Originally posted by DemonSVT:
Old Numbers (2.5L)

271FWHP / 210FWTQ

New Numbers

298FWHP @ 7000 / 245FWTQ @ 5700


Also it is hard to "directly" compare the graphs because the old one was done with no rpm signal.

You can tell the 2.5L and it's split port manifolds made better TQ & HP in the low and mid-range (per displacement)

It also "appears" that now it does not hold the torque as well but it's hard do more than speculate since the torque data is missing on the old dyno beyond "roughly" 6300rpm.

I wonder how the boost level compared between the runs as well???
More boost now???





I pondered this graph and I think it looks really good for what it is!
I mean the 3L manifolds on a naturally aspirated car suck IMHO for a MTX that is geared the way ours is. However, with a centrifugal type blower where the boost sucks in the low end and just starts to build in the midrange where the manifold is really tuned at and then finally starts pushing some good airflow at high rpm where the manifold is not so good, it works out well.
He will have better low-end traction, then the blower will more than make up for his top-end deficiencies with the manifold.
I suspect that if he raised the boost even more it will be a little more low-end but an even better torque curve to redline....more flat which will throw you well over 300 at 700 rpm!

Good job Jason. I would suspect that you need to make sure you have an intercooler, raise the boost some more and do the standard intake and exhaust mods to boost volume flow rate at the same pressure. Probably looking at a good 325+ HP at the wheels when you are all done.

YEP! I just calculated it and if you just hold your 245 ft-lbs of torque up to 7000 rpm you will have 326 wHP!
With an intercooler and injectors and maf you will achieve that without even raising the boost, intercooler being the key I'd say. Of course your midrange torque will go up but shooting for 245 ft-lbs@7000RPM should be feasible with the intercooler OR more boost and good exhaust flow.

PS: Which year of motor and intake system is it, and what cams are you using?

Former owner of '99 CSVT - Silver #222/2760 356/334 wHP/TQ at 10psi on pump gas! See My Mods '05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red '06 Mazda5 Touring, 5spd,MTX, Black