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  1. #1
    Sr. Mechanic raisor87's Avatar
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    Default tb spacer review

    I know most people don't believe in TB spacers unless you have forced induction or juice, but I was given a trans dapt swirl spacer for free. It took about 25 minutes to install and was about as easy as it gets. Right off as I started my truck I noticed the idle was slightly smoother, I also thoroughly cleaned the throttle body its self so this probably contributed. Throttle response was mildly improved as was acceleration, not really that noticeable in the seat of the pants but 0 to 40 mph did improve by a tenth of a second. If I would have paid $90 or better for a jet or other name brand spacer I would be likely to slam it but for free its alright. Plus I do have other projects in mind for later that this will lend some airflow and power to. MPG report will come in the following week. Currently 12mpg city 16-19mpg highway depending on how heavy my foot is that day

  2. #2
    Sr. Mechanic raisor87's Avatar
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    Default

    Highway MPG improved by about 2 at 65 to 70 MPH no changes in driving style
    City MPG decreased by around 3 to 4 MPG not happy about this

    Currently 19MPG highway 10MPG city and I have a tri fold bed cover which helps slightly on the highway.
    1998 GMC Sierra SLE- Bone stock engine, 4'' in dash dvd 2 10" subs 800watt amp.

    1999 Buick Park avesdf

    1971 Buick Electra 225 built 455 and turbo 400

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