VT Supercharged - power up advice

[Rifleman]

I'm looking for guidance on increasing street performance of my standard supercharged VT. Considered increase though changing supercharger pulley, chip change, exhaust enhancement, combination or other.

What is worth doing for a few thou spend to deliver best bang for bucks....located Sydney area.

[D_BLOCK]

pulley,chip then exhaust.
Pulley/chip can be cheap in no partictular order depending where you get it, I got an XU6 spec chip off the net for 170(VX), then exhaust, then pulley, but just detonated the engine so pulley not much use (new in pack not installed).

Anyway pulley would be 1st bang for ya buck, then whatever you budget.

[BIG-EV]

wat u should do is save up and do all ya mods at once and then get it tuned to save some money there.... i say just get a 10psi because over 10psi the ecu cant tune the engine probs.. and a set of high ratio rockers.. mace sell 1.98:1 high ratio which are great but if u want a better feel get split ratio rockers.... then when u got the cash get an intercooler and tune at the same time and bump the boost up to 18psi..

[redcv6]

search the forum mate, topic has been covered many times on JC.
www.l67torque.com • Index page - all the info you need on this site

[chargedvx6]

87mm pulley with cooler and smaller gapped plugs, cold air intake improvements, split ratio rockers then exhaust in that order.

A chip is a step backwards until you go for a cam or cooler.

If you can squeeze some higher ratio diff gears in ther that would help. 3.46:1 LSD is a good start and doesn't ruin economy

[woolly]

can anyone help!!! my supercharged vt has throwen a big end and damaged crank, rod and block webbing!! i have got a standard n/a v6 and in a quick look the block looks to be the same? i want to rebuild this one and use correct rods and pistons for s/c motor. if anyone knows any other differances could you please let me know!!!

[BIG-EV]

same crank,, differnt rods and pistons for the comprssion ratio and there is one more oil hole in the ballance shaft on the supercharged block.. apart from that its the same.. im using the standard ecotec bottom end and im running 18psi dont know long she will last but im getting a 4.2L stroker kit from come racing (santa came early this year )