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**JohnStranahan** · 12-13-2007, 04:20 PM

I like those Vacuum Accumulators on that ITB. I will make something similar that will go inside the air intake plenum so that air intake temperature will be sensed. I thinking of using a big fuel filter can (2 inch diameter) that I saw on the wall. It has two inlets and is about the right volume.

Baseline Numbers and Numbers with tune.
I took the time today to get some baseline numbers on the 2005 Focus ST. Here are the general specs. Cold Air Intake plus Cold Air Intake Box, 124 wheel HP.

After my SCT tune, lightweight wheels and tires, lowered and running Plus Gasolene I am at 131 HP. These numbers were determined with what I will call my Freeway Dyno. All you need is the weight of the car plus passengers and a stop watch and some Physics. The details are Here in my Journal, Freeway Dyno.

G-tech Data
I now also have a G-tech unit which I used to get 1/4 mile times, 0-100 mph times and backup Wheel Horsepower numbers.
1/4 mile - 16.26 s @86.7 mph
0-100 mph - 21.35 When I add my coast down Horsepower or the power used to fight wind and road friction at 5000-6000 RPM in 3 rd gear (20.8 HP) to the G-tech's wheel horsepower number in 3rd gear at 5200 RPM (110 HP peak). I get 131 HP. There is good agreement between the two methods and good agreement on a chassis dyno for my original 124 wheel horsepower with just a cold air intake which added 8 HP to the baseline vehicle.

I corrected a Horsepower error from the G-tech. I found max HP at 5200 not 5000 rpm. It peaked at 110 there but does not include wind and road drag.

12-13-2007, 04:20 PM	#49 (permalink)
JohnStranahan Junior Member Join Date: Dec 2004 Posts: 98	Re: Suzuki GSXR 750 quad Throttle Body Install on 2.3 L Duratec I like those Vacuum Accumulators on that ITB. I will make something similar that will go inside the air intake plenum so that air intake temperature will be sensed. I thinking of using a big fuel filter can (2 inch diameter) that I saw on the wall. It has two inlets and is about the right volume. Baseline Numbers and Numbers with tune. I took the time today to get some baseline numbers on the 2005 Focus ST. Here are the general specs. Cold Air Intake plus Cold Air Intake Box, 124 wheel HP. After my SCT tune, lightweight wheels and tires, lowered and running Plus Gasolene I am at 131 HP. These numbers were determined with what I will call my Freeway Dyno. All you need is the weight of the car plus passengers and a stop watch and some Physics. The details are Here in my Journal, Freeway Dyno. G-tech Data I now also have a G-tech unit which I used to get 1/4 mile times, 0-100 mph times and backup Wheel Horsepower numbers. 1/4 mile - 16.26 s @86.7 mph 0-100 mph - 21.35 When I add my coast down Horsepower or the power used to fight wind and road friction at 5000-6000 RPM in 3 rd gear (20.8 HP) to the G-tech's wheel horsepower number in 3rd gear at 5200 RPM (110 HP peak). I get 131 HP. There is good agreement between the two methods and good agreement on a chassis dyno for my original 124 wheel horsepower with just a cold air intake which added 8 HP to the baseline vehicle. I corrected a Horsepower error from the G-tech. I found max HP at 5200 not 5000 rpm. It peaked at 110 there but does not include wind and road drag. Last edited by JohnStranahan; 12-14-2007 at 09:04 PM.