Turbo Choices...
#1
penurious
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Turbo Choices...
im about to pull my motor and rebuild, mildish street port with ceramic coated rotors, housings (maybe) and seals. im looking to hit 400 to the wheels, and id like to do so under 18-20psi.
now, i like the wide power band and quick spool of the stock twins, and i know they are capable of that much power, but i also know they arent garunteed to last long that way.
im willing to reasonably (full boost by 3500-4000rpms would be nice) give up the wide power band and quick spool if it means longer life of my engine and turbo(s).
from reading all night i think that the XS t04s seems like a pretty good candidate for me, but i would like to hear some opinions and suggestions. i like the simplicity, from my understanding it should hit full boost somewhere around 4000rpms, and i like how it keeps the car a little cooler.
i was also considering the BNR stage 3's (sequentially) but how do the compare in price from start to finish against a single turbo (t04s)? in either setup i would like to do a v-mount, and of course all of the suporting mods to go with.
right now i daily drive the car, but a will soon be going to college full time, and most likely will only be driving it on the weekends. reguardless of college, i would still like to consider the car a daily driver. i dont track the car (yet), but it does see the top of fourth gear on almost a daily basis, and curvey roads just as often.
...i know its been talked about 101 times and ive searched and read for 4 hours strait, but i figure one more of these threads wont hurt...
thanks in advance!
now, i like the wide power band and quick spool of the stock twins, and i know they are capable of that much power, but i also know they arent garunteed to last long that way.
im willing to reasonably (full boost by 3500-4000rpms would be nice) give up the wide power band and quick spool if it means longer life of my engine and turbo(s).
from reading all night i think that the XS t04s seems like a pretty good candidate for me, but i would like to hear some opinions and suggestions. i like the simplicity, from my understanding it should hit full boost somewhere around 4000rpms, and i like how it keeps the car a little cooler.
i was also considering the BNR stage 3's (sequentially) but how do the compare in price from start to finish against a single turbo (t04s)? in either setup i would like to do a v-mount, and of course all of the suporting mods to go with.
right now i daily drive the car, but a will soon be going to college full time, and most likely will only be driving it on the weekends. reguardless of college, i would still like to consider the car a daily driver. i dont track the car (yet), but it does see the top of fourth gear on almost a daily basis, and curvey roads just as often.
...i know its been talked about 101 times and ive searched and read for 4 hours strait, but i figure one more of these threads wont hurt...
thanks in advance!
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#8
In the burnout box...
iTrader: (32)
lol the fd is a pain in the *** with the twins... unless you love to play with vaccume lines an know what your doing its smart to go single. bnrs make some great power so do singles just because you have twins doesnt mean its a street car... all that aside just look at how much money you have cause if you go single you pretty much have to buy other parts. the pfc,dataloggit would be nice, fuel system is also i nice compliment! dont for get intercooler routing
#9
penurious
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^well either way im going to do full intercooler/radiator setup, PowerFC, full fuel upgrades, ignition upgrade, clutch upgrades, and brake upgrades.
the main reasons im leaning towards single instead of the BNR's are
to my understanding i could make 400ish without breaking a sweat with the t04s (and ported motor), and i would have to push the BNR's hard(er) to do the same. (someone correct me on this if im wrong)
and also it seems the BNR's are just as much as a pain in the butt as my twins.
the only thing that would make me choose the BNR's over single is the fact that its a daily driven car. does anyone have any opinions on this? is the low end (below 3k) really THAT bad to where its unbearable or uncontrolable? i know that some of support going single 110%, and some are 110% supporting twins, but besides that nonsence, how does it REALLY compare down low? not making full boost by 2k doesnt bother me, but 5k would.
the main reasons im leaning towards single instead of the BNR's are
to my understanding i could make 400ish without breaking a sweat with the t04s (and ported motor), and i would have to push the BNR's hard(er) to do the same. (someone correct me on this if im wrong)
and also it seems the BNR's are just as much as a pain in the butt as my twins.
the only thing that would make me choose the BNR's over single is the fact that its a daily driven car. does anyone have any opinions on this? is the low end (below 3k) really THAT bad to where its unbearable or uncontrolable? i know that some of support going single 110%, and some are 110% supporting twins, but besides that nonsence, how does it REALLY compare down low? not making full boost by 2k doesnt bother me, but 5k would.
#10
penurious
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Originally Posted by willjs7
i went with a 67mm garrett. i love it
check out the GR67 kit from gotham
check out the GR67 kit from gotham
does it really hit 10psi by 3k rpms? is this true for both the ball bearing and non-ball bearing verions? they claim its the manifold that does the trick.
#11
Originally Posted by mono4lamar
r85 nuff said... 402whp at 16lbs on stock ports last time! this time is a nice solid chris rogers street port. i cant wait for the results
#13
Originally Posted by drivelikejehu
how long is awhile? i think the r85 is my new choice.
#14
In the burnout box...
iTrader: (32)
blitzed33 pm me your setup im curious on what you have with that r85... im hoping to jump into the 5's with my new motor and what not. just curious what you have done. i love my r85 and have only good things to say about it. also there was a guy trying to sell a brand new r85 kit in the 3rd gen section. im quite sure he never sold it! if you search for it you'll find it.
#15
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I'm no engineer but dumb this down for me. The intake is pressurised at say 14psi controlled by the wastegate and engine consumption. The velocity is controlled by the engine ability to let air in, therefore the only variable that can change is charge temp. So 14 psi should yield the same power at the same charge temp no matter what turbo is used, right?
#16
Originally Posted by FLA94FD
I'm no engineer but dumb this down for me. The intake is pressurised at say 14psi controlled by the wastegate and engine consumption. The velocity is controlled by the engine ability to let air in, therefore the only variable that can change is charge temp. So 14 psi should yield the same power at the same charge temp no matter what turbo is used, right?
well, the first turbo is boosting at 10 psi....the second one comes on DOUBLING the volume of air but still only making 10 psi right and making MORE power. This is what I am getting at, the larger the turbo, the more volume its pushing at the same given boost.
#19
Originally Posted by FLA94FD
I'm no engineer but dumb this down for me. The intake is pressurised at say 14psi controlled by the wastegate and engine consumption. The velocity is controlled by the engine ability to let air in, therefore the only variable that can change is charge temp. So 14 psi should yield the same power at the same charge temp no matter what turbo is used, right?
A small turbo (like the stock twins) at 14 psi wont move as much air as a larger turbo at 14psi. The difference is volume. A larger turbo putting out the same pressure as a small one will be more efficient due to it not having to work so hard to compress the air. That means the pressurized air will be at a lower temperature.
Think of it like a 1 lane highway compared to a 2 lane: on one, you can have 1 car travelling at 50mph at a time, on the other you can have 2. Same speed, more cars.
^^^ That is unless Im retarded and I have it all wrong ^^^
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