Hey everyone, quick update. I went to the exhaust shop today and the guy there said I should keep my single 2.5" thats already on there. He said if I go any bigger that it will screw the back pressure. Also that twin systems dont work too well on VL because of the necessary shape they need to be. _____ ____|____ Cheapest mod Ive ever made! Now its time to start tracking down the diff!

VN Heads, Dual Plane Manifold, Crane 286 cam.. the lsit goes on and on.. that cam is only little but will keep it streetable.. i have a feeling you'll have to change the gear ratio to compete with the extra torque he is making from the extra cubes that crank has bought about..

i think the cam and head job is a good idea lololol

Quote: Originally Posted by Epitaph VN Heads, Dual Plane Manifold, Crane 286 cam.. the lsit goes on and on.. that cam is only little but will keep it streetable.. i have a feeling you'll have to change the gear ratio to compete with the extra torque he is making from the extra cubes that crank has bought about.. hey epitaph, I've used the wade 325c cam a few times, which is almost identical to the 286 crane, it has good street manners and ok vacuum, on a 304 VS ute with mild head work, it made 198 kw @wheels. 13.9 1/4 mile. not real quick, but from 137kw to 197kw @wheels for about $1900

bro I think your best bet powerwise would be just the simple mods first, like headers, manifold, carby and ignition... with spending next to no cash for the power gains I think this is the best road for you to go down, for now anyway.. Later on look at things like ratios, if you just want hard acceleration go a t5 with 3.9's, also sets a good platform for future mods

well im about to put vn heads, bigger cam and a dual plane harrop manifold on mine, its an otherwise pretty stock 308 bottom end.. but it will be a completely new car when this stuff is all fitted and running. the efi cars were 165kw from factory, it was the heads that made the 50kw jump in power... combined with a cam, twin throttle gas system and and the dual plane she should hit 200-220kw in a featherweight VC commo... i cant wait then of course theres the trimatic problem Some original photos have not been recovered yet.

So whats the best bang for buck mod that I can do?

Other idea is a s/c..

Quote: Originally Posted by Stable and head job haha

Hey Sinister, let me know how she goes! And whats the 'twin throttle gas system'???

Quote: Originally Posted by Stable Hey Sinister, let me know how she goes! And whats the 'twin throttle gas system'??? ive got all my parts now just need to get the cam and im ready to put it all on, would take about half a day to fit but then i need to get the exhaust done, the single most expensive bit heres the twin gas throttles on the harrop thats going on the top end Some original photos have not been recovered yet.

Stable: mate the first thing you need to do is piss off that trimatic, which I would have to rate as THE WORST box for a daily street commodore, with its crapy 2.35:1 1st, 1.45:1 2nd and no overdrive - come on time for an upgrade. Personally i'd go for the t-5 but sounds like you want to keep it auto (which is fine) so i'd be organising to get your hands on a rooted VN-VP V8 TH700 and rebuild it with tougher internals and a shift kit. Then I'd be looking at a 3.45/3.73 equiped LSD for the diff, AFTER this you can start thinking about what you want to do with the motor be it carby 5L/5.7L, EFI 5L/5.7L, supercharged carby/EFI whatever, but for now the gains you'll get for the money in trans and diff mods far outclass engine mods easily. Think of it like this a VL 5L with a trimatic would need 4.11s in the diff to match the acceleration of the same car with a TH700 in 1st gear & a VL 5L with a trimatic would need 3.55s in the diff to match the acceleration of the same car with a TH700 in 2nd gear and thats just with the TH700! when you put in 3.45s or 3.73s in rear you'll be quicker again while still cruising on the highway at less rpm than the trimatic with 3.08 in the diff! trimatic with 3.08diff @ 100km/hr = 2560rpm TH700 with 3.08diff @ 100km/hr = 1822rpm TH700 with 3.45diff @ 100km/hr = 2040rpm TH700 with 3.73diff @ 100km/hr = 2200rpm

yeah the overdrive is good but apparantly its the weakest of all turbo boxes and not to mention the most expensive to rebuild by far..

Quote: Originally Posted by Sinister yeah the overdrive is good but apparantly its the weakest of all turbo boxes and not to mention the most expensive to rebuild by far.. lots and lots of people out there running the 700s and as long as you keep em cool i can't see how a stock or near stock VL 5L is genna eat one (without manually dropping gears for engine braking and the like that is) and as for rebuilds all 4sp autos cost a fair amount to do

hey instinct, Why r u suggesting to him to part with about $3k(buying "rooted" T700, labour/parts, diff/gears/lsd) and to pretty much acheive nothing? There's nothing wrong with the trimatic for street/mild use. Considering the T700 is twice the size, he's gonna lose power going thru it. with stable's car the way it is 100kph @ 2700 rpm (3.08:1 ratio and trimatic) ur suggesting T700 with 3.7 which is 100kph @ 2450 rpm (where did u get 2200rpm from?). Spending $3K to drop ur revs about 250 rpm @ 100kph, and to lose a bit of power? Stable was asking for cheap power increases for now.

buy a t350

my plan is to drop a VT roller 355 stroker in my calais and convert back to carby currently i have an NA 6... what exactly do i need to change / convert to do this? And typically, how much money am i looking at??

Quote: Originally Posted by DasBlitz my plan is to drop a VT roller 355 stroker in my calais and convert back to carby currently i have an NA 6... what exactly do i need to change / convert to do this? And typically, how much money am i looking at?? if u go new, them motors are worth like 6500, then u can sell off the banana manifold and just get a harrop manifold then the carby, another 1500 or so for them two....

Quote: Originally Posted by bigtoe hey instinct, Why r u suggesting to him to part with about $3k(buying "rooted" T700, labour/parts, diff/gears/lsd) and to pretty much acheive nothing? if you read my post in its entirety you�ll soon see why I suggested the TH700 but just for you I�ll outline the two main points again 1. the TH700�s ratios would make for a faster accelerating car verses the trimatic 2. the TH700�s overdrive would allow for shorter diff gears (making the car accelerate faster again) while still retaining good highway rpms. Quote: Originally Posted by bigtoe There's nothing wrong with the trimatic for street/mild use. Considering the T700 is twice the size, he's gonna lose power going thru it. the power loss wouldn't even be noticeable considering how much harder the car would go because of better gearing Quote: Originally Posted by bigtoe with stable's car the way it is 100kph @ 2700 rpm (3.08:1 ratio and trimatic) ur suggesting T700 with 3.7 which is 100kph @ 2450 rpm (where did u get 2200rpm from?). Spending $3K to drop ur revs about 250 rpm @ 100kph, and to lose a bit of power? Stable was asking for cheap power increases for now. dunno what formula your using but just in case mine was incorrect i went out for a ride in a mates VN calais with a TH700 and 3.73s in the diff today to clear this up and guess what - it was revin at just over 2200rpm@100km/hr. There is a reason why holden ditched the trimatic and picked up the TH700... maybe you should catch on Some original photos have not been recovered yet.

Quote: Originally Posted by DasBlitz my plan is to drop a VT roller 355 stroker in my calais and convert back to carby currently i have an NA 6... what exactly do i need to change / convert to do this? And typically, how much money am i looking at?? i have ask why the hell you'd want to do that!? i have the VT roller stroker in my VL (still EFI) and i love it why buy an injected motor just to pull it apart and make it carby, just build your own carby stroker