shift point, with mods

[awdEAGLEtsi]

I havent' seen anything on shift points as far as adding mods. obviously adding mods and such, changes the power band and max hp and torque and such. now if i just did basic, upgrades like, afc, intake, exhaust, turbo, mbc.....and any other little thing i forgot, how much would that change the power band, and would there be anyway to find the shift points with out dynoing. i figure it has to, just cause if the turbo spools faster, not to mention back pressure affects torque and such. if anyone wants to explain that would be great. thanks

 

[blcknspo0ln]

stock t25.. shift that mother at 5500 rpm

16G up depending on if you have a limiter or not.. i'd say any turbo that pulls to redline.. shift at redline

 

[awdEAGLEtsi]

yeah but that doesn't include torque, or where the max hp is...you don't want to keep pulling past the max hp, cause the hp drops usually

 

[Zenja]

Yes you do want to continue going past the max hp. The power drops but when you shift the power after shifting will be less than the power after the peak hp in the previous gear.

With mods I would say the power range moves toward the latter end. Most of the things we do for power work the best at high RPMs.

 

[Libila]

^ ding ding ding!

 

[pneumo]

You could also search the net for dyno graphs of cars that have similar mods to yours. Here's one as an example, this was done on a 2G with the T-25 turbo at 3 different boost levels. www.newcelica.org/larryd/dyno/02-01-02-dyno_comparison.jpg

It's odd that as the boost went up, the rpm that peak HP occurred went down.