S15 Clean up!

in Sponsors by Bardabe — September 14, 2011 at 1:21 am | 0 comments

This is a short post, just to show the difference between good welds and bad welds. A few months ago I had Angel from Flawless Rides of Escondido California bring me one of their show pieces a beautiful 2002 Nissan Silvia S15, problem was their previous tech had installed and attempted to modify a Stainless Steel manifold to make a nice Garrett 60-1 turbo fit nice. unfortunately for them the manifold kept cracking time and time again. To patch things up and make the car run correctly for the time being i set on a mission to But a new manifold to make the proper modifications, have the valve cover polished, install a Greddy surge tank, and clean everything under the engine bay up. this is how the car looked when it rolled in.

now time to show you the manifold, a big reason why you don’t MIG weld Stainless steel is because it crystallizes portions of the metal and contaminated particles on the inside of the manifold and around the weld. Another big reason is that with Mig Welding you have minimal temperature control, stainless steel does not like to get too hot it will go brittle if you do that. and to top things off, you don’t weld Mild Steel to Stainless Steel and expect it to hold a turbo under stress vibration and constant heating and cooling cycles. it just does not work. so here is a before and after.

This is what the car looked like after i put it all back together to it’s rightful glory and had it running properly, for the most part. Car will be back soon for some much needed supporting mods and a Dyno Tune!