BC

You should be able to hang the 928 out on a corner with more solidity than him. If the street car is twitchy, then his race car, while probably at a high grip level, has to be even more twitchy. You should make him change his line mid corner or something, so you can get around him as he has to slow a bit to regain control.

His car has a total of 200lb foot or so, with that SC right? Well - how much do you have? 300? 280?

Lose some weight off your car or something. Add more tire.

Have you ever driven an S2000? Even with the superchargers, its

Floor it at 2k rpm. Wait, Wait, Wait GO! He may have moved his Vtec engagement down on the rev range - be even so, it is a very peaky car.

My point (and like I said, I will not debate your gearing stuff - nobody really can follow you, but I have a hunch you aren't 100% right when you argue on this tract) -- is that S2000 has about 1000rpm of real near-peak power. You have at least 2000rpm.

Anyway, I'm out. Just beat that damn S2000

mark kibort

It seems that i do hang with him at corners like turn 8 at thunderhill and 6 at laguna. in fact, when we bumped, if i hadnt been able to out brake him going into turn 13 at t-hill, i wouldnt have got myself in a door to door battle, when my door got the short end of the stick .

anway, he sticks like glue and is a little faster through the tight stuff.

he is way off in the engine torque, but to explain in simple terms why that doesnt matter, its because he is shifting at 50% higher rpms and needs 50% deeper gearing, this is the point of ALL my arguments on HP/torque. Believe me, its correct. at any speed, if you are putting down the same hp, you have the exact same forces pushing you for acceleration and the exact same torque at the rear wheels if the tires are the same diameter. just basic stuff here!


Here is where you get yourself into issues with your thought process. (and yes, i have driven a S2000 at the track. its really funny. your right, no torque at all at the lower rpms, and it sounds like it is dying when you drive it as you should, from 7000rpm to 9000rpm!!). You drive the car from 7000rpm to 9000rpm as the S2000 is raced and then you are in the meat of its HP curve, as i am from 6500rpm down to 4500rpm. the only difference is that his car sounds like it is getting beat to death! (and yes, he has 50% less torque, but 50% more rpm, but in the end, we are near the same RWHP over our operational ranges). so , yes, i have about 1500rpm of near peak power and he has about 1000rpm of peak power but his gear ratio keeps him in the sweet spot to equal things out, plus he does have more hp than i do now too! (last dyno i had was 298rwhp)

mk

hacker-pschorr

mark kibort

Brendan,

I made this video just for you . (clipped from the S2000 supercharged, incar) It shows reality meeting theory.

http://www.youtube.com/watch?v=ZFgu5xUIu7U

Take a look at two laps at thunderhill when the S2000 just put on the blower and was making 310rwhp vs my 310rwhp, but 300lbs heavier car. There are some areas where the S2000 has trouble coming off the turns, but really, they are few and far between. In fact, if you look at his dyno run vs mine, i would say the average HP over any gear range was pretty close. Just take a look at my dyno run here. It is the most recent dyno at 300rwhp, but we think it was strapped down too tight. ( i wont know for sure until i go back) however, you can see the average HP from 4500 to 6500 is about 275rwhp ave.
If you look at the S2000 supercharged hp curve, you can see from 7000 to 9000 the average is near the same, probably a little higher. (especially today, since he is pushing more like 330rwhp now and his average is more like 300rwhp/ave)

watch near the end of the video where the 550hp camaro shoots by with a good run, but its not enough to give him the checker in the end...........

MK

BC

My Dewalt Drill has more ftlbs than my Honda S2000.

Thats what I think every time I drive it.

Don't get me wrong, if I keep it on "full boil" it will move - move enough to pass a normal 996 from 40-80. But for all I know, he may not have shifted out of 6th.

dprantl

Haha, 139lb.ft torque. That must be fun to drive...

Dan
'91 928GT S/C

mark kibort

actually, just found out by watching his video, that he is pretty close to my gear spacing, and overall a little lower. (kind of like 2.54 on the 928)

so, with his peaky HP curve, that does provide some advantage to me, but im down on power anyway, and thats why it is so close. his rpms are from 6500rpm to 9000rpm where he can get below 250hp. in the end, we are pretty darn close. (did you see the max torque being less than 200ft-lbs!)

Hp baby! (and better said, HP-seconds)

mk

mark kibort

Near the same rear wheel torque at any same vehicle speed, and thus the same acceleration forces. The big differnce is that it sounds like its going to blow!!!!


mk

mark kibort

actually, this isnt Rylan's Hp curve, it is a near 330rwhp curve from another street S2000. rylan's car started out at near 250rwhp, (NA) , so the curve is a little more stout.
mk

dprantl

I don't know... I just find it fun to be able to floor my 928 at 2000 RPM and be able to wiggle its *** on 265/30-18 tires with the amount of torque I'm making, instead of downshifting 2 gears.

Dan
'91 928GT S/C

mark kibort

Im with you. trust me, there is a reason i drive a V8, and that is one of them, besides the song it sings. I would get bored of the 4 banger song by the first shift! (i dont care how much power it has!)

i can listen to speed GT V8, V10 or even ALMS RSR 6 banger sound all day lone!

mk

mark kibort

Im with you. trust me, there is a reason i drive a V8, and that is one of them, besides the song it sings. I would get bored of the 4 banger song by the first shift! (i dont care how much power it has!)

i can listen to speed GT V8, V10 or even ALMS RSR 6 banger sound all day long!

mk