Kelimutu

...stock IC stock injectors with FD-pump and S-AFC - ran fine up until stock TID broke, i am now building a new before i go back to dyno, but with only 6 psi I had 212 bhp, that is LOWER boost than stock (ported wg and turned down Knightsports boostcontroller) so i have good hope for much more, even with stock IC - but that will be the limit, since the intaketemp rose very quickly at 6000 rpm...... several bags of ice och the IC helped some, but a frontmount is on the wishlist.... no budget for the moment though!

The idea is to find out how much an almost stock S5 can ran safely, will kepp you posted!

jacobcartmill

iTrader: (6)

i think you can run about 9 lbs with just a fuel pump on the stock injectors/IC without getting too lean if you have full intake/exhaust

RETed

Ice on the IC is not what I call a realistic dyno run.


-Ted

jacobcartmill

iTrader: (6)

it would be more impressive to see some good numbers from a heatsoaked stock TMIC

gsracer

I think at the very least spraying down the top mount with ice water before a run will result in more accurate real world horsepower. Despite how poor airflow the stock FC intercooler might experience, there is no way an fan can replicate the real amount of air flowing through the scoop at 70mph.

Kelimutu

The fans on this dynometer is not very good, so ice is a really good thing, for example, when the **** on the boostcontroller was set at 0.4 bar it was 0.6 in the street - the cold air in real driving is MUCH cooler than any fan!!!

So, Ted i think it is moore like real air, btw the run was not made to get the most out of the car pushed to the limits but to find out if stock injectors still works with 0.6 bar - which they seamed to do. Remember we have 98 octane here i Sweden which is a huge difference to the gas you have to use - the higher energylevel is much better to prevent the engine to knock.

Again, the first weak link in my setup is the stock IC. Next time i will try to have an intaketemp sensor mounted as well.

gsracer

What gas rating system does Sweden use?

Kelimutu

Same rating system, but we have 98 octane premium, Japan 101 and is i recall the best in US 93.... I have a friend that is a scientist in Chalmers Technological Institute in Gothenburg, Sweden, and he analysed the different octane ratings and the energysubstance in US gas is inferior to European... dont know why, but on the other hand we pay 7-8 dollars a gallon....

RETed

I dyno'd 253 at the wheels on a Dyno Jet with no fan on the IC.
Sure, I could've made more power and it's not representative of what kinda of power it does on the road, but having a car sitting there at WOT is not what I call realistic either.

As for Euro octane ratings, I believe they are "research" octane numbers, while the U.S. uses the (R + M)/2 average.
Research + Measure, average.
Your 98 octane has over there is about the same as 94 - 95 octane in the U.S. - yes, this is a little over the 91 - 93 stuff most people in the U.S. can easily get.

Octane doesn't really make a difference in power unless you're messing with the ignition timing.
And I'm assuming you're still running off the stock ECU?
Is your CAS advanced?


-Ted