[Australia] Vauxhall Astra 4S Replica

[ant]

Re: Vauxhall Astra 4S Replica

Laminova Intercooler Inlet Manifold


Laminova heat exchangers are especially designed for intercoolers in turbo and supercharged petrol and diesel engines. The heat exchangers are compact, easy to install and more efficient than conventional coolers.

Laminova heat exchanger systems have a unique designed core for intercooler applications. The air-to-liquid system gives increased efficiency compared to an
air-to-air system. With the air-to-liquid system you will get cold air right from the start.



Benefits

* Superior cooling performance
* Extremely low pressure drop
* Ideal to integrate in the inlet manifold
* Increased response due to short flow length in the system
* Robust design. One-piece aluminium extrusion
* No soldering or braising - soft mounting with O-rings
* Reduced noise and pulsation. Improved airdistribution balance



The high performance, compared to that of the common plate style intercoolers, is a result of the extremely large surface area and the unique flow pattern. Laminova core design gives an extremely low pressure drop on the charged air side.

With intercooler cores installed, you achieve better torque, response and performance
compared to those of conventional coolers. The coolers effectively increase engine efficiency and decrease fuel consumption.

The air-to-liquid intercooler system needs a separate cooling circuit with a circulation pump and a separate radiator. Laminova also supplies intercooler housings for use in racing/aftermarket applications and as prototypes for test and evaluation.

[mick g]

Re: Vauxhall Astra 4S Replica

Nice work there Ant, is it an alloy block on that engine I see. What is the engine weight when fully assembled??

[ant]

Re: Vauxhall Astra 4S Replica

Mick yeah a fully alloy block... the weight of the 2.4L dry is 124kgs.

When I finally get the engine home I'll weight it with the supercharger ect.

[mick g]

Re: Vauxhall Astra 4S Replica

Thats not too shabby weight wise mate, I aim to get mine in around the 1000 kilos too

[ant]

Re: Vauxhall Astra 4S Replica

yeah I was surprised with the weight but when you see it apart and pick up the main block you know where the main weight must be in a C20XE. The 4wd system seems heavy from the look of it but here too I will weigh the component when I strip the GTR as a comparison with say the Cosworth 4wd or any other 4wd system people are thinking of.

[Dario]

Re: Vauxhall Astra 4S Replica

Ant: does this engine have the same bolt pattern at the gearbox as the xe and other xev(ecotech engines)?? So a gearbox as the f16/f20/f23/f28 will fit?

[ant]

Re: Vauxhall Astra 4S Replica

I don't know... when I have the engine here I can tell you.

I do have a drawing of the rear of the engine with the dimensions of the bolt holes etc... but thinking about it... the starter is on the right hand side looking from the front of the engine and the XE is on the left. So I suspect not.

GM Sport.jpg

[Dario]

Re: Vauxhall Astra 4S Replica

yeah, if it is on the right hand side it will be easier to fit it on old Opels with cih engines, the gearboxes there are having the starter on same side as this 2.4 16v eco engine... Think I just will stick with the old xe in my car then.

[ant]

Re: Vauxhall Astra 4S Replica

... nothing a adapter plate couldn't fix with a F28... would be an awesome front wheel drive car.

[ant]

Re: Vauxhall Astra 4S Replica

Update:

The engine has had all the machining done. The block has been debured and any rough casting removed from the block internals and assembly will be happening very soon.

Only change to the configuration was we opted not to run the Aluminum Flywheel.

After much discussion with a few people I have decided to modify the standard Cast Iron Flywheel and keep some of the inertia weight to help with the sort of motor sport I would be doing. Plus I will be running a standard gear ratio in the GTR Skyline box and the weight will help with gear changes keeping the engine speed between shifting. Thinking is it will be more exaggerated as the engine being supercharged will produce it's max HP and Torque at about 6000rpm so if the flywheel is too light it will fall off the max power curve too quickly.

[ant]

Re: Vauxhall Astra 4S Replica

Engine assembly is starting this week after the engine builder had a fall and broke some ribs... so I am on target to get the engine assembled, base programed and running for pickup by the end of September.
The GTR has the engine removed and I am receiving a CAD file of the 2.4L Eco bell housing to make my adapter plate in the CNC mill soon. The GTR front Diff will be removed/cut away from the Sump and brackets made to fix it to the cross member this looks to be fairly straight forward.

[ant]

Re: Vauxhall Astra 4S Replica

Update:

Engine ran today... fired up first go and is running perfectly.

Now it is running a bypass vacuum setup on the supercharger can be made to make it idle and adjusted so. I'll get some more pics and I am trying to get a short movie of it running on the engine test bench.

[Dario]

Re: Vauxhall Astra 4S Replica

good news Ant a little movie clip would be great!

[ant]

Re: [Australia] Vauxhall Astra 4S Replica

Update:

I have picked up the engine from the builder this week. It was a big 4000km drive to get it but boy was it a relief to finally have it sitting in my shed ready for the next part of the build.

Here is a peek of the engine running before loading into the car and driving back.

IMG_1689_s.jpg IMG_1690_s.JPGIMG_1691_s.JPG

[DarrenH]

Re: [Australia] Vauxhall Astra 4S Replica

very tidy job mate, congrats