I have the same set up as far as engine and gears. But I have 33 12.5s. Flat ground i can peak at 60 MPH, up an average hill 45-50 MPH and down hill is unlimited. My wife says "that the only way it will do over a hunderd is if I drove it off a clift and got out and pushed". Anyway My speedo is exactly 5 MPH slow. (I have lots of cop friends) So if I am doing 50 it is really 55MPH. I hope this helps. By the way I am about to get a GSR 1 that would give me a 12% decrease. can anyone give me the gear ratios for the 2wd high? Thanks
Those of you who are running webers and 31's or smaller. Do you still have all those stupid vaccuum hoses? Or did you cap them? Also cap that hot water hose during the summer, the one heading into the intake manifold that warms the air intake. Yer losing raw horses if you keep those things open. With my current set up on a flat I can get 70-75 easy. Give me a tail wind and I can break 85.
Neal the Zukiguy
"If it is '...a Jeep thing...' I hope it isn't contagious"
With my stock engine, carb and gears but with hedders and 35" tires I was able to do 60-65 on flat ground in 4th gear, with Hills or high wind it would knock it down to around 45-50+/- but that depended on the type of hills and/or wind.
I dunno why you guys have such slow zooks. My old 1.3 (20 thou, shaved head, torquer cam), stock carby, stock air box, 235*75r15 rubber, genie extractors and 2" straight through (no cat) could easy get above 93-95mph. That would have equated to 5th gear, 4500rpm.
my new engine (brand new 1.3 block that is beeing tickled so I can put a supercharger on it in about 6months) should be able to the same speed at 2800-3200rpm because of the dual purpose cam I'm putting into it (without the supercharger). It will also be running a stock air box and stock carby.
I don't think I'll have a problem turning these 32x11.5 BFG MT's
shaving the head is taking it off and having some material milled off the flat end. this will raise your compression which will make your sami faster (a little), but your motor will most likely ping unless you run high octane fuel and could possibly run hotter. also if you were to ever break a timing belt having a milled head could be costly because the valves are now closer to the pistons and more likely to hit. I wouldn't risk it if I were you.