MAP Ultimate Duty Connecting Rods for Evolution VIII and IX
Jun 4, 2009, 05:47 PM
#1
MAP Ultimate Duty Connecting Rods for Evolution VIII and IX
Click on the image above for more information or to get a set of your own!
What Is Ultimate Duty?
Manufactured exclusively for MAPerformance by Howards Racing Components we developed these connecting rods to fulfill the needs of the hardcore enthusiast. Designed to handle 1000+ horsepower in a 4 cylinder application these truly are ultimate duty connecting rods!
Research & Development
The research phase for these connecting rods consisted of a process called Finite Element Analysis which helped us to determine the weakest points of the factory connecting rod design. Using that information we developed a prototype using state-of-the-art CNC equipment that included the finest high nickel AQ4340 billet steel material, Ampco 18 bronze wristpin bushings, Manton alignment sleeves, and massive 7/16" ARP 2000 series fasteners. In the final development phase the prototype was heat treated, fully stress relieved, and shot peened to ensure that no stress risers or surface imperfections remain. The end result: A 652 gram connecting rod that we feel is the strongest and most reliable steel connecting rod available on the market for this application.
Important Note: In order to increase bearing surface area and load capacity these connecting rods utilize rod bearings from the 1990-1992.5 6 bolt 4g63 (ACL Part # 4B1146H).
Guaranteed Unbreakable
We are so confident that these connecting rods will not bend or break that we are willing to guarantee it! If you bend or break one of these connecting rods from shear power we will reimburse you 100% of the purchase price.
Of course there are some stipulations with this guarantee as we simply cannot reimburse failures resulting from detonation, overheating, and/or lack of oiling. If you do manage to bend or break these bad boys we will need to see the rest of your engine components so that we can determine the cause of the failure! All reimbursements will be made at our discretion.
Want some proof?
Click the image above for more information on our shop race car which made 1009whp through an automatic utilizing the very similar 6 bolt DSM version of the MAPerformance Ultimate Duty Connecting Rods!
Last edited by maperformance; Jan 7, 2016 at 01:18 PM.
Sep 24, 2009, 07:51 PM
#4
Newbie
Join Date: Apr 2009
Location: THE BAY AREA, CALI
Posts: 71
Likes: 0
Received 0 Likes
on
0 Posts
^Nice thanks, I'm actually leaning towards your MAP Stage 2 shortblock now i'll give you guy's a call when it's time for me to pull the trigger gonna be doing a special build here in the west coast.
