[Asbjorn]

Originally Posted by jts1981

Hi all,
I've been reading about this whole 35is vs 35i w/ tune and the I guys always state that with the tune it'll be as fast, (some say faster than) the IS. I was bored and decided to check out the dyno charts of ESS.

But why oh why? Both use the N54 hardware! Please remember that we can never compare charts from different dynos/cars/conditions. We can only compare before and after charts on the same car/dyno/day.

Please also remember that the ESS tune is also available for the 35is. And there is no way they lowered the boost at any RPM. Why would they tune the car to produce less torque and then try to sell that as a performance product?

There are two tunes for the 35i (stage 1 = 350hp and stage 2 = 390hp). For the 35is there is only one ESS tune (stage 1 which gives you +50hp or so. This is the same as stage 2 for 35i). This is because the 35is (without overboost) already produces similar torque as the 35i with ESS stage 1.

Originally Posted by jts1981

35is @ 3000= a bit over 225-230hp, torque 370lb
35i @ 3000=200hp, torque 350lb

35is @ 4000= 315hp, torque 407lb
35i @ 4000=270hp, torque 350lb

35is @ 5000= a bit over 354, torque 370ish lb
35i @ 5000=320ish hp, torque 320ish lb

35is @ 6000= 330ish hp, torque 290ish lb
35i @ 6000=363hp, torque 315ish lb

Again, because boost is increased, there is no way that ESS produces less torque at any RPM. I do not believe above numbers are comparable.

Here is the chart comparing 35is vs ESS on the same car/day/dyno (I assume).

http://www.esstuning.com/product_ima...55766_zoom.jpg

I am not sure if the 35is is running overboost in this chart. Maybe it is not. But there is no way that ESS is turning an 35is into a Honda Civic like you stated. This engine comes with two small turbos.They have very little lag, but even ESS cannot change the fact that they run out of air at higher RPMs.