HP gains from displacement
02-10-2009, 06:58 PM
#1
2nd Gear Member
Thread Starter
Join Date: Nov 2007
Posts: 201
HP gains from displacement
What horsepower gains do you get from 4.6l to 5.0l. I have no clue. Also who sells shortblocks over 5.0l displacement (i.e. 5.1l or greater). I have heard of a few but can't remember the names. Lastly who do you guys recommend for shortblocks. I would like to create a list for others as well.
Thanks....and ****
"Hard work pays off later but laziness pays off now" George W. Bush
Thanks....and ****
"Hard work pays off later but laziness pays off now" George W. Bush
02-10-2009, 07:22 PM
#2
4th Gear Member
Join Date: Dec 2005
Location: Houston
Posts: 1,371
You also have to take into consideration the Compression ratio. When i went to the 298 motor my compression went down some so i only gained about 10rwhp but i was able to run a lot more boost this way. I think stock compression is either 9:7:1 or 9:8:1 and i went down to a 9:1:1
If you are looking to build a NA motor though, then definately do a high compression somewhere in the 11:1 or 12:1 range seems to be the norm for NA builds
Livernois builds some really nice motors, if i had to do it again thats who i would go with.
If you are looking to build a NA motor though, then definately do a high compression somewhere in the 11:1 or 12:1 range seems to be the norm for NA builds
Livernois builds some really nice motors, if i had to do it again thats who i would go with.
02-10-2009, 07:28 PM
#3
2nd Gear Member
Thread Starter
Join Date: Nov 2007
Posts: 201
I have a Whipple and would like to get to about the same place you are. I am starting to save for this but I want to start asking all the important questions early. Also would you recommend another type of tranny rather than a TR6060, they are a little pricey. I bet our stock ones just melt with the amount of horses you are puttin down.
02-10-2009, 07:35 PM
#4
5th Gear Member
Join Date: Mar 2007
Location: Deep in the <3 of Tx
Posts: 3,925
Yep, Huf broke his 5-speed. That was with less HP than he has now! 
Since you're FI'ed, I'd say look at Livernois blocks. A lower 9.1:1 compression would be good for you as you can up the boost a lot more. Their blocks are also solid and will handle as much as you can possibly throw at them with a whipple.
Besides a TR6060, you could always go to a TKO 500/600 which is an auto 5 speed with full manual valvebody so you can still shift yourself. http://www.5speedtransmissions.com/tr-3550.html
Since you're FI'ed, I'd say look at Livernois blocks. A lower 9.1:1 compression would be good for you as you can up the boost a lot more. Their blocks are also solid and will handle as much as you can possibly throw at them with a whipple.
Besides a TR6060, you could always go to a TKO 500/600 which is an auto 5 speed with full manual valvebody so you can still shift yourself. http://www.5speedtransmissions.com/tr-3550.html
02-10-2009, 07:37 PM
#5
4th Gear Member
Join Date: Nov 2007
Location:
Posts: 1,699
You also have to take into consideration the Compression ratio. When i went to the 298 motor my compression went down some so i only gained about 10rwhp but i was able to run a lot more boost this way. I think stock compression is either 9:7:1 or 9:8:1 and i went down to a 9:1:1
If you are looking to build a NA motor though, then definately do a high compression somewhere in the 11:1 or 12:1 range seems to be the norm for NA builds
Livernois builds some really nice motors, if i had to do it again thats who i would go with.
If you are looking to build a NA motor though, then definately do a high compression somewhere in the 11:1 or 12:1 range seems to be the norm for NA builds
Livernois builds some really nice motors, if i had to do it again thats who i would go with.
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