race fuel in a ka - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

rps13kid · 02-25-2003, 01:47 PM

dose it make any difference if you put race fuel in a stock ka24e????

d240t2 · 02-25-2003, 02:13 PM

Yeah. You'll lose power, but your car will probably be just as fast, because your wallet will be lighter.

Unless you advance the timing, race gas won't give you any power. With advancing the timing, maybe you'll make 5hp over stock for $5 a gallon.

Dennis

rps13kid · 02-25-2003, 02:15 PM

how much do you have to adjust your timing and is it worth it,,i just want to try it because i have a sr20 comming in the next week

d240t2 · 02-25-2003, 03:06 PM

Well if you are just bored and want to try it...get a couple of gallons of whatever race gas you want to spend the money on. Then advance the timing till you hear it ping and back it off a bit.

I can't tell you how much to advance for a certain type of gas...that is called tuning.

Dennis

TrueSlide · 02-25-2003, 03:13 PM

I wouldnt use race gas unless your engine is pinging or knocking. Other then that your just wasting money.

Muzzy · 02-26-2003, 11:36 AM

maybe race gas is different but when i drop a little octane booster in my fuel in my 81 malibu it feels a little more squirty then if i had no octane booster

And i can tell easily if someone put low octane fuel in my car like 87....

my .02

*AceInHole* · 02-26-2003, 11:42 AM

well, if he's talking about using race gas with an SR20, he'd just be able to up the boost a bit more "safely", that's all...

AKADriver · 02-26-2003, 11:49 AM

Race gas in a KA24E...

It'll run, poorly. Power will drop significantly, even if you crank up the timing.

Pointless.

Muzzy · 02-26-2003, 10:04 PM

are u saying its pointless to use race fuel or just pointless in a weak ka24e

*AceInHole* · 02-26-2003, 10:12 PM

Quote:

Originally posted by Muzzy
are u saying its pointless to use race fuel or just pointless in a weak ka24e

It's pointless in a weak ka24e

You'd have a use for it with:
1. extremely high compression ratio
2. high boost
3. minimally with advanced timing

litlespic · 02-27-2003, 06:27 AM

The way I have heard it explained is the more octane, the slower burn, and the more heat it can endure until ping's.. so that is why race cars with timing, boost's, nos.. so that they can run MORE or what they do already with out ping.. I have always been told to run the least octane with out pinging.. that will result in the best performance.. but whatever works for you..

uiuc240 · 02-27-2003, 09:30 AM

one more thing:

C116 is leaded. run that and you'll kill your 02 sensor and your catalytic converter. yay! all that for .5 hp (after adjusting timing)

Eric

TrueSlide · 02-27-2003, 01:33 PM

Quote:

Originally posted by litlespic
The way I have heard it explained is the more octane, the slower burn,

Thats about right(pretty close), the higher the octane the harder it is to burn, when you have really high compression/boost and then lets say you drop to 87 octane, the gas ignites under pressure/compression causing a "knock" or "ping" The higher the octane the harder it is to ignite.

SRKperformance · 02-27-2003, 02:11 PM

one word.....waste

kerv · 02-27-2003, 05:14 PM

Yea, why do that?

02-25-2003, 01:47 PM	#1
rps13kid Zilvia Junkie Join Date: Feb 2003 Location: GrEeN BaY WI Age: 41 Posts: 415 Trader Rating: (0) Feedback Score: 0 reviews	race fuel in a ka dose it make any difference if you put race fuel in a stock ka24e???? __________________

02-25-2003, 02:15 PM	#3
rps13kid Zilvia Junkie Join Date: Feb 2003 Location: GrEeN BaY WI Age: 41 Posts: 415 Trader Rating: (0) Feedback Score: 0 reviews	how much do you have to adjust your timing and is it worth it,,i just want to try it because i have a sr20 comming in the next week __________________

02-25-2003, 03:13 PM	#5
TrueSlide Leaky Injector Join Date: Feb 2003 Location: Virginia Age: 41 Posts: 51 Trader Rating: (0) Feedback Score: 0 reviews	I wouldnt use race gas unless your engine is pinging or knocking. Other then that your just wasting money. __________________ Real men drive s13s. #240sx on EFnet

