3.9lsd Finnaly

Age182 · 14-10-2006, 04:02 PM

WOOO

at last i got 3.9lsd fitted this morning :the_finge

last calder meet she ran a SH#T 15.6 @ 89mph with abit of wheel spin

next time i go ill let the tyres down to 20psi n let her rip dwn the track with the 3.9s
acceleration is SSSSSSSSSSOOOOOOOOOO much better she revs so much quicker in 1st speedo is out by 25km/h at 100km but neways
next up is stage 2 shift kit n a 3000rpm stally :Up_to_som

Damo · 14-10-2006, 04:11 PM

good stuff! i've got 3.7's and a 5 speed the way it picks up from down low in any gear is awesome. Standard diff gears suck! :P

HSVETAR · 14-10-2006, 04:49 PM

Sweet as man....... WIll be good to see the difference it makes on the strip.

SVT8 · 14-10-2006, 04:56 PM

good stuff, have you noticed a difference in fuel economy?

Age182 · 14-10-2006, 05:03 PM

not really the only thing that effects fuel econ is throttle posi even b4 i had the gears in 3rd at 3000rpm inst l/100 in on 9 on the free way
now with the 3.9s it sits on 2400 in O/D and cruises nicly around town is just like normal

Jason[98.EL] · 14-10-2006, 05:09 PM

was it a single spinner before

im about to fit a 3.45 lsd to my el

if all checks out at my diff place

so im hoping i will beat my 15.46 1/4 mile

im looking for high 14s with it but i have to learn to get the revs up for it

jason

Psycho Chicken · 14-10-2006, 05:42 PM

$1 to whoever can tell me what a stage 2 shift kit is and how it's different from a stage 1.

-jjM- · 14-10-2006, 05:53 PM

add 10 zeros to that figure and u have a deal....

Age182 · 15-10-2006, 06:54 PM

:sm_headba

EB Pete · 15-10-2006, 07:48 PM

Quote:

Originally Posted by Psycho Chicken

$1 to whoever can tell me what a stage 2 shift kit is and how it's different from a stage 1.

maybe instead of just doing the electrical side of the shift, you do both electrical and hydraulic

_2:

pete j

Walkinshaw · 15-10-2006, 08:12 PM

Quote:

Originally Posted by Psycho Chicken

$1 to whoever can tell me what a stage 2 shift kit is and how it's different from a stage 1.

about $300 in braging rights

mcflux · 16-10-2006, 12:51 AM

about $300 in chiropractic bills?

needfordspeed · 16-10-2006, 02:08 AM

Quote:

Originally Posted by Walkinshaw

about $300 in braging rights

U dA WinNaH!!!

SupahStah · 16-10-2006, 11:04 AM

Quote:

Originally Posted by Age182

WOOO

at last i got 3.9lsd fitted this morning :the_finge

last calder meet she ran a SH#T 15.6 @ 89mph with abit of wheel spin

next time i go ill let the tyres down to 20psi n let her rip dwn the track with the 3.9s
acceleration is SSSSSSSSSSOOOOOOOOOO much better she revs so much quicker in 1st speedo is out by 25km/h at 100km but neways
next up is stage 2 shift kit n a 3000rpm stally :Up_to_som

I went for 13psi in the rears :P Drop the clutch and no wheel spin, but I warmed them up pretty well ;)

problem was, top speed at about 146.5km/h.... well I was fishying a little bit... specialy whn i got off the accelerator... Thaught I was gonna go for a spin :o lolz

GL for the next time

OED666 · 16-10-2006, 11:56 AM

i wouldnt go 13psi... thats pretty dangerous. 18-20psi is probably the lowest and safest you could go to. i have chirped 4th on my 17's (235/45/ZR17) with 20psi.

SupahStah · 16-10-2006, 12:53 PM

Yeh, it wasnt the safest trip down the strip... Specialy top end. Prolly shouldnt have gone too much lower than 15-18psi... It was good top end with that.

LTDHO · 16-10-2006, 01:19 PM

If you go too low then you will have less tyre on the track.

Anyone raced a manual E-series down the 1/4 with 3.9's?

