got a 86 xtb tryin to setup for the qtr. Its got a 2.4 mod vp 7 in. setback its turnin a 27 chopper 7600 and a 26 yam drag 7000-7200,but I cant keep the boat in the water .Any ideas for a goood prop setup?
I don't understand why it has a problem staying in the water, and I'm wondering why a higher pitched Chopper turns more rpm's than a Yamadrag... Anyway, typically a Yamaha Drag or an ET will out accelerate most anything else in the realm of a short track...
allison do,nt recomend going any farther back because they say the transon on that year wont hold it. im still thinkin of puttin some 2in spacers in what ya think?
i would try and prop that motor around 7100-7200..i think the mod vps have cast pistons ,i would look for a hoss triton for a great prop.darris worked with dave alot when devoloping the xb models in thoseyears and it shows..
also i dont think you would have a problem with the transom but you could get the metal plate from allison that goes on the transom and put a plate on the inside,i would get the 10-12 adjustable plate and start at 10 and work your way back
I have a 88 xtb with a mercury 280. It has a 15 inch mid section. 10 inch set-back, even with the pad. I run a 27 trophy which gets me high 90's with tournament loads and for speed i play with a 28 et.