I want more power from my 308

[craigvk]

I want more power from my motor but don't want to super charge it or NOS it. Apart from boring the block and putting in oversize valves & porting the head, what can I do?

[vee ka]

cam, carbie, exhaust, intake manifold, heads.

[NOT.BT1]

stroker crank 355 or something similar manifold and carbi and heads flowed should get you started

[immortality]

it really depends on how much more power you want/what your targets are for the car. i.e. 14 sec 1/4 mile etc

[vkberlina]

I want more power from my motor but don't want to super charge it or NOS it. Apart from boring the block and putting in oversize valves & porting the head, what can I do?

As what the others said plus a cold air intake tray & sports type air cleaner

cheers
scott

[Cane_It]

hard to say on a dual fuel setup, but cam, up the compression and a mild port job on the heads, they should already have the big valves. or you can buy my yella terra heads off me so I can get some VN ones... LOL

[craigvk]

Can VN heads bolt on with just another manifold and headers? Have they got a bigger intake? Are the heads smaller or bigger?

I want to aim for 200 kw.

So far my VK only has extractors... WHOOPY do! haha. I just want more beef especially when I see my friends SS ute do wheel spins at 60 km/hr even though it's a Gen3... but still!

I have been planning to get a new cam, lifters, springs and chain for ages but been too busy. Not too sure about much of a major difference in power using a different cam but a different crank and larger intake sounds like an idea.

Cheers.

[craigvk]

it really depends on how much more power you want/what your targets are for the car. i.e. 14 sec 1/4 mile etc

I just want more power I can't afford a late model SS

[253@7k]

VN heads with better valve springs, (maybe a mild port) cam (crane 284 or 286 are good) to suit vn heads with new lifters/t.chain/pushrods, torque power manifold, 650 demon, elec fuel pump, new oil pump and maybe a set of thermo fans.

This would be a good setup with a hi stall, gearbox work and 3.5 gears.

[vee ka]

Can VN heads bolt on with just another manifold and headers? Have they got a bigger intake? Are the heads smaller or bigger?

I want to aim for 200 kw.

VN heads bolt straight up to a 308 black motor, but you need to get a manifold to suit the VN heads. heads are about the same physical size but the ports etc are alot better for flow and power. will also need rocker covers to suit the VN heads.

200kw is pretty easily achieved if you spend the money in the right spots.

[Cane_It]

to go VN heads from the old style heads you need to change the following;

Manifold
Exhaust
and Cam to suit because the intake and exhaust valves are arranged differently obviously
someone also pointed out that you will need the rocker covers too... I'm not sure if theres clearance issues with them against the booster, there shouldnt be but it pays to ask the question.

its all big bucks, if i had my time again I'd go injection I think.

[Christina]

ding ding ding, supercharge it, you know you wanna spend the cash

[craigvk]

If I chucked on VN heads, how much power increase would I get with them and a new cam?

[kellyvk]

[QUOTE=craigvk;590622]I want more power from my motor but don't want to super charge it or NOS it. If you also want to drive it on the street, i wouldn't suggest nos, and dont put it in your motor if it's stock.

[Cane_It]

If I chucked on VN heads, how much power increase would I get with them and a new cam?

It would probably go nearly as hard as my car...
go a Crane 286, and Crane lifters, dont ever mix crow and crane lifters and cams... The VN heads are pretty good straight out of the box and theres more to be had with just a bit of mild porting, they already have the big valves and induction hardened seats for ULP too.

[Christina]

My first thoughts a while ago was GM lifters off ebay, Crow cam, new chain and heavy valve springs. What manifold can I use? Would a 5 ltr VN manifold bolt on with 308 gaskets? What about the exhaust? I would need different headers?

[Cane_It]

Do not mix and match lifters and cams... if you use a crow cam use crow lifters and if you use a crane cam use crane lifters.... its that simple, they are designed to be used as a package and I know of one engine that ran a couple of cam lobes because this advice wasnt adhered to.

RE your other questions, RE-read my earlier post.

[ThongyVL]

Change your ignition system, Replace your coils with a MSD SS Blaster coil and also get a MSD Ignition Control unit. I can supply you those for $500 plus postage.

[Cane_It]

Change your ignition system, Replace your coils with a MSD SS Blaster coil and also get a MSD Ignition Control unit. I can supply you those for $500 plus postage.

waste of money... and before I get flamed I had that stuff lying around and run it in my VK and it made ****all difference power wise except made it start a little easier.

[253@7k]

waste of money... and before I get flamed I had that stuff lying around and run it in my VK and it made ****all difference power wise except made it start a little easier.

Not to flame you mate but when i put my msd kit on (dizzy, coil, 6al) it did improve my pick up a little. also it made tuning the dizzy to suit my cam far easier. though for the money you could get more power with other mods, i just was getting sick of points.

[ThongyVL]

Not to flame you mate but when i put my msd kit on (dizzy, coil, 6al) it did improve my pick up a little. also it made tuning the dizzy to suit my cam far easier. though for the money you could get more power with other mods, i just was getting sick of points.

Did you change your ignition coil? Or just use the Ignition Control unit alone. Cause if you use the Control United alone, it is possible to crack the stock ignition coil, should upgrade to SS Blaster coil to handle the more spark/current going in to it.

[Cane_It]

I'm running the MSD off an electronic dizzy using the reluctors to trigger the MSD instead of the Holden module. MSD will; give a vast improvment over a stock points ignition no doubt about it, but compared to the Holden HEI, theres bugger all difference, I had the stuff, needed a new coil so I thought why not.. but if I had $500 i' be putting it on a bigger cam or saving up more to go to a set of VN style heads.

[253@7k]

Did you change your ignition coil? Or just use the Ignition Control unit alone. Cause if you use the Control United alone, it is possible to crack the stock ignition coil, should upgrade to SS Blaster coil to handle the more spark/current going in to it.

Mate i changed everything. MSD pro billet dizzy, MSD 6al controll unit, MSD blaster 2 coil and a custom made set of MSD leads.

[crznvn]

whats a good manifold to run with the vn heads for a carby

[crznvn]

also do vn extractors fit in to a vk or do you have to get custom ones