OED666 · 16-10-2006, 01:25 PM

i have, 3.9's and currently 4.11's

Walkinshaw · 16-10-2006, 03:31 PM

4.11's should be good for 110mph trap anyway

OED666 · 16-10-2006, 03:46 PM

Quote:

Originally Posted by Walkinshaw

4.11's should be good for 110mph trap anyway

at 6000rpm...

jonbays · 16-10-2006, 03:58 PM

the funny thing with drag racing is the quicker you get the lower the TS.

With a lower ratio diff you get to the end of the quarter quicker and your TS can be lower. head to head with reaction time differences it can be strange. Racing my mate useless I can be in front at the end of the quarter with a higher TS but lower et. He runs 3.73 and I run 3.45 gears. 4.11 would be good for a V* that can really rev but a six might run out of steam 3.9's sound better to me.

Walkinshaw · 16-10-2006, 04:01 PM

Quote:

Originally Posted by OED666

at 6000rpm...

50shot of N20 and prove it

Walkinshaw · 16-10-2006, 04:02 PM

Quote:

Originally Posted by jonbays

the funny thing with drag racing is the quicker you get the lower the TS.

With a lower ratio diff you get to the end of the quarter quicker and your TS can be lower. head to head with reaction time differences it can be strange. Racing my mate useless I can be in front at the end of the quarter with a higher TS but lower et. He runs 3.73 and I run 3.45 gears. 4.11 would be good for a V* that can really rev but a six might run out of steam 3.9's sound better to me.

Match the gears to weight, max power RPM, rolling diameter and target trap speed.

Age182 · 16-10-2006, 08:46 PM

im pretty annoyed still all my mods so far and it was only good for a friken 15.6 i could hav gotten it to about a 15.5 but still compared to other Eseries cars with similar mods goin faster just shits me

Age182 · 16-10-2006, 08:48 PM

im pretty annoyed still all my mods so far and it was only good for a friken 15.6 i could hav gotten it to about a 15.5 but still compared to other Eseries cars with similar mods goin faster just shts me

Age182 · 16-10-2006, 08:49 PM

im pretty annoyed still all my mods so far and it was only good for a friken 15.6 i could hav gotten it to about a 15.5 but still compared to other Eseries cars with similar mods goin faster just shts me
wit the 3.9s ill b shatterd if it dusnt do a 15.0 or 14.9 because she pulls so much harder n gets to 3rd quicker, third being 1:1 ratio the Mph should pick up heaps unline b4 she was hitting 3rd about 1sec b4 the line :S swell see wat happns next

mcflux · 17-10-2006, 11:59 AM

That's the tradeoff with a shorter diff. You get more launch but lose a bit of oomph at highway speeds.

For example, compare planting it at 100kph with your old diff, to planting it at 100kph with your new diff.

Mine is all launch launch launch now, being 4.11s and 3000rpm stally. Overtaking at highway speeds could be embarassing if the other car decides not to let me pass.

(rambling now) I remember being in a 351 XD once. It was an auto with 2.77s. It was slow as off the line, but at highway speeds it woke up and could really punt around hard.

Age182 · 07-11-2006, 10:02 PM

Still Not Happy Jan!!
Ran Her at Calder Last Friday to see what i could do with the 3.9lsd not much diff.
15.36 @ 91mph compared to 15.6 @ 89mph... i happy in a way she ran consistant 15.3s out of 6 runs all night
ne one with similar mods care to share ne tips and or what times your all running???

1TUFFUTE · 07-11-2006, 10:29 PM

Quote:

Originally Posted by Age182

Still Not Happy Jan!!
Ran Her at Calder Last Friday to see what i could do with the 3.9lsd not much diff.
15.36 @ 91mph compared to 15.6 @ 89mph... i happy in a way she ran consistant 15.3s out of 6 runs all night
ne one with similar mods care to share ne tips and or what times your all running???

have you had your car weighd at all bud?? It looks PHAT

:

Age182 · 07-11-2006, 10:44 PM

lmao your not the first person to say that yea she is abit PHAT But i ran her with out the stereo system i should get it weighd tho