...?

My next mod is gonna be rods. I was thinking about it today and would like some feedback on this subject. I figure while the rods are out throw some 9:1 pistons in and and drop the boost down a bit.

Anyone have input on this, it's appreciated. I'm pretty sure it would work, and possibly quite well, but I'd like to hear some other opinions on it.

Cree

 

i would think you could get more power from a lower compression ratio and higher boost levels but idk...

 

JJ@WMS has been doing this for a while with good results. Less boost, but more power. Can't run as much timing, but you don't need it to make the power.

 

If your going to replace rods, ya it would be a good idea to throw some low comp pistons in it. Also I would keep the compression around 9.5:1. If you go to low it might hurt you in the HP department or you will need to throw a lot more boost at it.

Brad

 

if u do a search on f150 bout jdm, u can see that jdm is actually building some of his new motors with a 9:1 compression ratio. cant remember the results right off hand

 

Yeah, I knew JJ was running motors like this, but I don't know the likely hood of him sharing any info with a lil guy like me. Doesn't he have some Eaton trucks in the low 11's off spray?

 

Our STOCK compression is 8.4:1, so its higher for us. DAMMIT Rob, why is everyone taking my idea? Ive been plotting this for a while. More power, on less boost sounds great to me.

 

Cree - your low rpm torque will be fantastic with that setup and with the right setup / tuning, will pull very strong on the top end. As previously said - lower the timing and watch the A/F and you'll be great with it. I've done this same thing with other suoercharged engines with nice results. Also got around a JLP engine today with 9:1 and stage-3 cams - beautiful sounding lope.

Bird

 

some custom venolias with stainless dykes rings to seel in that boost would be nice then send thm in to get lightend. that may not be a good thing for the longevity of the motor though

http://www.venolia.com/ my buddys have used there stuff in our AMCs for years

anyone know what sise the wrist pin and crank journals are can you do an offset grind and stroke a 5.4

 

Sweet. That's what I want to hear. Now I just gotta scrape together the cash for it.