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Author: Subject:  2443 Twin turbo street bug project, back on track again.
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posted on June 9th, 2009 at 11:56 AM



The attention to detail on this project is amazing... not to mention the documentary/photos... this thread is a credit to you :tu:
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posted on June 19th, 2009 at 12:08 PM



At last guys I finaly have a set of heads, and they are truely awesome! The machining is really as good as it looks. Valve seats are blended to the casting so there is no noticable lip to feel if you run your finger over it. Exhaust flanges are huge too, should make for a good sealing area considering the exhaust back pressure on the engine will be approaching 35PSI.

I discovered that the Australian government doesnt have a free trade agreement with the Swiss too. Import duty and GST was another $718 on top of the purchase price of $3275. So Ouch! Just as well Kevin Rudd gave me some money to help buy these! But they look like they will be up to the task of what I have planned for them.

http://users.on.net/~iswinkels/Hosted/MP230/Kev.gif

I know what I'll be doing this weekend.... :D

http://users.on.net/~iswinkels/Hosted/MP230/DSC01759.JPG

http://users.on.net/~iswinkels/Hosted/MP230/DSC01760.JPG

http://users.on.net/~iswinkels/Hosted/MP230/DSC01761.JPG

http://users.on.net/~iswinkels/Hosted/MP230/DSC01762.JPG
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posted on June 19th, 2009 at 12:30 PM



HOLY CRAP!
HA theres not even any slight more room for those values to be any big, thats insane!




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New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta!
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posted on June 19th, 2009 at 12:40 PM



Sensational dude



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posted on June 19th, 2009 at 12:49 PM



Alright! Some progress coming up.



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posted on June 19th, 2009 at 02:05 PM



those heads are frikken ridiculous!!!:crazy::crazy: beautiful job on the machining too... i couldnt wait till the weekend, id be taking a sickie today:lol::lol:



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posted on June 19th, 2009 at 09:34 PM



Very nice!!!!:cool:
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posted on June 29th, 2009 at 04:52 PM



I THINK SOMETHING JUST MOVED IN MY PANTS:lol::lol:



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posted on June 29th, 2009 at 04:56 PM



Sorry for the lack of progress now the heads are here, it was supposed to be all systems go...

Seems the set of raceware head studs I have are 8mm and not 10mm like I thought I had ordered (nearly 2 years ago). So I didnt get very far at all with it last weekend. Ive since decided to use a set of CB 10mm chromoly studs that I have here, and have so far cut 1/2 of them to size so far. I hope to find time to work on the engine in the evenings this week and get it to a rocker cover to rocker cover stage of assembly.
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posted on July 3rd, 2009 at 08:05 PM



Update at last...

I've made a little progress with the engine this week, although not as much as i'd have liked. I was going to use the CB 10mm chromoly head studs I had spare here but found out some of them were rusty. Ive had them in storage too long. So Ive decided to put the engine together anyway so I can finish the cooling system and start on the header and intake fabrication, and ive ordered some replacement studs.

Here's some pics of the engine. Ive started modifying my 911 style fan shroud too, with a little fiberglass here and there to make it a more snug fit onto the oxy boxer block. Should have more pics over the weekend.

http://users.on.net/~iswinkels/Hosted/Engine/DSC01774.JPG

http://users.on.net/~iswinkels/Hosted/Engine/DSC01775.JPG

Cheers,

Ian
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posted on July 4th, 2009 at 11:53 AM



Project 'blown' budget now dude?? :smilegrin:

Looks the goods, and can't wait to see with shroud etc on.:tu:




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posted on July 4th, 2009 at 09:02 PM



Quote:
Originally posted by reub-revhead
Project 'blown' budget now dude?? :smilegrin:



Looks like Ian's gonna have to sell that skyline of his to finish the Dub:lol:
Cheers
D
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posted on July 6th, 2009 at 06:58 PM



Well here's a few pics of the shroud. Its close to being finished, I just need to spend a little more time wet rubbing it pror to having it 2pac clear coated again.

http://users.on.net/~iswinkels/Hosted/Engine/DSC01776.JPG

Ive also made some templates up to have some new flanges water-jet cut. Im going to do something a little diferent here. The flange will mirror the exhaust port shape and is being cut from 25mm mild steel plate. I will then put the flanges in a lathe and turn down the first 15-17mm of the flange, but taper it so the port expands out from 38mm to 40mm inside diameter. Bends will be tig welded internally and externally to the flanges. The flanges will be match ported as well of course.
http://users.on.net/~iswinkels/Hosted/Engine/DSC01777.JPG

The fan housing is a porsche 911 11 blade type. I'll be sending that and the fan away to get them ceramic coated to make them look nice. Im sick of polishing already.
http://users.on.net/~iswinkels/Hosted/Engine/DSC01778.JPG

And the other side...
http://users.on.net/~iswinkels/Hosted/Engine/DSC01779.JPG

Head studs should arrive this week too, so the heads can come off and the top end of the engine be finally assembled.

