Quote:
|
Originally Posted by giddyup50
Sky, I always agree with what you say but I kind of disagree with you on this one. You don't have to have an engine built to run 4.10's or even 3.73's. I don't know what you guys run over there but here (USA, Illinois) a lot of guys run 3.73's all day long. And a few run 4.10's. I never got the chance to get a set of gears in my 5.0 before I sold it, but I did my homework on it. About 30 miles south from where I am is a Ford Motorsport Dealership called Anderson Ford. They are always in the Mustang performance magazines for testing parts and for creating there own. One of the owners there who does the testing and other people I've talked to said that even a stock or mostly stock 5.0 with 4.10's will just cross the 1/4mile in 4th gear right at or just a little over redline(6250rpm). On the highway at 65mph(who does that, too slow) it's only about 200rpm's more with 4.10's vs. 3.73's. So there really isn't that much difference in the economy of 3.73 vs. 4.10's for the better performance you get with the 4.10's. Sure there are different set-ups that 3.73 or 3.55 would be better, I think alot of the road course guys go with 3.55's but more drag racers go with 3.73 or 4.10 or in some cases even higher than 4.10's (wow that would really snap your neck).
|
Yep true, but that is based on a stock or close to stock car. Boost applications, he will have a lot more power, so it will put him over the sweet spot, plus I always have milage on my mind, and 200rpms is not a lot, but it does add up.
Remember, he wants to run a 351, not a 302. Either way will work, its just a slightly different mind set.
If he goes with a 28", and 4.10 that would be cool, then it would put the car at 3.81
That would put him at 125mph or so, at 6250.
Trapping at 115 with 4.10s on the stock26", is fine, but like I said, hell have the power to trap around 125, so he'll have to spin around 6600, I see your point, but it depends on the engine. That would be little more than I would want to push a hydro.