Need some help getting a game plan together.
Need some help getting a game plan together. I'm wanting to get a game plan together before I even attempt my next build.
The only thing I'm 100% sure on is the Trans (th400) and rearend (MWC 9")
I don't necessarily have a HP goal but I'm wanting to hit 8.3x - 8.8xs with ease on pump gas.
I'm not doing this to be in any kind of class or anything like that. I just want a badass street car that I can have a lot of fun with.
I'd want to turn it down a bit to keep me at 8.50s at the track since I'm only doing a 8pt cage but if I wanted to turn it up a bit and go faster, I want to be able to.
Here's what I was thinking
390ci
9.5:1 CR
-15cc Diamond Pistons
TFS or Allpro Heads 70cc
Vic Jr
4150 TB
Custom Cam by Martin
th400 (Converter?)
MWC 9" (Gears?)
What are everyones thoughts?
The only thing I'm 100% sure on is the Trans (th400) and rearend (MWC 9")
I don't necessarily have a HP goal but I'm wanting to hit 8.3x - 8.8xs with ease on pump gas.
I'm not doing this to be in any kind of class or anything like that. I just want a badass street car that I can have a lot of fun with.
I'd want to turn it down a bit to keep me at 8.50s at the track since I'm only doing a 8pt cage but if I wanted to turn it up a bit and go faster, I want to be able to.
Here's what I was thinking
390ci
9.5:1 CR
-15cc Diamond Pistons
TFS or Allpro Heads 70cc
Vic Jr
4150 TB
Custom Cam by Martin
th400 (Converter?)
MWC 9" (Gears?)
What are everyones thoughts?
Last edited by B(o)(o)sted98TA; Jul 27, 2013 at 06:39 PM.
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After reading through a few more threads I think I might end up going with a 390. AES uses a -15cc piston in the 390, so what size CC would get me around 9.5-1 CR with a .041 thick head gasket?
Last edited by B(o)(o)sted98TA; Jul 26, 2013 at 01:25 PM.
Come on guys help a newb out...
I've also heard that you want to go with the smallest dish piston as possible because they tend to have a thicker ring land... So I was wondering why AES uses a -15cc? Would it be better to go with a -5cc and use a 68-72cc Head?
I've also heard that you want to go with the smallest dish piston as possible because they tend to have a thicker ring land... So I was wondering why AES uses a -15cc? Would it be better to go with a -5cc and use a 68-72cc Head?
The 390 will give you greater journal overlap than a 408 which will help in the boost reliability depaetment. I have always been told, all things equal, if you're going to be using both a piston and a head use the smallest dish you can and allow the heads to set your CR. I myself will be using a flat top -2cc and choosing my head accordingly to achieve desired compression.
As for the heads I was thinking about the 250cc, thoughts?
So people arent going with a 390 just because one company has customer service issues? That doesnt make any sense. I think id just buy the parts and have a reputable shop build me one.
Last edited by B(o)(o)sted98TA; Jul 24, 2013 at 08:08 PM.
I'm not positive but unless you buy the crank and pistons from AES, they will be custom units and drive your price up a bit to build a 390. A 390" motor will not be built with your normal aftermarket off the shelf parts. My opinion would be either buy from them or build something else to meet your goals. To run high 7's you will need a very well built setup, and probably be pushing the limits of a 4 bolt block....My suggestion is to build a 6 bolt block and be done with it. Then size the turbo accordingly to the cubic inches.
