rxpx2012]

Who has the best price on the TRD intake? Would the car benefit or require a tune with this intake?[/QUOTE]

On Ebay you can find it for $365 shipped. I don't have a tune but after it was installed I did notice a difference.

[RacerX]

Thanks! Yeah I'm seeing one for $350 shipped. Not bad.

What rpm range do you notice the biggest difference? I'll be installing my Perrin catback today. Hopefully I'll notice a change in performance; ideally on the low end.

I had my BRZ serviced yesterday at my local Subaru dealer. I was talking to the service manager about what would void the warranty. He said that intakes can be iffy but since TRD is toyota it shouldn't be a problem. Then we were talking about the Crawford performance 450hp BRZ. Crawford had it in for some kind of ECU flash or something like that. He got to drive it briefly and said the thing was damn near undrivable at low city speeds. I thought that was interesting.

[vtmike]

Had the dyno today. Picked up 5 peak whp, with good gains low, and moderate gains in mid range. This is being compared to a previous dyno with Perrin inlet tube and drop in k&n. I'll post up the dyno later today.

Peak HP 176 compared to 171. No gain in peak torque.
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[vtmike]

To give a little context. I removed the main resonator attached to the air box on the initial dyno that seemed to have an effect on the a/f ratio. Other 86's were run with that first dyno and a car on e85 tune with nameless exhaust (same as my set up) hit 180whp, and another with fa20club el header plus intake and tune hit 180whp. My car has nameless downpipe w/ high flow cat, and Axel back on both runs. What differs is Perrin inlet hose and drop in filter on one and TRD intake on the other.

The outlier is an auto FRS with only nameless axleback and drop in hit 167 whp. Search Richmond dyno day results for other dynos.

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[FrsDuke]

I'm baffled.

[subiestyle]

I already have the sound tube removed.

Does this TRD intake sound different, or are most of you just noticing the sound tube delete?

[vtmike]

Originally Posted by subiestyle

I already have the sound tube removed.

Does this TRD intake sound different, or are most of you just noticing the sound tube delete?

Not much sound difference, does make power pretty much everywhere in the power band unlike most intakes.

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[SciOnDrifTtSlIdeR]

The only thing i dont like about the TRD intake is its bland looks amd the price