Supercharger for Subaru?

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El_Freddo
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Post by El_Freddo » Mon Apr 16, 2012 9:11 pm

Tweety wrote:I'm keen whichever way I go but it has to not be a gamble, waste of hard earned cash. That's where the sC14 has an edge as you say.
And on the flip side it still has to look good! Shoving a super charger under the bonnet and making it look some what good is one thing, doing the same on an open engined trike is a completely different thing - it has to be a master piece to complement the rest of the work that's been done on the trike!

But you already know all of this.

Custom intake - might as well go the whole hog eh? While you're at it have you looked into having it chromed :twisted:

Yes it's easy to throw ideas to you that sound awesome - it's a completely different story when it comes to seeing it through!

Cheers

Bennie
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Tweety
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Post by Tweety » Mon Apr 16, 2012 9:35 pm

I love the input you guys give on this forum.

Custom intake manifold might be obtained from the aircraft guys. I wouldnt have the knowledge/ability to build one and like I mentioned there are inbuilt features of the original that are not known by lay people. Like my old Squadron Leader told me in the RAAF "car manufacturers knew a lot more than you when they designed things".

Chromed engine items? Very good question. I think polished alloy looks as good. And those exhaust ends chromed would be great. So selective chroming is the choice there but not likely the intake. Rocker covers yes etc. A cleaned and polished SC14 would look good but the cold air intake could be spruced up.

We all know the pressures of finances and dare I say it- marital partners. Deb is pretty good and understanding and loves the trike. But we have spent a lot of money on it. And work hasnt been plentiful and my health not 100%. So its why I'm brainstorming at the minute on this topic.
We have time.

But I've learned in the past to consider all options first- do the investigation into it all then make a decision. The SC14 most likely will be it. Suitable carb likely SU 1.75 inch draw through. The brain goes crazy on this shit! I dream of cutting off the centre of the original intake, buy two SC14's one for each head, a SU carbie each side and dual superchargers....be a pioneer with a twin supercharged ea81..... then I remember the Vicroads rules and its limit on these things, make a cuppa and stop dreaming.

You younger guys have this to look forward to! and never let a female tell you to give it up! As I've documented....my last woman said "its the trike or me"...Tweety won. I passed her on the freeway (Hume) a couple of months ago while riding Tweety....I was having the fun.

I love my machine being unique. Like the look of people trying to figure it all out...as they lift their jaw off the ground...its a buzz.
[SIGPIC][/SIGPIC]Tweety trike- EA81 (full reco 2014) 32/36 weber, SPFI manifold, 9.5:1 CR, VW auto.

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El_Freddo
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Post by El_Freddo » Mon Apr 16, 2012 9:44 pm

Tweety wrote:As I've documented....my last woman said "its the trike or me"...Tweety won. I passed her on the freeway (Hume) a couple of months ago while riding Tweety....I was having the fun.
GOLD! Did you throw her a little cheeky wave?

Cheers

Bennie
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Tweety
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Post by Tweety » Mon Apr 16, 2012 10:20 pm

Nah...couldnt bring myself to wave.

but Debbie did hahahha

That was the wmoan who criticised me for spending $11000 over 7 years on my hobby (building RC model airplanes mostly experimental designs)

She said "are you proud of wasting that money"

reply " better than the 35 grand you've wasted on cigarettes". checkmate!
[SIGPIC][/SIGPIC]Tweety trike- EA81 (full reco 2014) 32/36 weber, SPFI manifold, 9.5:1 CR, VW auto.

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Post by Venom » Tue Apr 17, 2012 7:10 am

Haven't seen it mentioned yet but Ram engine in california have a 200hp supercharged ea81, on top of their other aircraft suby engines. Pretty sure that is with inhouse made twin port heads though. Surely they'd be a good source of info? They're also developing a FI manifold for the 81, which could make SCing easier?

For shits and giggles i was thinking of turboing an EA81 and came accross someone adapting a single poitn -FI EA82 manifold onto their E81. Replace the factory fuel injector with a more modern one, say a singel wrx injector. Basically swapping a carb for one big injector, but much easier to adapt to forced induction. Run that off a standalone fuel management unit. Could work just as well for a SC setup?

I didn't think a low boost turbo setup would require a lower than standard compression. Just a matter of picking the right sized snail. EA82 factory turbos have very useable boost/torque from 1500prm, i think they run something like 6-7psi?

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steptoe
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Post by steptoe » Tue Apr 17, 2012 8:19 am

the idea of turboing my EA81 with twins and LPG is what got me into this whole mess - first I bought a rolling shell GLTA, then a blown HG GLTA same day , ~179 VIN's apart - still reckon it is worth a go just need oil feed and return sorted, got the up pipe ......

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Tweety
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Post by Tweety » Tue Apr 17, 2012 9:55 am

RAM http://www.ramengines.com/index.html

sent them an email for them to keep me updated.

Their web site suggests they are still in the development stage re: Fi and manifolds.

edited to add...

see http://www.leoneturbo.com/docs/EA81_SPI_guide.pdf a great detailed write up in SPFI ea81 conversion. but admittedly this is beyond my capabilities. still its an option.
[SIGPIC][/SIGPIC]Tweety trike- EA81 (full reco 2014) 32/36 weber, SPFI manifold, 9.5:1 CR, VW auto.

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Tweety
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Post by Tweety » Tue Apr 17, 2012 7:22 pm

Got a quick eamil back from RAMS inthe US.

Quote

Tony

I will keep you involved as the boxes will be ready next week (waiting for my guy , he is on vacation) I have a stock subie on the dyno and we will be using it for a base, then we will be installing the SEFI on it . I have already installed the sefi on a ea82 but it was a engine we built and with the efi it developed 130 hp with stock cams.

Anyway watch our site.......

Ram Performance, Ltd
Ron


site is at http://www.ramengines.com/
[SIGPIC][/SIGPIC]Tweety trike- EA81 (full reco 2014) 32/36 weber, SPFI manifold, 9.5:1 CR, VW auto.

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Tweety
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Post by Tweety » Tue Apr 17, 2012 8:45 pm

This is the deal.

Will wait till RAMS puts up its manifold FI set up on their web.

But it is looking increasingly possible to seek out a SC14 and 2 inch sU carbie (unless I can use my weber- not likely). Draw through set up. Blower can go one side of where carby currently is. SU carbie can be directed rearward and to the side. 6psi sought. Pulleys to suit 6-8psi.

Research to be done on compatibility to the auto trans. Anyone know of any ill effects?

BOV ? dizzy retard $260 (see recent post) SC14 $250-400. + bits.

I'm nearly done with web searching.
[SIGPIC][/SIGPIC]Tweety trike- EA81 (full reco 2014) 32/36 weber, SPFI manifold, 9.5:1 CR, VW auto.

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Tweety
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Post by Tweety » Mon Apr 23, 2012 2:35 pm

thanks Venom for your reference to RAMS.

Wife and I are moving forward now with Tweety.

Plan is to save enough in the next 16 months to do our around Australia trip in the late wniter 2013. if we cant then 2014.

Means a supercharger would be desired late this year or earlier- for the ease of towing uphills etc. plus the show stopper effect :cool:


From what I've read (a lot) the best way for me is:

- SC14, original manifold seeking 5 psi boost in a draw through with 2" SU carbie. Pulleys to suit 5psi. then sell the 32/36 weber

- no intercooler required with this little boost but would have one if feasible and advised no problem

That's the plan guys. if someone knows of a good SC14 available let me know. If not I'll seek one soon. Also if someone can recommend a performance centre that specialises in the installation elt me know.

thats it. Any opinions? (not EJ thanks) like em but want to keep the ea81 - the old fart engine!!)

edit addition: see http://www.youtube.com/watch?v=_NLMyUmL8Mg this is a vid of a commodore on and off SC14 operation. my concern now is the noise level. Deb is gunna have a rocket under her???
[SIGPIC][/SIGPIC]Tweety trike- EA81 (full reco 2014) 32/36 weber, SPFI manifold, 9.5:1 CR, VW auto.

