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Posted: Sat May 13, 2006 8:49 pm 
Getting Side Ways
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Ride: BA xr8 Magnet ute

Location: Melbourne
VIC, Australia

3.9 is a bit high for me i think. it would be using to much fuel on open highway driving.

I have a Spare 3.9L sitting out in my shed under a tarp atm and was thinking today i might start building that up while its just sitting on the stand? i was thinking of doing everything including

New ported head
bored block
crank
pistons
toughfen up my clutch

and i already have:

Camshaft
springs
zausht and extractors
T5

think its worth it? and how much will it set me back taking in mind i already have:

cam
zausht and headers
t5
thermos
air intake
mpfi
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Posted: Sat May 13, 2006 9:05 pm 
Getting Side Ways
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Ride: 1994 ED Ricer

Location: Perth
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well at least get an LSD. more power through a single spin diff will not improve your time at all!

to be honest if u want to go fast a high 13 will be ur limit for a 6 without spending ridiculous amounts of money.

Your better off building ur motor with strenghtened internals and deep dish pistons etc for forced induction IMO.

Buy an aftermarket computer so u can tune it now and then u can use it with ur turbo too..
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Posted: Sat May 13, 2006 10:10 pm 
Parts Gopher
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Location: Melbourne
VIC, Australia

wat do u guys thing about 4.11s in an EB 5 speed would this be ok as it does not have the short first like thr EA T5 the only reason i ask is coz i can get a complete diff with 4.11s and mini spool cheap do u think it would make my car quicker as i hav 2.77s atm lol
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Posted: Sun May 14, 2006 12:03 am 
Stock as a Rock
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Joined: 27th Apr 2006

Ride: Falcon

Location: melb
VIC, Australia

a 2.92 lsd sounds ideal, but then again i dont know if it exists. if it does i think it would be best but then again i dont know jack s**t

 

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Posted: Sun May 14, 2006 12:37 am 
Getting Side Ways
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Location: Perth
WA, Australia

NOS???
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Posted: Sun May 14, 2006 1:02 am 
Getting Side Ways
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Ride: BA xr8 Magnet ute

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kermey wrote:
NOS???


looking to keeping it in the NA 6 Class
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Posted: Sun May 14, 2006 1:54 am 
Getting Side Ways
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WA, Australia

blackea wrote:
a 2.92 lsd sounds ideal, but then again i dont know if it exists. if it does i think it would be best but then again i dont know jack s**t


fitted to manual EA fairmont ghias like mine :D
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Posted: Sun May 14, 2006 10:40 am 
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EA Fairmont Ghias, 2.97 or something LSD...

As for what to do... well, if you have a big cam, then tune it with an aftermarket computer.


Cheers

 

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Posted: Sun May 14, 2006 5:25 pm 
Getting Side Ways
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Ride: Lincoln LS, MKII Escort, ED

Location: geelong
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later model T5 and a 3.45 LSD?

 

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Posted: Sun May 14, 2006 7:32 pm 
Stock as a Rock
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Posted: Sun May 14, 2006 7:45 pm 
Getting Side Ways
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i have a best 60 ft time of 2.27 in my EA 5 speed with 2.92 LSD, so you should deffinately be able to get your times down if you can launch it harder. My car only ran 16.2 with that 60 ft time, dead stock EA!

I'd go with a 3.45 LSD and some top quality rear tyres, then you will be able to launch with more rpm, that alone i reckon would see you down to 14.5. I reckon the next step after that would be head work.
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Posted: Sun May 14, 2006 7:59 pm 
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Power: 178 rwkw

Location: melbourne
VIC, Australia

If you get stronger engine internals, you could increase the rev limiter. Would bigger injectors help?

 

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Posted: Sun May 14, 2006 8:06 pm 
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Just some handy info for you southy, to help you think about a ratio change.
I'd be thinking about 3.27's, or maybe 3.45's if you are keen. That is IF you keep the EA box.
EA T5 Ratios
1st 3.50:1- 2nd 2.14:1 - 3rd 1.39:1 - 4th 1.00:1 - 5th 0.78:1 FD - 2.92

For comparison...
EB XR6
1st 3.25:1- 2nd 1.99:1 - 3rd 1.29:1 - 4th 1.00:1 - 5th 0.72:1 FD - 3.45

EB XR8
1st 2.95:1- 2nd 1.94:1 - 3rd 1.34:1 - 4th 1.00:1 - 5th 0.73:1 FD - 3.27 (4L's 0wn, teh 5L 5ux0r.....)

....and finally for s**t and giggles....
ED XR8 Sprint
1st 3.35:1- 2nd 1.99:1 - 3rd 1.33:1 - 4th 1.00:1 - 5th 0.72:1 FD - 3.27 (....until you give them decent ratios... whoops!)

EA T5's are supposedly weaker, from what I hear, but I have no definate knowledge either way.

 

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Posted: Sun May 14, 2006 8:09 pm 
Getting Side Ways
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thanks for those specs Staedy. Ill print them out and study them a bit more, cheers
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Posted: Sun May 14, 2006 9:24 pm 
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Ride: 2010 Nitro Blue FG

Location: Melbourne
VIC, Australia

Consider doing some major headwork if you havent touched the head already. For about $1000 or there abouts you can get a ball tearer head which flows like the clappers with new bowls, tested, flowed etc. I got mine for a good price through a good mate of mine. if you're interested PM me and i can give you his number and take it from there if you like. I'll even come down with you if you want. thats how much i stand by his work.

 

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