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Location:
Eskilstuna, Sweden
Registered:
May 2002
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Location:
Sydney
Registered:
May 2002
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Re: What would be the best performance from N/A 4AGE
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Sat, 09 November 2002 08:41
 
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Bill Sherwoods page is the most entensive source of turning a stocker 4a-ge into an un streetable monster 4a.
check it out, I'm at work so I dont have the page, something like www.billzilla.com.au
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Location:
Sydney
Registered:
May 2002
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Re: What would be the best performance from N/A 4AGE
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Sat, 09 November 2002 08:44
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found it with a simple search,
http://www.billzill.org
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Location:
Perth, WA
Registered:
October 2002
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Re: What would be the best performance from N/A 4AGE
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Mon, 11 November 2002 00:39
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it all depends on your idea of what's streetable i guess. if you're happy to have it borderline undriveable, and needing rebuilding/work all the time, formula atlantic spec would be 'interesting' but a total pain in the ass.
i've seen people around the place claiming up to 140-150rwkw on a setup like the one you've described, which is pretty much what i'm trying to put together eventually.
talk to bill sherwood and 1bam777 (both on these forums) both of whom have very powerful n/a 4age's.
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Location:
Melbourne
Registered:
May 2002
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Re: What would be the best performance from N/A 4AGE
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Mon, 11 November 2002 01:42
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from my experience playing with 4age's you will never get 140rwkw out of a n/a 4age - you might come very close with a formula atlantic engine, but that can not be called streetable. for around $15k you can buy a second-hand atlantic engine(reco) ....
the setup you have proposed will most likely make around 100kw at the wheels (depends on your rpm too!) - i don't know whether you are planning on using a small or big port head, and what lift the cams will be. ditto on the c/r.
T
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I supported Toymods
Location:
melbourne.victoria.austra...
Registered:
June 2002
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Re: What would be the best performance from N/A 4AGE
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Mon, 11 November 2002 02:39
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methinks 140-150rwkw and you're talking about forced induction..
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Club Member
Location:
sydney
Registered:
May 2002
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Re: What would be the best performance from N/A 4AGE
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Mon, 11 November 2002 05:26
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the new car will be running a similar setup to what you have described except for the fuel management system, ill let you know what you can expect hopefully at the next dyno day if I get time to reassemble the engine and get it back in the car in time
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Location:
Brisbane / Gold Coast
Registered:
May 2002
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Re: What would be the best performance from N/A 4AGE
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Mon, 11 November 2002 08:11
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high compression piston kit
* 272 and 264 cams
* valve spring set and stage one port job (like Eds work)
* adjustable cam pulleys
* nice extractors, or standard as they are still good
* Quad throttles of 20v
* lighter flywheel
* some AFM computer to run the shit
That engine will make about 75kW - 80kW at the wheels. There's no way you'll get 140kW at the wheels from an n/a 4AGE on the road.
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Location:
Perth, WA
Registered:
October 2002
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Location:
Eskilstuna, Sweden
Registered:
May 2002
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Re: What would be the best performance from N/A 4AGE
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Mon, 11 November 2002 12:03
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Thanks gents,
T, I would imagine using a lift of 7.9mm both sides a C/R of around 11, not sure of the big/small port deal (which has been talked about to death at Club 4AG), I tend to think that both can work.
Thanks Bill and Bugman for those details, it sounds like an aweful lot of work doesn't it. Which explains my interest in the BEAMS engine threads going on here. Which is the direction you are taking now isn't Bill?
Cheers.
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Location:
Melbourne
Registered:
May 2002
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Re: What would be the best performance from N/A 4AGE
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Mon, 11 November 2002 23:34
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the old 4age race motor in the mr2 ran a ported small port head, forged, small journal groupA crank, cosworth forged pistons (10.5:1 - too low c/r for the cams), 320 duration 9.8mm atlantic cams, shim-under buckets, race valve springs, alloy flywheel, 4-1 extractors, quad t/b's & adjustable cam gears. (and programmable engine management, with no emissions stuff)
this motor made 96kw at the wheels, with some odd driveshaft angles (so it probably made about 105kw in an ideal installation)
with a higher c/r bottom end (11.5/12.5:1) it possibly would have made 115kw - and it would have been classed as almost streetable...
if you are running standard lift, ~11:1 cr, factory extractors etc, Bill's estimate will be about spot on.
fyi - the mr2 is now being rebuilt totally spaceframe with a current celica 2zz motor in there.....
T
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