Well I just spent 6 hours in a very hot workshop getting 2 dynos.......one before Unichip piggyback and one after it was fitted.
To refresh everyones memories I have basically the same setup as Dave Adam's well known cab, except I don't have an extrude honed intake manifold, but do have a forged Cosworth crank, Alpina chip & no cat....pretty much everything else is the same. Some of the list includes.........Schrick 272/272 cam, M30 AFM, big bore TB, larger injectors, headers, RD exhaust, Alpina B3 2.7L chip.
The car as tested was in 90F weather but with a big fan blowing into the front of the car......and with 16" RD rims and 225/40-16 tires (rim & tire size seem to have a large impact).
The before results were not satisfactory and I will be looking into the cam setting & a few other spots (any ideas welcomed), but this dyno was really to see how much the dyno tuned Unichip piggyback could maximize the mods. I'm quite happy with the gains from the Unichip, but much work needs to be done to figure out the cause of such low numbers before the piggyback was fitted & tuned.
Details of the Unichip piggyback can be found at http://www.dastek.co.za/
EDIT: Just added the foot-pounds calculation to the RWTQ numbers since they were in Newton Meters.
RWHP.......Run 1 was before & Run 2 was after
RWTQ......Run 1 was before & Run 2 was after
To refresh everyones memories I have basically the same setup as Dave Adam's well known cab, except I don't have an extrude honed intake manifold, but do have a forged Cosworth crank, Alpina chip & no cat....pretty much everything else is the same. Some of the list includes.........Schrick 272/272 cam, M30 AFM, big bore TB, larger injectors, headers, RD exhaust, Alpina B3 2.7L chip.
The car as tested was in 90F weather but with a big fan blowing into the front of the car......and with 16" RD rims and 225/40-16 tires (rim & tire size seem to have a large impact).
The before results were not satisfactory and I will be looking into the cam setting & a few other spots (any ideas welcomed), but this dyno was really to see how much the dyno tuned Unichip piggyback could maximize the mods. I'm quite happy with the gains from the Unichip, but much work needs to be done to figure out the cause of such low numbers before the piggyback was fitted & tuned.
Details of the Unichip piggyback can be found at http://www.dastek.co.za/
EDIT: Just added the foot-pounds calculation to the RWTQ numbers since they were in Newton Meters.
RWHP.......Run 1 was before & Run 2 was after
RWTQ......Run 1 was before & Run 2 was after
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