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Showing results 1 to 25 of 128
Search took 0.02 seconds. Search: Posts Made By: zanick
Forum: Porsche 911 Technical Forum 04-08-2003, 11:57 AM
Replies: 44
Views: 4,021
Posted By zanick
when you started in 6th, you had 16% of the ...

when you started in 6th, you had 16% of the torque you would have to accelerate than in 1st. However, as you would imagine, the top speed would be 6times faster. (assuming the gear ratios were...
Forum: Porsche 911 Technical Forum 04-07-2003, 05:08 PM
Replies: 33
Views: 2,864
Posted By zanick
they are very accurate, and repeatable, under the...

they are very accurate, and repeatable, under the same conditions. it tells you what you need to know. what your engine puts down to the ground to move the car forward. The equations are simple....
Forum: Porsche 911 Technical Forum 04-07-2003, 02:49 PM
Replies: 44
Views: 4,021
Posted By zanick
This is wrong below, due to the fact that the...

This is wrong below, due to the fact that the flat curve is even more the reason to shift. if you are at 4000rpm at max torque and dont shift and are trying to accelerate me, (me being in the exact...
Forum: Porsche 911 Technical Forum 04-07-2003, 02:43 PM
Replies: 44
Views: 4,021
Posted By zanick
Then, the gear box and rear end , with tire combo...

Then, the gear box and rear end , with tire combo that ends up with 125 top speed, and you are set. Providing the 5th gear is not an overdrive gear (big spacing) if so, like our race car, (porsche...
Forum: Porsche 911 Technical Forum 04-07-2003, 02:33 PM
Replies: 44
Views: 4,021
Posted By zanick
Good John. I didnt want to chime in about contact...

Good John. I didnt want to chime in about contact patch as that is another can of worms, right!! But, also a very good point.

Second, kind of off with the '" sweet spot" with regards to HP and...
Forum: Porsche 911 Technical Forum 04-07-2003, 12:08 PM
Replies: 44
Views: 4,021
Posted By zanick
Hi Dean, That s a great question. my race...

Hi Dean,

That s a great question. my race buddy (BMW guy, booo hiss)

just bought a set of forged single piece BBS race rims and they are 16lbs a piece for 16"s . He is also obsessed about...
Forum: Porsche 911 Technical Forum 04-07-2003, 11:08 AM
Replies: 44
Views: 4,021
Posted By zanick
if it is going to be used for most all tracks in...

if it is going to be used for most all tracks in nor cal, then gear it for a top speed of 135mph and take the closest gear ratio. if you visit willow springs, you may want it to to out at 145mph,...
Forum: Porsche 911 Technical Forum 04-07-2003, 11:05 AM
Replies: 44
Views: 4,021
Posted By zanick
lower gearing, cannot give you an advantage at...

lower gearing, cannot give you an advantage at all tracks. If you happen to have a gear box that works (gears or tire sizes), then at a track like laguna, it wont be optimum. More than likely, your...
Forum: Porsche 911 Technical Forum 04-03-2003, 04:42 PM
Replies: 44
Views: 4,021
Posted By zanick
I hear you ! the key thing to do is some how,...

I hear you ! the key thing to do is some how, get the gears closer together. sometimes you can gear down , but generally , that doesnt buy you much. in fact. I have a 5 speed with a very tall...
Forum: Porsche 911 Technical Forum 04-03-2003, 03:57 PM
Replies: 44
Views: 4,021
Posted By zanick
yes, 4% if 4th gear was at 145 (which is where my...

yes, 4% if 4th gear was at 145 (which is where my 4th gear is in the 928) would drop the speed at redline to 140.) now, as you accelerate to 145 in that taller , now, 5th gear, how long do you think...
Forum: Porsche 911 Technical Forum 04-03-2003, 02:05 PM
Replies: 44
Views: 4,021
Posted By zanick
you can think about it all you want. the...

you can think about it all you want. the differences are so subtle that you WONT feel it. until you use a little simple physics, you close your eyes to what is really happening with gearing.
...
Forum: Porsche 911 Technical Forum 04-03-2003, 01:20 PM
Replies: 44
Views: 4,021
Posted By zanick
untrue. if you thinik it is so, just because...

untrue. if you thinik it is so, just because someone says it is, you and they are seriously mistaken. think about it!!

re-read my post and you will see that each pro team that show up at at...
Forum: Porsche 911 Technical Forum 04-03-2003, 12:49 PM
Replies: 44
Views: 4,021
Posted By zanick
Probably what you felt was more sidewall flex,...

