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ZROSSA

Zrossa's r32 VRZ

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Howdy all,

 

Its been a long time between posts, however I still have my 260 2+2. I have had this for at least 12 years now and am about ready to paint it. Just a few things to tidy up, the roll cage no longer meets current rules so I will have to change out the main hoop and make a few more while I am at it mods. Suspension and body work is all done. Its taken a long time and was much more work then originally planed.

 

I plan to use the car in Targa style events here in New Zealand. The car was originally set up for a SBC. I put a lot of time and $ into the engine and has it bored and stroked to 383 and tuned so that it was making 515bhp at the crank. Two sundays ago some scumbag broke into the workshop and stole the engine trans and custom headers I had made.

 

BUMMED!

 

There is light at the end of the tunnel however. I picked up a r32 vr6 vw engine this week. I have always been fascinated with the vr6 engine. Been doing a lot of research over the years. I bought its little brother VR5 to put in my Ur quattro but these cars are getting a bit rare so i decided to  stick with the original engine. The VR5 is now in my old KE35 race car.

 

So the plan for the Z is to mount the vr6 as far back as it will go. By my measurement it should sit just behind the X-member. I have 3 big holset turbo's in the shed HX50,52 and 55. I will probably use the 50 in the vr6 if i can find an exhuast housing that will work (any one know if you can use housing of other turbo's?) The R32 vr6 is a little lighter than other Vr6 engine at 155kg. This should take 83 kg off the front end of the car over the SBC. Hopefully we will have a race ready weight below 1200kg. Targa rules do have a power to weight rule which we will be well under.

 

The gear box is not decided yet. I have a Bmw gs6-53 coming from  the UK that would work, however as my corolla will use the same set up i will need to find another one. Quick time make an adapter to mate the VR6 to GM style boxes so that's an option. I dont want a t56!  The TKO600 is an option. Any other less expensive ideas?

 

Any how, I will save this before it gets lost for the third time. Photos to come....when i figure out how. Been on Hybridz for 15 years and still dont know how to put a photo up.

 

Cheers,

 

Douglas aka ZROSSA (red z)

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I made the front end myself. The rear is done as well to delete the bumpers and hopefully stop some of the lift inherent in these cars. The photos are old but unfortunately the car hasn't progressed that much sense. There are more photos in my gallery.

 

The car runs full coil overs with some of John Coffee's fancy shocks. I have made a few modifications over the years. Braced the rear suspension mounts and done a bit of seem welding. I will get some photos of those mods when I get the chance. My insurance Company has paid for the theft of the engine and parts and I was hoping to use the money to speed things along. It looks like that might change a bit as an opportunity to buy a another vineyard has come up (i'm a wine maker) and it might be the next step my business need to take. 

 

i also have 4 other project cars, Bmw 635 csi with spherical bearing suspension,coil overs and a turbo. Ur Audi Quattro with megasuirt and a rather large turbo, Ae11 Mr2 with a twniscrew supercharged 5 valve, and my baby a ke35 corolla with mid mounted VR5 turbo and a space frame( the race car).

 

I do make life difficult!

 

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Things are lining up!

 

I have had a few delays trying to find a gear box that would meet my needs. Ultimately i want to run dog gears in the car and I couldn't really find anything that was in the budget. Then there is also the issue of trying to mate a FWD vr6 to a RWD gearbox. Quicktime claim to make an adapter but after several attempts to contact them I gave up.

 

I stumbled across this web site subarugears.com . It got me curious so I e-mailed and Todd got straight back to me saying He actually had the conversion drawn up in cad on his desk as we were writing. Todd knows everything there is to know about Subaru gear boxes....I have learned a lot.

 

So I can hear all you saying...."but is 4wd". One of the beauties of these boxes is that you can make them RWD, FWD and AWD relatively simply. I Have bought two gear boxes now. The Zed will run a 5 speed with straight cut dog gears which are rate up to 850 bhp, The corolla will use the bigger 6 speed with a similar set up( we will convert the six to a 5 speed and it should be good to around 1200 bhp)

 

The cool thing about these boxes is that they are dirt cheap. I picked up the 5 speed for $200. Sure the dog gear will end up owing me another 5k but that is still a lot less than setting up a tko or t56, and much much less than a proper dog race gear box.

 

I'm Pretty excited! Go on to you tube and have a listen to how these VR6's howl when boosted.

 

Cheers,

 

D

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Its been a good week!

