M34LNCH

iTrader: (3)

well i think its clear that top speed is achivable with not that much power, however I personally find that a bit pointless, for example 500whp will get a 6spd car upwards of 190++ but it will take quiet a bit to get to it. The standing mile is the real test of acceleration Vs Usable top speed. If you have to sit there for 2-3 miles (pretty fast at speeds over 150-160) to achieve 190+ is pointless.

Also comparing the 1uz engines that were used and are still be used in competitive drag racing to anything anyone arround here puts on thier cars is silly at best. Those cars for example Titan's or Turbonetics 200mph cars have a gabillion dollars worth of R&D on them to make the power they made.

But then again i'm just another "internet expert"

rawdil49

thanks for the link to those TOWNHOUSES. i was referring to real houses.

RexNICO

iTrader: (1)

Don't recall how much they spent, but someone set a Salt Flats speed record of 200.460 mph in a ~99 (Y33) Q45 running a normally aspirated 4 liter V8. If they can make that brick go over 200, an SC should be able to do it as well.

TTSC3

This isn't that hard. When I was making 370whp, I was able to run my SC, with the stock diff, and W58, up to well over 160mph (it didn't take me all that long to get there either). I had the speedo pegged, and was still pulling revs, so with the 540whp/500wtq I'm making now, a Getrag, and enough gearing, it shouldn't be that hard. My GTE setup is TAME compared to most too, so I think there are plenty of SC's that could do it.
Is the auto TT lsd enough gearing to make it to 200mph though? Given the right wheel/tire size, rpm, auto TT gearing, from what I can gather, it might be pretty close. It might take like 8k rpm, so some valve springs would be in order, but the price tag wouldn't be all too high to accomplish this.

Knightridr

Accidentally I was racing a 03gti last night and did 150mph and I got worried so I got off of it. But needless to say I won and my car is faster than I thought it was. I am all stock 100% for this week. Next will be a different story.

mrpgriffin

157 mph w/windows down..93 sc400 stock

swanyre

I'm new here, and yes, yes I am going to revive this post.

Mainly for 2 reasons, the way some of you are bickering and carrying on makes me feel like I am standing in the middle of some ricers arguing about their honduhs and DSMs.... buy anyways.. here are some specs on the R154 tranny for those guys with the 1J swap....

Manual Transmission Specifications (R154)
Gear ratios
Reverse 3.18
First 3.251
Second 1.955
Third 1.310
Fourth 1.000
Fifth 0.753
Lubricant Capacity - Gearbox 3 Litres
Oil specifications 80W-90 GL4 or 5 Gear Oil

Final Drive Ratio 4.100
Differential Code G299
Drive Pinion - Number of teeth 10
Ring Gear - Number of teeth 41
Ring Gear size 200mm
Driveshaft Diameter 29.60mm

Lubricant Capacity - Differential 1.3 Litres
Oil specifications API GL5 Hypoid Non-LSD Gear oil

Top Speed km/h @ rpm
First Gear 67 @ 7500
Second 111 @ 7500
Third 166 @ 7500
Fourth 218 @ 7500
Fifth 289 @ 7500 = 179.576275 miles per hour

That is gearing, so I would think a 6 speed, or the proper swap would be able to own the 200MPH mark fairly easy, top speed isn't power, but car and road... power just makes it quicker to get there.

SCpower

Hi im new here too... haha. And yes After reading every single post, It seems that the non believers are starting to believe. Their only excuse now is how long it takes to get there... The thread simply states top speed and not how long the sc can maintain it. Why in gods name would you want to stay up at that speed anyways?

cbrasian

to hit that number and fast on a sc you'd have to spend close to 30-45k first you gotta get the swap 2jzgte, wireharness, the getrag 6 spd tranny, a good clutch (rps carbon carbon os giken etc.....supra 6 spd pumpkin if you can find it (trd internals preferred but not needed) upgraded injectors (1000 cc )upgraded fuel ex dual walbros big turbo 71mm at least, fuel management system (aem, motec etc) wide band o2 sensor 4 row intercooler 41mm tial wastegate boost logic 3 inch downpipe 3 inch exhaust that would be able to hit that number but the real wall is how big are your ***** cuz at 170 in a car is a hell of a lot scarier than on a motorcycle

pioww

The 6 speed would require more engine rpm than the 5speed, although not as durable, check the ratios. Aerodynamics would be a big factor. Lowering the car, front splitter and rear diffuser, use tape to make the car more slippery in the air if necessary. Engine rpm would be the limiting factor. Increased diameter tires would help to reduce that. Use a speed calculator factor in gearing, tire diameter, and engine rpm; see what you get. Funny thing stats from lexus show the coefficient of drag as .31 with the spoiler and .32 without. The coefficient of drag is probably you biggest restriction on hitting 200 mph. The greater the coefficient of drag the more power you will need to over come it. This should follow a natural logarithm, from a factor of one, where ever that is. I don't know. I think it is possible. The money spent will probably affect reliability quite a bit. I would figure that a cage for a car that does 200 in the 1/4 mile would be necessary to limp away from a crash at that speed. An average roll cage probably won't do it if you hit something. 7500 is a good start for an NA-T swap which would be a good place to start. A focused methodical and well researched plan will get you there. Once you do it let us know how much you spent, so we will know how much it costs.

cbrasian

he can always hit 200 on a dyno with no load lol taking out the aerodynamics, but yeah the car would have to be slammed to not feel like its floating a front adj splitter for downforce and read adj spoiler and diffuser and is gonna be needed for high speeds to hold it down but technically the car can hit the speed with out it...just not safe a cage would be preferable but theres people who are crazy enough to do it without

wanganstyl

iTrader: (5)

200 shouldnt be an issue if power aero and gearing are in sync, the question of the car being agile and manuverable at 150++ is really the question. But if the JZA80 does it well (which it does reasonably); the SC shouldnt be an issue to setup. does SC have better CD than JZa80?

cars with mediocre CD's can pop high speeds easily. in the last couple weeks ive gotten to enjoy the new z06 and modded 996TT, at 150-170 those things are still in very usable range of manuverability and full on braking to turn in is no sweat either.

a reasonable amount of footwork should make the sc ok at those speeds, but the newer cars (2005++) are so smooth on the top end.