Subaru powered Boxster "Street Version"

[jaykay]

What wheels and tire size do you think you will need to keep it hooked up?

Can you shoot flame / turbo flash with it

How is the sound?

[burnrbr]

Originally Posted by jaykay

What wheels and tire size do you think you will need to keep it hooked up?

Can you shoot flame / turbo flash with it

How is the sound?

I'm currently running a set of Kumho Ecsta ASX All Seasons on 265/35/18s in the rear. I think I need to upgrade to an Extreme Performance Summer tire to get some grip back.

Haha, no flames that I know of at this time

As for how it sounds, it's definitely different from the M96 flat 6. Not as smooth. It's got lots of the typical turbo bov/compressor surge sounds. It does sound pretty mean, especially when going through a freeway underpass or through a tunnel.

Here's a video clip that Kent took while tuning the car earlier this year.

Subaru powered Boxster street car tuning - YouTube

From the inside, it sounds pretty similar to his setup, just a little subdued due to me running a full interior. You can hear it in one of his race videos too. The engine in the video is now in his street car.

PCW Subaru Powered Boxster at FIR Main march 17 2013 (Race Qualify) - YouTube

[Porsche9]

That's a pretty awesome setup. Sounds like your running in excess of 981 GTS horsepower with a lot more torque. Power to weight ratio has got to be at least the same or better than a 996T. That must be a blast. I am guessing this is a less expensive route then building a 3.6/3.8.

With the intake that low I am guessing driving the car in any rain (especially the monsoon season we had this year) could be a problem.

How do you get the car to pass smog?

Love to see/hear the car. We are almost neighbors.

[burnrbr]

Originally Posted by Porsche9

That's a pretty awesome setup. Sounds like your running in excess of 981 GTS horsepower with a lot more torque. Power to weight ratio has got to be at least the same or better than a 996T. That must be a blast. I am guessing this is a less expensive route then building a 3.6/3.8.

Peak power seems to be closer to the 996TT. The difference is power delivery. I've been in a 996TT before and it produces quite a bit more low end grunt under 2500rpm and it builds all the way to peak power like a sledge hammer. My car doesn't really do much under 3000 rpm but once the turbo spools, that's when the magic happens. What I like about the car is its Jekyll and Hyde nature. I can take this on the freeway and if I keep it under 3K, I can get almost 26-27mpg. It is after all a 2.5l 4 cylinder motor. If I want some fun, I drop a gear and go into < 10mpg territory I would be curious as to how the new generation Turbo-4s will drive compared to mine. As far as costs go, I don't have any data on how much it takes to build a 3.6/3.8 but with Porsche prices, I would not be surprised if mine was a bit cheaper.

Originally Posted by Porsche9

With the intake that low I am guessing driving the car in any rain (especially the monsoon season we had this year) could be a problem.

I have driven the car in light rain and it wasn't an issue. The filter is blocked by the rear fender liner. Now if its anything like the 2 big flooding rainstorms we had this past summer, I'm taking my truck. I plan for the car to be a fair weather toy so I monitor the weather patterns before venturing out.

Originally Posted by Porsche9

How do you get the car to pass smog?

The car is actually smog exempt. I insured the car under the Hagerty Classic Car program due to its unique pedigree. In AZ, once a classic car policy is written, DMV gets notified and puts an exemption on the car. I then went online and registered the car. No fuss. The program also offers "Guaranteed Value coverage" so there is no depreciation in the case of total loss. Now with that said, Kent was able to get his car to pass smog. The OBD2 port in the car is actually tied into the Subaru's ECU. If there is no check engine light, you're good. So if I ever wanted to go to regular insurance, I'm good too.

Originally Posted by Porsche9

Love to see/hear the car. We are almost neighbors.

Sure thing! I plan on visiting Cars and Coffee (Gainey Village, Scottsdale) one of these days. Maybe we can plan on meeting there one Saturday morning? I think there's one this coming Sat.

[Porsche9]

Thanks burnrbr. At 26 to 27 mpg that's better then my 3.2. If the car can be registered and insured allowing for daily use I'm interested.

Next time you head up to Cars and Coffee let me know. When I'm ready to upgrade from my 3.2 Precision Chassis and Flat 6 Innovations will be on my list.

[burnrbr]

Porsche9, You can't go wrong with either of those 2 guys! I'll let you know when I do make it up to C&C.

JayKay, I did not do a before dyno with my old 2.5l M96 so won't be able to do a comparison. Honestly I'm not sure how much was lost in the bottom end, if any. Best way is to do a dyno day at the same dyno with another Boxster owner and compare the 2 under 3000 rpm

[BoxsterLS376]

Originally Posted by burnrbr

As far as costs go, I don't have any data on how much it takes to build a 3.6/3.8 but with Porsche prices, I would not be surprised if mine was a bit cheaper.

sooo anyone care to share a number on this project? How much do you have in this car with paint and bodywork?

[Dlirium]

Originally Posted by BoxsterLS376

sooo anyone care to share a number on this project? How much do you have in this car with paint and bodywork?

How can you put a price on the extra ~150hp with a V8 :-)

[jaykay]

Originally Posted by burnrbr

I'm currently running a set of Kumho Ecsta ASX All Seasons on 265/35/18s in the rear. I think I need to upgrade to an Extreme Performance Summer tire to get some grip back.

Haha, no flames that I know of at this time

As for how it sounds, it's definitely different from the M96 flat 6. Not as smooth. It's got lots of the typical turbo bov/compressor surge sounds. It does sound pretty mean, especially when going through a freeway underpass or through a tunnel.

Here's a video clip that Kent took while tuning the car earlier this year.

Subaru powered Boxster street car tuning - YouTube

From the inside, it sounds pretty similar to his setup, just a little subdued due to me running a full interior. You can hear it in one of his race videos too. The engine in the video is now in his street car.

PCW Subaru Powered Boxster at FIR Main march 17 2013 (Race Qualify) - YouTube

Nice .....can you contrast and compare torque curves? Do you feel there is a lot lost on the bottom end?