mazman Posted October 25, 2002 Share Posted October 25, 2002 Hi, ive got a dual sbc and would like to know what settings you'se find the best. im trying to run the most 14psi for now. i use 38 ratio gain 10 and i forget about the name of the limit...but its also 10(i think its %)so if overboosting it reduces it by 10% its a Jspec engine and im running the turbos in TTC thanks for any help you'se can give Quote Link to comment Share on other sites More sharing options...
Alex Posted October 25, 2002 Share Posted October 25, 2002 Martin F has some settings which he )I believe) has been using for ages...He'll be along soon or you could PM him direct. Quote Link to comment Share on other sites More sharing options...
Branners Posted October 25, 2002 Share Posted October 25, 2002 Alex, do the same settings apply to the SBC-ID? I know it has the same 4 settings and I pretty sure it uses the same solenoids.... JB Quote Link to comment Share on other sites More sharing options...
Alex Posted October 25, 2002 Share Posted October 25, 2002 No they arn't the same....well not the same as Martin's version of the DSBC. Infact Martin nearly had a heart attack when I told him my settings as they are much bigger numbers! Quote Link to comment Share on other sites More sharing options...
Guest Martin F Posted October 28, 2002 Share Posted October 28, 2002 Originally posted by Alex Holdroyd Martin F has some settings which he )I believe) has been using for ages...He'll be along soon or you could PM him direct. Not quite so soon. Don't have my settings on me, but i will let you know. Only thing is mazman is in Ozz and i think he may need different settings due to warmer temps. Quote Link to comment Share on other sites More sharing options...
mazman Posted October 28, 2002 Author Share Posted October 28, 2002 Thanks Martin, as long as i get a basic idea where to start from. if need be,ill just change your settings by a little bit,but should be similar. cheers Danny Quote Link to comment Share on other sites More sharing options...
Guest Martin F Posted October 31, 2002 Share Posted October 31, 2002 I'm running : 1 - Gain = 20 Ratio = 40 Which gives me about 1kg\cm 4 - Gain = 20 Ratio = 76 Which gives me about 1.4kg\cm My warning is set to 1.45kg\cm. I only really use these two different settings. 1 for day to day driving and 4 for spirited moments. Quote Link to comment Share on other sites More sharing options...
Matt Harwood Posted October 31, 2002 Share Posted October 31, 2002 Mazman, are you running the stock ceramic turbos? I don't know what effect running it in true twin would have but if I used Martins 76 ratio, I think something would die quickly. FWIW, mines de-catted with a restrictor plate fitted, going on to a Hiper. I have a gain of 12 and my 1st ratio is set at 20, this gives me about 1 - 1.1 bar, and my second is set to 55, this gives me about 1.3 anything over this point, my EGT's start climbing above 900. My warning is set to 1.33 with a ratio drop (?) of 5 Like Martin, I only use the two settings. Quote Link to comment Share on other sites More sharing options...
mazman Posted November 1, 2002 Author Share Posted November 1, 2002 thanks guys,that very helpfull. i wont be running more the 1kg/1bar as i have the ceramic wheels. until i go single. i just wanna learn more about the gains../ratio ok,so ratio i understand,its to do with the amount of boost bleed. what would the difference be between the gain of 20 and 12? would the gain of 20 get the boost there quicker but with a more chance of a spike? cheers guys Danny Quote Link to comment Share on other sites More sharing options...
Guest Martin F Posted November 1, 2002 Share Posted November 1, 2002 Originally posted by mazman would the gain of 20 get the boost there quicker but with a more chance of a spike? Exactly that. More gain, more chance of a spike but the quicker you build boost. Quote Link to comment Share on other sites More sharing options...
Branners Posted November 1, 2002 Share Posted November 1, 2002 you have a peak hold on yours so whats the largest spike you have seen? My SBC-ID should be in the car when it comes back from having a new clutch so Im going to have to check all the settings and would be interested to know what sort of spikes you see. JB Quote Link to comment Share on other sites More sharing options...
Guest Martin F Posted November 1, 2002 Share Posted November 1, 2002 Who me ?? I am only seeing spikes about 1.46kg\cm, remember my warning (limiter) is set at 1.45kg\cm so that will try to knock boost back when activated. It's actually quite comforting as my Greddy P&Hold meter measures near as damn it the same peak as the DSBC. Quote Link to comment Share on other sites More sharing options...
Branners Posted November 1, 2002 Share Posted November 1, 2002 Originally posted by Martin F Who me ?? I am only seeing spikes about 1.46kg\cm, remember my warning (limiter) is set at 1.45kg\cm so that will try to knock boost back when activated. It's actually quite comforting as my Greddy P&Hold meter measures near as damn it the same peak as the DSBC. yes you hmm, thats a reasonable spike, I used to hit that as real boost in my import. I will try and keep my spikes below that when the car comes back. Will be nice to finally have a fast Supra again. 320bhp just isnt enough. JB Quote Link to comment Share on other sites More sharing options...
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