 Compression Test ST202, 3SGE |
 Jul 22, 2009 - 2:46 AM
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Enthusiast Joined Dec 10, '07 From italy Currently Offline Reputation: 0 (0%)  |
I should provide a "cylinder compression test" on my celica ST202 year 1999 (3SGE engine)
could someone give me the "correct standard results" please ? |
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Replies
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Dec 23, 2009 - 11:50 AM
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 Enthusiast  Joined Apr 24, '08 From Orange County, CA Currently Offline Reputation: 33 (100%) |
ya but heres the thing! Since the 4th gen 3sge was not brought to the U.S. and was only available in Japan In order for the engine to run at its full 197hp potential it needs a minimum 100Ron = 94 Octane. the beams engine does not have knock sensor so running 91 octane is not acceptable, but no one has yet to answer my question. Can I use 91 octane for daily driving, as long as I keep the revs under 4,000 rpm,dont run my car fast and slightly retard the timing, or will that damage my engine while having a 13.5:1 compression ratio engine??
I know that the USDM integra type r has compression ration of 10.6:1 and the jdm 98 spec has 11.5:1 compression ratio. the usdm of course has an electornic knock sensor and the jdm uses 94 octane only, while the usdm b18c5 engine has a knock sensor, uses 91 octane and looses about 3 hp. just thought i should throw that out there... This post has been edited by BonzaiCelica: Dec 23, 2009 - 12:21 PM -------------------- Group buy to replicate Narrow E series transaxle parts
http://www.6gc.net/forums/index.php?showto...p;#entry1107514 Items for Sale: http://www.6gc.net/forums/index.php?showto...p;#entry1107572 |
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Dec 25, 2009 - 12:52 AM
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 Moderator Joined Nov 5, '07 From New Zealand Currently Offline Reputation: 3 (100%) |
QUOTE (BonzaiCelica @ Dec 24, 2009 - 5:50 AM)  ya but heres the thing! Since the 4th gen 3sge was not brought to the U.S. and was only available in Japan In order for the engine to run at its full 197hp potential it needs a minimum 100Ron = 94 Octane. the beams engine does not have knock sensor so running 91 octane is not acceptable, but no one has yet to answer my question. Can I use 91 octane for daily driving, as long as I keep the revs under 4,000 rpm,dont run my car fast and slightly retard the timing, or will that damage my engine while having a 13.5:1 compression ratio engine?? I know that the USDM integra type r has compression ration of 10.6:1 and the jdm 98 spec has 11.5:1 compression ratio. the usdm of course has an electornic knock sensor and the jdm uses 94 octane only, while the usdm b18c5 engine has a knock sensor, uses 91 octane and looses about 3 hp. just thought i should throw that out there... we have both 3sge engines over here and our fuel (Ron 91 95 98) all are regularly available. if you where running the standard compression you could run 91ron, but since you want to run a crazy 13.5:1 CR I wouldn't run anything lower than 98, in fact I dont know if that'll be safe 
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Posts in this topic
blumav Compression Test ST202 Jul 22, 2009 - 2:46 AM
Rusty the compression ratio is 11.0 for the beams and 10... Jul 23, 2009 - 1:04 AM Mstoochn 200 on the dot is ideal for avg km's, lower th... Jul 23, 2009 - 2:09 PM blumav thank you very much
i have the 3gen, and what a... Jul 25, 2009 - 2:37 AM Rusty QUOTE (Mstoochn)200 on the dot is ideal for avg km... Jul 25, 2009 - 2:59 AM blumav 10.3 with which units of measurement? Jul 25, 2009 - 4:19 AM Rusty ^thats the compression ratio mate Jul 26, 2009 - 1:45 AM blumav If the engine has 37,000 miles truthful and is in ... Oct 23, 2009 - 7:01 PM Rusty my guess would be close to new, maybe around the ~... Oct 23, 2009 - 10:21 PM blumav yes thanks send me a pm Oct 23, 2009 - 10:29 PM Rusty pm'ed Oct 24, 2009 - 12:18 AM BonzaiCelica I was looking at different fuel options since in C... Dec 22, 2009 - 12:11 PM Smaay get ready for a heart attack. VP pump stations are... Dec 22, 2009 - 2:38 PM BonzaiCelica ahh haha ya i know. But if my celica becomes my we... Dec 22, 2009 - 9:26 PM Mstoochn i have a 55 gallon drum of sunoco 108, it cost me ... Dec 22, 2009 - 11:39 PM Bitter cams and ignition timing can let you run higher co... Dec 23, 2009 - 8:30 AM jeffrosie i have a 55 gallon drum of sunoco 108, it cost me ... Dec 23, 2009 - 9:23 AM
BonzaiCelica grrr I guess nobody knows the answer to my ques... Dec 24, 2009 - 4:16 PM BonzaiCelica well since i plan on doing a complete engine rebui... Dec 25, 2009 - 5:43 AM Bitter R+M/2=P
RON+MON/2=PON
what you see on the pump i... Dec 25, 2009 - 10:47 AM
BonzaiCelica ya i know all there is to know about ron and motor... Dec 25, 2009 - 4:55 PM |
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