“Increasing engine RPM will somehow lead to higher HP. Most re-map (any kind) will have some sort of effect to the performance of the engine, but without a dyno test, its very hard to tell what the re-map has done.”
“Some re-map merely shifts the powerband, some increase peak power at the "extra" RPM range. I have seen many re-maps (on other engines, 1.6-2.0L) that increase some 5-8 HP, at >7,000RPM or even up to 8,000. Some increase HP at different RPM but peak HP of the engine remains unchanged. And some just shifted/increase the peak torque to a lower RPM, therefore improve driveability of the car.”
- More or less my case…remap give me little more HP across all revs…and with full exhaust system I have more torque at low rpm and power peak at high revs…
“Another dyno observation I have made is that by changing to a set of new spark plugs will give you approx 5hp gain (over used spark plugs used for 15-20,000km) on most Honda VTEC engines.”
- I think in the Alfa TS engines…it doesn’t make BIG differences to change to other kind of sparks…maybe on a very tuned engine…
““IMHO, anything that claimed to gain 5hp and cost more that a set of spark plugs is a complete waste of time & money. “
- I agree…
If you want to achieve substantial power/torque increment, you need more than re-map, e.g. higher fuel pressure, bigger injector, higher flow fuel pump, improve exhaust header tuning, optimize cam profile/timing, etc.
- Remap, exhaust, cam timing, etc…done…the rest maybe soon…
“2 main ingredient - Fuel/Air mass flow and Mean Effective Pressure of the power stroke directly impact the performance of the engine.”
Bottom line is that you need to have dyno test result to verify the results.
- That’s why I want to compare with other TS engines…I’ve created this post…but I have no answer!
http://www.alfaowner.com/Forum/showthread.php?t=23668 (147 Dyno test)