DJ_L3ThAL Posted February 19, 2003 Share Posted February 19, 2003 my r33 is stock atm except today im installing a K&N poddy, next will be the exhaust, what exhaust would you guys recommend and where should i get it installed ? as i wanna get the best performancew i can get out of a new exhaust except i dont want much noise, jetspeed had a 4" tip that seemed to have a valve u could open and close in it to make it louder and softer which is good for me except i want much bigger than 4" something like 5 or 6"s can any of you guys help me out plz ? Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-174010 Share on other sites More sharing options...
benm Posted February 19, 2003 Author Share Posted February 19, 2003 5 or 6" ? for the Rice effect im guessing ? Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-174017 Share on other sites More sharing options...
TomR33 Posted February 19, 2003 Share Posted February 19, 2003 I've checked my ECU serial number: MEC-R620 A2 5118. The car is 95 GTST but I'm not shore about the A/F ratio, never had it on a dyno. Tom Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-174033 Share on other sites More sharing options...
ed Posted February 19, 2003 Share Posted February 19, 2003 Originally posted by benm 5 or 6" ? for the Rice effect im guessing ? Ben, haven't you been told? For each inch over 3" it will give you about 10rwkw gains!!!! :eek: I'm saving up for a 12" muffler tip as we speak!!!! :lol: Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-174044 Share on other sites More sharing options...
akeenan Posted February 20, 2003 Share Posted February 20, 2003 5 or 6" ? for the Rice effect im guessing ? a 6' tip wtf? oh well?? :bahaha: Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-174155 Share on other sites More sharing options...
Guest INASNT Posted February 20, 2003 Share Posted February 20, 2003 you will be placed into the same class at the excel drivers with their huge loud exhaust's if u go with a 6" tip! Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-174215 Share on other sites More sharing options...
whatsisname Posted February 20, 2003 Share Posted February 20, 2003 Why stop @ the tip? Go for 6" all the way through, from turbo back baby Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-174321 Share on other sites More sharing options...
predator Posted February 20, 2003 Share Posted February 20, 2003 just pull the exhaust off completely... or route the dump to the side drag style. no back pressure at all Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-174337 Share on other sites More sharing options...
Guest INASNT Posted February 20, 2003 Share Posted February 20, 2003 Originally posted by predator666 just pull the exhaust off completely... or route the dump to the side drag style. no back pressure at all better still reroute the exhaust back into the cabin, so u will look fully sick when u r cruising and u will feel fully sick in the car 2!! :lol: Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-174363 Share on other sites More sharing options...
rev210 Posted February 20, 2003 Share Posted February 20, 2003 I guestimate the afr based on the amount of timing I can give the thing and the new information provided by the S-afc. Basically, you need very rich mixtures to enable lots of timing and if you run leaner mixtures (ala my new S-afc) you must peg back the timing. If I had 12's at the top end to begin with then I couldn't lean it off anymore than a few % at light throttle at 5000+rpm (just forget even full throttle). And I certainly couldn't run a base timing of 35deg +. 15 degrees is about it for 12/1 AFRs without some toluene. Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-174456 Share on other sites More sharing options...
Guest INASNT Posted February 20, 2003 Share Posted February 20, 2003 at 5000 rpm i got my s-afc set to -15% or so for a 12.1 a/f ratio Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-174482 Share on other sites More sharing options...
turbomad Posted February 20, 2003 Share Posted February 20, 2003 Rev210 why don't you put the car on a Dyno and set the SAFC up properly, what's all this guessing A/F ratio according to timing crap? Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-174623 Share on other sites More sharing options...
Steve Posted February 20, 2003 Share Posted February 20, 2003 Originally posted by turbomad Rev210 why don't you put the car on a Dyno and set the SAFC up properly, what's all this guessing A/F ratio according to timing crap? Its his toy, if he cant play with it the way he wants, why have it??? Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-174781 Share on other sites More sharing options...
Sir R33 Posted February 20, 2003 Share Posted February 20, 2003 so what have you guys got against the riceboy look, we do own japanese car so why not make our cars look like they should and have the 3 3/4'' exhaust with the huge chrome barrel muffler!!! Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-174925 Share on other sites More sharing options...
rev210 Posted February 20, 2003 Share Posted February 20, 2003 turbomad, Your right the AFR's guessing is crap. I don't give a rats arse what the AFR's are as long as the 'knock' and 'ping' situation is under control and the power is there. It's kind of like the rearwheel horsepower, I don't care to know. It actually won't make my car go faster knowing either. 'Tuning' the thing on a dyno makes a case for knowing but since I have yet to do so.... BTW,are you so sure I haven't set it up properly already without the dyno? I said before somewhere else there might be a little more (5-10HP maybe) I might get out for the dyno time. Dyno time is expensive and tuning the S-afc is pretty easy with the knock sensor read out. Does anyone remember the days of carby's and jetting? I never once did any 'dyno' tuning for that. I even tuned a Haletch F7B back in the days when it was new, without a dyno. Tuning 'properly' does not necessarilly = dyno. Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-175147 Share on other sites More sharing options...
Steve Posted February 20, 2003 Share Posted February 20, 2003 Originally posted by rev210 Does anyone remember the days of carby's and jetting? Unfortunately yes - got more than a few headaches trying to adjust mixtures on multi barrel carbs, and as for jetting, I dont even want to start...hehehe, that side was a nightmare. Steve Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-175163 Share on other sites More sharing options...
dojobi Posted February 20, 2003 Share Posted February 20, 2003 I'm sure some people can tune really well without a dyno, but to me it's a VERY handy tool that can save a hell of a lot of effort and produce consistently good results. Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-175181 Share on other sites More sharing options...
Steve Posted February 20, 2003 Share Posted February 20, 2003 MIC33R, you, me and 99.9% of people I would guess Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-175184 Share on other sites More sharing options...
rev210 Posted February 20, 2003 Share Posted February 20, 2003 MIC33R, hear what you are saying. Dyno's are a tool for tuning and like sidchrome sockets and spanners I can't afford one, or afford to use one. It is possible to get consistant results without the dyno in the same way as many people have got inconsistant results 'with' a dyno. Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-175216 Share on other sites More sharing options...
dojobi Posted February 20, 2003 Share Posted February 20, 2003 I suppose with or without a dyno, in the end it all comes down to the person doing the tuning. I went to Hills in Sydney because they have a good reputation for their tuning and they don't charge too much. Link to comment https://www.sau.com.au/forums/topic/10567-front-pipe-dump-pipe-beforeafter-dyno-results-203rwkw-stock-ecuturbo/page/3/#findComment-175224 Share on other sites More sharing options...
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