CDI+ on the dyno

[classicretrofit]

Jonny says:

Been on the dyno with a couple of SC's. The dyno is a Maha and is operated by CCK Historic in the UK.

First up, we have a lovely completely stock 204HP Euro 1982SC with 67000 miles on the clock.



The car put out a very respectable 197 BHP (corrected). The dyno runs are totally repeatable, give or take a small percentage. We ran the stock Bosch ignition which is the thin trace, then our unit which is the thick trace. We made no ignition timing adjustments to our unit at all.

The results were surprising. Above 2400 RPM the traces are almost identical. Below this, however, our CDI+ shows a noticeable increase in torque starting 400 RPM earlier at 2000 RPM. This may go some way to explaining why our units make the cars feel more 'driveable' and quicker on the shift down overtake:

Next up was my similar spec SC but with 964 cams, SSIs, sports exhaust and a custom ignition map in our CDI+ unit.



On the road, my car is noticeably quicker in 0 to 80mph sprint than stock. The interesting thing to note is that the headline BHP is still ~200HP but look at the torque when compared to standard: