My scooby ( Hawkeye JDM STi) went on the dyno today... The car is stock except from a ctaback greddy PE2 exhaust... It made 315ps and 423nm (engine) and 265ps at the wheels. is this normal? i also bought an sti panel filter but didnt have it on the car on the dyno run... would it have given any extrahorsepower or not?

 

excuse my stupidity but if you have an STI does it not already have an STI filter fitted ???

 

the standard filter is an orange one... the sti panel filter is an extra part which doesnt come stock in any subaru...search in here for sti panel filter and you will find a lot of info about it...

 

Thats pretty good if you would have fitted the panel filter you would have seen an improvement in bhp and torque

Tony

 

My Spec C dynod at 294bhp & 240 ish at wheels when it was standard so your figures seem OK/good

TX.

 

looks good to me dont forget there 280 ish bhp at the flywheel when there standard, so a gain of 35 bhp from those few mods is very good

 

In an early issue of Scooby Mag they tested Panel filters back to back on a rolling road, I am pretty sure with the STi one fitted they had less power. I can dig it out tomorrow if you need me to...

 

yeah but isnt that because it was tested on a non jdm car? i think its being made for them and therefore if it wasnt tested on one that might be the reason it didnt get better bhp... btw my car only had the catback exhaust on the dyno run and since i had forgotten to take the filter with me i couldnt dyno it with the sti panel filter...

 

My old spec c was tested on the rolling road, 2 runs before and 2 runs after fitting, showed an increase of 12bhp and 15lbs of torque, this was whilst the engine was still running and gaining heatsoak also was on the original JDM map, ran at 316bhp with about 260bhp@wheels

Tony

 

Umm.. I don't know but I doubt it - I can't see how a panel filter design can be different enough to care if its in a JDM/UK/US/EURO spec car personally?

I thought the STI filter was a service item as well? So disposable. The fact I don't have to pay for filters anymore is why mine has a Green one in!

 

it is a service item but dont forget that the jdm engines are quite different than eu/uk/usa...