04-11-2009, 09:21 AM
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#1
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Registered User
Join Date: Apr 2008
Location: St. Marys, GA
Posts: 178
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Quote:
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Originally Posted by Brad Roberts
I have done something like 12 V8 conversions in 914's. I'm thinking about taking on a Boxster conversion using a Cayenne V8.
What do you think?
You cant hurt my feelings. It would still be Porsche powered (unlike the 914's I have built with SBC's in them)
Thoughts?
B
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I like the fact of using a Porsche engine vice an LS V8 or an Audi engine, but my personal opinion is that is would change the character of the car too much.
Last edited by silver arrow; 04-11-2009 at 09:24 AM.
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04-11-2009, 09:44 AM
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#2
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Registered User
Join Date: Dec 2007
Location: Chicago, Illinois
Posts: 212
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I say go for it, and if youre going to do it.. do it right with the V8 turbo from the Turbo, Turbo S, or the GTS
-Power for the GTS comes from an upgraded 4.8 liter V8 that makes 405 horsepower at 6,500 rpm along with 369 lb-ft at 3,500 rpm, up 20 hp on the S
-This time around, 520 hp wouldn't do, given that the face-lifted regular 2008 Cayenne Turbo saw a power boost from 450 hp to 500 hp. It only took a new intake system and a tweaked and remapped engine management system for the Turbo S to get another 50 hp for a total of 550 out of the new 4.8-liter, direct-injection, twin-turbo V-8. Torque escalates from 516 to an even loftier 553 lb-ft, available between 2250 and 4500 rpm.
The result is phenomenal performance. zero to 60 mph takes a claimed 4.7 seconds, down 0.2 second from the regular Turbo. Top speed increases by 3 mph to 174, making the Cayenne Turbo S the fastest SUV available...
AND IT WEIGHTS 5,600LBS!!!
Imagine that engine (2009 Turbo S) In a Boxster weighing about 3100lbs..... and what do you think the 0-60 times and the top speed will be.... ???
It just makes me want to think about doing this conversion myself if at all possible...  :dance: 
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05-20-2009, 01:58 AM
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#3
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Registered User
Join Date: May 2009
Location: Santa Monica
Posts: 2
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Boxster with SBC
Quote:
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Originally Posted by silver arrow
I like the fact of using a Porsche engine vice an LS V8 or an Audi engine, but my personal opinion is that is would change the character of the car too much.
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Sounds good to me. If you do it, let me know. I'll be your first customer.
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05-20-2009, 06:42 AM
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#4
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Registered User
Join Date: Jun 2004
Location: Des Moines, IA
Posts: 8,083
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Talk is cheap. I say this does not happen.
__________________
Rich Belloff
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05-21-2009, 07:58 PM
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#5
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Registered User
Join Date: Aug 2004
Location: Alta Loma, CA
Posts: 1,334
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Talk is cheap Mockup tub arrives next week. Tranny is here. Just looked at the Audi S4 V8 last week. 3k for 340hp and 7200 RPM and I know it bolts to the Boxster tranny
Sorry.. was spending money on other things in life..
B
__________________
Engine Builds, Transmission Builds, Engine Conversions, Suspension Installs, Suspension Tuning, Driver Coaching, Data Acquisition, Video, SCCA/PCA/POC/NASA/GRAND AM/ALMS.
We have worked with amateur and professional drivers for over 26 years. In house machinist, In house fabrication. Our cars, our parts, our engines, our transmission's run nationwide at events every weekend. We work side by side with industry names developing parts.
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05-21-2009, 08:00 PM
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#6
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Registered User
Join Date: Jun 2004
Location: Des Moines, IA
Posts: 8,083
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Quote:
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Originally Posted by Brad Roberts
Talk is cheap Mockup tub arrives next week. Tranny is here. Just looked at the Audi S4 V8 last week. 3k for 340hp and 7200 RPM and I know it bolts to the Boxster tranny
Sorry.. was spending money on other things in life..
B |
Call us when this is done. If it is done!
__________________
Rich Belloff
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05-21-2009, 08:04 PM
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#7
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Registered User
Join Date: Aug 2004
Location: Alta Loma, CA
Posts: 1,334
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Took forever to find a FREE Boxster tub. Had to wait until one of our BoxsterSpec buddies crunched one at LV during a DE
Met with LAPD yesterday and bought 2 engines from them. One Cayenne VR6 engine for another conversion using a BoxsterS 6 speed and one low mileage 2.5 engine for a racer who popped an engine at CA Speedway last weekend with POC.
They will sell me the next Cayenne V8 they receive for 5k. The other engines were sold to me for 3k each.
B
__________________
Engine Builds, Transmission Builds, Engine Conversions, Suspension Installs, Suspension Tuning, Driver Coaching, Data Acquisition, Video, SCCA/PCA/POC/NASA/GRAND AM/ALMS.
We have worked with amateur and professional drivers for over 26 years. In house machinist, In house fabrication. Our cars, our parts, our engines, our transmission's run nationwide at events every weekend. We work side by side with industry names developing parts.
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05-21-2009, 08:08 PM
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#8
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Registered User
Join Date: Aug 2004
Location: Alta Loma, CA
Posts: 1,334
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I also know the V10 Audi/Lambo engine bolts up to the 6Speed box
B
__________________
Engine Builds, Transmission Builds, Engine Conversions, Suspension Installs, Suspension Tuning, Driver Coaching, Data Acquisition, Video, SCCA/PCA/POC/NASA/GRAND AM/ALMS.
We have worked with amateur and professional drivers for over 26 years. In house machinist, In house fabrication. Our cars, our parts, our engines, our transmission's run nationwide at events every weekend. We work side by side with industry names developing parts.
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