The OFFICIAL drift setup thread
11-05-10, 11:41 AM
#579
nobody said na was impossible..
another drawback (for me at least) is the noise that an na makes. they are deafening loud without a turbo there to choke up the sound a bit. its no fun to slide when you have a pounding headache and ringing ears.
another drawback (for me at least) is the noise that an na makes. they are deafening loud without a turbo there to choke up the sound a bit. its no fun to slide when you have a pounding headache and ringing ears.
11-06-10, 01:37 PM
#582
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With an NA rotary, you may be able to make mid 200HP rang with off the shelf parts... but that will be from 6-8000 RPM. Which is not a very broad range, making you shift gears a lot more. Now consider that all of this shifting will be above 5000 RPM, you will be eating synchros and clutch disks... If you plan on running over 8000 RPM continually, you will need to spend more time with the build, balancing the entire rotating assembly so you aren't putting more stress on the main bearings/stationaries.
Now you put a turbo on a similar motor, you will be over 100% VE by 3-3500 RPM and if set up properly, this power band will go up to double that of NA, by the 8000 RPM mark. You will lose a little throttle response... but the Positives out weigh the negatives by a landslide.
11-06-10, 02:11 PM
#583
I think the real drawback is usable power band.
With an NA rotary, you may be able to make mid 200HP rang with off the shelf parts... but that will be from 6-8000 RPM. Which is not a very broad range, making you shift gears a lot more. Now consider that all of this shifting will be above 5000 RPM, you will be eating synchros and clutch disks... If you plan on running over 8000 RPM continually, you will need to spend more time with the build, balancing the entire rotating assembly so you aren't putting more stress on the main bearings/stationaries.
Now you put a turbo on a similar motor, you will be over 100% VE by 3-3500 RPM and if set up properly, this power band will go up to double that of NA, by the 8000 RPM mark. You will lose a little throttle response... but the Positives out weigh the negatives by a landslide.
With an NA rotary, you may be able to make mid 200HP rang with off the shelf parts... but that will be from 6-8000 RPM. Which is not a very broad range, making you shift gears a lot more. Now consider that all of this shifting will be above 5000 RPM, you will be eating synchros and clutch disks... If you plan on running over 8000 RPM continually, you will need to spend more time with the build, balancing the entire rotating assembly so you aren't putting more stress on the main bearings/stationaries.
Now you put a turbo on a similar motor, you will be over 100% VE by 3-3500 RPM and if set up properly, this power band will go up to double that of NA, by the 8000 RPM mark. You will lose a little throttle response... but the Positives out weigh the negatives by a landslide.
11-08-10, 02:42 AM
#585
Venture out of the drifting section. You'd be surprised what you can dig up. However you have secretive draggers/racers out there who are ******** and REFUSE to post up their dyno sheets for their bp/pp engines.
It's cheaper to add a rotor than it is to maintain a two rotor with heavy porting, i'm sure. Extended port 20b would have a nice powerband and sound awesome. More money outright but more enjoyable and cheaper in the long run.
It's not a pipe dream if you've got $3500 laying around and can save money. People pay that on wheels and tires alone.
It's cheaper to add a rotor than it is to maintain a two rotor with heavy porting, i'm sure. Extended port 20b would have a nice powerband and sound awesome. More money outright but more enjoyable and cheaper in the long run.
It's not a pipe dream if you've got $3500 laying around and can save money. People pay that on wheels and tires alone.
11-08-10, 09:18 AM
#586
Venture out of the drifting section. You'd be surprised what you can dig up. However you have secretive draggers/racers out there who are ******** and REFUSE to post up their dyno sheets for their bp/pp engines.
It's cheaper to add a rotor than it is to maintain a two rotor with heavy porting, i'm sure. Extended port 20b would have a nice powerband and sound awesome. More money outright but more enjoyable and cheaper in the long run.
It's not a pipe dream if you've got $3500 laying around and can save money. People pay that on wheels and tires alone.
It's cheaper to add a rotor than it is to maintain a two rotor with heavy porting, i'm sure. Extended port 20b would have a nice powerband and sound awesome. More money outright but more enjoyable and cheaper in the long run.
It's not a pipe dream if you've got $3500 laying around and can save money. People pay that on wheels and tires alone.
I talked to SlideAlliance about doing an NA-T. Just a stock turbo, tmic and such. We'll see.
11-08-10, 10:49 AM
#588
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11-08-10, 11:47 AM
#589
Sideways is the only way
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^ depends on how many parts you can/want to sell off the NA too doesn't it?lol. if the na motor is still going and the tranny is in usable condition (synchros are always an issue with na tranny) then you can make back some. There are people from time to time looking to replace a blown NA engine or buy them for parts. also, if you are wanting to sell interior peices as well. Realistically, you could make back at least $500-600. But it IS more work so how much is your time worth?
The thing to do would be to buy an NA shell cheap and then the t2 stuff. so you get the benefit if your shell has no sunroof, no power locks,etc. Thats the only plus I see in using the NA chassis, less work removing all that stuff and the no sunroof thing. otherwise, whats the point? might as well sell the na if it has a sunroof and power everything and get a t2 if the chassis isn't lighter. GTU-S and base model s4's should be the only ones getting t2 swaps. my .02.
The thing to do would be to buy an NA shell cheap and then the t2 stuff. so you get the benefit if your shell has no sunroof, no power locks,etc. Thats the only plus I see in using the NA chassis, less work removing all that stuff and the no sunroof thing. otherwise, whats the point? might as well sell the na if it has a sunroof and power everything and get a t2 if the chassis isn't lighter. GTU-S and base model s4's should be the only ones getting t2 swaps. my .02.
11-08-10, 08:33 PM
#596
my TII has coverage on my wheels, and every part on my car given i can provide documentation (one reason why i keep up on build threads/photos) i only pay $120 for CP&E, and state requirements to drive my car.
11-08-10, 08:37 PM
#597
i railed the **** out of the TII when i test drove it. the kids dad was like "open it up, it's not a V8 but it has some kick to it" hahaha dude wasn't aware of the mean power band when you know whats up.
11-09-10, 01:53 AM
#599
despite what people say i never broke my NA trans... or diff, or axles... i didnt drive really aggressive then so idk if that is credible.
however so far i've had pretty good luck with the TurboII drivetrain. (knock on wood)
i did kill off a clutch, and break a tranny, but they lasted longer than i expected... i did manage to break an axle doing tandom donuts at Forrests shop around a water barrel in first gear, on belted tires which i though was hillarious. but thankfully it broke there, and not the bank at irwindale... that would've been a bad day.
however so far i've had pretty good luck with the TurboII drivetrain. (knock on wood)
i did kill off a clutch, and break a tranny, but they lasted longer than i expected... i did manage to break an axle doing tandom donuts at Forrests shop around a water barrel in first gear, on belted tires which i though was hillarious. but thankfully it broke there, and not the bank at irwindale... that would've been a bad day.