Boxster Subaru conversion interest?

[Gilles]

Originally Posted by kcpaz

There's really no other place within the chassis to put it and keep the heat away from plastic, rubber or fluid lines.

kcpaz; it looks like a wild and well planned system..!
Are you planning to get some insulation (or heat shield) between the tubes and gearbox to help keeping the heat away?
.

[kcpaz]

Originally Posted by Gilles

kcpaz; it looks like a wild and well planned system..!
Are you planning to get some insulation (or heat shield) between the tubes and gearbox to help keeping the heat away?
.

Yes, and header wrap

[Jake D]

I can't wait to see/hear this thing. Nice knowing that there may be another option for a swap

[Joyrider564]

Very nice swap you are doing! What made you decide on doing the twin wastegate setup? And did you go with the gt30r to try and make more power down low as opposed to say a gt35r? Either way, excellent swap and the fabrication looks awesome.

[kcpaz]

Originally Posted by Joyrider564

Very nice swap you are doing! What made you decide on doing the twin wastegate setup? And did you go with the gt30r to try and make more power down low as opposed to say a gt35r? Either way, excellent swap and the fabrication looks awesome.

There are two wastegates because the turbo has a twin scroll housing. I went with the 30R and the twin scroll design to reduce lag, and because my goal is not to make 450-500hp. The plan is to make a reliable track car, not a drag car.

[fastorange]

Man...those pictures make my mouth water....you have got mad skills my friend....I am watching this thread with much anticipation. Is your eventual intent to put together a "kit" so to speak, so you can sell an engine swap package? The owner would source an engine, and then buy the kit from you with all the needed parts/pieces/instructions to complete the swap? I hope so, I would start looking for an engine right now....thanks for the work you are doing, and keeping us updated, it is greatly appreciated...

[kcpaz]

Originally Posted by fastorange

Man...those pictures make my mouth water....you have got mad skills my friend....I am watching this thread with much anticipation. Is your eventual intent to put together a "kit" so to speak, so you can sell an engine swap package? The owner would source an engine, and then buy the kit from you with all the needed parts/pieces/instructions to complete the swap? I hope so, I would start looking for an engine right now....thanks for the work you are doing, and keeping us updated, it is greatly appreciated...

That's exactly it. The plan is to put together this first car and torture test it out on the race track. If revisions are needed, then I will do so, and then go into production of the parts so people will be able to buy either complete kits, or piece together whatever they want or don't want.

[Jake Raby]

I really like what he has done!!! I still deal with the BS of people ********************ing about advertising.. I guess those people don't have a Television and don't notice that EVERYTHING is an advertisement for something. Welcome to the 21st century.

The Boxster/ Suby conversion makes lots of sense to me... Even though I am no fan of the German car with a Japanses engine, the suby engine is a real powerhouse.

Done right this conversion could be the key for those who want big power and aren't worried about keeping the car Porsche powered.

[BlitzSRM]

Looks like a Mohawk.

I would have put something like a whale tail.

But i guess a roof scoop will be more efficient.

[Mark_T]

or twin scoops with the intakes up beside the hardtop just behind the side window. Could keep the back window that way.

[bpg_austin]

I've been waiting for a kit like this to become available for a couple years now. Subscribing to this thread. Wonderful fabrication work.

[kcpaz]

Originally Posted by BlitzSRM

Looks like a Mohawk.

I would have put something like a whale tail.

But i guess a roof scoop will be more efficient.

There's no way I would do any sort of whale tail on a Boxster. I know the roof scoop won't be the most attractive thing to some people, but IMO, something like a whale tail on a mid-engine car would be even worse. Not only that, but with the factory style hard tops, the aerodynamics just wouldn't work. The Boxster roof lines don't have the gradual sloping line that the 911's have which feeds air directly to the louvers in the whale tails. Instead roof sharply drops off, which will cause the air to be turbulent right behind the rear glass and give poor flow to the intercooler mounted horizontally.

