Make a VN go a little better.

[holdensmychoice]

G'day guys, I've got myself a VN... just wondering what i could do to it for say under $500 to make it go a bit harder? whats some of the stuff you guys have done thats made a difference or you can suggest. Its just a stock 3.8L. Thanks

[sik_dose]

OTR CAI and K&N pannel filter cost around $150, LSD and diff gears or a Delcowizzid tune.

[holdensmychoice]

OTR CAI and K&N pannel filter cost around $150, LSD and diff gears or a Delcowizzid tune.

Cheers mate, i feel dumb for asking but whats a "OTR CAI"?.

[sik_dose]

sorry mate. its an over the radiator cold air intake, you can find em at repco, your holden spare parts guy or ebay. some people dont like them but their way better than the stock air intake, are legal, matched with a K&N pannel filter give you no real power increase but a better throttle response and you can clean it and reuse it.

[TVR-190]

CAI = 70 bucks ish - look in the how to area for details.

KN filter = 80ish

Exhaust = 200 delivered

Tune = 50/100 ish

[holdensmychoice]

sorry mate. its an over the radiator cold air intake, you can find em at repco, your holden spare parts guy or ebay. some people dont like them but their way better than the stock air intake, are legal, matched with a K&N pannel filter give you no real power increase but a better throttle response and you can clean it and reuse it.

ahh right now i know what your talking about, thanks mate for them suggestions

[holdensmychoice]

CAI = 70 bucks ish - look in the how to area for details.

KN filter = 80ish

Exhaust = 200 delivered

Tune = 50/100 ish

cheers for that i'll look into it and see how it goes. Im looking for throttle response and power increase etc..

[padrickz88]

1. Tune from delcowizard or foamy
2. Exhaust
3. CAI thru the gaurd with 100mm pipe to the front bumper
4. Get rid of weight in the car

[smnsez]

bigger throttle body more air = more power

[hamisgoodforyou]

CAI And an Exhaust, just to get you started.

[holdensmychoice]

sweet thanks guys, awesome.. im gonna go get that shit asap

[sik_dose]

bigger throttle body more air = more power

how much bigger are the V8 TB's compare to the V6 ones?

[2DIE]

how much bigger are the V8 TB's compare to the V6 ones?

5mm
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[VXHBD6]

take the pod filter off

[sik_dose]

5mm
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Is it worth it?

[josh_scott_1987]

i think so

[2DIE]

I haven't bothered to get one, if I could get a V8 one for free I'd probably chuck it on but most of the posts I've read about them here don't sound like its worth it.

[Sharpie]

how do i get one of these tunes for my Vp?

[levymetal]

how do i get one of these tunes for my Vp?

send nicefrog a pm on ebay. this link is for a VT but he will list a VP one for you if you ask Maximum performance VT V6 Commodore memcal c/o - eBay Mod Chips, Performance Parts, Car Parts, Accessories, Cars, Bikes, Boats. (end time 12-Apr-10 05:01:13 AEST)

[Darren_L]

a larger throttle body is of little or no benefit to a stock or near stock engine. It can even reduce engine performance as the airspeed will tend to slow on a larger throttle body, particularly at low to mid rpm.

a throttle body will only flow as much air as the engine uses. Your money is better spent on a tune, exhaust and CAI

[holdensmychoice]

a larger throttle body is of little or no benefit to a stock or near stock engine. It can even reduce engine performance as the airspeed will tend to slow on a larger throttle body, particularly at low to mid rpm.

a throttle body will only flow as much air as the engine uses. Your money is better spent on a tune, exhaust and CAI

ahh right, ok. Cheers

[sik_dose]

a larger throttle body is of little or no benefit to a stock or near stock engine. It can even reduce engine performance as the airspeed will tend to slow on a larger throttle body, particularly at low to mid rpm.

a throttle body will only flow as much air as the engine uses. Your money is better spent on a tune, exhaust and CAI

That dosent make sense to me. If you have a tune, exhaust and CAI then the engine would use as much air as it can get. So the extra air from a slightly larget TB at full throttle may well Increase power, I was just quote $55 for one and im waiting to hear from someone who has tried it to see if its worth it.

[Darren_L]

it makes perfect sense. If the factory throttle body was too small, then yes it would make a difference. But let's face it, the V6 throttle body is only 9% smaller than a V8 throttle body, yet the V8 is 1200cc larger in capacity.... Do you really think a CAI, exhaust and tune is going to increase the air flow of an otherwise stock 3.8L V6 to that of a 5L V8 ? It's like plonking a 750 Holley on a 202 and expecting gains based on the theory that a bigger carb has the potential to flow more air. If only it was that easy.

The maximum amount of air an engine draws in is dictated by the engine capacity, cam profile, atmospheric pressure and intake/head flow characteristics.
A CAI purely picks up cooler, denser air in. The volume of the air remains the same, however the mass is increased due to the increased density.
A better exhaust can improve engine breathing, which will increase intake volume slightly - but nothing that exceeds the factory throttle body
A tune on a stock engine usually doesn't make any significant gains in peak hp, it is more a case of changing the power & torque curve through ignition advance changes

Until such time as you significantly improve the engines breathing - by way of big duration cam, head/manifold work, forced induction, then it simply isn't going to draw anymore air than the engine is capable of - no matter how big the throttle body is.

Don't listen to 'seat of the pants' feedback, because most people tend to convince themselves their car is quicker after any mod, when often there is no difference. If you really want to see the results, run your car down the drag strip before and after the throttle body swap and compare the timeslips - I suspect you'll be disappointed at the results

[Vlad01]

and yes see how gutless a v8 is with all that displacement? lol even the VK had a bigger one.

[sik_dose]

it makes perfect sense. If the factory throttle body was too small, then yes it would make a difference. But let's face it, the V6 throttle body is only 9% smaller than a V8 throttle body, yet the V8 is 1200cc larger in capacity.... Do you really think a CAI, exhaust and tune is going to increase the air flow of an otherwise stock 3.8L V6 to that of a 5L V8 ? It's like plonking a 750 Holley on a 202 and expecting gains based on the theory that a bigger carb has the potential to flow more air. If only it was that easy.

The maximum amount of air an engine draws in is dictated by the engine capacity, cam profile, atmospheric pressure and intake/head flow characteristics.
A CAI purely picks up cooler, denser air in. The volume of the air remains the same, however the mass is increased due to the increased density.
A better exhaust can improve engine breathing, which will increase intake volume slightly - but nothing that exceeds the factory throttle body
A tune on a stock engine usually doesn't make any significant gains in peak hp, it is more a case of changing the power & torque curve through ignition advance changes

Until such time as you significantly improve the engines breathing - by way of big duration cam, head/manifold work, forced induction, then it simply isn't going to draw anymore air than the engine is capable of - no matter how big the throttle body is.

Don't listen to 'seat of the pants' feedback, because most people tend to convince themselves their car is quicker after any mod, when often there is no difference. If you really want to see the results, run your car down the drag strip before and after the throttle body swap and compare the timeslips - I suspect you'll be disappointed at the results

Thanks for explaining. Im going to keep an open mind. Im not going to spend $50 on a V8 throttle body but if i can get one cheap ill give it a go just to see what happends.