User Login    
 + Register
  • Main navigation
Main Menu
Login
Username:

Password:


Lost Password?

Register now!
Fast Search
Slow Search

Advanced Search
Google Ad

Browsing this Thread:   1 Anonymous Users





rventura
New A12
#1
Just can't stay away
Joined:
2002/10/19 10:33
From Portugal
Group:
Registered Users
Posts: 108
Offline
Hello!
I'm going to "make" a new engine A12.
I need some tip's for the choises i have to make with a very low budget...

I have:
- engine, A12 (1973);
- two Solex C40 ADDHE (from Alfa75);
- 5 speed gearbox (B310);

My question's are:
Do you think that i need to do some head Work?
Biger valves?
Something else?
Thank's!

Posted on: 2006/8/22 13:34
Transfer the post to other applications Transfer


WhiteSedan
Re: New A12
#2
No life (a.k.a. DattoMaster)
Joined:
2004/7/15 12:10
From Adelaide, Australia
Group:
Registered Users
Posts: 3931
Offline
Be careful of the emissions carbs getting them lean enough without major hesitation.

Other than that, cam and head work to suit the carbs.

Posted on: 2006/8/22 13:41
_________________
cheap + fast = disaster
fast + reliable = expensive
cheap + reliable = stock

IPRA Build
Transfer the post to other applications Transfer


blofly
Re: New A12
#3
Home away from home
Joined:
2005/9/5 14:02
From Bunbury Western Australia
Group:
Registered Users
Posts: 668
Offline
and don't forget to fit some stronger springs for extra rev's

Posted on: 2006/8/23 3:55
_________________
Two things that drive me nuts.....a dry road under a grey sky and a wet road under a blue sky, because no matter what, it's either too soon or too late to drive the way I want
Transfer the post to other applications Transfer


rventura
Re: New A12
#4
Just can't stay away
Joined:
2002/10/19 10:33
From Portugal
Group:
Registered Users
Posts: 108
Offline
I'm going to put this spring valves.

Open in new window


A type strengthening valve spring Type - B from Pit-Road.
(9000rpm correspondence. Cam lift - 7.0mm correspondence)

This the A12 (normal) head...

Open in new window
Open in new window


And the Solex...

Open in new window

Posted on: 2006/8/23 8:33
Transfer the post to other applications Transfer


rventura
Re: New A12
#5
Just can't stay away
Joined:
2002/10/19 10:33
From Portugal
Group:
Registered Users
Posts: 108
Offline
Work, work, work...
Cleaning this weekend!

Posted on: 2006/8/25 17:18
Transfer the post to other applications Transfer


killer1200
Re: New A12
#6
No life (a.k.a. DattoMaster)
Joined:
2004/5/28 5:02
From Adelaide, South Australia
Group:
Registered Users
Posts: 1817
Offline
Around the valve steams on A12's is really S^^t so getting that done well goes a long way.

Talk to an good engine build and they'll tell you the ports a cam is where you get the power and if there really smart they'll tell you that valve spring are what stopping power be made in high HP engines.

Posted on: 2006/8/25 17:45
_________________
"Anyone who has never made a mistake has never tried anything new"

Albert Einstein

Put stupid oversized photo here>>
Transfer the post to other applications Transfer






You can view topic.
You cannot start a new topic.
You cannot reply to posts.
You cannot edit your posts.
You cannot delete your posts.
You cannot add new polls.
You cannot vote in polls.
You cannot attach files to posts.
You cannot post without approval.

[Advanced Search]