 

I had a local guy build my roll cage about 6 years ago. I then put the car in the shed and never sent in the paperwork to Motor sports NZ (MANZ). I went to send in the paper work a couple of years ago and MANZ had a shitty fit and said the cage no longer met the spec's. The new spec called for a larger diameter main tube. Another friend of mine had similar problems. There is a clause in the MANZ spec's that says you can build with any material as long as it meets certain load criteria and you had engineering calculations to prove it.

 

My friend and I have been trying to find someone to do these calculations for years.  In complete and utter frustration i went down to the shed to cut out the old cage two weeks ago. At the last minute i remembered a tread on the net about a guy running a classic race car with the same problems. I found the thread and it had moved on a bit since I last saw it. A couple of PM's later I had contact details for a man that could ....and did the Job!

 

The calculations have been done. The cage comply's!!!!  WOO HOO!!!!!

 

Just waiting on my guy in Aussie to send the adapter plate and I can start doing mounts and get it going.

 

D

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My how time fly's!

 

A bit of progress has been made. The adapter plate is here. I have trial fitted the trans and converted it to RWD. These Subaru boxes are a smart piece of engineering and pretty easy to work on.

 

So... first things first: I have organized for a fabrication firm to do some modifications to the roll cage. The local rules say the welder must be registered (i'm not) and I would rather not mess with going through the fire wall. I have attached a drawing of what will be done. The new bits are in pink.post-169-0-63273400-1475779143_thumb.jpg

This was never meant to be a full on race cage....I have a race car for that. The reason for the extension to the front struts are pretty obvious. The tube coming from under the dash to about midway is done this way to allow easy access and to pick up the transverse seat mounts on the 2+2 chassis. I will add a little more bracing in this area so to make the seat mount into a stronger part of the chassis. Like a transverse beam. I hope to add a bit of stiffness but more importantly a bit of side impact protection.

 

So for those of you that still don't know WTF and R32 engine is this is what they look like....post-169-0-51209200-1475779799_thumb.jpg

 

Here is the Subaru Trans mocked up in the chassispost-169-0-68077000-1475779957_thumb.jpgpost-169-0-90014100-1475780054_thumb.jpg

So the trans fits quite well. It looks like the starter will fit with out much manipulation. The trans mounts will be a bit funky as they are further back then stock, but shouldn't be to hard to make. I will use the top part of the stock Subaru mount attached to the trans and basically join it to some stock Zed mounts on the chassis. the flex will be taken care of by urethane bushings on the chassis side just like in the stock zed.

 

here is the adapter plate to mount the VR6 to the scooby.post-169-0-21284600-1475780557_thumb.jpg

Its a fancy peice of work and came with a really nice looking flywheel that weighs 4.5 kg. At least 10 less then the stock flywheel. It is designed to use the stock Subaru starters and clutch set up so parts should be cheap compared to the VW stuff.

 

Trans and engine joined in un-holy matrimony!post-169-0-37177200-1475780762_thumb.jpg

 

I took the valve cover off the engine yesterday and ran into a bit of an issiue. You can turn the engine over but the cams are stationary. Bugger. Oh well the engine was free after I sold the accessories I'm not using. I also went to use the fork lift to pop the engine in and start the mounts but now the forklift wont start....Double Bugger! Guess I should stop playing on the P.C. and go fix it!

 

Cheers,

 

Douglas

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Howdy Goob,

 

Its not far off. Thing is the whole subie shifter linkage is really easy to modify so i'm not expecting anything difficult.

 

So we had a bit of a trial fit last week. As usual things were not that simple. After all the measuring I knew that there was very little room to get the engine where I wanted it. I really wanted it behind the x-member but the engine sensors and water thermostat set up prevented this from happening.

 

post-169-0-69358200-1477723660_thumb.jpgpost-169-0-18051700-1477723737_thumb.jpgpost-169-0-62377900-1477723772_thumb.jpg

 

So as you can see its to high and not far enough back.

 

I did a bit more research and pulled the engine back out. It looks as though there are a heap of remote thermostat housings out there so I can delete the standard Vw one. The Vw cooling system is quite complex...overly so...... so I am hoping to simplify it a lot. 

 

The sump on this thing is bloody deep as well. The crankshaft only dips into the sump 12mm. The sump itself is 120mm deep at the front. Si I have notched it 80 mm from the front and 100mm deep. This leaves room for the oil pump and temperature sensors. My son and I slotted the engine back in this afternoon and it fits like a dream now. I still need to get it lined up just right but engine mounts are just around the corner now. Might even get it done tomorrow if its still raining!

 

 

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