Advancing the timing on an R18 to run Premium

civicracer32 · 02-25-2008, 02:41 PM

Can it be done on the R18 like on older civics?

blueroadster · 02-25-2008, 02:57 PM

Quote:

Originally Posted by civicracer32

Can it be done on the R18 like on older civics?

Not at present since there is no engine management system available or even a piggy back at this time that would allow you the ability to adjust the timing. Granted, Greddy has their V-Manage that is suppose to provide this functionality, but I don't think it is available yet.

Ct_Sidan07 · 02-25-2008, 03:01 PM

^^^ he is talking about advancing the timing on the distrubutor...which i dont think they have

**ethlar** · 02-25-2008, 03:04 PM

no distributor on r18s, coil packs

if you run premium on the car it might advance the timing some automatically, but i honestly have no clue

SRT4toCivicSi · 02-25-2008, 03:27 PM

anything is possible with a tuning device, tuning, and money...

civicracer32 · 02-25-2008, 06:00 PM

Thanks guys.

SRT4toCivicSi · 02-25-2008, 09:07 PM

Personally I wouldn't do it unless you plan on making your car a race car of some sort. Plus, it'll void any warranty you have. Don't know if thats a concern for you or not though...

sandeep108 · 02-26-2008, 01:09 AM

The ECU will adapt somewhat. I do get a shade better performance when using premium.

Kidekat · 02-26-2008, 02:54 AM

Quote:

Originally Posted by sandeep108

The ECU will adapt somewhat. I do get a shade better performance when using premium.

Prove it....

Stick to 87. Unless you are boosted, on the bottle, or are running higher than factory compression.

OhondaU · 02-26-2008, 10:38 AM

Kidekat is right on. Your map will have a preset maximum advance it will run. If it detects knock it can retard the timing to prevent damage to the engine, but it won't advance it. Basically, it doesn't know you put premium in it, it just knows its not detonating.

sandeep108 · 02-27-2008, 01:09 AM

Quote:

Originally Posted by Kidekat

Prove it....

Difficult to. I just know that my engine feels smoother, quieter and with a bit more low end grunt with 'premium' than with regular.

Quote:

Originally Posted by Kidekat

Stick to 87. Unless you are boosted, on the bottle, or are running higher than factory compression.

I should qualify this by saying that where I live, while gas quality has improved, due to various factors, 91 is still possibly only 86-87. I actually mix 97 (yes, we do get 97 at a few pumps) with 91(87?) 1:3 and achieve this. It costs me about about 2 $ more per tank and have not observed any ill effects so I continue. But 97 by itself does not feel any much better than this mix and actually I feel the engine does not like it. At another pump, I do get ready 91 premium too, which has much the same effect as my mix.

I do suggest you try it for yourself and see, since IMO premium cannot otherwise harm the engine/fuel system.

02-25-2008, 02:41 PM	#1 (permalink)
civicracer32 Senior Member Join Date: May 2007 Location: SAN DIEGO Posts: 540 iTrader: 1 / 100%	Advancing the timing on an R18 to run Premium Can it be done on the R18 like on older civics?

02-25-2008, 03:04 PM	#4 (permalink)
ethlar n00b retro whore Join Date: Feb 2006 Posts: 10,832 iTrader: 5 / 100%	no distributor on r18s, coil packs if you run premium on the car it might advance the timing some automatically, but i honestly have no clue __________________ 8thCivic FAQ\|NEW Marketplace Rules

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02-25-2008, 03:01 PM	#3 (permalink)
Ct_Sidan07 Senior Member Join Date: Jun 2007 Location: Socal Age: 25 Posts: 685 iTrader: 4 / 100%	^^^ he is talking about advancing the timing on the distrubutor...which i dont think they have

02-25-2008, 03:27 PM	#5 (permalink)
SRT4toCivicSi Senior Member Join Date: Dec 2006 Location: Wherever the Air Force tells me... Posts: 3,563 Kendrick A. Hanson iTrader: 0 / 0%	anything is possible with a tuning device, tuning, and money...

02-25-2008, 06:00 PM	#6 (permalink)
civicracer32 Senior Member Join Date: May 2007 Location: SAN DIEGO Posts: 540 iTrader: 1 / 100%	Thanks guys.

02-25-2008, 09:07 PM	#7 (permalink)
SRT4toCivicSi Senior Member Join Date: Dec 2006 Location: Wherever the Air Force tells me... Posts: 3,563 Kendrick A. Hanson iTrader: 0 / 0%	Personally I wouldn't do it unless you plan on making your car a race car of some sort. Plus, it'll void any warranty you have. Don't know if thats a concern for you or not though...

02-26-2008, 01:09 AM	#8 (permalink)
sandeep108 Senior Member Join Date: Aug 2006 Posts: 123 iTrader: 0 / 0%	The ECU will adapt somewhat. I do get a shade better performance when using premium.

02-26-2008, 10:38 AM	#10 (permalink)
OhondaU Senior Member Join Date: Feb 2008 Location: Ohio Age: 25 Posts: 106 iTrader: 0 / 0%	Kidekat is right on. Your map will have a preset maximum advance it will run. If it detects knock it can retard the timing to prevent damage to the engine, but it won't advance it. Basically, it doesn't know you put premium in it, it just knows its not detonating.