http://www.autospeed.com/A_0986/page1.html

Has anyone got some specs of the the car. Sounds marvelous. And how has he gotten the 2.4 displacement? I don't have acces to the autospeed's site...

tony

I second this request....

That car is built by one of the Rigoli's. I'm going to guess and say that it is both stroked and bored out. Shouldn't be too much work - if you bored out an EJ25 just an extra 5mm, you'd have a 2.7 or 2.8L engine.

"Just" an extra 5mm?! Damn, that's a helluvan overbore, 8! Doing some quick math, 5mm/25.4mm/in = 0.197in - that's more than 3 times the most I've ever heard for boring out an engine. (The most I've ever heard is 0.060in over).

Pat Olsen
'97 Legacy 2.5GT sedan

I think some people have got a little comfused..

There isnt enough material to bore out 5mm!!

The most people go to is 0.5mm

5mm will remove the liner (assuming 2.5mm RAD)

Stroking returns the biggest capacity gains... boring doesnt return much..

stroking a 2.5 with 81mm stroke and 100mm bore will only push it to 2.6'ish

J.

Heh, just a number I threw out as I was doing some math... not something I'd actually do!

Jay - .5mm dia. or rad.?

5mm dia. or rad.?

:lol: when isn't bore measured by diameter?

He is probably using a 2.5L crank & rods as anyone (for example me 2.2L) can use a 2.5L crank and get a 2.4L conversion. So far the pistons/piston rings/piston ring lands are the weaker part followed by the rods.
Rich

Colin - Hey man, doesn't .020" sound a bit small? :p

Well, no autospeed members here obviously. Just bumping this post in hope that someone know the answer about the power and such...

I read about a one modded Skyline GT-R located in Finland which launched to 200kmh in 9 seconds, 1/4 in 11 sec. I'm hoping that the 2.4 wrx would launch faster :) faster than Yellow Lambo.

Maybe I'm dreaming... The Skyline in itself one bad ass car. 4wd, aluminium hood, 2.6 twin turbo, very strong block, magnesium wheels. Don't know about the driveability, though. Actually it's more Prince than Nissan, since the manufacturing of the Skyline is mostly left to Prince after the fusion.

I wan't ez30 WRX or something big, urph... Size doesn't matter - yeah right...

tony

I have a subscription to Autospeed, and I've copy/pasted the part about the engine mods below:

"Needless to say, the car was attacked with a lot more than just bolt-ons. Out came the robust Subaru EJ20 quad-cam 16-valve engine and the Rigolis set to work working the magic that they're now dab hands at. The first step was to stretch the internal swept capacity from 2.0 to 2.4 litres (2.4, not 2.2 litres like the Rigoli vehicle). This was done using an atmo 2.2-litre block, which was then kitted out with a TRP (Tony Rigoli Performance) stroker kit. This incorporates a long-throw crank, forged rods, forged pistons (giving around a 7.5:1 CR, like the Rigoli's), heavy duty bolts rings and bearings. The rest of the engine received an O-ringing, copper head gaskets and all-important heavy-duty head studs. Subaru's effort with the 2 litre's DOHC, 16 valve alloy heads was pretty good, so these were bolted on standard - just like the Rigoli racer.

"Alfred's car runs the same turbocharger that's used on the Rigoli WRX. Mounted off a custom top section of exhaust manifold is a Turbonetics roller-bearing T60/70, which the lads at TRP have nicknamed the T62. Both cars use the same type of wastegate to bleed off excess exhaust gasses - a 42mm external Turbonetics Racegate. Controlling boost on Alfred's car is a pneumatic pressure regulator located under the bonnet. Simple but effective.

"The previous front-mount intercooler that had been fitted to Alfred's car was probably fine for the first phase of modification - but the stroker engine and big turbo required significantly more airflow capacity. This is now provided by a PWR (Paul Weel Racing) bar-and-plate front-mount 'cooler, which does the job very nicely thanks very much. There's no need for a water spray or anything fart-arse when you've got an intercooler like this...

"Note that - unlike the Rigoli vehicle - Alfred's streeter maintains the factory throttle location. The Rigoli car sees the throttle flipped onto the leading side of the intake manifold, giving a more direct airflow path - but at the expense of having to remove the air conditioning system. Alfred, on the other hand, didn't want to say goodbye to his air-con - and neither would we! Other turbo-associated hardware that's shared with the Rigoli car is the RBR blow-off valve (soon to be replaced), silicone hoses and heavy-duty hose clamps. A catch can is also fitted to prevent blow-by oil from entering the intake tract.

"Because Alfred had already had a MicroTech management system wired in, there was no need to replace this - only remap it. The MicroTech unit is now in control of four hi-flow 800cc injectors (around the same size as those used on the drag car). Some serious fuel pushing is performed by an in-boot surge tank and Bosch Motorsport pump teamed with a Malpassi rising rate reg."


Do any of you care to know how much power this car puts out?

"The Rigoli racer - at the time that Alfred had the work done to his car - was making 499hp at all-four-wheels on the TRP Dyno Dynamics dyno (on 42 psi boost). (And for our overseas readers, that's way, way more than this at the flywheel - the DD always reads far lower at the wheels than a flywheel figure!) Alfred's car is run at a more conservative boost level - ensuring heightened reliably. With its turbo set to push a relatively mild 25 psi, Alfred's beast has cranked out 405hp at all fours. Not at all bad considering how much harder it can be pushed!"


