Low boost/High compression....
04-05-2006, 08:30 PM
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Low boost/High compression....
...?
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
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
04-06-2006, 10:06 AM
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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
Brad
04-06-2006, 01:02 PM
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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
04-06-2006, 05:18 PM
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Originally Posted by Grimace03L
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.
04-06-2006, 06:43 PM
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Originally Posted by stripper
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
Brad
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04-06-2006, 10:08 PM
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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
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04-06-2006, 10:09 PM
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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
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
04-06-2006, 10:20 PM
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Originally Posted by Bird
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
Bird
