N/A 6cly 4.0l Vs Gen lll

[santoitaliano]

pre gen3 you have a hope... gen3 or 4 forget about...

accept reality... we are comparing a 5.7l v8 to a 4l 6.... not to mention the year difference between eb and vy?

i suppose on the positive side you do have the weight advantage.. still doubt it though.. being auto esp..

[EB Pete]

whats so bad about having an auto anyway? i know they change a bit slower and unless you have a hi stall matched to your car they can be a bit bad, but you have no chance of missing a change. (thats all i could think of at the moment). and do you manual owners do flat shifts or do you get off the throtle a bit when changing? just interested.

[santoitaliano]

manuals loose less power throughout the driveline. also have an extra gear ratio...

[EB Pete]

yeah but................................. fair enough.

[heckaz performance]

Each shift with a manual costs time.
And they are not on full throttle all of the time unless they make a flat shifter (igniton cut for shifts).

Damn, hes got mods (the holden) good luck, but hes probably got 20kw or more over a stocker.
But hopefully it has a lame high diff, and is off song over the line.
Yours should give good rpm over the line with 3.9's.
What size is your stall?
Your combo has the potential to make good power (eg 170rwkw+) tuned in my opinion.
Good luck, should be a good (pretty even) race!

[EB Pete]

yeah like the V8 supercars have in them? hopefully mine gets to the 170rwkw area. don't know what size the stall is yet cause i still have to work out my real compression ratio (cause i'm still waiting on the head), then send all the details away. at a guess i think it will be either 2400rpm or 2800rpm and the cam is 'said' to start at 1800rpm. but yeah not 100% on the 3.9's yet. might go 3.7's just for a little bit better fuel comsumption.

[stiddy]

A mate of mine has a SV8 5.7L VYll auto, and ugh.. makes 195rwkw, but also weighs as much as a Sherman Tank.. its slow to get moving.. but once up in the revs it really pulls like a train.
My XR6 5speed, we have had a couple of runs.. if I pin the launch, ie- it actually gripping when I drop it from 4000rpm, I get car lengths ahead of him but by about 140ish km/h hes back next to me.
If we both granny it off the line and then jump on it, we sit level till about 90-100km/h and then he starts leaving me..
I rattle off 14.9's and have 137rwkw.. Now that ive got the diff gears done, he refuses to race me.
Id say EB Pete your in with a good chance. but it comes down to the manual vs auto thing. (when i change gears, the accelerator stays on the floor and the clutch only gets used for a split second)
Can a stalled/shift kitted auto match a crazy arab behind a manual dropping it from 4k? lol

[BOOSTDEF]

Mate with your proposed mods, and a proper tune(i assume you are going to get a standalne ecu???), you will be killing that 170rwkw mark, i think a lot more.

You will eat a VN-VT SS manuals ***... seriously. Stock EF/ELs can keep up with VN 5.0s. Whats that, about 112 rwkw??

Gen 3s?? well when i was running only 6psi, wih stock everything, i kept up with one. And that would be flat out 160rwkw.. But a bigger mid torque curve.

Get your launch and youll eat him i reckon. But your gonna need a bloody good tune and a bloody good start. "Gen3s are known to get off the line too ya know lol"

[EB Pete]

ok i'll try work out out what i've got so far and what i'm still to get.

Block dropped in acid, board and honed out .5mm and 4 thou taken off the deck
Crank polished and balanced bottom end
ACL race series .5mm oversize pistons
Crow vernier cam gear, xr6 springs and custom ground cam part number 2222543
Head work(still to be completed but said to of got flowin at 400hp+ on intake)
head shaved 11 thou but getting another 30 thou or so off.
Intake manifold worked (cut the lips out of where the pipes come into the bottom bit, and cleand up all around the throttle body.
Pace maker extractors and 2 1/2 inch mercury system
Cold air intake and a bit more
Thermo fans
Full rebuid of BTR 4 spd with valve body drilled out, adjustable shift and Hi stall.
New uni's and either 3.7's or 3.89's LSD
And hopefully a ms2 to run it all.

think thats it. (and all in the space of about 3 months, so i'm broke)

[BOOSTDEF]

definately go the 3.9s.. dont worry about economy as it will be ИИИИed already ;)

Ms2 will be good. Also, you might need a bit more fuel in there so definately add a rising rate fuel regulator.

I think if you then worked on weight and traction you may get him good.

Theres always NOS ;)

[Stav]

You will smash the gen 3 to 100kays. Those things dont get going until 120kmph . I saw a 5.7 litre gen 3 monaro managing 14.5 only at wsid. You have a good chance

[snortingboost]

Strap a turbo onto the side of it, then you'll be saying goodbye to him and all the other moded gen's. Works well for many.

[ON_DUBS]

Originally Posted by snortingboost

Strap a turbo onto the side of it, then you'll be saying goodbye to him and all the other moded gen's. Works well for many.

mmm turbo is definately the way to go with the 4lt I6 if you cant get the power you want

[Rollin]

mmmmmmmmmmmm turbo.....mmmmmmmmmmmmm....

[EB Pete]

well i aint gunna smack a turbo on it......at the moment anyway. well i made the mistake of actually challenging him to the 1/4 mile today. guess i just got sick of him saying he will smash me! so i'm not sure if i will beat him but it would be great if there was an e series falcon out the which could? anybody interested? at willowbank in a few weeks.

[santoitaliano]

if you can find it go the 3.7... i6's have plenty of torque so make use of it..

[MADED-6]

hey mate hope u dont wanna thrash the motor b4 u run it in otherwise u'll f#@k it good. give it atleast 500k b4 u give it a good thrashing mate coz ive heard of storys of motors sh#@ing themselves because they havent been run in. but good luck with the calais anyway hope u get him i hate ppl that bag ur car and say they will kill u i mean seriously u have a 5.7l and u wanna run me in me 4l even if he does beat u tell him to check his oil to make sure it hasnt munched it pos gen3's.

[EB Pete]

just a quick question with the diff. i can just take my rear axles out and replace the 'centre' with a different ratio can't i? i did it on me mates ED but he only changed to LSD and kept the same ratio. is it possible to go to 3.7 or 3.89 that way?

[EB Pete]

yeah don't worry about the running in. i have to sit on about 1200rpm for 10/20mins for the cam. 500km at different rpm and load to bed the rings in then change the oil and oil filter. and i'm not sure about the rebuilt gearbox yet but i aint gunna be treating her bad after all this thats for sure.

[FGX-351]

Originally Posted by EB Pete

well i aint gunna smack a turbo on it......at the moment anyway. well i made the mistake of actually challenging him to the 1/4 mile today. guess i just got sick of him saying he will smash me! so i'm not sure if i will beat him but it would be great if there was an e series falcon out the which could? anybody interested? at willowbank in a few weeks.

if its at willowbank im there dude! just pm me closer to the actual date cause i have a bad habbit of accidently forgeting about these things:(

[santoitaliano]

Originally Posted by EB Pete

just a quick question with the diff. i can just take my rear axles out and replace the 'centre' with a different ratio can't i? i did it on me mates ED but he only changed to LSD and kept the same ratio. is it possible to go to 3.7 or 3.89 that way?

Yes, you can. But you would want to have a bloody good idea on what you are doing, because as soon as you go to change the crownwheel and pinion you are gonna need to muck around iwth spacers which need to be accurate to within 3thou and set backlash correctly...

get a pro to do it, unless you are extremely confident.