|
|
|
|
Thread Tools | Display Modes |
03-08-2021, 07:50 AM | #26 |
Scooby Newbie
Member#: 459394
Join Date: Dec 2016
Chapter/Region:
Tri-State
Location: Rochester, NY
Vehicle:2015 WRX Crystal White |
|
03-08-2021, 09:55 AM | #27 | |
Scooby Specialist
Member#: 431550
Join Date: Oct 2015
Location: South Florida
Vehicle:2016 WRX ALL THE STAGES |
Quote:
|
|
03-10-2021, 08:24 AM | #28 | |
Scooby Newbie
Member#: 473226
Join Date: Aug 2017
Location: PA
Vehicle:2022 WRX |
Quote:
But as I said in the OP, if you're just going to say that it's a bad idea/stupid/silly/etc, feel free to find another place to share that opinion. I am trying to find constructive answers to a question not many people ask. Most people go built block for a maxed out aftermarket turbo, and I am exploring the idea of something that matches the torque curve of what other manufacturers are putting out in their halo daily cars(Think Focus RS, Golf R, M340i, etc.) Peak torque at like 3k, at least 80% peak torque at 2.25. |
|
03-10-2021, 08:34 AM | #29 |
*** Banned ***
Member#: 500337
Join Date: Apr 2019
|
My oem turbo reaches max torque at 3000rpm. Maybe 3100rpm. It is capable of 500wtq at low 2000rpms per tuner. Rods arent capable of that so they limit it.
Build your block and rods and ask tuner to max torque at 2500rpm. I dont understand what your gripe is about? Generally turbo motors are torquier earlier than na motors, thats what turbo does. Which v8 you speak of is reaching those specs of yours; 80% at 2.25 and 100% at 3000rpm, that is not diesel. Wrx Golf R Supra (upgrades turbos what you want but earlier i guess at 2.25x1000rpm) In my opinion looking at this data the wrx curve is thickest, earlies and flattest (not comparing supra, only r and wrx). Last edited by Rexy18; 03-10-2021 at 08:41 AM. |
03-10-2021, 02:48 PM | #30 | |
Scooby Newbie
Member#: 473226
Join Date: Aug 2017
Location: PA
Vehicle:2022 WRX |
Quote:
As for V8s, yes most modern ones are at peak torque around 4-5k, but they are within 50 ft/lbs of that off idle. Dyno charts also don't demonstrate how long the spool time is. Even with all tuning limits disregarded, these turbos are not going to spool very quickly on the journal bearings. It can be improved, but never as good as a BB. |
|
03-11-2021, 07:13 AM | #31 |
Scooby Newbie
Member#: 323759
Join Date: Jun 2012
Chapter/Region:
International
Location: Canberra Australia
Vehicle:2010 legacy GT Black |
So the MGT2259s stock CHRA is not ball bearing?
That's a shame. Last edited by moral hazard; 03-11-2021 at 07:25 AM. |
03-11-2021, 10:25 AM | #32 | |
Scooby Newbie
Member#: 473226
Join Date: Aug 2017
Location: PA
Vehicle:2022 WRX |
Quote:
Sure is. It probably wouldn't have made a difference if they had, the factory internals can't take the torque hit if the tune didn't compensate for it. If Subaru had used slightly better internals and a ball bearing turbo, I have a feeling we would be seeing a lot more broken transmissions, and a hell of a lot more bolt on cars in the 350-400whp club. I would gladly have paid an extra 1k for that car. |
|
03-11-2021, 12:56 PM | #33 |
*** Banned ***
Member#: 500337
Join Date: Apr 2019
|
I agree, i would have paid too knowing what I now know. But we are exceptions not the rule.
But build your rods and slap on a socal v3 and you can achieve your goal of low end torque. Stock turbo can do 500wtq in low 2000rpm, but stock rods cant. That sure would be a monster to drive. The next issue with your goals is fueling, need meth or port injection to reach 460whp safely and consistently without taking short cuts. Hopefully fa24 comes dual injected, or just capable of 500/500 on stock di ***55357;***56838; |
03-14-2021, 12:08 AM | #34 | |
Scooby Newbie
Member#: 473226
Join Date: Aug 2017
Location: PA
Vehicle:2022 WRX |
Quote:
|
|
Thread Tools | |
Display Modes | |
|
|