FASTFATBOY

iTrader: (23)

I got 325/50 drag radials, every suspension part known to man with 465rwhp in 4L60E equipped 3800lb car. This thing will DESTROY the tires, even from a 30 roll.

At the track it pulls 1.58 60fts.

Any ideas? ANY input is appreciated.

David

TwoFast4Lv

iTrader: (8)

What TQ arm and settings?

I was moving my car from one Bay to the next and desided to give the new MADMAN setup a hit.

I gave it a quick hit from here. . .



The front end just about came off the ground before it started to spin

The Wife FREAKS when ever I play in front of the shop

ABA383

iTrader: (1)

There's alot in the set up and tuning of the suspension...I don't know what you've done to the car after installing the suspension parts...I have a great local shop that squared the rear, which was 1/2" out, set the pinion angle (mine is 1.5 deg negative with a digital angle finder), set the LCAs in the relocation brackets, scale the car with 4 quality digital scales, and set the preload, and ride height...Then he went with me to the track to help line the car up and change and record the shock settings and tire pressure...my limiting factor is not having a drag-type rear sway bar...Currently I have the Spohn 1" chrome moly factory style rear bar, but am going with the Spohn drag bar...which will help really fine tune what I have...

I can say that all of this work has paid off on the street...It used to blow the tires away all over the place, but now, even with re-stalled 4000 Vig (from 3600) it doesn't lay out the rubber like it used to on the street...it pulls out of the hole alot harder, doesn't spin as much and really feels "good" even when running at 22-23 psi on the street...If you haven't tuned your suspension, its definitely worth it...

...one of the biggest things I noticed was with the rear shocks...With the QA1s set on 8 they really help drill the tires into the ground...

--Alan

jason02Z

iTrader: (10)

when driving on the treet with tires like that u need to do a prery good burn out just like at the track..just to get a fresh patch, driving on the street can realy **** with ut tires. i have stock suspesion and 275 nittos and they need to be wormed up before i can get on it or they spin at 30 no prob

FASTFATBOY

iTrader: (23)

I am trying to sweet talk a guy I know through a friend to set it up for beer and a BIG ribeye.....he hasnt bitten as of yet...he knows what the hell he is doing for sure.



The rear is squared in the car.

I did scale it, here are the weights

No driver

LF RF
992 881

LR RR
743 854

With driver

LF RF
1099 913

LR RR
880 900


I have for suspension:
Tube K member
Hal single adjustables up front.
Global west frame connectors
Spohn chassis mount race tq arm
Global west rear drag springs
Koni D/A's in the rear
LCA relocation brackets in the bottom hole.
Heim ended lower control arms
Has an airbag in the right rear
Stock rear swaybar
No front swaybar.
Pinion angle at -2

The tires are on 24 psi, how low can I go on the street? I have went as low as 21 but the marks they leave indicate that the center of the tire is not on the ground.

Do I need to cut the stock rear springs and put them back in the car?

I also have a set of Global West rear springs with height adjusters

David

RAGENZ28

iTrader: (5)

Try taking the keg of beer out of the passenger seat.

FASTFATBOY

iTrader: (23)

Hell that will make it worse!


David

RAGENZ28

iTrader: (5)

Start with the basic.

air pressure

shock settings

pinion angle

lca location

torque arm location

anti roll bar preload

Dave J

iTrader: (2)

looks like the frontend didnt just come off the ground but it came off the car too

TwoFast4Lv

iTrader: (8)

LOL yeah it is all at the paint shop getting ready for the Shoot out. With all the Blu LY1 cars showing I had to make it stand out

RAGENZ28

iTrader: (5)

You want your car to hook on the street do what I did, put a 33x16.5s on it, I used to leave wheels up at the stop light without even heating the tires

FASTFATBOY

iTrader: (23)

I really dont see where 465rwhp should be a problem on a 325/50.....I know I will never be able to mat it like at the track, but damn its like I am ice skating.


David

ABA383

iTrader: (1)

I'm going to have Tyson from PAF look at this thread and look at your scale numbers...I'm sure he can tell you what he thinks based on the scales...

--Alan

RAGENZ28

iTrader: (5)

Have you checked all the basics?

List all of your chassis settings and suspension pieces

FASTFATBOY

iTrader: (23)

All suspension parts are in post 5.

Pinion angle-2

Have run the gamut on settings and tire pressures....still no dice.


David

RAGENZ28

iTrader: (5)

What hole is the torque arm in?

Your car looks lowered if you can I would raise the torque arm up one hole.

flyinZ

iTrader: (15)

Subscribing..

slick1851

Why do you have KONI DAs?

FASTFATBOY

iTrader: (23)

Why not? Alot of drag cars run Koni double adjustables in the rear, Global West sells them.

David

slick1851

Never thought of using them really for drag racing