89 corolla GTS needs 92 octane gas?

[probemartin]

I just got my AE 92 GTS 2 wks ago. I would like to know do i need to fill 92 octane gas? or 87 is fine?
I read some information from 4age club, it recommended 92.
4A-GELU
Application AE92 (90-91)
General DOHC Belt
Valves per Cylinder 4
Capacity 1587cc
Bore x Stroke 81.0 x 77.0
Compression Ratio 10.3
Fuel Requirements 92(US) 100(Japan)
Chamber Flow cross flow
Max power (hp) 140 @7200 JIS*
Max torque (kg/cm) 15.0 @6000*

[toymaniac]

i put either 91, 92 or 94 in my two cars.......

[4Aaron GE]

Your compression ratio is about 10 points higher than ours, so yeah...
"she needs premium, dude! premium! dude!"

[probemartin]

oic, i'm thinking my car what wrong is it....she is getting not enough power........when i test drive the car 2 wks ago, the car is not like this.............Now the car is not slow, just not powerful like when I test drive it first time!

[GreyAE92]

Really? I just got an '88 gts and I haven't filled it up yet but I thought 87 was good enough for the 88/89's and 92 or 94 was needed for 90 and 91 gts's. I was planning on using 92 anyways, But I didn't think that 87 octane would harm the engine. Hmmmm...

[Lafora]

i run the crap out of my engine at track day using 87 and it's still intact.

it's all in ur head. aka placebo effect.

you only need high octane, when you have high c/r

[DerekDorifto]

Wrong, I have 8:1 compression but need high octane due to forced induction. Another situation in which you will also need a higher octane fuel
is if you advance your timing.

Originally Posted by Lafora

you only need high octane, when you have high c/r

[Lafora]

sorry, i'm NOT a boost guy.

so OBVIOUSLY when i was posting what i posted, i meant it in N/A form

just like 99.999% of AE92s out there on the road

[DerekDorifto]

Right, you're not. I say use 92, you aren't going to get rich by saving the 10 cents difference per litre. Still, if he just got it he most likely wouldn't know what the previous owner has done to the timing, it's very common to add 3 degrees ignition advance for a little more power on stock engines.

[ek-9]

then why not shell out a tad more for 94? just a few more cents/litre.

[DerekDorifto]

Personally I do, but the guy was asking if he should use 92 or 87 in the original post.

Originally Posted by ek-9

then why not shell out a tad more for 94? just a few more cents/litre.

[Lafora]

fuck that.

just go to racegas.com and order those 100 octane

hell i would if i drove my car only 500 clicks per year. :roll:

[probemartin]

4A-GELU
Application............... AE92 (90-91) ................(AE86 86-87, AW11)
General ...................DOHC Belt .....................DOHC Belt
Valves per Cylinder ...4 ..................................4
Capacity ...................1587cc .........................1587cc
Bore x Stroke ...........81.0 x 77.0 ...................81.0 x 77.0
Compression Ratio ....10.3 .............................9.4
Fuel Requirements ....92(US) 100(Japan) .........87
Chamber Flow ...........cross flow ......................cross flow
Max power (hp) .........140 @7200 JIS* ............130@6600 JIS*
Max torque (kg/cm) ...15.0 @6000*.................15.2@5200*

*These figures are not actual power ratings but ones posted in catalogs at the time of sale. On most 4A-GE engines, the power output was actually significantly lower than as stated in brochures distributed in Japan.

I got it in club4ag. Also, they have more cars info, if u drive different corolla, u can check out there!

[probemartin]

anyway, thx for reply!

[GreyAE92]

Your car is an '89. The compression ratio is lower as some have said so high octane is not needed. Only for the '90/'91 's. It won't hurt to use it though.