while i agree with your point Windsor, how much whp are we REALLY talking about? not alot IMO. i have seen street tuned cars come in here and make almost the same a/f ratios on the dynojet.

My point is, ESPECIALLY for F/I cars, its MUCH harder to tune a car on the street and do FULL 4th gear pulls where you can be at upwards of 120mph on the street. its just not safe and practical IMO. on the dyno you get the advantage of tuning all columns and rpm bands and there is no consequence from johnny law or other motorists.

Also, street tuned cars you cant tell where to put vtec for hondas (NOT ACCURATELY) , you cant play with cam gears, you cant see whp or Tq gains or losses. its all "flying blind". all your doing is setting the car to a certain a/f ratio taht you want. that is not TUNING IMO, thats a BASEMAP, a very spcific base map, but a basemap nonetheless.

how do you know if your car is making power whether its rich or lean. lets say you pick 13.5:1 for your na car for your target A/F ratio. now, you cannot go lean or rich and see if the motor likes it and see if it made a difference on the street. same with boosted cars.

I have seen people try and "street" tune and it usually ends up with very dissapointed customers and tuners have to deal with dangerous situations of high mph and traffic congested areas. Think about this, an average street tune is $75/hr. well we cahrge $100/hr on the dyno. i think its worth the extra $25/hr IMO.

in closing, conrad=wrong
just kidding buddy. i see your point, and maybe in much higher whp applications and heavier chassis's it does make a difference.