What octane do you run your 7?

just curious...

I have an N/A sooo 87 it is.T2 are 91.

i have a T2, sometimes i hate paying for premium gas so i just buy regular unleaded. Am i going to pay the consequences later if i keep it up? HOw many times do you think is too much for me to keep putting 87 octane gas?

I mix 91 and 100.

wich is the same of 95.5 octane if mixed half and half ^^^^
i usually use 87 or 89

When I had my '86 N/A RX-7, I usually put in 87 octane. Now my brother owns it and I have no idea what he puts in it. I'm gettin' a 10AE pretty soon, and I'll be running her on 89 since it's cheaper nowadays.

I would not recommend running that 10th AE on 89.

I would run 91 if I could, but it's not available here. 89 is the highest we got, and we call it a luxury. I'd have to scoot all the way to Ames to get 91 or higher octane.

Obviously I live in a ghost town :)

Wow... Thats horrible..

87 right now, and 93 after i swap.

It'd be cool if you guys can say what kind of rx7 you guys drive and what octane you use for that car. Thanks

i have 87 FC N/A

86 FC n/a.. puttin 87 in that mutha.

My brother now owns my old 1986 N/A Sports model and I'm pretty sure he's paying for 87 octane.

Coming soon: 1988 10th Anniversary Edition, will put either 89 or 91 in it. There's a Casey's in Alden that should have 91, and I didn't even think about that before. If that's the case, then it's 91 all the way.

You can get away with 87 in a turbo model as long as you stay out of the boost. But of course it's tempting to rev high ;)

Yes, it is tough to stay out of boost, until you figure that it'll only manage 11mpg at best under full boost.

Gosh MD, you're so right. It is vvverrry tempting to rev high. So i guess from now on, ill start putting 89 or 91 in my T2. Well i guess it all depends huh. If im low on cash, ill probably get 87. Oh yeah, how many people in here think the Tornado is great for your car.

I drive a 10th Anniversary. If you dont know what that is, I am not going to explain it..

haha don't worry J i know what the 10th anniversery is.... very nice car man =)

Durrrrrrr what's a 10th anniversary? Is it a cake of some sort?

Beautiful car. It's nothing compared to the FD3S A-Spec, but it's pretty damn good looking.

yeah i wish i had a 10th ann....leather seats are so comfortable.

oh yeah today was the last day i would run 87 octane in the T2, i swear. Today was pretty damn cold for being in florida...32 degrees was our low. Well i ran it up today and of course, being that it was cold, it would not start perfectly and would kinda sputter while i was going, so i didnt care tooo much about that. After i pulled the keys out, my car was clicking like a biootch. I hate that noise. So from here on out, its 89 or 91! Thanks for all you guys inputs

definately use the highest available. im sure u could get away with anything, but why settle? if there is only 89 available, i would suggest some octane booster from pepboys.

32 degrees pfft it was 5 degrees here this morning and the gxl started up after the second crank :smokin: btw I have a 87 gxl with pacesetter header intake adapter 2.5 inch exhaust and no cat and I run 87 octane in it.

yeah, mine started on the second crank too, and i feel sorry for you guys up north. After all the hurricanes and what not, we got the better end of the deal. Anyway, i got my T2 pretty decked out. I'm not going to list all my mods on here but your 2.5 will seem like a little toilet paper roll compared to my 3 in. dual pipes.

I have an 89 NA that will be running on 93 octane... with a V8 engine under the hood.

Yeah the 2.5 isn't going to be staying for long after I get the 13bt rebuilt but it's big enough for a N/A engine.
We had really nice weather about a week ago, was about 60 degrees at night and high 60's low 70's during the day then all of a sudden it went cold

I have an 89 NA that will be running on 93 octane... with a V8 engine under the hood.


Out of curiousity... What mods to the pushrod engine are going to require you to run 93? Or is that just personal preference?

Gosh MD, you're so right. It is vvverrry tempting to rev high. So i guess from now on, ill start putting 89 or 91 in my T2. Well i guess it all depends huh. If im low on cash, ill probably get 87. Oh yeah, how many people in here think the Tornado is great for your car.
tornade is a waste of money.

yeah fc same here...good weather then cold weather. Im pretty sure cold weather over here in florida means jeans and a t shirt for you up north.lol. Hmmm.. i personally dont get why you did a v8 swap in an rx7. Isnt that what alot of people love about these cars? the fact that they're rotaries? They would be pretty quick though. And the tornado is a waste of money? Interesting because they rave about it so much on tv. lol

Lol the Tornado is just another way to rope in stupid people. It's just like the "Amazing Rainbow Art Set" that turned out to not be so amazing after all. My cousin had one and he had fun with it for a grand total of 15 minutes before it went into the back of the closet.

A good rule of thumb is that anything they say about a product on TV is usually 100% bullshit. You gotta actually get off of your ass for the good stuff.

guys, you should keep your money and run whatever the user manual says you should run, the ignition timing is setted for that type of gas, you're car will run better in the long run

if you get premuim gas you are wasting your money unless you have a 3rd gen and not even sure if they need it but the higher the octane the slower the burn and thats not always good using high octans gas lets you advance timing more with out pinging but other than taht you are wasting your money they already spit out unburnt fuel dont add to that

if you get premuim gas you are wasting your money unless you have a 3rd gen and not even sure if they need it but the higher the octane the slower the burn and thats not always good using high octans gas lets you advance timing more with out pinging but other than taht you are wasting your money they already spit out unburnt fuel dont add to that

does anyone else agree with kali?

if you get premuim gas you are wasting your money unless you have a 3rd gen and not even sure if they need it but the higher the octane the slower the burn and thats not always good using high octans gas lets you advance timing more with out pinging but other than taht you are wasting your money they already spit out unburnt fuel dont add to that

So I take it your premium where you live is 110 octane and it costs $10 a gallon?

Turbo motors need the high octane because of its knock resistance, something you would like to avoid unless you like replacing motors often.

the n/a engine should use lower octane (87 or 89 is fine).

89 TII with 91 octane... it has a SiAFCII that was tuned with 91... I put in 87 by habbit the first time and the idle went to crap

FD, using Premium...I thought that's the only fuel I can put in...and it cost so much now...

94 with ocatne booster.

does anyone know of a website that shows actual gains in octane achieved by different brands of octane booster such as STP and all the others?

I remember reading that it only adds like .5 or .05 points to the octane but I don't remember where I had read it from.

does anyone know of a website that shows actual gains in octane achieved by different brands of octane booster such as STP and all the others?

i know a guy doing mix, i'll try to dig out the information

the guy chuck-s4 knows alot about fuel mixes

http://www.montrealracing.com/forums/showthread.php?t=13041
this one is interresting
http://www.montrealracing.com/forums/showthread.php?t=101474

and i dont feel like translating this one right now, tell me if u need more info
http://www.montrealracing.com/forums/showthread.php?t=44578

Does anyone know why like exactly TII's need 91 octane or higher? I mean we all know because of knock resistence and everything, but why EXACTLY. How does the low octane ruin your motor and everything.