Last week The car was on Dyno for the first time in its 30 years of life!
Never say never...


The verdict is 340 hp, 40 Kg/m at 6000rpm


I'm very happy for the result.


The engine is the original M104980, no reducing in compression ratio, original CIS controlled by Frankencis System, Microsquirt for the management.
Original is also the exhaust system and 722.5 tranny.
With Dyno operator we have notice that the limit of Cis has been reached.
At full open throttle AFR don't go down 13.5.
Up to 0,5 bar AFR stay around 11,5/12 without problems.
Anyway I need some more fuel flow, at the moment I don't have fuel pressure sensor but I'm planning to mount it shortly in such a way as to understand what happens in the fuel plant.
On my Rotrex C30/94 is mounted a 90 mm pulley with wich I've 0,75 bar of boost, I've also a 95mm that I could use until I find a solution for fuel delivery.
The Frankencis guys told me to try with a V8 fuel distributor...

I use NGK BCPR6ES but I suppose that more colder sparkplugs would be better.

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Mercedes 300 CE 24v 199 black
Rotrex C30/94 SC

FrankenCis fuel contol
stock ignition system controlled by Microsquirt

Dualfuel Gas/Lpg
722.5 transmission

More than 350hp