fourth is a bit overdriven. it would have be nice to have a 1:1 4th. i dont have the ratios in front of me nowtwinz said:I thought 4th gear in the wrx has 1:1 ratio? If so, is there a reason to do dyno runs in a gear that isnt a straight 1:1 ratio? doesnt that make power numbers inaccurate since the torque multiplier of the gear ratio would affect the #'s?
Glad to hear that as my own upgrade plan will most likely get me in the 300-320whp range when completed so this is good info to have..thought I might have had to rethink my injector selection( sti 565's). On the gearing..that is worth checking. To get an accurate picture of power output it is most common to do dyno runs in a gear that has a ratio of 1:1 or as close to that as possible...usually 4th gear on most 5 speed tranny's.VividRacing.com said:twinz- No FPR as of yet. Not maxed @ 318 maxed @ 375.
Also not sure about the gear or number differences by gear. Looks like they were from third gear. Will ask Brainstorm for more info when Roshan returns on Monday.
Thanks for interest and input.
True but I always dyno in 4th gear anyway. I doubt there's more than 10 Hp difference though.Trypsin said:
fourth is a bit overdriven. it would have be nice to have a 1:1 4th. i dont have the ratios in front of me now
VividRacing.com said:Right on. I'll let you know what I find out on Monday. Hoping to get to the track tonight for some 1/4 mi passes on and off the bottle. It's still pretty hot down here but @ least I'll be able to get an idea of what I picked up. I'm finding out quickly that the right tuning makes all the difference.