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		Toyota Nation Forum : Toyota Car and Truck Forums > Toyota Nation Forums > Hardcore Tech and Competition
octane requirement?

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Hardcore Tech and Competition Strictly HARDCORE tech info and questions and also autocross / racing discussion!

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10-01-2005, 09:48 PM	#1 (permalink)
94_Rolla_Guy One with the force Join Date: Sep 2002 Location: Toronto Posts: 1,391 Gameroom cash: $9800 Thanks: 0 Thanked 2 Times in 2 Posts iTrader Score: 0 reviews	octane requirement? have a 7A-FE that i want to run at (10.4 : 1) - (10.6 : 1) what fuel (octane) will i have to run? also if anyone has any comments or ideas on fuel control it would be appreciated.. __________________ Ah when she was in her glory, Not so nice anymore 358k 17years old her time is getting short ....

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10-02-2005, 12:56 AM	#2 (permalink)
Dr Tweak The Mad Scientist Join Date: Oct 2004 Location: Savannah, GA Posts: 848 Gameroom cash: $1700 Thanks: 0 Thanked 1 Time in 1 Post iTrader Score: 0 reviews	'91 at least. What are you planning on doing? Installing larger injectors and leaning it back with an SAFC or eManage is a good technique. -Doc __________________ -Dr Tweak, Toyota engine swap wiring expert extraordinaire Check out some of the swaps I've done at http://www.phoenixtuning.com/swaps.html

10-02-2005, 01:01 PM	#3 (permalink)
94_Rolla_Guy One with the force Join Date: Sep 2002 Location: Toronto Posts: 1,391 Gameroom cash: $9800 Thanks: 0 Thanked 2 Times in 2 Posts iTrader Score: 0 reviews	well i found that 7afe pistons have a 12cc recessed face while 4afe pistons are only 6.5cc and when you factor in the slight difference in compression hieght you come out with 10.4 to 10.6 depending on the head gasket thickness __________________ Ah when she was in her glory, Not so nice anymore 358k 17years old her time is getting short ....

10-14-2005, 09:17 PM	#4 (permalink)
fredk JUST RE ENGINEER IT Join Date: Nov 2004 Location: Eureka UT. Posts: 2,956 Gameroom cash: $14510 Thanks: 0 Thanked 1 Time in 1 Post iTrader Score: 0 reviews	93 all the way in the summer __________________

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