I Dyno'd my car because my car club rented a mobile dyno and there was an open spot. The club didn't believe that my car was as anemic as it was. It only cost me $25 which is at least 1/4 the cost of a typical dyno session. I was interested to see the effect that 30 years had on the car. I'll release the results as well as a video of the dyno pull's tomorrow. Post up your predictions!
Not meaning to hijack the thread,I apologize,but I would like to comment on an observation made by pmbrunelle..... I constantly hear from people that the 2.8 with 4 speed should be short shifted and thought they were right....my engine would cut out anytime I got near red line on the tach. Recently,I had a distributor issue that forced me to replace it with a new distributor with the updated electronics....it was much cheaper than rebuilding the old distributor. With the new distributor....this engine will pull WELL INTO the red line and it will keep pulling until I decide to shift. Why everyone says that the 2.8 doesn't breath is beyond me... I know there are various things that can be done to boost the engine but it was never intended to be a high output engine anyways.......they run pretty good in stock form really.
Distributors have improved since the stock design. There's actually a new[er] design. So yes, with a proper coil and newer distributor, stock Fieros can make better power over 5000 rpm..
Distributors have improved since the stock design. There's actually a new[er] design. So yes, with a proper coil and newer distributor, stock Fieros can make better power over 5000 rpm..
I don't see this, an ignition system either works, or it doesn't.
If the engine is not misfiring, then the ignition system is 100% doing its job, right?
Are you asserting that the stock HEI misfired above 5000 RPM?
Also the stock A/F ratio drops to 11:1 in the time it reaches the post-5000rpm range. A tune on even a stock motor would net more power from 3000rpm and up...
Thank you liv4God! I'm happy with how the car has turned out since I bought it last may in near stock form.
To shed some light on the distributor subject, I do have a newer style distributor(the one mentioned in the thread above). I also have wires, plugs, dist cap, rotor, and MSD coil with less than ~5,000 miles on them. That being said, I do not think that they provide any performance benefits. I do however think that they provide reliability benefits.
lou_dias, I am interested in tuning the car above the ~3,000 RPM range. Has there been proven results from a tune? I know there are the prom chips from Hypertech but I've heard that they do not actually increase power.
I've considered giving the car more timing and running it on premium but haven't had the time to fiddle with it.
PS- The other people that dyno'd that day complained of lower than average dyno results. The dyno did not compensate for the elevation. I'm still going to stick with 113hp and 140tq when I mention the numbers that the car made because that is all that I have proof of. A supercharged BMW registered 480hp on the day of but when elevation corrected, it was claimed to make 514hp.
One thing to remember with Super or turbo charged engines is they can, depending on sensor and computer capability, compensate for altitude...Even mechanical setups can compensate.
