 What's our stock compression... |
 Apr 10, 2008 - 4:07 PM
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Enthusiast  Joined Jan 20, '08 From East Coast Currently Offline Reputation: 1 (100%)  |
How much compression can our 5sfe cyl-head handle as far as pistons and decking are concerned? I can't decide on 9:1, 10:1 or higher?
This post has been edited by 6G96GT: Apr 10, 2008 - 4:07 PM |
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Apr 10, 2008 - 5:55 PM
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 Moderator Joined Oct 1, '02 From fall river, ma Currently Offline Reputation: 13 (100%) |
i would go 10.5:1 max, using 93 octane, minimum.
-------------------- Former Team 5SFTE pro member ;)
 13.6@108MPH, 5SFTE Powered |
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Apr 10, 2008 - 7:07 PM
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Enthusiast Joined Jan 20, '08 From East Coast Currently Offline Reputation: 1 (100%) |
QUOTE(presure2 @ Apr 10, 2008 - 5:55 PM) [snapback]663368[/snapback] i would go 10.5:1 max, using 93 octane, minimum. 10.5:1 - is that your max "safe" point? I want the max, but in the "safe" zone. What's after 93 octane? Racing Fuel? Thanks! |
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Apr 11, 2008 - 9:50 AM
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 Enthusiast Joined Dec 19, '07 From tx Currently Offline Reputation: 22 (100%) |
QUOTE(6G96GT @ Apr 10, 2008 - 7:07 PM) [snapback]663396[/snapback] QUOTE(presure2 @ Apr 10, 2008 - 5:55 PM) [snapback]663368[/snapback] i would go 10.5:1 max, using 93 octane, minimum. 10.5:1 - is that your max "safe" point? I want the max, but in the "safe" zone. What's after 93 octane? Racing Fuel? Thanks! Yeah but you should be fine if your tuned right and only ever use 93. That combination will make a big improvement in power too, especially if you do the cam upgrade and all the other little things you've been talking about. Do it - build an N/A monster man 
--------------------  ENGINE: '93 RC 3S-GTE/WRC CT-20b [18-20PSI] PERF: TRD/HKS/ARP/NGK/MSD/ACT/Blitz/STRI/APEX'i/TwosRus/GReddy/Magnaflo/KOYO SUSP: Tein/Bilstein/SusTech/ INT: SS-III SEATS/Toyota Hyper Sports EXT: WRC/TRD/404 QUOTE (lagos @ Aug 25, 2010 - 10:13 AM)  Its a safety feature so that people like you don't end up killing themselves or everyone around them. Slow down Paul Walker. 6GC Chat - Go there: [url="http://www.griffgirl.com/forum/chat/index.php[/url] |
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Apr 12, 2008 - 7:34 AM
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Moderator Joined Oct 1, '02 From fall river, ma Currently Offline Reputation: 13 (100%) |
QUOTE(DEATH @ Apr 11, 2008 - 10:50 AM) [snapback]663572[/snapback] QUOTE(6G96GT @ Apr 10, 2008 - 7:07 PM) [snapback]663396[/snapback] QUOTE(presure2 @ Apr 10, 2008 - 5:55 PM) [snapback]663368[/snapback] i would go 10.5:1 max, using 93 octane, minimum. 10.5:1 - is that your max "safe" point? I want the max, but in the "safe" zone. What's after 93 octane? Racing Fuel? Thanks! Yeah but you should be fine if your tuned right and only ever use 93. That combination will make a big improvement in power too, especially if you do the cam upgrade and all the other little things you've been talking about. Do it - build an N/A monster man its been done. research the name "jim snoodgrass" he made ~147whp, with engine management and all, shaved head, valve job, and one cam (exhaust IIRC) i would expect ~5-10whp more with the newer electronics, and newer motor. (his was a mr2 "5th gen celica equivlent" motor) -------------------- Former Team 5SFTE pro member ;)
13.6@108MPH, 5SFTE Powered |
Posts in this topic
6G96GT What's our stock compression... Apr 10, 2008 - 4:07 PM
6strngs I think stock compression ratio is 9.5:1 Apr 10, 2008 - 4:07 PM DEATH QUOTE(6strngs @ Apr 10, 2008 - 4:07 ... Apr 10, 2008 - 4:10 PM presure2 QUOTE(6G96GT @ Apr 10, 2008 - 5:07 P... Apr 10, 2008 - 4:11 PM
6G96GT QUOTE(presure2 @ Apr 10, 2008 - 4:11... Apr 10, 2008 - 4:30 PM 6G96GT Thanks Guys! Will do my best, "safely... Apr 11, 2008 - 6:50 PM 6G96GT one cam, so one was left stock? Do I look him up o... Apr 12, 2008 - 11:32 AM |
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