Cheers,
Ian
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posted on July 6th, 2009 at 07:03 PM



Quote:
Originally posted by Flintstones
Quote:
Originally posted by reub-revhead
Project 'blown' budget now dude?? :smilegrin:



Looks like Ian's gonna have to sell that skyline of his to finish the Dub:lol:
Cheers
D


Oh yeah, not going broke but I am tightening the belt. I did some mental sums and I still have a god $5k to spend on new engine management and injectors, wiring, intercooler and all the oil plumbing that still remains.

Im planning to buy a house around october-december and saving for that is the main priority.
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posted on July 6th, 2009 at 10:23 PM



i just thought it was called blown budget because of the forced induction. clearly the priority has not changed from building the best.

keep it up man, it is inspirational to watch




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posted on July 9th, 2009 at 07:27 PM



A quick update... No new head studs have arrive just yet but no matter i'll be working on the turbo header this weekend instead. Ive had some flanges waterjet cut and machined them up on the lathe so im ready to begin on the merged collectors on the weekend. That means the engine will be bolted to the gearbox for the first time and the rear apron attached so I can work on turbo placement etc.

Something that is often a right pain in the ass with large headers is the inability to weld a decent size pipe to the flange and stil get a nut on it properly due to externally welded pipe. The only solution is internally welded pipe and that can mean slipping the pipe inside a conventional flat flange. This is OK for most NA engine setups, but thicker piping is needed for turbo applications and this then reduces your inside diameter.

So thats why ive done it this way. The head exhaust ports will be match ported to the flanges and taper out to 40mm ID pipe.

http://users.on.net/~iswinkels/Hosted/Header/DSC01780.JPG

http://users.on.net/~iswinkels/Hosted/Header/DSC01783.JPG

http://users.on.net/~iswinkels/Hosted/Header/DSC01784.JPG

Cheers,
Ian
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posted on July 10th, 2009 at 01:12 AM



I've never seen that solution, very inventive and attractive to boot! I can't help but imagine that this will turn out to be one of the best looking GLers in the world.

Jason




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posted on July 10th, 2009 at 06:32 AM



Quote:
Originally posted by 2443TT


So thats why ive done it this way. The head exhaust ports will be match ported to the flanges and taper out to 40mm ID pipe.



very nice..........but only 40mm ID exhaust ?
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posted on July 10th, 2009 at 07:22 AM



Quote:
Originally posted by hellbugged
Quote:
Originally posted by 2443TT


So thats why ive done it this way. The head exhaust ports will be match ported to the flanges and taper out to 40mm ID pipe.



very nice..........but only 40mm ID exhaust ?


Only for the primaries. When the collectors happen it changes to 50mm ID.
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posted on July 10th, 2009 at 03:15 PM



Crazy, whats the estimated completion date now ?



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posted on July 12th, 2009 at 08:11 PM



Hi Guys,

I'd rather not guess a completion date at this stage. Im just working on it as much as I can now. The propper head studs should arrive this week so the top end of the engine goes together properly next weekend. The header should be finished this week.

Speaking of... here is the results of this weekends activities.

The header has 39mm ID primaries that merge to the 2" secondaries in the middle under the sump. This then goes back and is split evenly with another 2" merge to go to each turbo.
http://users.on.net/~iswinkels/Hosted/Header/DSC01790.JPG

Turbo's are mounted high to keep them away from dirt etc, and it also guarantees no problem with the oil returns to the rocker covers.
http://users.on.net/~iswinkels/Hosted/Header/DSC01791.JPG

From the inside you can see the compressor outlets. They meet in the middle to feed the water-air intercooler, and then a pipe goes back through to a centrally mounted throttle body. Well thats the plan at least.
http://users.on.net/~iswinkels/Hosted/Header/DSC01794.JPG

The turbo's are Greddy T517Z's 8cm turbo's rated at 350hp each. They should be reasonably responsive even if the plan was to just run the turbo's in parrallel. But Im still planning on setting up a sequential bi-turbo system. Which is why the header allows all gas flow to a single turbo when valving is closed.
http://users.on.net/~iswinkels/Hosted/Header/DSC01797.JPG

Hope to finish the front pipes later this week.

Cheers,
Ian
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posted on July 12th, 2009 at 08:15 PM



Awesome work as always dude:yes:



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posted on July 15th, 2009 at 09:31 PM



Update time. The engine is back on the bench as the head studs arrived from LN engineering on monday.

