The MAF sensor pipe and associated ECU tune offered by Frankenstein Motorworks is one of the best things you can do to make your 2GR swap run as it should. As explained in my blog post on the subject it keeps fuel trims nearly perfect and makes a few extra HP as well. However, in order to use it on your swapped 2GR an elbow with a connection for the PCV system is required, and a bracket to support the intake is strongly recommended.
This custom silicone elbow provides both the port for the PCV and also a port for the OEM resonator from the Sienna (pn: 17893-0P090). The resonator significantly improves the quality of the data provided by the MAF sensor, allowing the ECU to make better load calculations resulting in more consistent air fuel ratios and generally making the engine run just a little bit better. The resonator can be purchased brand new from Toyota for about $25. If you do not intend to use the resonator you will need to supply your own plug for the resonator port.
This kit includes a simple bracket to support the intake as shown below (compatible with the E153 transmission, may work with others), plus the necessary clamps and hardware.
Intake elbow for the soon to be available 3.5" MAF pipe from Frankenstein Motorworks. Available for both the stock 70mm throttle body as well as the 76mm throttle from the 3UR-FE v8. You may pre-order it now, or sign up for a notification when it becomes available.
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Resonator Effects
Commonly assumed to be only for noise suppression, my testing has shown that the Helmholtz resonator often found between the MAF sensor and the throttle body on OEM intakes actually has a significant smoothing effect on the data from the MAF sensor. Since this is one of the primary inputs from which the ECU determines everything else, getting the best possible MAF data is very important. The graph below shows the difference in MAF data from two pulls with the resonator vs two pulls without the resonator.
This in turn allows the ECU to produce a smoother load curve, and in some cases results in a smoother more consistent air fuel ratio. While I have not yet found this to result in more power, it certainly can't hurt to provide the ECU with better data.
Hi I have a question about your intake elbow for the 2grfe with the resonator. I am doing a swap into a mk3 mr2 and wanted to know if anyone has tried this to see if it will fit? I am using the kit from Marc at Frankenstein Motorworks.
I don't know of anyone who has used it in that application, but unless there is very little room around the throttle body entrance and over the transmission, I would think it would fit.
Would this fit in a N/A Lotus Evora?
Should fit the throttle body. It won't work to connect to the stock airbox, but would likely work to connect to an aftermarket intake pipe such as the Frankenstein Motorworks pipe. The bracket may or may not connect to any point on the transmission as it is supposed to on the MR2, I don't know if a similar bolt hole exists on the Evora transmission.