miniVan wrote:
ok, well i'm a little green when it comes to mini parts and go fast bits.. whats a hs4?
i have a stock 1 1/4" SU, so i'm guessing the dellorto has to be better
and if she hits redline well that to me would say she gets better top end power with the dellorto... which is better power.. top end or not
i'm going ahead with the conversion anyway and i'll let you know how it goes
Your 1 1/4" SU is known as an HS2. An 1 1/2" SU is an HS4. You also get other varieties, like H2 and H4 (older type) and HIF4 and HIF6 (newer type). The number refers to the number of 1/8" over an inch the butterfly is - so HS2 is 2/8 over an inch = 1 1/4". HIF4s and HIF6s are also known as HIF38s and HIF44s respectively - this reflects the change to the metric system
You are right re top end, my Dell'orto really unlocked the top end for me, even though it isn't properly tuned. But when I was playing with an HS4 carb, it also gave instant gains in top end, but it wouldn't run at all below 3000rpm! I got sick of the HS4, and had spent a lot rebuilding it, and then as with Chong, a Dell'orto came up at a bargain price....
Anto.