want more power in my vt v6

[jason_85]

i know, i know. its only a six but is there anything i can do cheaply to get more power in my vt.... it only has 198xxx ks and a cat back 2.5 system... but i feel its not as gutsy as it was when i got it.. ive done plugs, leads, oil and filter plus fuel filter and pump.... i was able to take off from lights and put up a fight but now id probably get smashed by a 1.8l corolla haha... dont bother saying get an ls1, i want one but im only on green p's at the moment although i am 26 haha... so any advice would be good.... oh and i have a mate thats giving me an ss cia when i get to melb.. cheers guys

[elmaso]

Check out the forum sponsor mace engineering, have a few parts to give the 6 a little more kick.
Or go and find an 3.9 LSD.


Aaaaand use the search bar next time, HEEEEAAAAAPs of threads about this very topic,

[Not_An_Abba_Fan]

Put the standard exhaust back on it and it will go a lot better.

[Jonah 101]

Dont drive your car for a week. that will make it feel shit loads faster.

[vsl67]

removed due to trolls

[elmaso]

C'mon blokes his new, if we do this every time, no one will learn anything and this will turn into street commodores.

[Not_An_Abba_Fan]

He wants more power, it's a V6, not much you can do without spending a lot. The best way to make it drive the way it did when he got it is to put the standard system back on. Acceleration will improve.

[wraith]

Every car does that. Had a skyline thought it was damn quick. Drove it a bit got used to it didn't feel as quick.

[jason_85]

the exhaust was already on it when i got it.. it was loud as f**k too now its not... sorry to ask about trying to get more go out a v6, but we al cant drive an 8.. as soon as i get off p's ill definatly get one but for now im stuck with what ive got.

[showbags]

Oxygen sensors and new injectors will help.

[VYMAD]

He wants more power, it's a V6, not much you can do without spending a lot. The best way to make it drive the way it did when he got it is to put the standard system back on. Acceleration will improve.

Is that fair dinkum? I dunno much about these sorts of mods, but thought that 2 1/2 inch would've been quicker?
Was gunna get one when my stock exhaust rusts out, but I might not if it only makes it louder and not quicker!

[Irukanji]

If you want to get more power, go get your engine rebuilt. Sounds like you thrashed the living #### out of it, and now it's buggered. Go and buy a 2nd hand motor + heads from pick-a-part or something and rebuild it piece by piece. Once you see how much effort it takes you, maybe you wont be so hard on it next time...or you'll build it a bit better than Holden did and it'll last forever, who knows.

Anyway, I'll tell you what I found in the rest of the forum;

1. Extractors
2. Replace stock airbox to throttle body tube with some straight walled tube
3. Replace stock panel filter with "high flow" filter, or a pod, or a new airbox.(Not sure what the verdict on this is yet, some saying the stock panel feels the same as the high flow and the pod, others saying the opposite, you'll need to google it yourself )
4. Clean/replace the injectors. Remember bigger injectors might need a bigger fuel pump, and more than likely a retune)
5. High flow cat, better yet 2 cats
6. I think the new thing around here is "Roller rockers" or something, supposedly gives more height and therefore more fuel/air into the cylinders per cycle. You could also replace the pushrods and the cams at the same time...and probably springs.(as "elmaso" said, check out Mace Engineering. When it's time to do my motor, I'll probably go there)
7. Balance crank, increase comp ratio.
8. Shift kit for auto? Something about better changes from the gearbox or something like that. If it's manual and you've been doing doughies, check the clutch.
9. Rebuild auto/manual. Depends on where you're losing the power, really. I managed to find a few horses once by sticking oil into the motor (when I was a n00b, in my first car)
10. TUNE. Nuff said. The stock tune is designed with complete idiots in mind, so it doesn't explode during the 3/5 year warranty period and cost Holden more money. Therefore there is going to be another few horses around waiting to be used.

Anyway, UTFSE(use the ####ing search engine).

[jason_85]

dont know if it was thrashed before me... probably was bieng an ex police car.. plus the guy i got it from was a little shifty looking... its been a good car but like the other bloke said, i could be used to it and seems like its lost power. cheers for all the advice guys.. i contacted mase about some performance parts. gonna give that a hit before any serious over hauls... might just go an ls1 and try to not get pulled up haha

[crazybiker]

Put the standard exhaust back on it and it will go a lot better.

Is there sarcasm there or is that actually true?

[bradzhsv]

Oxygen sensors and new injectors will help.

natural aspirated man just up the comp, its true about the oxygen sensor to mate, i havent studied much 6s but with my 5 litre i put a gen 3 5.7 litre oxygen sensor an it mate much better perfomance espeaically in the high rev range, at the end of the day brother ill be honest an ive heard a natural aspirated vr 6 cylinder sound bloody nasty an i liked the note beter then a lumpy 8 but it costed major bucks man, MAJOR bucks, to me man it was worth it but im never goner ever be the 1 sellin it, just wait for an 8 man, but if ya got the coin bro an ya keen an ya abit mech minded to save abit of labour then tell me know an ill try an help, good luck

[VYMAD]

Is there sarcasm there or is that actually true?

Yeah that's what I asked too! Come on Abba fan, read the posts!

[Defected]

If its an 9c1/BT1 Im guessing it has an LSD...
If so, get a single spinner diff.. or diff gears

[crazybiker]

If its an 9c1/BT1 Im guessing it has an LSD...
If so, get a single spinner diff.. or diff gears

Why not just leave the LSD and put some diff gears on top of that?

[Mick1988]

If its an 9c1/BT1 Im guessing it has an LSD...
If so, get a single spinner diff.. or diff gears

Why would you delete an LSD?????

I would be doing roller rockers, diff gears and oxygen sensors. Even put some injector cleaner through the engine and open the plenum chamber up and clean all the carbon buildup (this is why you should use vPower).

I'm wanting to do all these things on my VX shortly to give it a bit more kick and improve my fuel economy.

[Kernal]

P Platers above the age of 25 can drive high powered vehicles.

[Not_An_Abba_Fan]

The stock exhaust is better for bottom end torque, a larger system shifts the torque curve higher in the revs.

[Jonah 101]

The stock exhaust is better for bottom end torque, a larger system shifts the torque curve higher in the revs.

I have thought about replacing my exhaust with stock diameter tubing and better a flowing muffler. Would this be about right Not_An_Abba_fan?

[monkeys437]

Is that fair dinkum? I dunno much about these sorts of mods, but thought that 2 1/2 inch would've been quicker?
Was gunna get one when my stock exhaust rusts out, but I might not if it only makes it louder and not quicker!

I've always thought for a stock V6 a cat back gives you a gain in the top end but loses power down low in the rev range. So around the streets when most driving is <3000RPM it feels slower and makes stop start driving economy worse because you're putting your foot down further searching for the power. As I understand a powerful car doesn't have this problem because the stock exhaust is too small and chokes the engine, but for a stock V6 the exhaust is the perfect size.

Maybe N_A_A_F can clarify since he knows his stuff but thats how I've always understood things

[Reaper]

Is there sarcasm there or is that actually true?

True.

Reaper

[crazybiker]

The stock exhaust is better for bottom end torque, a larger system shifts the torque curve higher in the revs.

Interesting. In that case, what would be a good compromise? 2.25"