I just did a motor swap on my type r
I did a b20crvtec race motor built NA
dynoed at 220 hp

Problem is my sis put regular gas 89 octane
And she full tanked it!
Its hard draining gas
Im wonderin if it will be ok to leave it for now and just
go 93 octane later on.

Let me know wut u think and why
thanks

 

Get 93 octane and some octane booster. Baby the car for this full tank and hopefully it won't ping.

 

definitly not good depending on your compression ratio, which is??

 

It depends on your fuel and ignition maps and on your cr also. So I'll say it depends

 

Why did you sis fill your tank up?

 

You could always toss in a bottle of NOS octane booster.

 

Octane booster does nothing.

If you want to raise the octane level, drain half of the tank and put in as much of the highest octane race gas that you can get.

 

if your talking about throwing in 87 octane in a ITR,

the knock sensor should detect the detonation occuring and retard the ignition timing.

of course on a car without a knock sensor you can obviously damage something

oh yes, and i would suggest draining the fuel tank using a syphon


[Modified by Soup ****, 12:26 PM 9/6/2002]

 

Drain that pupy make your sister put a garden hose in the gas hole and suck it out that is the easyiest way to get the gas out then get 93

 

Jack up the car and remove the drain bolt.

That's the easiest way to remove the gas.

 

retard the timing a good bit.
drive nicely.
edit: COMMERCIALLY available pep boys type [/edit]octant boost does NOTHING unless you use a chitload.

if you want to run something to boost octane, use Toulene, MTBE or Xylene. Their respective R+M/2 octane ratings are: 114, 118 and 117. 10% Toulene in a 89 octane mix would get you up to high 91s or low 92s.


[Modified by SoFreshAndSoCleanClean, 12:43 PM 9/6/2002]

 

Do you have evidence to substantiate this "blanket" claim??

Read this:

http://www.gtatech.com/news_au_articl.html

Most of them do work - but the cheap ones don't.

 

I think he meant commerically available ones. In reality you need a good mix of 30% or more toulene, xylene, or equiv. to make a nicey nice difference.

edit: spelling.


[Modified by SoFreshAndSoCleanClean, 12:54 PM 9/6/2002]

 

 

How about that new stuff, "trinitrotoulene." I hear the "octane" is pretty high with that stuff.

If by CRVTEC you mean an actual CRV's B20 block, I'll assume you're not using a knock sensor. In that case you can either drain the pee-water out or you can retard your base timing a bit and drive like there's an egg between your foot and the throttle. If you have a bored out VTEC block and are using a knock sensor it is less critical, however caution is never regretted.

 

Better make your sister do the dirty work!

 

Syphon it out or add 110 and up Octane.