As for the "twin side scoops" idea mentioned. The problem with this is that unlike the Toyota MR2's, the Boxster has the convertible clamshell right behind the seats, and the engine bay is completely different as well.

The whole idea of this roof scoop design was to make it easy to install and quickly remove for the end user. Sure I could have made a complicated Zeintop looking contraption that would be more aesthetically pleasing, but this is intended to be used on race cars where the pieces need to be easily removable for engine and interior access. Not only that, but if the part becomes too complicated, the price may become too high for most people to justify... especially since they will also need to buy a hard top anyway. It's not always about making the perfect part. sometimes you have to factor in compromises for other systems or requirements.

[clickman]

What's happening, kcpaz?

[nimblemotorsports]

This is quite the project! The roofscoop is unique and that is cool, and since its already done probably not much to say but keep going, but I would suggest that you put the scoop UNDER the roof, put an opening in the windsheild, and yes do a Cayman style roofline. It'd look more Porsche, but heck its got a Subaru engine, so maybe you DON'T want it to look like a Porsche.
If it goes really fast, it will become the new trendy look!

Originally Posted by kcpaz

There's no way I would do any sort of whale tail on a Boxster. I know the roof scoop won't be the most attractive thing to some people, but IMO, something like a whale tail on a mid-engine car would be even worse. Not only that, but with the factory style hard tops, the aerodynamics just wouldn't work. The Boxster roof lines don't have the gradual sloping line that the 911's have which feeds air directly to the louvers in the whale tails. Instead roof sharply drops off, which will cause the air to be turbulent right behind the rear glass and give poor flow to the intercooler mounted horizontally.

As for the "twin side scoops" idea mentioned. The problem with this is that unlike the Toyota MR2's, the Boxster has the convertible clamshell right behind the seats, and the engine bay is completely different as well.

The whole idea of this roof scoop design was to make it easy to install and quickly remove for the end user. Sure I could have made a complicated Zeintop looking contraption that would be more aesthetically pleasing, but this is intended to be used on race cars where the pieces need to be easily removable for engine and interior access. Not only that, but if the part becomes too complicated, the price may become too high for most people to justify... especially since they will also need to buy a hard top anyway. It's not always about making the perfect part. sometimes you have to factor in compromises for other systems or requirements.

[VRsyncro]

Originally Posted by Jake Raby

The Boxster/ Suby conversion makes lots of sense to me... Even though I am no fan of the German car with a Japanses engine, the suby engine is a real powerhouse.

Done right this conversion could be the key for those who want big power and aren't worried about keeping the car Porsche powered.

I agree, it's always fun to have options out there! I love my Boxster, and having the potential for both a Suby engine or Corvette LS engine is great!

Heck in my old VW days I still remember one of the coolest swaps I'd ever seen was a Cadillac 32v Northstar V8 shoe horned into an early 90's MKII Golf. Nowadays the diesel TDI engine is finding it's way into many applications, including Jeep YJ's.

Excitement through experimentation leading to application!

[kcpaz]

Quick update...

The plan was to finish the intercooler plumbing before doing the cage to make things easier... but I couldn't help myself. The cage isn't done yet (still have harness bars to add and final welding) but it's pretty close. I'll throw up some better cage pictures once everything is completely finished...

[kcpaz]

I made a custom intercooler for the trunk and started the "duct-work" to direct the hot air out the rear bumper. The last shot shows the bottom of the duct open. This will be closed off to force the air out behind the car rather than randomly under the car. I'm just waiting to pull the engine/tranny to finish everything off. You can see the turbo dumps directly into the intercooler on the driver's side, then shoots off into the engine bay on the passenger side. The plumbing will be VERY short and direct. I was going to use Wiggins clamps, but then reminded myself that this is supposed to be a "budget build" The intercooler core measures 18" x 12" x 4.5" with 2.75" inlet/outlets