02-26-2003, 11:36 AM	#6
Muzzy Zilvia FREAK! Join Date: Jan 2003 Location: TX Posts: 1,555 Trader Rating: (0) Feedback Score: 0 reviews	maybe race gas is different but when i drop a little octane booster in my fuel in my 81 malibu it feels a little more squirty then if i had no octane booster And i can tell easily if someone put low octane fuel in my car like 87.... my .02 __________________ lemme have a dollar

02-26-2003, 11:42 AM	#7
AceInHole Autox Technician Join Date: Dec 2001 Location: New Haven, CT Age: 44 Posts: 3,961 Trader Rating: (0) Rides Gallery: AceInHole Feedback Score: 0 reviews	well, if he's talking about using race gas with an SR20, he'd just be able to up the boost a bit more "safely", that's all... __________________

02-25-2003, 02:13 PM	#2
d240t2 Zilvia Member Join Date: Mar 2002 Location: Atlanta, GA Age: 44 Posts: 205 Trader Rating: (0) Feedback Score: 0 reviews	Yeah. You'll lose power, but your car will probably be just as fast, because your wallet will be lighter. Unless you advance the timing, race gas won't give you any power. With advancing the timing, maybe you'll make 5hp over stock for $5 a gallon. Dennis

02-25-2003, 03:06 PM	#4
d240t2 Zilvia Member Join Date: Mar 2002 Location: Atlanta, GA Age: 44 Posts: 205 Trader Rating: (0) Feedback Score: 0 reviews	Well if you are just bored and want to try it...get a couple of gallons of whatever race gas you want to spend the money on. Then advance the timing till you hear it ping and back it off a bit. I can't tell you how much to advance for a certain type of gas...that is called tuning. Dennis

02-26-2003, 11:49 AM	#8
AKADriver Post Whore! Join Date: May 2002 Location: Springfield, VA Age: 43 Posts: 3,518 Trader Rating: (1) Feedback Score: 1 reviews	Race gas in a KA24E... It'll run, poorly. Power will drop significantly, even if you crank up the timing. Pointless.

02-26-2003, 10:04 PM	#9
Muzzy Zilvia FREAK! Join Date: Jan 2003 Location: TX Posts: 1,555 Trader Rating: (0) Feedback Score: 0 reviews	are u saying its pointless to use race fuel or just pointless in a weak ka24e __________________ lemme have a dollar

02-27-2003, 06:27 AM	#11
litlespic Leaky Injector Join Date: Jan 2003 Location: Chesapeake, VA Age: 40 Posts: 55 Trader Rating: (0) Feedback Score: 0 reviews	The way I have heard it explained is the more octane, the slower burn, and the more heat it can endure until ping's.. so that is why race cars with timing, boost's, nos.. so that they can run MORE or what they do already with out ping.. I have always been told to run the least octane with out pinging.. that will result in the best performance.. but whatever works for you.. __________________ 88 Merkur, just a little 2.3

02-27-2003, 09:30 AM	#12
uiuc240 Nissanaholic! Join Date: Apr 2002 Location: Naperville, IL Age: 46 Posts: 2,093 Trader Rating: (0) Feedback Score: 0 reviews	one more thing: C116 is leaded. run that and you'll kill your 02 sensor and your catalytic converter. yay! all that for .5 hp (after adjusting timing) Eric __________________ 2002 Mazda Protege5 1989 S13 w/SR20DET (sold)

02-27-2003, 02:11 PM	#14
SRKperformance BANNED Join Date: Jan 2003 Location: Long Beach, CA Age: 41 Posts: 250 Trader Rating: (0) Feedback Score: 0 reviews	one word.....waste

02-27-2003, 05:14 PM	#15
kerv Leaky Injector Join Date: Jul 2001 Location: Canada Posts: 119 Trader Rating: (0) Feedback Score: 0 reviews	Yea, why do that? __________________ Kerv 89 Nissan 240sx FB Alberta Canada