cranny... need yer help again with JDM tune

btf · Post by **btf** » Wed Dec 31, 2008 4:23 pm

just read the whole thread lol. thats one sick ride man. so i guess brian crower valves arent worth it... maybe the only next option for me is a JRSC. :twisted: . better start saving, im very very broke for a few years already :D . btw ddnt u consider an s/c? oh and a guy here in lebanon got an engine and tranny of an rsx-s. the guy has no idea that they fit the CTR, so their price was surprising. engine was sold for 1100 USD, and the tranny is up for sale for 400. im very surprised as expensive as mentioned in the thread. back on topic, happy new year and i'll datalog as soon as the weather clears

mcneil · Post by **mcneil** » Thu Jan 01, 2009 9:17 pm

Geeze Jeff, i didnt acctually read that whole thread, i was only there to see it all :P :P Had the pleasure of driving this car.. once... but hit limiter and lost privlages. but oh it was dame worth it!!!

btf · Post by **btf** » Mon Jan 05, 2009 3:45 pm

hey man i datalogged again. i was wondering if we can also add some timing to the other tune btftune(2)( the one where vtec engages on 4000). i'll do a 400m straight line test and see where the car's faster under the same conditions. i did two datalogs, a WOT and an almost useless other one i dunno if it helps hehe.

cranny · Post by **cranny** » Mon Jan 05, 2009 10:42 pm

updated 4500 calibration and timing added to the 4000 calibration. it seems to me for the fuel your running , you should be able to run more timing. but you need a dyno and data from it to get the most dude.

btf · Post by **btf** » Wed Jan 07, 2009 2:58 am

datalogged. question bro, i tried the default rsx cold air map and the stock CTR one. my CEL came on, it read something about the 02 sensor. when i uploaded my map again, the CEL went away. any ideas?

cranny · Post by **cranny** » Wed Jan 07, 2009 11:07 am

has somebody else been playing with your map? look at the last datalog compared to the new ones. running awful rich now for not changing anything fuel wise. i see your IAT temp is ALOT lower than it has been since we started this. whats it cold where you live now a bit? your car most likely needs a secondary o2 sensor , which at the moment is disabled in your tune. its not needed anyways. i dont know why , but for your setup and what fuel your running , it sees like you cant run very much timing.

maybe spunkter or hondata can chime in with perhaps why. or maybe im wrong.

btf · Post by **btf** » Fri Jan 09, 2009 1:44 am

well i think that the day i datalogged i was running low on fuel and went to a station that ddnt have 98 octane at the time, so i filled it with 95. isnt a drop in IAT a good thing? its cold now this time of year, coldest it'll get. I have to mention that the quality of fuel in this country isn't perfect. i mean it is 98 octane and some ppl have tested it, its just that sometimes its not as clean as it should be. Maybe i should use octane boosters? the IAT might drop a bit again because of the heatshield i'm going to install. about the timing, what does running more timing depend on basically?

btf · Post by **btf** » Fri Jan 09, 2009 1:45 am

oh and no, no one touched the maps.

mcneil · Post by **mcneil** » Fri Jan 09, 2009 1:17 pm

by running more timing you can gain a few horsepower, but only until it starts to knock, or detinate.

btf · Post by **btf** » Fri Jan 09, 2009 3:41 pm

yeah i got that, but what do u need to run more timing? i mean why cant i run more timing while other cars can. that was my question

cranny · Post by **cranny** » Fri Jan 09, 2009 5:36 pm

given your setup , im guessing its cause of the fuel your running but i dont know. i run 91 octane pump gas where i live and from my experience our fuel is shit here. and im running more timing than you with a stock k20a2 with a few bolt ons. as soon as i jack your timing even a little bit you get knock so. like i said , ask spunkster , get his insight perhaps. whens the last time you changed your plugs?

the cooler the air the engine is breathing the more timing you can run as well generally.

i had your fuel like dead on the whole rev range and now its as rich as 11.5:1 in places. thats a big difference.

cranny · Post by **cranny** » Sat Jan 10, 2009 6:56 am

for shits and giggles , try loading the k20aITR map onto your car , and datalog how it runs with it for me. given the fact you run 98 octane fuel and it is a JDM K20A , you should have no problem running the ITR map timing wise. your fuel might be off a bit of course. datalog the ITR map and post it up.

here:

btf · Post by **btf** » Sun Jan 11, 2009 2:32 pm

filled up with the fuel i regularly use. datalogged with the map again. and datalogged with the itr map. no knocks, apparently.

cranny · Post by **cranny** » Sun Jan 11, 2009 3:09 pm

see , fuel makes such a huge difference. which map made the car feel stronger , itr or btf?

btf · Post by **btf** » Mon Jan 12, 2009 11:33 am

car felt to have just slightl a bit more power in btf, but the itr map had a higher redline so that made up for it. if i'm not mistaken, there was no knocks at 8600 rpm. u think i can handle that much? or maybe even 8500?