No good thread for TRD CAI performance results yet and this seemed a good place to add my info. Really great install guide!
After reading how
Rocky was dynoed and showed a reasonable improvement I thought I'd give the TRD CAI a try.
I did some obdII with dashcommand runs. 3 runs baseline, 3 runs with TRD CAI. The data was a bit granular, and I ended up averaging the last 660 feet of the 1320 foot runs. The reason for this is there were a few 'off the line' anomalies that messed with the standard deviation. Each run was on the same strip from a stop on a grade (6%). Topped off the gas tank just prior to the start of each session. Each session had very similar ambient conditions (stock: 64F, 32% humid, 30.00 baro | TRD: 70F, 30% humid, 30.00 baro).
Before I go on with results, I'd like to compare the TRD CAI vs. stock systems.
The stock system has a little 'shovel' that protrudes out of the inlet box into the fender well. This 'shovel' is much like a garden hand shovel and faces 'up'. It appears it might try to prevent debris from being sucked up directly, or it could be there to aid in water fording or both. The TRD CAI replaces the 'shovel' with a rubber bell mouth. According the the TRD CAI instructions, the FJ actually has a scoop piece in the fender-well that is removed instead of the 4Runner shovel that is part of the inlet box. That scoop may or may not be significant and could be what TRD measured their HP gains on.
The stock inlet box inlet tube runs a few inches into the box, while the TRD CAI dumps right in at the side wall (no lower tube).
The stock inlet box outlet has a flow straightener at the box outlet just upstream of the MAF. The TRD CAI has no flow straightener and places the MAF further downstream where the inlet tube is tapered down significantly.
The TRD CAI has a neat gimmick with the delta P indicator. 25 in-h2o = replace. That's about 1 psi, so 1 psi / 14.7 psi (std. atmosphere) ~ 7% = time to replace.
TRD parts weight - Stock parts weight = 1 lb lighter with TRD (woot woot).
Results:
Stock average last 660' = 6.360 seconds with a stdev of 0.014
TRD CAI avge last 660' = 6.347 seconds with a stdev of 0.120 (yeah lack of consistency on the runs).
I'm thinking that the stock intake is designed pretty darn well and there might be a slight increase with the TRD CAI. 10 hp peak is pretty negligible when it comes to useable throughout the entire band and what it turns into when it hits the ground on our rigs.
Full Results:
Stock average full 1320' = 18.143 with a stdev of 0.208
TRD CAI avge full 1320' = 17.664 with a stdev of 0.567
Maybe there's something there, maybe there isn't
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2014 T4R TE Nav KDSS Super White
Demello Hybrid Bolt On Sliders | Toyo Open Country AT III LT285/70R17 C |
Ironman 4x4 Foam Cell Pro Stage 2 | Durobumps | Rago Molle Panels | Leather steering wheel cover | RCI Full Skids (Aluminum) |
Drawer less drawer system and sleeping platform. |
TRD CAI | RAV4 Sideview Mirrors: 87961-42D20 & 87931-42D50 | Blackvue DR650S-2CH | Cobra 75 WX ST with 4’ Firestik + Magnet Roof Top Mount | MXT275 Midland GMRS radio | 3M Crystalline: Front CR70, A-B CR50, B-Aft CR40 |
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