Bofi Racing Supercharge Kit
Let's get right down to it.
https://cimg9.ibsrv.net/gimg/www.mia...02dda1f1b0.png The kit is installed and ready to go (though the vacuum hose for the bypass valve is messy-looking and I'll be ordering a catch can as having a filter on the end of the valve cover line is hideous). But there were some hardships with the Bofi Racing Supercharge Kit. Altogether, the kit wasn't terrible to put on, but there are grievances and problems that will always need to be solved along the way. Problems With the Kit and/or Description of Needed Parts:
1: Prior to the installation of the power steering pump bracket, this is how the belt sat on the pulleys. https://cimg4.ibsrv.net/gimg/www.mia...f53cb7b781.png 2: After installation of the power steering pump bracket, the belt now rides properly on the pulleys. The "furthest" pulley was shimmed with two M10 washers to allow the belt to ride in the middle of the pulley. Pictured is the pulley PRIOR to shimming. https://cimg5.ibsrv.net/gimg/www.mia...54c6ffce97.png 3: The power steering pump bracket that is need, along with a "This will work for now" bolt and spacer setup. https://cimg6.ibsrv.net/gimg/www.mia...995f065945.png 4: R Theory alternator ribbed pulley. R Theory Aluminum Water Pump and Alternator Pulleys: This was a miscommunication error, however it worked out. I have a 1.6 alternator which needed a 1.8 alternator pulley. In my case, the 1.8 ribbed pulley does fit my 1.6 alternator, however, if the spacer is removed from the alternator, the pulley comes in contact. If the spacer is left it, the pulley sits too far forward on the alternator shaft. If the pulley is flipped, it cannot be tightened down and makes contact with the alternator's body. The solution to this unique problem is to make a shim out of a washer approximately 2 MM in width, drill out the center of the washer and grind it down so it will fit onto the alternator at the proper height. Or you can use a 5 rib pulley from a Chevrolet 2.5 Iron Duke. It fits quite nicely, but it is not good looking. |
Vendor Review
Bofi Racing: Wonderful vendor. I purchase the kit in early December of 2021 and it was received in March of 2022. The total cost, including shipping, for the kit and the overlay pulley was $3,551.79. Which isn't a terrible price whatsoever. There were bits here and there that needed to be purchase; R Theory Motorsports pulleys, a power steering pump bracket from Miata Source, and a Dorman crank pulley. Although the kit needed some massaging and there were some problems with their description, their customer service has been nothing but stellar. Given the time zone difference, they've been quick to respond over Facebook Messenger (and would likely be fast to respond via email as well). I'd definitely be giving them money in the future if I hadn't spent it all at once on everything I needed. R Theory Motorsports: We had some miscommunication, but the owner was communicative and offered a solution (I didn't take it as the cost to ship mine back and the new one to me would be near the price of the pulley I needed). I didn't take them up on the solution, but will be purchasing the correct pulley separately. That being said, their customer service was great as well, but, like Bofi, their descriptions could be more succinct and accurate. I ordered the correct pulley for the 1.6 alternator and it fits wonderfully. While the 1.8 pulley fit with some modification, the belt was not seated properly on the crank pulley and was wearing prematurely. Now that the correct alternator pulley is on, the belt is aligned properly. A 1.8 alternator pulley will get you by if you happen to have one, but be prepared to replace the alternator belt sooner than later. Miata Source: Zach is nothing but great. Shipped the bracket quickly, definitely fair pricing, though the description said hardware would be included, no hardware was provided. Not a big deal, as the non-power steering bracket utilized the same hardware. Zach is a used parts and new parts vendor and I've used him several times. |
Update
While breaking in the clutch on day 2, not getting a block from home, I hit 1 PSI and the intercooler piping off of the supercharger's outlet blew off. The provided worm screw clamp failed causing the silicone piping to blow off into the belt, shredding some of the interior of the hose. Luckily, the part of the intercooler hose that was damaged was close to the end and doesn't appear to harm its ability to hold more boost than 1 PSI. I have doubled up on worm screw clamps at the outlet (using better clamps) and have ordered T-Bolt clamps for the rest of the piping. The original review will be updated and I'll get in contact with Bofi to see if there's anything they can do about the problem I've encountered. I don't hold out hope they'll replace the hose, but if they offer a discount on the hose or free shipping to the States that'd be wonderful. They're a smaller company, so there's only so much that they can reasonably do. |
Midsommar update?
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Originally Posted by douginjenison
(Post 1640453)
Midsommar update?
While the engine and kit did very well over the course of the last couple of months, there are some things that will need to be purchased to make the kit "finished" in my eyes:
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Hi, I have a 1992 Miata na 1.6 with a self built supercharger kit. I would like to mount the Bofi Racing overpulley, but I don't understand if I can mount it on my original pulley and why I should also change the water pump and alternator pulley.
Bofi racing told me that it fits on the 1.6 even without changing the other pulleys. I would like your opinion and experience before buying one. Thank you. https://cimg7.ibsrv.net/gimg/www.mia...9ede96fe71.jpg |
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