Mods to get 200kw@engine for Vx Ecotec (no forced induction)

[y-b-jls-4]

I'm intrested to know what modifications I need to get for my SII VX S-Pack manual to achieve 190kw to 200kw at the engine without having to spend a fortune. These were some of the things I had in mind:

Full exhaust system

SS Inductions (Growler) Cold Air Intake System or FIT type s S/C v6 cold air intake which ever one is better

Roller Rockers

Laser Cut Heat Shield

81°C Cooler Thermostat

[MaN|aC]

stroke it

anyway with all them mods you may get up to 170kw at the fly

[VSIIBerlinaL67]

.camshaft.

[SICK SS]

nos but thats a chemcal supercharger other then that good luck

[STEALTHY™]

stroke it

anyway with all them mods you may get up to 170kw at the fly

you do know there standard to 165kw?

The exhaust alone will free up maybe 10-15.

[aza1187]

if you get a top class performance exhaust you will easily get a 15-20kw gain. what more could u ask for??

[ephect]

for starters, deburred plenum (maybe modified plenum) ported intake and matched ported heads for nice free-flowing breath in.. mild to large cam.. bored cylinders couple thou, for deep lungs, then tuned extractors, and 2.5' zhorst, for the breath out.. now if that dont get u close to 190-200rwkw.. ur most likely ur gonna have to stroke it! with a lil of the above

[sircruisealotVS]

you do know there standard to 165kw?

The exhaust alone will free up maybe 10-15.

pffft, hahaha, where do you come up with that one??
a VT s-pac with 165kw standard?? try 147kw man.....even up to the VY the most the s-pacs put out was 152kw.

edit - may as well answer the threads question while im at it.
the mods you mention getting would make a very small difference, most gains would come purely from the roller rockers and you might make 160-ish at the fly.
to make 200kw you'd definately need to open up your engine, no amount of bolt-ons will get you there.
id say a good start would be a considerable sized good cam, ported heads and raised compression and a good kalmaker tune. after that you'd be around 180-190kw at the fly, with the rest of your bolt-ons.

[STEALTHY™]

The figures i looked at said 165. Obiously being the same as a 5L it'd stick in my head.

[enhancedss]

380hp shot of NOS, and yes if tuned correctly the engine will last, ive proven this years ago, approx 5 years ago......and still has the original engine still.

the only downfall, is 5 shots out of a bottle, and ur nights over, back to reality 100rwkw.

But it all depends on the budget at hand, and what u want from the car.

[1991_Vn2nV]

The figures i looked at said 165. Obiously being the same as a 5L it'd stick in my head.

Dunno what figures you looked at, but every other figure out states otherwise...147kw at the flywheel for VS/VT, 152kw from VX onwards.

[pumba]

yea they were only 152kw at the fly in the VX. as said, to get those figures out of a VX ecotec, u'd most likely have to poer her up and tinker with its ticker... give it a cam, rolloer rockers, while your at it, full bottom end rebuild aswell

then get your T/B bored out aswell as manifold, custom plenum, iridium plugs, big leads, CAI, K&N, a good flowing exhaust % extractors and u should be at your figure... plus abit more

[Jesterarts]

How much gain can you get from Iridium plus with some 9mm leads?

Also will a bigger TB say a 69mm or sumfin make much difference in power?
I know the throttle will be more responsive but any more ponys?

Atm i got:
CAI, Headers, 2.5 Zorst, 1.95:1 RR and de-combed MAF.

Im keepin it pretty basic as u can see...

Next on the list
3.73 LSD, Plugs, Leads n maybe a TB if it makes much difference...

Cheers

[knowledge_is_power]

Studies have shown that Iridium plugs help to regain lost hp if your spark system is lacking. In N/A applications, if your coils, leads, and plugs are in tip top condition you wont gain any benifit. This has a lot to do with how spark plugs work and the principle behind iridiums. But as most people like myself have a car with the coils quiet a few km's and years old then you may notice a restore of power, depending on how bad it was, of about 3hp.

Jezz

[Jesterarts]

Cool cool, thanx...

[Malus]

What is the differance the gives a VX 5 more kw's than a VT?

[ephect]

intake manifold has been modified a lil to give extra kws

[sircruisealotVS]

also think they changed the pcm to something that could process a little bit faster too....or maybe that was the VY - cant remember, somewhere in there they upgraded it.

[galeryz213]

My ecotec has 210kw, and i've spent less than $2500. If your patient and look out for the odd bargain its not that expensive

[Jesterarts]

CAI, full exhaust, Bigger TB and high ratio (1.95:1 or higher) Roller Rockers.... that should have you around the 200kw @ the fly mark...

[Full Spectrum]

Cam chip package 30kw they claim min..
Twin throttle body 15-20kw.
Full exhaust system 5-15kw..
Home made CAI..

You have a manual so less power lost.

[goldencommodore]

hey i got a vt with full exhaust, k'n ari filter custom cai, chip, 1.8 roller rocker and dyno tuned, got 118kw at wheels roughly 170 at fly
i thinking of getting a larger tb, and maybe a manifold insultor form mace engineering, i want a different diff to. wats ur thought on these things power wise the tb and insulator r like 180 each or so so its cheap even if it doesnt really make much difference

[benjamino]

you do know there standard to 165kw?

The exhaust alone will free up maybe 10-15.

maybe at the fly.
but if your talking actual kilowattage that u can feel
when u stick ur foot down on the pedal,
ur only guna feel the 120/ or so kw thats at the wheels after a bit of works been done.
theres a whole bunch of dudes here with similar mods,CAI,K&N's,hi-ratio-rockers,exhaust,that rarely pull over 120-130rwkw.

but hey if you dont care about petrol
go cam.
make it sound heaps better also.

[Sphinx]

if you're off your P's why not just go for an LS1? VT series 2 were 220kw stock, so about 180rwkw with no money spent other than the purchase price. they're getting cheaper every day!

[nicko451]

with the mods u listed you will easily get 200 at the fly! i have close to 185 at fly with just exhaust and k&N!