I am running 17.5 buggy too im curious what more are doing for the Tekins setups and gearing. I have looked at the setups on Tekins website already but I have seen people go with standard rpm ranges and 45 timing and 10 for boost with a 35/72 but I've seen this really go all over and I think my car is a little sluggish at spots and would like to gear down more. If anyone has a good 17.5 setup can they post or pm me.