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Sprintex supercharger plenum
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   380 Projects section -> Sprintex supercharger modMessage format
 
RM380
Posted 26/8/2013 19:19 (#15567 - in reply to #15018)
Subject: Re: Sprintex supercharger plenum



Frequent flyer Bronze

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Location: South Australia		I take it that it drives much better than before.
What sort of fuel consumption do you get now?
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Administrator
Posted 27/8/2013 02:54 (#15573 - in reply to #15567)
Subject: Re: Sprintex supercharger plenum



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Location: An island off southern Tasmania.
RM380 - 26/8/2013 19:19

I take it that it drives much better than before.
What sort of fuel consumption do you get now?



Dunno...only driven it home so far....
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wsbtt
Posted 30/9/2013 09:12 (#15761 - in reply to #15573)
Subject: Re: Sprintex supercharger plenum



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Location: Brisbane,qld		Having a go at this mod, working on these in/output plumbing , had to fab the piping as i could'nt find an extrusion this size which ended up 70mm x40mm id with the round end being 60mm id ,not sure when ill get a chance to remove the plenum to chop her up, maybe pull the whole lot off and run her with no sc for a bit, still deciding



(20130928_133815-resized-500.jpg)



Attachments
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Attachments 20130928_133815-resized-500.jpg (118KB - 671 downloads)
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Administrator
Posted 1/10/2013 09:42 (#15762 - in reply to #15018)
Subject: Re: Sprintex supercharger plenum



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Location: An island off southern Tasmania.		you will need a stcok plenum to run her with no s/c and a smaller belt and a couple of hoses from rocker covers etc.

it's a big job to modify the plenum assy, suggest getting a pro to weld it up.

if you miss a bit of debris it WILL stuff your motor...welds have to be pretty damn good.
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wsbtt
Posted 1/10/2013 11:03 (#15763 - in reply to #15762)
Subject: Re: Sprintex supercharger plenum



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Location: Brisbane,qld		Go the stock plenum etc from my 75 for the magna, im a welder by trade , its a big job yeah, i reckon ill give it a burl though, heres some pics of how i made the oval section i used, cheers



(20130919_084901-resized-500.jpg)



(20130919_084705-resized-500.jpg)



Attachments
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Attachments 20130919_084901-resized-500.jpg (74KB - 635 downloads)
Attachments 20130919_084705-resized-500.jpg (53KB - 670 downloads)
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Administrator
Posted 1/10/2013 16:47 (#15764 - in reply to #15018)
Subject: Re: Sprintex supercharger plenum



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Location: An island off southern Tasmania.		If you're a welder then my apologies.

You'll probably do far better than my attempt....

I have plenty of stock 380 plenums if you want to be slack and use one.


Have you looked at the plenum chambering pics I posted?
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wsbtt
Posted 1/10/2013 18:59 (#15765 - in reply to #15764)
Subject: Re: Sprintex supercharger plenum



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Location: Brisbane,qld
Administrator - 1/10/2013 16:47

If you're a welder then my apologies.

You'll probably do far better than my attempt....

I have plenty of stock 380 plenums if you want to be slack and use one.


Have you looked at the plenum chambering pics I posted?


All good, you effort is great , don't know why sprintex didnt think of it anyhow, especially with the intake temps so high, im pretty sure i dont want to replace the cats again or even worse a short motor, if you can spare a plenum i will take one as the one i have has been modified to go into my valiant( ha ha) yeah i have been studying the pics you posted, did mig weld it or tig ? I used the oval shape runners thinking i could get more flow
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Administrator
Posted 1/10/2013 22:37 (#15766 - in reply to #15765)
Subject: Re: Sprintex supercharger plenum



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Location: An island off southern Tasmania.		It was tig...thats all i know i had an engineering company do it (Robert Lange Engineering)

300 bucks it cost...
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Administrator
Posted 9/2/2014 13:53 (#16003 - in reply to #15018)
Subject: Re: Sprintex supercharger plenum



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Location: An island off southern Tasmania.		It's the best dyno result for any supercharged 380/

And it won't blow the engine.
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Administrator
Posted 7/6/2022 19:46 (#16357 - in reply to #15018)
Subject: Re: Sprintex supercharger plenum



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Location: An island off southern Tasmania.		Forgot to finish this thread....it achieved 201kw at the wheels on a stock engine....7 psi boost
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