1.7IE 16v (AR33) - specs needed - Alfa Romeo Bulletin Board & Forums
 
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 09-14-2005, 05:07 AM Thread Starter
Registered User
 
TBox's Avatar
 
Join Date: Sep 2005
Location: Belgrade, Serbia
Posts: 59
Garage
1.7IE 16v (AR33) - specs needed

Hi all!
I would much appreciate if someone could provide me measure of connecting rod (center to center) for mentioned engine.

I'm planning with my friend turbo conversion and these specs are vital for calculations and considering of conducting this project.

Thanks in advance!

Alfa Romeo 75 America 3.0 24v
www.arcs.org.rs
TBox is offline  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old 09-16-2005, 01:09 AM
Registered User
 
kaBOOM's Avatar
 
Join Date: Mar 2005
Location: Adelaide, South Australia
Posts: 141
Are you planning to alter the compression ratio of the motor by useing a shorter connecting rod? Or are you useing custom rods that are a lot stronger?

I don't have any 1.7 rods out of a motor at the moment, sorry!
kaBOOM is offline  
post #3 of 5 (permalink) Old 09-16-2005, 01:56 AM Thread Starter
Registered User
 
TBox's Avatar
 
Join Date: Sep 2005
Location: Belgrade, Serbia
Posts: 59
Garage
Well for the moment, everything is possible, but first we have to do is to determine which part of engine is best for altering compression ratio. Torque overall shouldn't go over 220-250 Nm, so structure and design of stock connecting rods should be satisfying. Relation between bore/stroke is ideal for high revs (yup, high revs with turbo ). If you divide bore/stroke; (87/72) - you get index above 1 (1.208) which is ideal for high revs and pointing to endurance, there we can go (probably) for shortening.

Yup, also if somebody can measure altitude from center of piston pin to top of piston would be good to know.

Alfa Romeo 75 America 3.0 24v
www.arcs.org.rs

Last edited by TBox; 09-16-2005 at 02:01 AM.
TBox is offline  
Sponsored Links
Advertisement
 
post #4 of 5 (permalink) Old 09-19-2005, 01:03 PM
Registered User
 
Sud_Oscar's Avatar
 
Join Date: Sep 2005
Location: Sweden
Posts: 3
Hello, quick estimation of conrod lenght (cc): 128.6 mm.
Piston height: 35 mm
Im also thinking of turbo for this engine, maybee with E85 fuel (85% ethanol, 15% gasoline) to avoid knock problems and the need for low CR. I know one swedish guy who put turbo on his 1.7 carburettor engine with E85 fuel. A lot of power......
Sud_Oscar is offline  
post #5 of 5 (permalink) Old 09-22-2005, 03:38 PM Thread Starter
Registered User
 
TBox's Avatar
 
Join Date: Sep 2005
Location: Belgrade, Serbia
Posts: 59
Garage
Thx for measures!

My friend says;
85% Ethanol 15% gasoline = 102 Octan RON
Take care, most of metal elements in fuel feed system doesn't perform good in interaction with methanol, including fuel tank. Example; if you drive with 1 bar boost with gasoline, you can go on 2 bar with E85. Question is how long will last with stock fuel injection components...

If we decide to go for Turbo conversion, I'll inform you step by step about our progress. Just to give you a clue; starting point is two smaler turbo's on IE boxer.

Alfa Romeo 75 America 3.0 24v
www.arcs.org.rs
TBox is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Alfa Romeo Bulletin Board & Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome