VX Calais 5.7L rough Rwkw estimate?

[Vxcalaisv8]

I know it's hard to estimate the rwkw without it being dyno tested. But my Vx Calais has a 5.7L V8, 2.5" x-force twin exhaust system with catbacks and extractors. Stage 2 shift kit, Ls1 edit and a CAI.
Just wondering if anyone with similar mods has had their car tested and give me a rough number?

 

[TigaVTSS57]

my old vt 5.7 auto had about 218 with the same mods.

 

[Kiddo]

I'd be thinking 190-205rwkw

 

[kangavxss]

I know it's hard to estimate the rwkw without it being dyno tested. But my Vx Calais has a 5.7L V8, 2.5" x-force twin exhaust system with catbacks and extractors. Stage 2 shift kit, Ls1 edit and a CAI.
Just wondering if anyone with similar mods has had their car tested and give me a rough number?

My vxss made about 227rwkw with similar set up as you then jumped to 267rwkw with a small cam upgrade..

 

[Ian Johnston]

Did you get it tuned after all those mods? If you did, surely you would know a rwkw figure.

 

[richardpalinkas]

It's had an ls1 edit, so more likely a mail order tune if he does not know the rwkw. If say around 230-240 if it has an otr intake, maybe take 10kw off if its not

 

[Vxcalaisv8]

Thanks for your estimates guys. I bought it with all the mods already done to it. It keeps up with my mates vx ss which is at 237rwkw so it must be around that mark somewhere.

 

[Vxcalaisv8]

It has an OTR.

 

[s_ikari2015]

I agree with 220-230rwkw. My last dyno had 224rwkw without extractors, effectively just the mailorder tune.