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> Which engine? Subaru 2.5 STI/Subaru 3.0/Honda j35/ Honda k24, Building a weekend/track car, help me pick the engine
rupert14
post Nov 27 2023, 07:15 PM
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I am trying to decide which engine to swap into my 914. In the past I put a honda J35 in a baja bug and it would roast 33" tires all day long. It was a great engine for a baja bug. I have a local shop that is pushing me toward a subaru 2.5L STI turbo motor. I have also read about very happy owners of 3.0 flat six suby engines in the 914. A buddy of mine that runs NASA has a k24 in his car that puts almost 250hp to the ground with just cams. The good part about the k24 is that it is light.

I plan to just use it as a fun weekend car and once a month or so on track here in AZ for HPDE4. I am currently running a 2001 BMW 330ci at the track but I also have a speck e30 and a few street e30's. I want to be around 300hp (stock J35 is 300hp/300tq) and I am ok swapping the trans if necessary. My trans was recently gone through at a Mr. Evil gathering and is a strong side shift.

I realize many of you have more experience than me with these engines so what is your vote? I will be adding a wide body and the fattest tires I can stuff in there.

1. Subaru 2.5 turbo STI motor
2. Subaru EZ30R 3.0 six
3. Honda j35 V6
4. Honda k24 inline 4
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fasthonda
post Dec 7 2023, 01:48 PM
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The Turbo charged EJ Subaru powered car currently on BringaTrailer doesn't appear to be very fast from watching the video. I know it's hard to tell it a video, buts that's my impression. and that Subaru boxer engine noise sounds awful to me. No thanks.

https://bringatrailer.com/listing/1973-porsche-914-118-2/
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Chris914n6
post Dec 7 2023, 02:25 PM
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QUOTE(fasthonda @ Dec 7 2023, 11:48 AM) *

The Turbo charged EJ Subaru powered car currently on BringaTrailer doesn't appear to be very fast from watching the video. I know it's hard to tell it a video, buts that's my impression. and that Subaru boxer engine noise sounds awful to me. No thanks.

https://bringatrailer.com/listing/1973-porsche-914-118-2/

Poor choice in muffler. Ricer (IMG:style_emoticons/default/stromberg.gif)

And you're right, it is slow, specially for a turbo. Too much rear tire?
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fasthonda
post Dec 16 2023, 11:43 AM
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https://bringatrailer.com/listing/1973-porsche-914-118-2/
[/quote]
Poor choice in muffler. Ricer (IMG:style_emoticons/default/stromberg.gif)

And you're right, it is slow, specially for a turbo. Too much rear tire?
[/quote]


Sold for $44k not including fees. Slow, raspy loud and w/ 916 bumpers molded into the sheet metal. It does have a nice interior. Wow.
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Posts in this topic
rupert14   Which engine? Subaru 2.5 STI/Subaru 3.0/Honda j35/ Honda k24   Nov 27 2023, 07:15 PM
bahnzai   You should talk Mike, @fasthonda He put a f20c i...   Nov 27 2023, 08:15 PM
Chris914n6   Things to consider... The stock 914 trans is max...   Nov 27 2023, 09:53 PM
rupert14   So it sounds like the best bet for occasional trac...   Dec 1 2023, 05:20 PM
tazz9924   If you go subaru make sure you get your oil right;...   Dec 2 2023, 08:44 AM
76-914   If you go subaru make sure you get your oil right...   Dec 2 2023, 09:55 AM
BENBRO02   The K24 is a fantastic engine. I just sold my 2005...   Dec 2 2023, 08:55 AM
emerygt350   for the money spent I wonder how close a pmb/raby ...   Dec 2 2023, 09:11 AM
mlindner   I'd go either Boxster or a air cooled 3 or 3.2...   Dec 2 2023, 09:28 AM
fasthonda   I vote K24. Perfect motor for sale on BringaTraile...   Dec 5 2023, 12:06 PM
ClayPerrine   A Boxster engine won't fit in a 914 chassis. ...   Dec 6 2023, 11:21 AM
Chris914n6   A Boxster engine won't fit in a 914 chassis. ...   Dec 6 2023, 12:17 PM
technicalninja   I vote K24 as well. That motor is possibly the bes...   Dec 6 2023, 12:33 PM
nimblemotorsports   Most of the time the right answer is to use the en...   Dec 6 2023, 08:51 PM
fasthonda   The Turbo charged EJ Subaru powered car currently ...   Dec 7 2023, 01:48 PM
Chris914n6   The Turbo charged EJ Subaru powered car currently...   Dec 7 2023, 02:25 PM
fasthonda   https://bringatrailer.com/listing/1973-porsche-914...   Dec 16 2023, 11:43 AM


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