Probably what you felt was more sidewall flex, Especially on an autocross course, where there is so so many variables. (ie track condition, tire temp, pressures, car weights, (full tank /1/2 tank),...
Forum: Porsche 911 Technical Forum 04-03-2003, 12:43 PM
Replies: 44
Views: 4,021
Posted By zanick
You can beg to differ all you want, but the FACT...

You can beg to differ all you want, but the FACT of the matter is that lower gearing doesnt always buy more acceleration over a section of a road course or drag strip. forget about top speed, thats...
Forum: Porsche 911 Technical Forum 04-03-2003, 12:25 PM
Replies: 44
Views: 4,021
Posted By zanick
WOOOOH. re-read my post first, next, the...

WOOOOH. re-read my post first,
next, the weight advantage or disadvantage of larger wheel, smaller tire, vs larger tire /smaller wheel is negated by the fact that MOST rubber is heavier than the...
Forum: Porsche 911 Technical Forum 04-02-2003, 04:01 PM
Replies: 26
Views: 2,087
Posted By zanick
yes, the only draw back to synthetics is the leak...

yes, the only draw back to synthetics is the leak factor in old cars. Ive seen the same temps on the track with kendal 20-50 as I do with Redline 15-50 and now Amzoil 20-50. driving around town...
Forum: Porsche 911 Technical Forum 04-02-2003, 03:58 PM
Replies: 44
Views: 4,021
Posted By zanick
common misnomer that changing gear ratios by...

common misnomer that changing gear ratios by effective tire diameter, is going to buy you anything. gearing doesnt change HP. HP and more specifically, ave hp to the wheels over the operating range...
Forum: Porsche 928 Technical Forum 03-31-2003, 01:03 PM
Replies: 1
Views: 574
Posted By zanick
225s on the front and 245x50s on the rear, was a...

225s on the front and 245x50s on the rear, was a great combo until I could get the larger rims all the way around.

mk
Forum: Porsche 911 Technical Forum 03-24-2003, 03:50 PM
Replies: 7
Views: 932
Posted By zanick
did he run over one of those new spike strips? ...

did he run over one of those new spike strips?

mk
Forum: Porsche 911 Technical Forum 03-24-2003, 09:50 AM
Replies: 44
Views: 9,875
Posted By zanick
wrong wrong wrong. the NASCAR example shows how...

wrong wrong wrong. the NASCAR example shows how the stored energy of the heavy flywheels can help reduce the losses do to rolling friction of a turn at high speeds. However, it doesnt help a car...
Forum: Porsche 911 Technical Forum 03-24-2003, 09:45 AM
Replies: 44
Views: 9,875
Posted By zanick
No randy, Im not confusing anything here. Ill...

No randy, Im not confusing anything here. Ill say it again, the lighter flywheel will increase the flywheel hp and subsequently, the rear wheel HP. it will effect idle rev and give HP gains to the...
Forum: Porsche 911 Technical Forum 03-21-2003, 04:37 PM
Replies: 44
Views: 9,875
Posted By zanick
Yes, lighten the wheels or flywheel and you will...

Yes, lighten the wheels or flywheel and you will put more hp to the wheels in 1st, a little more in 2nd and not much more in 3rd.

if you are accelerating faster, the HP has to come (or be saved...
Forum: Porsche 911 Technical Forum 03-21-2003, 03:40 PM
Replies: 44
Views: 9,875
Posted By zanick
Hp to the ground will effective be slightly more,...

Hp to the ground will effective be slightly more, as that hp normally would be driving the larger inerta. Usually,engine hp has the flywheel mounted in tests, but the dynos are not testing the...
Forum: Porsche 911 Technical Forum 03-21-2003, 12:30 PM
Replies: 44
Views: 9,875
Posted By zanick
Depending on the length of time spent in each...

Depending on the length of time spent in each gear, you could get an average HP put to the wheels over the engire drag run. If 10lbs off the flywheel gives 25hp in first, 5hp in 2nd and 1hp in 3rd,...
Forum: Porsche 911 Technical Forum 03-20-2003, 03:30 PM
Replies: 44
Views: 9,875
Posted By zanick
Funny, just the opposite was true with the 928S4...

Funny, just the opposite was true with the 928S4 and 928S. the dual disc clutch was 22lbs lighter than the single disc S4 clutch package. Its a no brainer as well to get all that weight out of...
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