I think it’s sounds great, I’ll be getting a set for sure.
I’d like to throw my two cents into the ring here about these half truths about gains etc.
having actual ecu tuned cars before, I’ll set a few things straight.
1) You most likely won’t get much or any change in peak horse power or tq without a tune. You will most definitely won’t get a drop in hp or tq.
2)On a boosted engine your torque will not shift to the right. N/A yeah that may happen. The torque gained from back pressure in N/A is a thing. Boosted engines, the faster you can clear those Gases the better. The turbo it self provides all the back pressure needed.
3)Spool up, spooling the turbo by having a clear path and free flow will spool you turbos faster. Most likely moving your torque curve to the left.
4)Thermodynamics, turbos spool from hot gases moving to a cooler area creating the gas flow velocity. So we are getting a few things with a down pipe. Better flow, spool and cooler egt. So again better faster spool, less HEAT soak, keeping the timing from being retarded from prolong blasts or hot operating temperatures. Take your truck to somewhere like glamis, the first burn yep peak horse power, and you blast and have fun on the skinny pedal, temps will rise your charge temps will increase no matter the size of your intercooler, you turbos will be getting dam hot if they cant clear the gases, your ecu will retard timing, and add fuel in an attempt to control temps and detonation, thus less power the more you run it hard.
So with out tuning yeah your power wont see more power, cause you are not changing any ecu parameters. Like (more) boost, (advance) timing advance, or (lean out) fuel. But like all turbo engines heat management is key, this is why we all want bigger intercoolers managing the incoming air. Down pipes and free flowing exhaust manage the out going temps. And if you plan to tune the vehicle in anyway these are pretty standard bolt on for performance.
And one last thing if you did put on a intercooler and not down pipes you are shooting your self in the foot. The increased volume means your turbos have to spin faster to creat the same psi at the increased volume, down pipes will help with that from what I wrote above.
sorry for the long post but thought I’d share as I just pulled my head away from my tuning computer after fixing a map for a super charged Miata on megasquirt.
I’d like to throw my two cents into the ring here about these half truths about gains etc.
having actual ecu tuned cars before, I’ll set a few things straight.
1) You most likely won’t get much or any change in peak horse power or tq without a tune. You will most definitely won’t get a drop in hp or tq.
2)On a boosted engine your torque will not shift to the right. N/A yeah that may happen. The torque gained from back pressure in N/A is a thing. Boosted engines, the faster you can clear those Gases the better. The turbo it self provides all the back pressure needed.
3)Spool up, spooling the turbo by having a clear path and free flow will spool you turbos faster. Most likely moving your torque curve to the left.
4)Thermodynamics, turbos spool from hot gases moving to a cooler area creating the gas flow velocity. So we are getting a few things with a down pipe. Better flow, spool and cooler egt. So again better faster spool, less HEAT soak, keeping the timing from being retarded from prolong blasts or hot operating temperatures. Take your truck to somewhere like glamis, the first burn yep peak horse power, and you blast and have fun on the skinny pedal, temps will rise your charge temps will increase no matter the size of your intercooler, you turbos will be getting dam hot if they cant clear the gases, your ecu will retard timing, and add fuel in an attempt to control temps and detonation, thus less power the more you run it hard.
So with out tuning yeah your power wont see more power, cause you are not changing any ecu parameters. Like (more) boost, (advance) timing advance, or (lean out) fuel. But like all turbo engines heat management is key, this is why we all want bigger intercoolers managing the incoming air. Down pipes and free flowing exhaust manage the out going temps. And if you plan to tune the vehicle in anyway these are pretty standard bolt on for performance.
And one last thing if you did put on a intercooler and not down pipes you are shooting your self in the foot. The increased volume means your turbos have to spin faster to creat the same psi at the increased volume, down pipes will help with that from what I wrote above.
sorry for the long post but thought I’d share as I just pulled my head away from my tuning computer after fixing a map for a super charged Miata on megasquirt.
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