cincy 2k+4 photo collection request / hosting - update

[txrocco at sbcglobal.net (Patrick Bureau)]

Well how about I tell you the 2L hybrid has a 4-2-1 exhaust 2" pipe not cat to bosal muffler, lightened flywheel, and a G grind cam in it. audi 500 TB with knock box etc..
 
wheel are 15x7 / 205/50/15 v rated.
 
I was not toped out at 224KPH @ 6400 we ran into traffic...
calculate again please : )

Jason <jason@scirocco.org> wrote:
At 04:40 PM 6/11/2003, Patrick Bureau wrote:
Oh Jason I was not taking it that way, but now you got me intrigued.
Cool. :)        


well if ya get all technical on me then you tell me...
I'll do my best...


3.67 final gear tranny 9a. and I was at 6400RPM 
K, that's a 3.67 R+P and an 0.89 5th.
With a stock tire size, 6400rpm would put you right at 210 km/h.  (Which is miraculously -- and admittedly completely coincidentally -- close to the 211 I said in the last mail...)


maybe I need to find a cop.... he can tell me... (grin) could be worth it...
then again I could just get a dyno...
Yeah, the cop might not be such a good idea. <smirk>
But a dyno run is always the best way to know. :)

Okay, if your car actually topped out at 6400rpm in 5th / 210 km/h, we can estimate how much power you were putting to the ground (assuming, again, stock tire size and aerodynamics)...

Calculation:
You'd need about 1590N of force to the ground to combat that air and rolling resistance...  which would equal ~450Nm of force to your wheels, which would equal ~332 Lb-Ft of torque at your wheels, which would be about 101.5 lb-ft of torque when reduced by your gearing.  101.5 lb-ft of torque at 6400rpm = 123.8 hp.

Result:
You'd need (very approximately) 124hp @ 6400rpm to the wheels to achieve 210km/h in a Scirocco.  
For comparison purposes, a stock 1.8 16V that puts 105hp to the wheels (at 5750rpm) only puts down about 86hp at 6400rpm.   (And a stock 2.0 16V that puts 121hp to the wheels (at 5500rpm) only puts 105hp down at 6400rpm.

So my guess is that your 2.0 is running a very aggressive cam, no?
Jason




Jason <jason@scirocco.org> wrote: 
   At 11:55 AM 6/11/2003, ATS - Patrick Bureau wrote: 
   >what do you mean innacurate.. ? 
   >chasing that GSR was not a peice of cake and we were flying on the road.. :) 
   Oh I don't doubt that you were flying.. :)


   224 km/h in a Scirocco (Cd=0.38, A=1.68m^2) is a very tough number to 
   achieve, though. To hit it, you would have to put just a hair over 150hp 
   to the wheels at that speed, which with a 3.94 R+P and an 0.80 5th gear 
   (for example), would be ~6700rpm.


   Not that I haven't heard from many sources that your car is fast as shit, 
   but my guess is that the Kamei kit turns your Cd into more like 0.40 or 
   0.42, which would increase that number somewhat more.


   To my recollection, I've only seen a dyno result of a naturally aspirated 
   4-cylinder VW over 150whp once, and that was Brett. (Forgive me if there 
   are more of you out there -- I think Riley McDowall and Shannon Fenton may 
   have been around the 150 mark, too)...


   Brett peaked at 150.8whp @ 6750rpm... With his 3.89 R+P and 0.75 5th, he 
   should see a top speed of 221 km/h (137mph). [An 0.80 5th would, 
   coincidentally, bump that number up to 224 km/h... The increase self 
   evident, of course, because as I said above, that speed would almost 
   exactly coincide with his HP peak]


   Either case, German auto makers generally build in 5-7% positive error in 
   their speedometers... (Under German law, they can have between 0 and 7% 
   positive error, but no negative error.) They all do it - BMW is notorious 
   for ridiculous error at high speeds. An indicated 224 was probably 
   actually around 211km/h, or 131mph... which is a FANTASTIC achievement in 
   any Scirocco... much less an 8V, which likely has its power peak below that 
   of a cammed 16V like Brett's. (And had a stock top speed of around 180 km/h!)


   Not attacking your car at _all_ -- like I said, I heard from a number of 
   people this weekend that your car was brutally fast!


   Jason










   >ATS - Patrick Bureau - txrocco@sbcglobal.net 
   >Http://www.longcoeur.com/scirocco/ 
   >============================================ 
   >'85 2.0L Prowler Orange Kamei X1 Rocco 
   >'85 1.8L Titian Red Rocco (daily driver) 
   >'98 4.0L Jeep Cherokee 
   >'91 7.3L F250 diesel Super cab,8 Ft box. 
   > 
   > 
   > 
   >=>-----Original Message------ 
   >=>From: Jason Cammisa [mailto:jcammisa@alwaysonline.net] 
   >=>Sent: Wednesday, June 11, 2003 9:56 AM 
   >=>To: ATS - Patrick Bureau; Ken B; scirocco list 
   >=>Subject: RE: cincy 2k+4 photo collection request / hosting - update 
   >=> 
   >=> 
   >=>At 10:45 AM 6/11/2003, ATS - Patrick Bureau wrote: 
   >=>>yeah that is like almost 90 or close to it... I should of taken pictures 
   >=>>when I was doing 224KPH the other day...nice round number on a digifiz I 
   >=>>tell you... 
   >=>--0-1338643187-1055364022=:48503-- 

ATS - Patrick Bureau - txrocco@sbcglobal.net
http://www.longcoeur. com/scirocco/
==============================
'85 2.0L Prowler orangeKamei X1 Rocco
'85 1.8L Titian Red Daily Driver Rocco
'98 4.0L Jeep Cherokee
'91 7.5L Diesel F250 Super cab w/8ft bed.