PRH
Well-Known Member
What’s worked reasonably well for me is-
With the caveats that how good the “car” is(which is everything except the engine), is a huge factor………
If the dyno numbers are legit, and you’re racing at tracks that aren’t at high elevations(call it less than about 1000ft), in “reasonable” air conditions……… you should have the performance numbers from the Moroso S/P slider come within about 90% of the STP numbers from the dyno.
In extremely rare situations, with cars that are very efficient, running in great air, the numbers can be within a couple of percent.
In even rarer instances, the car can show numbers higher than the STP dyno numbers(off the top of my head, I can only think of one car where I have fist hand knowledge of the dyno results and the cars performance where this happens, and it happens pretty often with that combo).
The problem of not having reliable dyno data, is you’re guessing on two counts………
1- no known HP figures
2- without the dyno data you can’t really quantify how efficient the car is
With a unique engine combo like the OP has built, you could assume something around 750 STP hp would seem reasonable………. But so is 725, or 775.
That’s a 50hp swing.
With the caveats that how good the “car” is(which is everything except the engine), is a huge factor………
If the dyno numbers are legit, and you’re racing at tracks that aren’t at high elevations(call it less than about 1000ft), in “reasonable” air conditions……… you should have the performance numbers from the Moroso S/P slider come within about 90% of the STP numbers from the dyno.
In extremely rare situations, with cars that are very efficient, running in great air, the numbers can be within a couple of percent.
In even rarer instances, the car can show numbers higher than the STP dyno numbers(off the top of my head, I can only think of one car where I have fist hand knowledge of the dyno results and the cars performance where this happens, and it happens pretty often with that combo).
The problem of not having reliable dyno data, is you’re guessing on two counts………
1- no known HP figures
2- without the dyno data you can’t really quantify how efficient the car is
With a unique engine combo like the OP has built, you could assume something around 750 STP hp would seem reasonable………. But so is 725, or 775.
That’s a 50hp swing.
Last edited: