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I thought I posted this earlier but I can't find the thread now. Just wondering if anyone has ever ran 110 octane race gas. The reason I asked is there is a sunoco by my house that has what says 110 octane racing fuel. But it says it's leaded is this bad?
 

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Yes you can use leaded race gas in your car. Infact most high octane fuels like C16 only come as leaded gas.

It will however slowly destroy your o2 sensors & cat converter (but no Supra owner has oem cats).

I have run 111 leaded blended with 91pump a lot and my stock o2 and wideband o2 are still working fine. But eventually I will have to replace them if I continue to run leaded fuel.
 

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I have knew this for quite some time and just wondering what the average milage running with 110 race gas before you will have to replace the wideband. If it can last me a whole year, I can pay $70 no problem to replace the O2 sensor
 

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I hate to do because I feel like an idiot but where is your o2 and wideband o2 sensors?
 

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lead adds octane, and most high octane (100+) fuels have it. Over time it will coat your 02 sensor and it will become inaccurate. It is however well worth it, you can run much more boost with the high octane.

It's essentially viagra for your car.
 

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Yes, Viagra or steroids;)

Steve K.
 

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Discussion Starter #8
How hard is it to replace an 02 sensor?
 

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lead adds octane, and most high octane (100+) fuels have it. Over time it will coat your 02 sensor and it will become inaccurate. It is however well worth it, you can run much more boost with the high octane.

It's essentially viagra for your car.
I can get my hands on 106 octane from VP racing fuels which is just 10mins from my house. i get to save my O2 and I don't have white inside my exhaust
 

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Discussion Starter #11
I can get my hands on 106 octane from VP racing fuels which is just 10mins from my house. i get to save my O2 and I don't have white inside my exhaust
do you buy it by the barrell?
 

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I thought I posted this earlier but I can't find the thread now. Just wondering if anyone has ever ran 110 octane race gas. The reason I asked is there is a sunoco by my house that has what says 110 octane racing fuel. But it says it's leaded is this bad?
I am in jacksonville as well. Which Sunoco are u talking about that has 110 leaded gas? There is a Sunoco on beach blvd that sells GT 104 unleaded, but nothing that is leaded. I would be very interested.
 

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I think you are just not finding the right sources for racegas in your area. How could a place like Jacksonville FL and vicinity NOT have speed shops, bike shops, tuners ...around here in the Philly area many of those kinds of places sell a variety of racegases.

If you're worried about lead, VP105 is unleaded racegas and has more than enough octane for any boost condition possible with stock twins. Here you can have 105 pumped into your car by the gallon or if you use enough, you can have VP ship a drum to your local shop if you have trouble receiving and storing it at home, then go pick up the drum and take it home; the local speed shop here will even store it for you like your private bottle of wine or liquor at your favorite restaurant and then pump it out for you for a slight storage charge. IMO fear of lead is totally blown out of proportion. I'm sure I've burned way over 100 gal of leaded and my original stock O2 sensor still works within range though it's gotten a little sluggish and will be replaced soon; for my wideband I got the NTK O2 sensor which holds up decently well to leaded.
 

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I also have a Sunoco about 2 miles from my house that sells 110 Leaded that I've been using for years. I used to run it mixed with 93 when I was BPU, but I'll probably run it straight this year, now that I'm single.
 

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I hate to do because I feel like an idiot but where is your o2 and wideband o2 sensors?
Stock O2 sensors are in the downpipe. Wideband sensor (if a wideband AF gauge has been added to your car) is wherever the bung was welded into the exhaust system, but almost always in the downpipe. The stock O2 sensors as well as the NTK L1H1 wideband sensor will last a LONG time on leaded fuel, especially if it's a mix of leaded and unleaded -- I've been running mine since 2001 on mostly leaded/unleaded mixes, but on straight leaded at times. The Bosch wideband sensors won't last very long.

If you go single you REALLY need a wideband, so be sure to budget for a good one such as the FJO with NTK sensor. Frankly I wouldn't even want to run a BPU car without a wideband, but that's just me.
 

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Discussion Starter #17
I am in jacksonville as well. Which Sunoco are u 5 talking about that has 110 leaded gas? There is a Sunoco on beach blvd that sells GT 104 unleaded, but nothing that is leaded. I would be very interested.
I think I'm going use the sunoco 104 unleaded for a while. I'm sorry it's not a sunoco it's a gate gas station. It's off 95 by the outlet mall heading towards st. augustine. I think it used to be a sunoco.

So what the best brand of wideband to get are certain ones better than others?
 

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So what the best brand of wideband to get are certain ones better than others?
IMO, FJO is the most reliable of any. There are cheaper ones that will probably get the job done, but I'm pretty confident that the electronics are not as rugged as FJO's. FJO makes their living building guidance electronics for military drone aircraft, and their wideband electronics are built to similar standards. Overkill perhaps, but insanely rugged.
 

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I chose the FJO for such reasons as above ...with the NTK O2 sensor since that's one of the most durable for lead exposure.
 

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i have a FJO and LOVE IT!!

If your on the stock twins and just running around town id run the 104 unleaded. However, if your doing any racing i just put a few gallons of 110 in the car. It will take a while before you do any damage to the O2 sensor. Ive been running 110 in my car for almost a year with no problems.

I also have a place that sells VP gas (100-116) 5 minutes from my house which is SO nice!
 
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