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Old 01-06-2010, 02:12 PM   #1
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LS1 V8 in a boxster

So I know this has come up before. However, recently there has been some good forward motion on this and I was wondering if anyone has any more insight than what i can find on GOOGLE. So i have tracked down some threads but they drop off. I know brad roberts had hooked his up to his sixspeed but was working on the mounting of the engine. But shortly after the thread ends.


here are some pics of the build on this thread.
boxster spec thread on ls1 convert


this is a real interest since I have an older box and is a great contigency plan for IMS failure. or any other

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Old 01-06-2010, 02:29 PM   #2
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I also had been following Brad Robert's V8 conversion thread and was wondering what had happened. It's too bad the Cayenne/Audi engines he originally wanted to fit didn't work out.

This is the thread I had been reading: http://www.914club.com/bbs2/index.php?showtopic=69069

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Old 01-06-2010, 03:14 PM   #3
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Brad lives nearby and I have seen the project in various stages. It's a long slow process and the devil is in the details.
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Old 01-06-2010, 04:24 PM   #4
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I cant wait for this to be completed. It would be a real supercar essentially. Not only that for a fraction of what you would pay for a similar Porsche motor putting down the same power. (disregarding longterm upkeep even)


wonder how much the kit would cost. I wish I could help with it all seems groundbreaking.
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Old 01-06-2010, 05:09 PM   #5
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I'd drop a LS1 in my car when the motor blows if someone made a kit for it.

Brad, are you listening??????
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Old 01-06-2010, 06:24 PM   #6
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I want to know if the new 4 cyl turbo that might come out will fit our tranny and mounts. If so I will drop that in and figure out the wiring later.
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Old 01-06-2010, 06:25 PM   #7
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I was looking through the other thread from a while ago about this and there were alot of haters. it seems maybe some people now see the merit?
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Old 01-08-2010, 08:21 PM   #8
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hmmm very nice.

the specs from turn key
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Old 01-08-2010, 09:28 PM   #9
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An LS1 in a Boxster with a Procharger would be even MORE fun!
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Old 01-09-2010, 08:56 AM   #10
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Funny sideline about the GM LS series...

Turns out it seems that GM ripped off Ford's FE series motor design. A SBF distributor drops right in when an LS is setup without electronic ignition. The head bolt pattern is a mirror image of Ford's, so much that an aftermarket GM block manufacturer made his block so that either Ford or GM heads would bolt up, and you can even run GM on one side and Ford on the other to line the ports up. The deck height is the same as an FE at 9.2 inches.

I know it's not Porsche, but still interesting if you're into cars.
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Old 01-09-2010, 09:06 AM   #11
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it may not be porsche but we are talking GM motors in a porsche and that is some interesting stuff right there. now the FE series that wouldnt have anything to do with the element letters for Iron would it?
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Old 01-09-2010, 02:00 PM   #12
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Quote:
Originally Posted by Lobo1186
it may not be porsche but we are talking GM motors in a porsche and that is some interesting stuff right there. now the FE series that wouldnt have anything to do with the element letters for Iron would it?
I had to go look that up... it's actually short for "Ford - Edsel" according to the sources I found. The FE series included goodies like the 390, 427 side-oiler and cammer, and the 428 Super Cobra Jet engines. All from back in the day when tire-shredding torque was king.

A Porsche boxer motor at full tilt makes some sweet sounds. A well-built M-code 351 Cleveland @ 7500 rpm doesn't sound bad either! Can you say "Pantera"?
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Old 01-09-2010, 09:15 AM   #13
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Quote:
Originally Posted by sd_boxster
An LS1 in a Boxster with a Procharger would be even MORE fun!

it would. but if this build does come reality i would want as much N/A power as possible. I can picture my wife driving it and some motorhead being like nice boxster. and she would be like ya it is fast it has a V8... and the guy thinking he knows everything and that my wife doesnt know anything about cars would think she is crazy... lol


but it would be funny to see (if you removed the canvas top and did some modifications) put a blower on there and figure out some way for alot of air to reach it (because of the windshied)

haha it would be rediculous having a blower right behind your head sticking out a foot from the boxster. lol
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Old 01-09-2010, 10:32 AM   #14
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There was a guy that used to run around Carlsbad in a Red Acura NSX. He had a blower on the motor and the motor was exposed just behind his head. It looked really cool but man, that must have been annoying.
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Old 01-09-2010, 12:05 PM   #15
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lol i know right. It would be approaching hotrod status at that point... ive never heard of a Boxster hot rod but hey being unique is far from a bad thing.
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Old 03-20-2010, 12:11 AM   #16
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boxster spec thread

so another development. brad wants to have a running v8 boxster by june 1st.

i can hardly wait
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Old 06-24-2010, 11:04 AM   #17
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Here are some pics not sure if this is Brads work?

Pics
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Old 06-24-2010, 11:12 AM   #18
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Looks like Brad shut down that forum to pursue other interests.

I really do want to know who could do an LS1 conversion on my car though. When the motor blows I will surely do this instead of spending far more on a Porsche motor that will give me far less HP.

My 97's not worth much anyway, so why not shoehorn a GM motor in it? I'd have a wicked fast boxster that would be amazing on the street and the track.
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Old 06-25-2010, 11:23 AM   #19
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Quote:
Originally Posted by RandallNeighbour
Looks like Brad shut down that forum to pursue other interests.

I really do want to know who could do an LS1 conversion on my car though. When the motor blows I will surely do this instead of spending far more on a Porsche motor that will give me far less HP.

My 97's not worth much anyway, so why not shoehorn a GM motor in it? I'd have a wicked fast boxster that would be amazing on the street and the track.
I agree with everything you just said, when this engine goes, I will be sourcing someone who can do this...
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Old 12-24-2011, 03:51 AM   #20
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It may not fit in the stock position, but two guys on this forum have already done it.
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