Cutting to length. Had to shorten all studs a 1/4" at the inside and the center two top studs an additional 1/4 at the outside.
http://users.on.net/~iswinkels/Hosted/oxy/DSC01798.JPG

Here is the cylinders and pistons with rings finally assembled and in the engine, sealant under the barrels etc ready for heads.
http://users.on.net/~iswinkels/Hosted/oxy/DSC01799.JPG

Heads on at last. Inner valve springs are removed at the moment, and I still need to remove an outer and check rocker geometry and measure up the pushrod length.
http://users.on.net/~iswinkels/Hosted/oxy/DSC01804.JPG

Sexy head studs! Only tightened to wrist tightness so far. I need to make a tool so I can torque the top center head studs as I cant get a socket on there, and being a double hex nut its going to be an interesting challange.
http://users.on.net/~iswinkels/Hosted/oxy/DSC01805.JPG

Cooling tin with the part that goes around the head removed (as it wouldnt fit the MS230 heads).
http://users.on.net/~iswinkels/Hosted/oxy/DSC01806.JPG

I started shimming up the rockers too, but need to make up some spacers for the outer rockers on the weekend when I get a chance.
http://users.on.net/~iswinkels/Hosted/oxy/DSC01807.JPG

Unfortunatly I cant finish the other side of the engine just yet. As luck goes I have a set of ARP head studs to suit a case that has a deep insert on the number 3 cylinder (longer stud), but thats not any good for my oxy case. Charles at LN engineering has shipped over a replacement stud, so with any luck in another week I can finish the other side of the engine.

Ive decided to alter the turbo placement a little too, so the half finished header is being chopped a little and altered on the weekend.

Cheers,
Ian
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posted on July 16th, 2009 at 01:31 PM



wow! thats coming together nice, can wait to see/hear it in person.... noticed the modplates on the tinwork in the back... did you have any issues getting it done? are modplates easier/cheaper than getting it engineered, or is it the same thing... sorry for the stupid questions, but i dont know anything about the legal side of doing extensive mods. also dont know if u know, but if i were to not run the back seats in a beetle, are there any legalities i would need to comply with?



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posted on July 16th, 2009 at 03:39 PM



Fabtastic and really quite insane!!!
Ingenious solution for the exhaust ports :tu:

That car isn't modified is it??:no:




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posted on July 16th, 2009 at 04:28 PM



Quote:
Originally posted by polak
wow! thats coming together nice, can wait to see/hear it in person.... noticed the modplates on the tinwork in the back... did you have any issues getting it done? are modplates easier/cheaper than getting it engineered, or is it the same thing... sorry for the stupid questions, but i dont know anything about the legal side of doing extensive mods. also dont know if u know, but if i were to not run the back seats in a beetle, are there any legalities i would need to comply with?


With the chassis I just did a lot of planning before starting, got all the critical measurements straight and then talked to an engineer and discussed what I was doing before I started work. After he ok'd my design in principal, I started to put it together and had him inspect it before having the finishing welds done.

Provided you do your homework and present a good case, Im fairly certain most engineers will approve anything within reason. Mod plates are a QLD thing, and yes you do need a plate for altered seating capacity too (ie no back seats).

Cheers,
Ian
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posted on July 16th, 2009 at 05:22 PM



thanks for that Ian, i guess im going to have to look into the nsw regs as i dare say they may be different... cheers adam



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posted on July 16th, 2009 at 09:31 PM



WOW,Really impressive Ian
it's a shame that you'll have to hide so much of it with the cooling tins, shroud etc
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posted on July 18th, 2009 at 10:52 PM



All I can say is 'wow'.

:!:




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posted on July 25th, 2009 at 03:59 PM



Hi everyone,

That last head stud arrived last week so Ive been working on the engine for most of the last 3 days and have finally go it very close to finished now.

Headstuds torqued, rockers aligned, lash caps and pusrod tubes installed.

http://users.on.net/~iswinkels/Hosted/oxy/DSC01823.JPG

http://users.on.net/~iswinkels/Hosted/oxy/DSC01824.JPG

Here it is... completed long block.

http://users.on.net/~iswinkels/Hosted/oxy/DSC01825.JPG

Distributor drive plug installed, fuel pump block off/spacer plate made.

http://users.on.net/~iswinkels/Hosted/oxy/DSC01827.JPG

Carbon fibre fan shroud clear coated in 2pac standox clear

http://users.on.net/~iswinkels/Hosted/oxy/DSC01829.JPG

Dry sump pump mound bolted on.

http://users.on.net/~iswinkels/Hosted/oxy/DSC01833.JPG

http://users.on.net/~iswinkels/Hosted/oxy/DSC01834.JPG

And the RPM 4 stage dry sump pump loose mounted.

http://users.on.net/~iswinkels/Hosted/oxy/DSC01835.JPG

http://users.on.net/~iswinkels/Hosted/oxy/DSC01836.JPG

I decided to not be a girl and spent a few hours on the polisher today too and re-polished the 911 alternator fan housing and alternator stand. Dry sump pump drive belt is now installed too.

http://users.on.net/~iswinkels/Hosted/oxy/DSC01842.JPG

http://users.on.net/~iswinkels/Hosted/oxy/DSC01843.JPG

http://users.on.net/~iswinkels/Hosted/oxy/DSC01844.JPG

Im getting the remaining tinware sand blasted and will be painting it with flat black 2pak next week.
Cheers,
Ian
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