4.6 Triton vs. 4.8 Vortech vs. 4.7 I-tech
#31
#36
Well i had 2 ford trucks. one with 4.2 v6 and now i got the 4.6 triton. Ive also diven my buddys 4.8 vortec chevy. the 4.8 out classes my 4.6 triton the over head cam of the ford doesn't lug up step grades like the 4.8 does. the 4.6 doesn't have the touque where you need it. if you look at all ohc motors the torque is always higher in the rpm range. And the same for the jap trucks. give me an old ford 302 or 351 pushrod motor any day over these no torque untill 4000 rpm ohc motors.
#37
I just know what i'm talking about being a drag racer. I didn't dig up anything its just the truth. I didn't look it up on here. Ive done all kinds of mods on My car and I don't see any 4.8L puting only 187hp to the wheels. I don't know of any car or truck losing 88hp from the engine to the wheels. thats more like 4.6 numbers. I have a car putting out stock 310 to the wheels on the dyno n/a. and its a 5.7L now its over 400 to the wheels with just a cam and a few other mods. no supercharger. and stock heads. Now if i went with 5.3L head flow better than the 5.7L i would gain even more since all of GM v8s are now based of the ls1 and ls6 corvette engines.When i have my truck dynoed. I'm not expecting much more than 180 hp and 250 ftbls of troque. also your gear have alot to do with hp also like if you have 3.55s vs 3.73s you will make less hp on the dyno with the 3.73 gear set vs the 3.55 gear set.
#38
I just know what i'm talking about being a drag racer. I didn't dig up anything its just the truth. I didn't look it up on here. Ive done all kinds of mods on My car and I don't see any 4.8L puting only 187hp to the wheels. I don't know of any car or truck losing 88hp from the engine to the wheels. thats more like 4.6 numbers. I have a car putting out stock 310 to the wheels on the dyno n/a. and its a 5.7L now its over 400 to the wheels with just a cam and a few other mods. no supercharger. and stock heads. Now if i went with 5.3L head flow better than the 5.7L i would gain even more since all of GM v8s are now based of the ls1 and ls6 corvette engines.When i have my truck dynoed. I'm not expecting much more than 180 hp and 250 ftbls of troque. also your gear have alot to do with hp also like if you have 3.55s vs 3.73s you will make less hp on the dyno with the 3.73 gear set vs the 3.55 gear set.
#39
Thats not what i was trying to do there buddy. I was making a point that ford should have stayed with the pushrod engines. but do to fuel milage the went with the ohc engines. I think if they would have done a little more R and D On the great pushrod engines that they offered like the 302 the power numbers would be better and more mpg freindly. I was just saying out of all the truck engines today. I still think that the pushrod engines are where its at and only one company offers that. I heard that ford is coming out with a new pushrod 302 bosting 400hp. hope they put it in the trucks.
#41
30%
I just know what i'm talking about being a drag racer. I didn't dig up anything its just the truth. I didn't look it up on here. Ive done all kinds of mods on My car and I don't see any 4.8L puting only 187hp to the wheels. I don't know of any car or truck losing 88hp from the engine to the wheels. thats more like 4.6 numbers.
4.6L = 220hp*.20=44...220-44=178.....which is what the stock truck dynos at.
4.8L = 270hp*.20=54...270-54=224 (at 4000 RPM LOL)
With trucks it not so much about how much "peak" horsepower you make, its how much you get and how low you are when you get it.
Read a book sometime LOL
Last edited by malexander52; 01-20-2009 at 06:36 PM.
#43