dr_jekyll Posted May 31, 2010 Share Posted May 31, 2010 well i finalyy had my nat profesionally mapped today by ryan at 2bartuning . i took a trip across contry to surrey rolling road and im delighted with the results. the fuelling is now perfect. it was 14.6 at 85 all the way home and off boost the car feels far more responsive and light. the car was retimed and mapped at just under 0.5bar or 7psi but and made 379.7 bhp and 350 ftlb of torque the car was knocking slighly because of the poor fuel but ryan says on 99octane on the road it will make around 400bhp , and he also said that the enging is in good condition so im happy, i wasnt expecting to see more than 340 so id call that a total result top marks to ryan , top guy and i will definitely be using him again . ill post up my graphs tomorrow Quote Link to comment Share on other sites More sharing options...
tooquicktostop Posted May 31, 2010 Share Posted May 31, 2010 Good result, I have owned a couple of NA's and wanted to turbo them , you have proved if you have spent a few quid in the looks department of your NA you can get a good BHP output without a car change, the NA - T option is viable Quote Link to comment Share on other sites More sharing options...
Homer Posted May 31, 2010 Share Posted May 31, 2010 Excellent result Craig, really pleased for you Quote Link to comment Share on other sites More sharing options...
Ricky49 Posted May 31, 2010 Share Posted May 31, 2010 Nice going Quote Link to comment Share on other sites More sharing options...
nevins Posted May 31, 2010 Share Posted May 31, 2010 Thats great fella, glad its all ok and running tidy for you. Quote Link to comment Share on other sites More sharing options...
JamieP Posted May 31, 2010 Share Posted May 31, 2010 Nice one, what injectors are you running? Quote Link to comment Share on other sites More sharing options...
nevins Posted May 31, 2010 Share Posted May 31, 2010 Hows the clutch hold up now fella. Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted May 31, 2010 Author Share Posted May 31, 2010 cheers guys, thanks to homer for pointing out what a mess my map was and prompting me to get it done , its a different car now. that on a completely standard ge engine and 330cc stock injectors. the clutch is ok , not fullly run in yet though but getting better. Quote Link to comment Share on other sites More sharing options...
nevins Posted May 31, 2010 Share Posted May 31, 2010 Good news fella, you will have to take me out in it sometime. Quote Link to comment Share on other sites More sharing options...
Suprab1 Posted May 31, 2010 Share Posted May 31, 2010 Great results mate . I would consider upgrading the injectors though. Quote Link to comment Share on other sites More sharing options...
Scott Posted May 31, 2010 Share Posted May 31, 2010 400hp on 330's? Why do people say 430 is the max on 440's then? Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted May 31, 2010 Author Share Posted May 31, 2010 Great results mate . I would consider upgrading the injectors though. i was considering it but i was told today by one of the best in the buisness that my set up is as safe as houses considering i stay on 99 fuel Quote Link to comment Share on other sites More sharing options...
Homer Posted May 31, 2010 Share Posted May 31, 2010 400hp on 330's? Why do people say 430 is the max on 440's then? They don't (or shouldn't ) and it's not the max BHP on them, fuel pressure amoung several other factors play a part in the injector "size" vs power discussion. However I am a bit intrigued by the results, is the car running stock fuel pressure Craig? The dyno graph should explain a great deal. Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted May 31, 2010 Author Share Posted May 31, 2010 it had a new stock replacement fuel pump last yearbut still on the stock fpr. i was verry suprised as i was expecting low 300s , and by all acounts he said the dyno we used was known as a bit of a heart beaker. ill put the graphs up when i have time in work tomorrow Quote Link to comment Share on other sites More sharing options...
Smallshinyant Posted May 31, 2010 Share Posted May 31, 2010 Thats a top result. Congratulations. im going to go off and find out if there is a project thread for this then. Quote Link to comment Share on other sites More sharing options...
Jake Posted May 31, 2010 Share Posted May 31, 2010 380bhp from 330cc injectors at standard fuel pressure is impossible. Quote Link to comment Share on other sites More sharing options...
a98pmalcolm Posted June 1, 2010 Share Posted June 1, 2010 awsome mate! looking forward to seeing the power curve on the graph!! Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 1, 2010 Share Posted June 1, 2010 These are rolling road horses, they are usually quite different to real horses One only has to do the maths to see how 330 cc / min injectors on stock rail pressure can't give 380 HP. Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted June 1, 2010 Share Posted June 1, 2010 quality result craig, about time i get mine done ** checks for money in wallet** Quote Link to comment Share on other sites More sharing options...
Ryan.G Posted June 1, 2010 Share Posted June 1, 2010 Has anyone actually flow tested a set of 330cc injectors at 46psi .. They flow alot more than 330cc!! 330cc is what they flow at 38psi which is all the pressure a standard N/A reg runs at as it never goes into positive pressure. Add a Turbo to the engine and 7psi of pressure and the rising rate reg on the Supra's adds another 8psi of pressure to the rail which then makes the 330cc flow around 380cc. Same goes with the 440cc injectors on a TT when you run more boost than stock the rising rate reg add more pressure and the injectors flow more. Hence why i have seen over 440bhp from 440cc before. Ryan Quote Link to comment Share on other sites More sharing options...
Shane Posted June 1, 2010 Share Posted June 1, 2010 Has anyone actually flow tested a set of 330cc injectors at 46psi .. They flow alot more than 330cc!! 330cc is what they flow at 38psi which is all the pressure a standard N/A reg runs at as it never goes into positive pressure. Add a Turbo to the engine and 7psi of pressure and the rising rate reg on the Supra's adds another 8psi of pressure to the rail which then makes the 330cc flow around 380cc. Same goes with the 440cc injectors on a TT when you run more boost than stock the rising rate reg add more pressure and the injectors flow more. Hence why i have seen over 440bhp from 440cc before. Ryan I had a long with Pete Betts about this a few years ago when I was messing around trying to supercharge my NA and he said exactly the same. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 1, 2010 Share Posted June 1, 2010 Stock rail pressure of say 30 PSI, add 10 PSI boost, rail pressure goes to 40PSI via the reg, but the injector is seeing 10 pounds above atmo in the intake, so actual differential pressure at the nozzles is the same, thus flow rate is same as at atmo. Only by raising static rail pressure from X to Y PSI will flow change under boost or at atmo. Every TT reg I have tested has a 1:1 pressure ratio, do the N/A's have rising rate? Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted June 1, 2010 Author Share Posted June 1, 2010 my dyno graphs Quote Link to comment Share on other sites More sharing options...
Geo Posted June 1, 2010 Share Posted June 1, 2010 Top Result there bud. Good Figures. Quote Link to comment Share on other sites More sharing options...
Shane Posted June 1, 2010 Share Posted June 1, 2010 Stock rail pressure of say 30 PSI, add 10 PSI boost, rail pressure goes to 40PSI via the reg, but the injector is seeing 10 pounds above atmo in the intake, so actual differential pressure at the nozzles is the same, thus flow rate is same as at atmo. Only by raising static rail pressure from X to Y PSI will flow change under boost or at atmo. Every TT reg I have tested has a 1:1 pressure ratio, do the N/A's have rising rate? I see exactly what you are saying re the intake presure being proportional. I seem to recall that I was told I would need a different FPR to provide the rising rate. Quote Link to comment Share on other sites More sharing options...
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