WOT 428 power improvment sugjestions?

[bluef100fe]

.... I don't doubt you can turn your engine 7000rpm but it ain't making any power up there...

... Class champ last two years... And the only FE in the class

Anyway good luck hope you can get your FE to the front somehow...

Thanks for the vote of confidence, I am getting there. What is your class weight? Looks like we are geared the same only smaller tires. I still have my 35's that I took off when I was working on the drive train to up the power before I started working on the engine side of it, so I will probably try those after a few pulls with some slight tuning mods.

 I have one 390 that pulls in my class and a 428 something in a Super Stock truck that are regulars, then probably one once in a while that will show up. Most of the Fords that compete in the top 10 are 460 based or 454 Chevy's and one v10 Dodge that does ok. The one that always gets first is running a 557 and the second place guy is running a 478 so the top two are nasty.

I am running the stock push rods and non-adjustable rockers. I figure my power peaks around 5800 because with a heavy sled that's about where it wants to run. However with a small sled the r's are scary, even with the old D2 heads I took off. The cam I was running before this one was a 280H Comp with comps matching springs, I did not like that one. It pulled ok but at the sand drags valve float occurred at 6200 like clock work.

Nick

Nick I ran some calculations on your trucks setup and the one I drive.... Just to level the speed debate I settled on a 6000 rpm number for my calculations... You mentioned our trucks are geared similarly they are but the devil is in the details... With the difference in the wide ratio gear set your using and the standard set I'm using and the 31 inch tires your using and 33 inch I'm using there's 2.5-3.0 mph difference between our trucks turning the same rpm... Now to some people that's not a big difference but to a sled puller it's huge to have that extra momentum at the end of the track... Anyway to answer your other question we pull this truck in 5000, 5500, 6000, and there's a 6200 lb street open class we get into once in awhile the 6200 class seems similar to what your running for rules... Long story short I think you need more power and more wheel speed.. So I would try your taller tires... Other by product of your taller tires is your going to have more contact patch on the ground... Might keep your truck hooked up to the track for a few inches longer before spinning out.... Keep up the good work...

[NIsaacs]

Thanks Cody for sharing, I have found most sled pullers are tight lipped about helping the competition, even my own brother lol and he is not even in my class, he pulls Super Stock. I think he is afraid that is my next class and he is probably right, but first things first. It has been a long 3 years getting to where I am. I think you are right about using the bigger tire set, I installed the low gear kit before I did any work to the engine and I needed it, but maybe not now. If it wants to run at 5800 and will still do that with the bigger tires, then yes that will be a big improvement. When I first started and even not to long distant, the little Ford eco-boost trucks were out pulling me, that's just wrong!! I have since left them in the dust thou. Win or loose, I am having a blast!

Nick