zstroken
For $$$ your name here
- Joined
- Sep 27, 2006
- Messages
- 23,151
they're ice skating in hell at this very moment
No they aren't! LOL!
they're ice skating in hell at this very moment
No they aren't! LOL!
Leadfoot, all those parts are already needed on 2.6 trucks (super duper trans parts, huge axles, bigger ujoints & yokes, major engine work, etc.).
I don't see that rationale behind the theory that a restrictor will bring the high flowing chargers waaaay down but not also do the same to a lower flowing charger?? For the most part, the effect is on a linear path. Maybe slightly arched curve but I don't think it's a drastic curve?? Or is it?? The harder the turbo sucks the air through the orifice, the more effect it has at reducing the mass flow??
Dangit I'm gonna have to get my books out & check out calcs on flow through nozzles... Ug
any type of restricter or bushing will not make different size chargers flow even. this may work to reduce the power of these race cars, which it will do. but this is not an effective way to make s480's and s465s flow the same. call me stupid or what have you. it has already been proven with bushings. Clipping the wheel and make it a true 2.6 bore is the best way to do this, and to further make it more effective, loose the map groove.
Leadfoot, all those parts are already needed on 2.6 trucks (super duper trans parts, huge axles, bigger ujoints & yokes, major engine work, etc.).
I don't see that rationale behind the theory that a restrictor will bring the high flowing chargers waaaay down but not also do the same to a lower flowing charger?? For the most part, the effect is on a linear path. Maybe slightly arched curve but I don't think it's a drastic curve?? Or is it?? The harder the turbo sucks the air through the orifice, the more effect it has at reducing the mass flow??
Dangit I'm gonna have to get my books out & check out calcs on flow through nozzles... Ug
It's comical the lack of understanding in this thread. If the flow is unrestricted before a 2.6" bushing or bore with the wheel protruding, it can still draw air through the MWE groove. If the air is restricted to a 2.6" orifice before the compressor inlet, there is no way to allow excess flow around the inducer. It doesn't matter if the compressor can flow 125lbs if it can only be fed 95lbs through the restriction, a wheel closer to the size of the orifice will produce the same hp as a larger wheel, with less lag. Protrusion wheels with big exducers will effect hp, but more so in the lag department rather than total flow, even if the MWE is removed. This would not be the most common rule in motorsports to limit hp on a turbocharged application if it didn't work.
It's comical the lack of understanding in this thread. If the flow is unrestricted before a 2.6" bushing or bore with the wheel protruding, it can still draw air through the MWE groove. If the air is restricted to a 2.6" orifice before the compressor inlet, there is no way to allow excess flow around the inducer. It doesn't matter if the compressor can flow 125lbs if it can only be fed 95lbs through the restriction, a wheel closer to the size of the orifice will produce the same hp as a larger wheel, with less lag. Protrusion wheels with big exducers will effect hp, but more so in the lag department rather than total flow, even if the MWE is removed. This would not be the most common rule in motorsports to limit hp on a turbocharged application if it didn't work.
Here is an idea, go make a restrictor plate class, leave the current 2.6 as a protrusion, and report back the results.
If it takes off, then others will follow, if not guess we figured that one out!
Here is an idea, go make a restrictor plate class, leave the current 2.6 as a protrusion, and report back the results.
If it takes off, then others will follow, if not guess we figured that one out!
When i read the title i was thinking more towards restrictor tube being inline after the turbo? I know i am not a turbo geru or anthing, but i saw were somebody compared it to nascar restrictor plate. In that case the carb will still let all the air go through it, but is limited by the restrictor plate. That was my thinking here have your restrictor tube inline of boost tubes. But thinkin of it that way i dont see too much power loss there.
A restrictor would work either before the turbo or after (it would be interesting to see which one if any would have the greater effect), but I think most agree plumbing into the intake prior to the turbo would be easier than post turbo (less likely to blow a boot as well). I think that is why people are looking to place it before the turbo. Plus removing and installing clamps post turbo to check a restrictor adds a chance for a loose connection and loss of boost or blowing off a boot. FWIW
Here is an idea, go make a restrictor plate class, leave the current 2.6 as a protrusion, and report back the results.
If it takes off, then others will follow, if not guess we figured that one out!
80's bushed to 2.6 seem to run pretty darn good!