Hey guys i just have a question when running race gas should i do unleaded version or leaded reason i ask its rare that the race track here gets 101 or somehting in that range of unleaded but they do have like 110 up to 114 leaded. Let me know thanks

 

Use whatever is available to you. If you can't tune for it, then it won't matter. Raise your boost to make use of it, but are you even tuned at all yet?

Also, I've been biting my tongue, but have you realized the unbelievable number of threads you've started in the last week, none of which you did any searching first? Chill out for a while man and take it easy. Read, soak up info, and absorb it. Don't just post a new thread everytime you sneeze.

 

Ya there is another forme about this topic already. Hey warr doesnt leaded hurt your car in the long run...

 

It will erode your o2 sensor and cause it to fail over time. It also will destroy your cat if you have one.

 

Don't bother with running leaded race gas unless you are going to tune for it. Otherwise, you'll just lose power and (eventually) foul up your plugs, cat and o2 sensor. Better off to run unleaded fuels in such cases. VP MS109 works really well from what we've seen. It wont cost you power and it wont put your hardware through the ringer.

 

So if I have a o2 sensor thingy and I eliminated my cat it would be cool I can tune for it because I can have multiple maps on my fuel managnebt system Could I get huge gains at the track...

 

There is no o2 sensor thingy. You will foul it out with the use of leaded race gas, but it won't happen right away.

You have a tuning device with multiple maps already? I thought you just asked me yesterday how I can get you to 300whp for $1575. Also, if you have a sophisticated tuning device, I would assume you already know that you can get huge gains with race gas...what's the deal?

 

I asked you because I spent a lot more and I was wondering cause I spent lots more o well. I am having a brain fart i cant remember what it was but it allowed me to eliminate my cat and not get a cel.

 

That's a CEL fix for your rear o2, so it won't throw a code. That has nothing to do with this. Using leaded race gas will foul your FRONT o2 sensor, which is the one the car uses to regulate AFRs and run properly.

 

Thank you for clearing that up for me...

 

For grins.....what kind of gains have you fellas seen going from 103 unleaded to C16?

Or to word this differently, how much more boost and timing are you able to run....are you pulling more fuel out as well? How much?