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jstein77
jstein77 Dork
9/4/11 8:07 a.m.

“Meet the new boss, same as the old boss…”

Yes, I bought another Sentra. Traded black for silver, sort of. It’s also a little newer, ’06 vs. ’03. You can also see that it’s been lowered a little. Other than that, it’s almost exactly the same as my old one. With one minor difference under the hood:

It’s a Treadstone turbo kit with a Turbonetics GTK450 ceramic ball bearing turbocharger, front mount intercooler, Greddy blow off valve, Turbonetics wastegate, and an Apexi AFC Neo controller. All told, it adds up to 270 dyno-proven wheel horsepower on 6 psi of boost. Yes, it’s fast. Goodbye G Stock; hello Street Mod.

The thing that attracted me to it was how subtly the whole thing was done. The builder powder-coated the intercooler black so that it totally disappears behind the grill. No stickers, no stripes, stock wheels, even the exhaust tips (exiting from a custom 3” exhaust all the way from the down pipe, including a 3” high-flow cat) powder coated black. There’s nothing outside to indicate how special it is. Q-ship!

On my way home from work Friday, a new Porsche 911 was following close behind me approaching a red light. At the last second, he juked over to the left lane, almost cutting somebody off in the process. I snickered a little, just thinking about how low he regarded the plain-looking Japanese economy car in the lane next to him. The light turned green and I nosed ahead of him with a faster reaction time. I could see his front end lift as he nailed the throttle, but the boost had kicked in and I stayed ahead through first gear. It looked as though I might lose a little ground through second as I saw him inch up a bit, but when I caught third, his advance stopped and he stayed even with my A-pillar up through most of third. At that point, I spiked my brakes, haven proven my point and already going 80 in a 45 zone.

I looked it up – let’s see, 2011 Porsche 911 Carrera S Cabriolet, 0-60 mph, gulp, 4.6 seconds. And I beat it.

I have never owned a car even remotely this fast. It’s scary, giddy, exciting, and wonderful. I’m in the process of setting up the suspension right now for its first autocross in Daytona on the 25th; I’ll let you know how it goes. Considering it’s heavier than stock by a little, I doubt if I’ll be contending for Pax position, but we’ll see how it goes on the overall scale. Should be fun!

SeanC
SeanC New Reader
9/4/11 8:43 a.m.

Very tastefully done, nice sleeper, good buy.

How do you like the high-powered FWD thing? Torque steer, street tire traction when launching hard, etc.?

I've often considered a turbo'd small FWD car, but can't get bad thoughts of an old '86 Daytona turbo I drove years ago out of my head. Terrible torque steer, and not half as powerful as that car.

Enjoy your new ride!

-Sean

bequietanddrive
bequietanddrive New Reader
9/4/11 9:01 a.m.

In reply to SeanC:

Modern FWD turbo cars have come a long way. I can't speak for the SE-R above (good stuff!) but my GTI handles the 250 hp and 300 tq pretty well. I'm not stupid enough to think I have tons of traction from a stop, but once I'm rolling 10 or 15 mph, I have practically no torque steer at all. It's very effortless.

I think the key is knowing your limitations and really making sure to roll on the power.

jstein77
jstein77 Dork
9/4/11 9:21 a.m.

Exactly. The big difference from the 80's cars (I had a GLH Turbo) is the Torsen limited slip differential. That really helps keep wheelspin and torque steer manageable. Noticeable, but controllable.

SeanC
SeanC New Reader
9/4/11 9:27 a.m.
bequietanddrive wrote: In reply to SeanC: Modern FWD turbo cars have come a long way. I can't speak for the SE-R above (good stuff!) but my GTI handles the 250 hp and 300 tq pretty well. I'm not stupid enough to think I have tons of traction from a stop, but once I'm rolling 10 or 15 mph, I have practically no torque steer at all. It's very effortless. I think the key is knowing your limitations and really making sure to roll on the power.

Yeah, the fact that it was an '86 is why I haven't completely taken the idea off my list. I hoped/figured those issues would have been worked out over the last 20 years or so.

I'll have to consider them again when the time for a street/track project comes up. Granted they're not as new as this Sentra , but I see FWD turbo DSMs for cheap all the time - seems they're not as nearly desirable as the AWD cars.

I do miss having a RWD V8 though, but my choices there are expensive(Vette), heavy(f-body, used to have a '93), or seem to need much suspension rework right off the bat(fox Mustang).

Oh well, time will tell. What ever I wind up with, I'm sure I'll have fun with it.

-Sean

Karl La Follette
Karl La Follette Dork
9/4/11 9:43 a.m.

If the back window top is not tinted you can have a piece of black vinyl put on the inside to cover dots Nice

Tom Suddard
Tom Suddard SonDork
9/4/11 9:44 a.m.