All I can say is, "Holy tap-dancing Christ..."
-Chris

Hi guys..

Its a simple conversion...

As I am now leaving the Subie community.. yep.. selling up and having a break from cars... I can disclose my project.. which was nearly completed:

2.5 closed deck block
Farndon crank with 81mm stroke
Billet PAR rods
JE double locked pistons
Cobb Tuning Stage 3 heads (but based on STI IV heads, with under bucket shims, Ferrea special alloy valves, titanium retainers...)
Copper gasket
Wire ringed
Farndon s99 alloy block and heads bolts
Garret GT40 turbo
Oil squirters
Uprated oil pump
Tubular headers
Tubular reversed inlet manifold
8 x 500 Bosch injectors
Pectel T6 (level 6) ECU
ERL Water injection
ERL water spray
Custom front intercooler
Custom front Radiator with built in power steering cooler
Mocal water/oil cooler
PAR straight cut dog box
Quaife front ATB LSD
Quaife rear ATB LSD
STI VC Centre (12kg)
PAR flywheel
uprated clutch

I had virtually all this stuff.. and have nearly sold it all now... so close.. but yet so far... :(

I was going for 700-800 reliable bhp

J.

Traitor!! Just kidding, Jay!

I'm curious about two things. First, why the secrecy when building up your car? And second, what will you be driving?

-Chris

42 PSI!! Wow, so that's how you get 500 wheel hp. Even at 25 PSI, 400 wheel hp sounds reallllly good.......hmmmm......

Thanks cakagan. And 499 on the wheels:eek: - missed the quarter mile time though. That'll be one killer car and not just a dragger. WROOOOOMMM

By the way: anyone dare to quess how much the 499@four wheels, would be at the flywheel?

tony

cakagan,
thanks for the article!

No problem! About the 1/4 mi time...

"Being a streetcar (yes, Alfred's WRX does get driven almost every day) the car hasn't yet run a quarter mile time - but you'd be a fool not to expect a 10 second pass. Looking at the power, the traction and the vehicle mass, that'd be a very safe guesstimate. Indeed, Alfred says it's a terrific weapon to drive on public roads, but - as you'd expect - there is the odd trade-off. That dog box can be a real stubborn bastard at times. If you want to change into a lower gear, you'd better be still rolling - or you're in for a big fight with the gear lever! Oh, and the dog box is a loud sucker too. Other than that though, it's safe to say that Alfred's Rex is pure ecstasy on wheels."


-Chris

10 sec quarter mile? That's kinda disappointing for such a heavily modded car, don't you think? I've read about some neons in the 9s. We ought to be able to do something at least that good.

42 psi boost? are you certain of that? How many times a day is that engine rebuilt?

a 10 second 1/4 mile time for a street car is a big deal. This car has AC, and all the creature comforts you would expect from a trick WRX. Your 9 second neon is a gutted race rig with one goal in life... run fast ETs.

Now having said that. Once the US guys get up to speed, i bet there will be 9 second WRXs in our country. We place a bit more weight on the 1/4 ET here than in the rest of the world.

-Nathan

Well, if it can do 10s on street rubbers then it's FAST!!!

I mean all the 9 sec RX-7 I have seen had to sort of adjust their suspension set up a bit and use drag tires to get in to 9s. So, 10s with street tires are FAST!!!

Of course the AWD helps a lot in this case. Saves you 0.x secs in 1/4miles.

"With its turbo set to push a relatively mild 25 psi, Alfred's beast has cranked out 405hp at all fours."

I think it'll run the 10-sec 1/4mi with the 25psi. I bet with 42psi and slicks, that car will run 9-sec 1/4mi.

How much boost was that Neon or those RX-7s running?

-Chris

not sure what diff setups or tires or any other drivetrain components the car uses but i would guess @510hp at the flywheel? that is of course taking into account a 25% drivetrain loss. 400 x 1.25 = @510. that is of course if i did the math right (most likely not) haha
"Good lord that's alotta power!"

Good game Frank, the math went wrong though 400 times 1.25 is 500:) . With the 42 psi boost that would be 625hp - that's a lot. I bet the tire choise will affect a lot in these power classes.

However seems that the the motor doesn't flow very optimal, since when increasing the boost with almost 70% (25->42) the gains are only 25% (400->500).
Earlier I compared the car to modded Skyline GT-R: Subie prevails.


tony

i thihnk the 25 psi 405 hp is on this guys 2.4 liter engine, and the 499 at 42psi is on the other guys 2.2 liter. i would imagine the 2.4 at 42 would be more than the 2.2 liter motor...

Hi there,

The rigolis dont seem to go in for refinement..

They seem to use stock heads and cams.. stock headers..

They just bolt on a big turbo... uprate the bottom end... and boost teh hell out if it.

There will come a point where the stock heads and headers will become the bottle neck.. remember boost is the resistance to the flow through the engine..

J.

jdchmiel-

You're correct, I just re-read the last paragraph. The Rigoli 2.2L car is at 42psi and puts out 499hp. Alfred's 2.4L is at 25psi and puts out 405hp.

What do they mean by "...using an atmo 2.2-litre block"? What is an "atmo" block?

-Chris