Found this a bit interesting. I'm looking to be fitting my crossram intake & twin 4bbl's to the car in the next few months & was wondering what sort of performance gains I'd get with it fitted. A good friend of mine has an Engine Analyser computer programme that can accurately work out any engine's HP & Torque figures. Obviously it's only as accurate as the information put into it, but with this it wasn't that I wanted to get huge readings but a conservatively accurate idea of where the car was going to be performance wise. Having read about this package on the 'net, most people say that it's accurate to within + or - 2 %.
This is as the car stands now with a single 4bbl, giving 501hp with 516 lb's Tq:-
And the graph:-
Here's the readout with the cross ram on, giving 563 hp & 549 lb's Tq :-
And the graph:-
This is with a small 175 hp shot of nitrous giving 740 hp & 752 lb's Tq
And the graph:-
Makes for intersting reading to see where the performance comes in. As I say, I'm not looking for ultimate readings here, which can be obtained by "fudging" the information input, I'm looking for realtime accuracy as regards the data input. Obviously, the only way to find out what the car does in real terms is to put it on a dyno, but even then the numbers can be manipulated. At the end of the day, the car does what it does & as I'm happy with the way it performs.
Interstingly, one of the American magazines built an engine very similar to mine a few years ago, though mine does have a few more improvements over the one in the article. That engine produced 525 lb-ft Tq and 490 hp on the dyno with a single 4bbl, so I don't think our figures are that far away from the engines true potential.
Assuming total traction is achieved the car, with 501hp as it stands, the car could be capable of turning the 1/4 in 11.45 seconds. With the crossram on could run as quick as 11.01 seconds. Turn on the small nitrous & it could run 10.05's. Obviously these figures are all hypothetical assuming total traction, which I doubt my car could achieve even with slicks on, plus the car's no where near set up for drag racing, but it does make interesting reading all the same.
In fairness I'm not changing anything to make the car quicker on the strip, it is what it is & has been set up to handle rather than to only go quickly in a straight line. Plus I'm not gonna be fitting nitrous to it either, though my mate does have a couple of kits lurking in his garage
cheers....Nige