Did you say you were auto crossing in Daytona on the 25th? I'll have to find you there and look this thing over, to me it seems like the perfect car!

92CelicaHalfTrac
92CelicaHalfTrac SuperDork
9/4/11 9:47 a.m.

Car looks clean! Nice pick up!

Might want to reconsider the powder-coated intercooler, though. That's not a great idea. Do you have a way to log your IATs? If it's good, it's good, and i wouldn't worry about it, but you're losing efficiency with that.

jstein77
jstein77 Dork
9/4/11 8:05 p.m.
Tom Suddard wrote: Did you say you were auto crossing in Daytona on the 25th? I'll have to find you there and look this thing over, to me it seems like the perfect car!

Okay, Tommy - see you there!

smog7
smog7 Dork
9/4/11 11:20 p.m.

I like the flat black exhaust, very stealth looking.

mad_machine
mad_machine SuperDork
9/5/11 12:42 a.m.

not sure on the powder coated IC.. but a thin layer of black paint on the bars and fins won't hurt anything.

I think there is also a black coating that enhances heat transfer

11110000
11110000 Reader
9/5/11 6:24 a.m.
mad_machine wrote: I think there is also a black coating that enhances heat transfer

True. Most OEM intercoolers are black - higher emissivity means heat is radiated more easily.

Luke
Luke SuperDork
9/5/11 6:29 a.m.

Extremely cool, that . I'd never have guessed what was lurking under the hood.

1988RedT2
1988RedT2 Dork
9/5/11 6:36 a.m.

I love it! I suspect that the guy in the killed Porsche was feeling a bit deflated after that.

pete240z
pete240z SuperDork
9/5/11 7:57 a.m.

Nice Car. I do like the Spec V's and this is one that was put together well!

jstein77
jstein77 Dork
9/5/11 8:07 a.m.
1988RedT2 wrote: I love it! I suspect that the guy in the killed Porsche was feeling a bit deflated after that.

Yes, I can imagine him bringing it back to the Porsche dealership and saying, "There's something wrong with my car! It can't even outrun some little Jap POS."

plance1
plance1 Dork
9/5/11 11:30 a.m.

nice

kazoospec
kazoospec Reader
9/5/11 11:38 a.m.

Nice pick up. I went in the opposite direction with a recent Miata purchase.

a401cj
a401cj Reader
9/5/11 3:39 p.m.

belteshazzar
belteshazzar SuperDork
9/5/11 6:49 p.m.

I like everything about this

DaveEstey
DaveEstey HalfDork
9/5/11 8:34 p.m.

I like the car but 270 whp on street tires does not a sub-5 second 0-60 car make. Porsche guy was a typical porsche guy; well endowed in the wallet, not in the drivers seat.

Welcome to SMF!

Vigo
Vigo Dork
9/5/11 10:34 p.m.
but can't get bad thoughts of an old '86 Daytona turbo I drove years ago out of my head. Terrible torque steer, and not half as powerful as that car.

Shoulda tried motor mounts. Ive owned many turbo k-cars and some that made as much torque if not more than this sentra, and i have NEVER had torque steer (Even with 350lb ft) on a k-car with good motor mounts.

Nice Sentra. I like it.

a401cj
a401cj Reader
9/6/11 8:55 a.m.
DaveEstey wrote: I like the car but 270 whp on street tires does not a sub-5 second 0-60 car make. Porsche guy was a typical porsche guy; well endowed in the wallet, not in the drivers seat. Welcome to SMF!

I thought he said it "added" up to 270 HP. In any case it'll be hard to launch from a standstill.

Cotton
Cotton Dork
9/6/11 10:49 a.m.
1988RedT2 wrote: I love it! I suspect that the guy in the killed Porsche was feeling a bit deflated after that.

A full size chevy trick blew me away in my 911 one time and this was at over 100mph. I just laughed and gave the guy a thumbs up because it was so awesome and unexpected at the same time. As it turned out the truck was supercharged and had nitrous...it was crazy.

jstein77
jstein77 Dork
9/6/11 11:02 a.m.
a401cj wrote:
DaveEstey wrote: I like the car but 270 whp on street tires does not a sub-5 second 0-60 car make. Porsche guy was a typical porsche guy; well endowed in the wallet, not in the drivers seat. Welcome to SMF!

I thought he said it "added" up to 270 HP. In any case it'll be hard to launch from a standstill.

What I meant was that the dyno sheet that came with the car showed a peak of 270 hp at the wheels. Assuming 15% driveline loss, that calculates back to 317 hp at the crank. Pretty stout! Look how flat the torque curve is. That's a really flexible engine - perfect for autocrossing. I haven't tried a really hard launch yet - just rolling into the boost in first after the tires hook up. I'll see how that goes in Daytona. The race tires should help.

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