inactiveuser1

My old Plymouth Duster street car ran 10.90 to 11.0 at 122-125mph range 60 foot was 1.53.
1/8th mile ET was 7.05
Its hard to get a good ET into the high 10's if the 60 foot isn't good.
Take a look at the new 997 TT 11.0 in 1/4 mile 1.60's for 60 foot time.Cars have to leave hard to get the lower ET where our 928 just don't leave that hard for obvious reasons.
Tims car has the MPH to run 10's but without leaving hard and without a good 60 foot its hard to make up the time to get into the high 10's in the 1/4 mile.
I think what Brett is trying to say is if it don't leave hard the mph would have to be higher and make more power on top end to compensate for the lost ET off the starting line.
A good example is the car making alot of power on top but just braking into the 10's is:
http://www.dragtimes.com/Porsche-911...lip-21892.html
No matter how you look at it Tims car is one of the fastest 928 street cars or the fastest 928 street car out there with a 928 motor.

Jon B.

I thought Brett was saying that in order to run tens you had to trap 150+?

I agree that the car needs to hook to get the 60ft. down, and then in turn it'll get that ET. The trans. is a bit of an issue as well, as Z was pointing out.

inactiveuser1

I thought he was talking of to get 1/2 second more ET since the MPH is upper 130's he'd have to get more MPH to gain another 1/2 second ET from where he is if he can't leave any harder.Unless he means a true 10.0 and not just breaking into the 10's.At least thats how I took what he meant lol.
150mph thou a car would be into the 9's in the 1/4mile if leaving hard.
You're right thou on running the 10's with the MPH if the car would hook up harder but then things could break.
Once it hooks up thou it runs hard like somone else was talking on the 50 to 70mph times.

smith 928

Instead of using a Gtech... Put it on a real drag strip and then see what it will do. That is the real test .

hacker-pschorr

I guess you missed this thread. I must have posted this in-between one of your many bannings.

https://rennlist.com/forums/928-foru...a-loggers.html

All The Best!!!

Brett928S2

Hi

You are absolutely correct....

I didn't think I would have to explain as I (wrongly) assumed most owners would understand....

There is a saying in Pro Drag racing which applies here...

"You win or lose on the line"

What that actually means is two things..

1. Reaction time in the race to WIN...which doesn't apply here as we are talking times not racing another car....

2. Launch ! you MUST launch very very hard and any 928 just cannot do that.... and that does apply here...

When I ran my UK 1/4 Mile record run.... (on a track not a G-Tech) I had the power to put well over 1000 hp down on the line ...and COULDNT !!

The car just sat there with absolutely no traction whatsoever just wasting rubber... I kid you not , I did not move an INCH !

So I dialed in a 2 second delay into my controller and launched on standard 928 power and it worked....

And I now hold the UK Record... with proof....

The point I am making is that to compensate for lack of launch you must have a higher terminal speed...and to run a 10 thats around 145 to 150 mph....

And to all those people saying I dont know what I am talking about....

I did use to be a Crew Chief in Top Fuel and I do hold the UK 1/4 Mile record.....for 928s

How about you ?

All the best Brett

smith 928

Imo000

It's possible. I've pulled a few 1.8s on nothing more than regular stock sized street tires (225-50-16). I think getting just the right amount of tire spin at the launch is the key for a short 60 footer but it's so easy to screw it up that it's more of a luck than anythign else. Sure as hell, side stepping the clutch at 2700rpm is not easy on the clutch either.

Brett928S2

Hi

You are right..on my record run I had a 2.402 60 foot time... even though I had a 0.835 reaction time...

That was on 18 inch wheels with standard road tyres with 274/45/18 at standard pressures with a 2.35 diff and LSD, which was all set up for my 200 mph plus runs...

If it had been on 16 inch wheels with drag radials and a higher diff it would have run a 12 but I seriously doubt an 11...

All the best Brett

tv

copy whatever this guy is doing

http://www.youtube.com/watch?v=oDA2m...layer_embedded

Z

And this one:
https://rennlist.com/forums/928-foru...-111-88-a.html

Every test that I've seen has showed the same thing. The G-Tech is close, but in every instance, the car was actually a little quicker than the G-Tech had indicated.

smith 928

blown 87

Wow, drag racing must really be different over there, over here your reaction time has ZERO to do with your 60 FT times or your ET.

Over here you can have a 10 second ET and a 1.5 second reaction time and get beat badly by a guy running a 11 second ET and a RT of .005, in fact you will get beat by almost a half a second.

Those two have nothing much to do with each other until you get in to deep staging and the finer points of it, that is basic stuff.

Brett928S2

Hi

The point was about my 60 foot time...not my reaction time and yes it works the same way here...I COULD have sat on the line staged for 10 seconds if I wished....

I was making the point about traction and diff ratios and tyre/wheel sizes....

As a matter of interest I also have a G-Tech Race which I gave up using as it was too inaccurate.... so when someone said in this thread ahh but generally G-techs underread , I laughed as that was not what someone said here when I ran a 2.9 0 to 60 mph on a G-Tech... They said precisely the opposite....

All the best Brett

inactiveuser1

Now there is American Muscle that is a good drag car and handling all in one.
On the road course the new 2011 ZR1 even took on the 997TT and beat it.
Copy what he is doing some already have with a GM motor in a 928
638hp supercharged ZR1's kick a$$ right from the factory.