{"id":11083,"date":"2016-02-25T19:24:56","date_gmt":"2016-02-26T03:24:56","guid":{"rendered":"https:\/\/rallyways.com\/?post_type=specialty&p=11083"},"modified":"2017-12-27T14:35:17","modified_gmt":"2017-12-27T22:35:17","slug":"fiesta-st-cobb-stage-3-power-figures","status":"publish","type":"post","link":"https:\/\/rallyways.com\/11083\/fiesta-st-cobb-stage-3-power-figures\/","title":{"rendered":"Fiesta ST COBB Stage 3 Power Figures"},"content":{"rendered":"

The 1.6 Liter engine in the Ford Fiesta ST is one brilliant little engine. At that size, when it comes to power outputs even after bolt-ons, you cannot have that big of expectations. Or can you? Let’s look at the RallyWays Fiesta ST COBB Stage 3.<\/h3>\n

The purpose of this article is to unveil the performance gains of my Ford Fiesta ST, aka #RallyFist. The comparison is from stock to COBB Tuning<\/a> Stage 3 for Fiesta ST.<\/p>\n

I had a pretty good idea of what to expect going from a completely stock Fiesta ST to Fiesta ST COBB Stage 3. Before I acquired my kit, there were already a few stories and videos going around stating average results. But, one thing is to read about others’ experiences and a whole other thing is to try it for yourself.<\/p>\n

Let me point out that this story got delayed. My original intention was to release this a while back. What happened was that the purpose of this project has always been about catering to the do-it-yourselfers out there. The idea is to empower those that are weekend mechanics like myself. You buy your Fiesta ST, Focus ST, Mustang EcoBoost, Subaru WRX or whatever, order stage packages from COBB Tuning, and install them in your garage. Of course, if you are not as confident with a wrench, you can still do the same\u2026 Just that you take the car and the parts to a pro shop to install them. Or you order through your tuning shop. You get the point.<\/p>\n

\"Ford<\/a><\/p>\n

The story got delayed a few weeks because after I was done with the installation I took the car to the dyno at HG Motorsports<\/a> in San Diego, only to discover I wasn\u2019t hitting the numbers because I had a boost leak. The issue was very simple, the clamps that hold the charge pipes to the COBB intercooler weren\u2019t tight enough.<\/p>\n

I thought they were, because I tightened them pretty well. But as rubber is, it compresses a bit more over time so the seal ended up too lose after a few heat cycles. The issue was a very simple fix, I just lifted the car and tightened them some more. This is something I\u2019ll know for next time. I think the best option is to tighten it all down nicely and then after a few hundred miles check again, after the system has settled in.<\/p>\n

After taking care of my leak I noticed this really high-pitch whistle I had gone away, and I was again in business.<\/p>\n

Now, don\u2019t let me scare you. The installation was straightforward and relatively easy. The parts all fit perfectly. You can learn more about the installation by reading some of the articles I\u2019ll list at the end of this story. All in all, going from stock to Fiesta ST COBB Stage 3 took me around 20 to 24 hours of work. This could likely be translated to 4-6 hours at a pro tuning shop. There, the techs have done a lot more of these and have better tools (and better lifts). But me, in my garage, and being as meticulous and as a perfectionist as I am, took me a little over 20 hours.<\/p>\n

\"Mike<\/a>
Mike Petruzzo of HG Motorsports setting up the RallyWays Ford Fiesta ST on the HG Motorsports dyno.<\/figcaption><\/figure>\n

So, I took #RallyFist (notice I always put the hashtag there. That\u2019s so you will go and search for it on social media) back to HG Motorsports where Mike Petruzzo was again happy to run the car one more time.<\/p>\n

Here comes the good part. The gains exceeded my expectations. See, from the research I had done, I was expecting to get an extra 25 horsepower and 50 LB FT of torque at the wheels.<\/p>\n

Ah, but I got more than that! Take a look:<\/strong><\/p>\n

Ford Fiesta ST COBB Stage 3 Gains:
\n30 HP \/ 80 LB-FT Torque (at the wheels)<\/h2>\n

That\u2019s very big and I\u2019m very pleased.<\/p>\n

Check out the video of the dyno run at HG Motorsports<\/h3>\n