NotStock Posted March 5, 2019 Share Posted March 5, 2019 Anyone using stock intake boots as adapters from throttle bodies to a plenum? This groove where they mount to a stock air box is pretty well perfect for the 1/8" material I would like to use to build my plenum. Only concern is if they will seal against the sheet metal by only using this ridge, or if I will have problems with boost leaks. I will use some supports to keep the plenum from blowing off. Maybe there is away to glue them in for added security? Just wondering if anyone had done it this way. Seems like an easy, clean, and low profile solution. Other options are to use silicone coolers or machine some adapters with an internal o-ring to fit over the TBs. Only thing that worries me about the o-ring idea is that everything will need to be bang on, like within a few .001" or else there will be fitment issues. Not so easy with a welded part and no mill... The stock boots are nicer than silicone joiners since I wouldn't lose the space needed to add a spigot to the plenum and won't need a million hose clamps in there cluttering things up. Anyway, just looking for some input. Thanks! Quote Link to comment
Leblowski Posted March 5, 2019 Share Posted March 5, 2019 There are multiple people on this site including me using this methode with succes. I havent glued them in as far as i know no leaks Quote Link to comment
Gixer1460 Posted March 5, 2019 Share Posted March 5, 2019 They would be a good solution IMO. The bellmouth will help with flow (for what it's worth in a boosted application) I'd try and get the hole on the plenum metal as tight as possible to the rubber groove depth and deffo glue / seal it with some silicone / RTV - get both surfaces ultra clean. It would be a prime suspect area for boost leaks without sealant. Quote Link to comment
clivegto Posted March 5, 2019 Share Posted March 5, 2019 This is one of Dave Dunlop early system's I got of @MeanBean49a few years ago, works a treat. Quote Link to comment
Goo'Roo Posted March 5, 2019 Share Posted March 5, 2019 No leaks until 14psi with no sealant. 1 Quote Link to comment
NotStock Posted March 6, 2019 Author Share Posted March 6, 2019 Amazing! Thanks everyone. Should have asked earlier... I have been thinking about this for a while. BTW, that fabricated charge pipe and plenum is nuts! Really cool setup. Quote Link to comment
NotStock Posted March 6, 2019 Author Share Posted March 6, 2019 The more I look at these pictures, the more I like how tight everything fits. The plenum is right on top of the carbs/TBs and looks really tidy. I don't have room for the big gap you get with silicone joiners so this will work great. Quote Link to comment
69chris Posted March 6, 2019 Share Posted March 6, 2019 i wish my plenum had stock boots, even after cutting the stubs down as much as i dare on mine its still a right twat to squeeze in and out !!! Quote Link to comment
Leblowski Posted March 6, 2019 Share Posted March 6, 2019 If your not confident weather it seals or not you can always make a ring with fit’s in the belmouth so it get’s forced against the plenum 1 Quote Link to comment
MeanBean49 Posted March 6, 2019 Share Posted March 6, 2019 Had stock boots on mine for years, just run a bead of Aircraft fuel tank sealer in the grooves just to help seal completely. Quote Link to comment
Paulm Posted March 9, 2019 Share Posted March 9, 2019 Yep,stock boots on my 36s for several years with no issues, now running 34s with stubs and silicone. Quote Link to comment
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