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Tweety
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Post by Tweety » Mon Apr 23, 2012 8:51 pm

not an sc14 but this looks neat

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[SIGPIC][/SIGPIC]Tweety trike- EA81 (full reco 2014) 32/36 weber, SPFI manifold, 9.5:1 CR, VW auto.

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Post by El_Freddo » Mon Apr 23, 2012 10:58 pm

^ Wasn't that from a link you've posted about the complete setup?

Also, I've found the other half of the alternator bracket, but it's got the fan attached to it. I'm thinking an L series unit will do the same without the fan on it and would look a lot neater too.

Cheers

Bennie
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Tweety
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Post by Tweety » Mon Apr 23, 2012 11:26 pm

Hang onto that bracket if you are not using it Bennie. Things are so up in the air with the Sc at the moment. eg could be using the cast iron mount to attach the SC to or the tensioner.

Depends on what side the SC goes onto the engine.

Hoping to go for a ride over winter to catch up.

Getting tweety's electric sunroof operational at a auto electrician Thursday. They know what they are doing :D
[SIGPIC][/SIGPIC]Tweety trike- EA81 (full reco 2014) 32/36 weber, SPFI manifold, 9.5:1 CR, VW auto.

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Post by El_Freddo » Mon Apr 23, 2012 11:28 pm

Tweety wrote:Getting tweety's electric sunroof operational at a auto electrician Thursday. They know what they are doing :D
You need me to express that switch over to you?

Cheers

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Tweety
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Post by Tweety » Tue Apr 24, 2012 4:51 pm

No thanks Bennie. appreciate the thought though.

The auto elec had a look at it and needs a 6 pole one of a certain sort that will accomodate the auto stop etc etc. not worth the worry. regards.
[SIGPIC][/SIGPIC]Tweety trike- EA81 (full reco 2014) 32/36 weber, SPFI manifold, 9.5:1 CR, VW auto.

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Tweety
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Post by Tweety » Fri Apr 27, 2012 10:38 pm

Just considering other readers of this thread.

A very good site explaining superchargers (mainly for V8) but same principle is at

http://www.holley.com/data/Products/Tec ... R10243.pdf
[SIGPIC][/SIGPIC]Tweety trike- EA81 (full reco 2014) 32/36 weber, SPFI manifold, 9.5:1 CR, VW auto.

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Post by steptoe » Sat Apr 28, 2012 2:39 am

and another:

http://www.youtube.com/watch?v=s4cbHq1CtRk

even though total time says 4:07 it really only seems to go for about 45 seconds

Same thing is for sale at 85.00 Malaysian Ringgits if you have any kicking around - about $A25

add 5.00 MR for local post in Malaysia . I got a bargain at $A13.99 posted , from China :D

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Tweety
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Post by Tweety » Sat Apr 28, 2012 2:28 pm

If that "model ducted fan motor" does anything it will be to make the air/fuel mixture consistant.

From what I've read blowing ability isnt pressure.

Let us know how it goes Steptoe
[SIGPIC][/SIGPIC]Tweety trike- EA81 (full reco 2014) 32/36 weber, SPFI manifold, 9.5:1 CR, VW auto.

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steptoe
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Post by steptoe » Sat Apr 28, 2012 7:00 pm

Given there is nothing to contain the blades from letting go, no fine mesh to prevent further damage, and cheapish affordable price, and no warranty card, or disclaimer -I think I could only trust it as an exhaust tail pipe extractor - that'll take a few of our senior members back to 1960's ads in car mags !!

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Tweety
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Post by Tweety » Thu May 03, 2012 11:11 pm

[SIGPIC][/SIGPIC]Tweety trike- EA81 (full reco 2014) 32/36 weber, SPFI manifold, 9.5:1 CR, VW auto.

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