Hi all,

I'm soon going to be putting extractors and a 2" exhaust on my stock '92 sierra and have read that once that is done the Carb will be the limiting factor.

For a while i was considering changing to a weber but my stock carb has never given me any issues and i don't want to have to give angles a second thought.

I've read on other forums about people swapping the primary and secondary jets in their carbs and stretching the spring so the secondary opens earlier. Unfortunately the people who have done it seem not to be particularly active and i'm still yet to decide whether it is worth the effort.

Has anyone on here done this change? If so, how great an improvement is is to performance, and what has it done for fuel consumption?

Also, Would swapping to the Vitara carb be worthwhile? Is it as reliable on angles as the stock carb?

And finally, Is it worth thinking about Carburetors at all? Or, is there something else i could be doing to get a little more kick out of my 1.3 Sierra?

Cheers

i recon that the only worthwhile power up for a sierra is a vit 1.6

not if your on your Ps or Ls

makes no difference what ya license is where i am.
you could have 10 turbos hanging of a big block chev in a excel and ya could drive it on your Ls

i have a sierra carby on a vit manifold so the vit one should fit on the sierra manifold.

also get your full license at 17 in the nt.

also get your full license at 17 in the nt.

we can go swimming here

You can swim here too.

You just have to be fast !!!!!!

Steve or Nissvit posted a fair bit of detail in rejetting a sierra carb on here somewhere, makes a huge difference

gypsy on here has a 1.3 with mild tighe cam, exhaust and rejetted carb and its pretty nice to drive, will in a straight line on a smooth road at least

found it: http://www.auszookers.com/index.php?nam ... ight=carby

cams are the way to go. Mild cam and 110 120 jets cant go wrong