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Old School 924 2.0 Engine

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Old 04-10-2016, 10:55 PM
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michaelmount123
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Default Old School 924 2.0 Engine

Just finishing a 2L 924 engine destined for a Bonneville Land Speed Record attempt in a 924. Although this engine is far outclassed by 4V technology, it can still hold its own in a race environment. My experience is that it's quite reliable to 8000rpm.
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Old 04-11-2016, 12:10 PM
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V2Rocket
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Sweet!
Would love to see the aero work on the 924.
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Old 05-15-2016, 03:57 PM
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More details, please.

I build a sweet NA that pulls hard to 7000rpm from as low as 2500. The cam is a 251 deg @ 0.001" with 14mm lift. Tried a David Wizard terminatr box after the tuned headers. Knifeegded crank and scraper. Forged rods and pistons. Still with stock CIS, guessing +150hp.
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Old 05-19-2016, 03:06 PM
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FRporscheman
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Cool, I've always liked the 924 engine, no BSs, closed deck, iron block, maybe it's just a case of the grass being greener.

Looks pretty trick! Details, please!
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Old 08-28-2017, 11:18 AM
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michaelmount123
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Success! For those that follow Bonneville Speed Week, the 924 powered with this engine was awarded a new Bonneville land speed record in C/PRO a few weeks ago. 145.632 mph average at high altitude and high heat, stock body, no aero.
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Old 08-28-2017, 03:05 PM
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PF
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Impressive performance!

Whould an engine like that be suitable for a street legal track car? Should be seriously fun in a really lightweight 924 chassis.

/Peder
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Old 09-02-2017, 03:54 PM
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michaelmount123
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Originally Posted by PF View Post
Impressive performance!

Whould an engine like that be suitable for a street legal track car? Should be seriously fun in a really lightweight 924 chassis.

/Peder
Suitable? Not for the street given the high compression, radical camshaft, solid lifters and such. Although it's proven to be durable (built a few 924 road race winners in the past), I'd think you could do a 944 engine for the same $ and be far ahead.

This 924 engine was prepared for a 2L class, but a de-stroked 4V 944 engine would run rings around it.
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Old 09-03-2017, 03:44 PM
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Ok thanks for info.

Kinda like the idea of a lightweight NA 924 for the street and track. It is just so sleek and narrow in a way the 944 can never be. Both have its merits.

Thanks for sharing this special achievement.

//PF
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