GrantVr6 0 Posted October 21, 2015 Report Share Posted October 21, 2015 Hi, I am Grant from South Africa Background: Vr6 turbo charged 2.9 running on 100% ethanol, boosting 2 bar and car makes 407kw and 780 Nm.Problem: Car was fine for 2 years on 1.5 bar and ethanol but now I keep on melting number 3 and 5 piston on higher then 1.6 bar boost.What can I do to still make the power without melting the pistons. Link to post Share on other sites
Daverse 175 Posted October 21, 2015 Report Share Posted October 21, 2015 What map are you running? and are they standard pistons? What compression ratio are you running? Link to post Share on other sites
GrantVr6 0 Posted October 22, 2015 Author Report Share Posted October 22, 2015 Running stand alone management system with custom map. Forged pistons and compression ration 8.5:1 Link to post Share on other sites
mattvr6 133 Posted October 22, 2015 Report Share Posted October 22, 2015 Id be getting ur map looked at if its melting Pistons on certain cyclinders, maybe injector faults as well need it on a dyno c what's what Link to post Share on other sites
GrantVr6 0 Posted October 22, 2015 Author Report Share Posted October 22, 2015 Had it checked on the dyno and fueling and everything looks fine its only the back cylinders that melts. I had the injectors cleaned and tested. The fuel pumps checked and fuel pressure is fine. Link to post Share on other sites
mattvr6 133 Posted October 22, 2015 Report Share Posted October 22, 2015 A piston will only melt from extremely high temps fuel spark etc give stealth racing an email c what the have to say very good with charged vr6s GrantVr6 1 Link to post Share on other sites
UnitedMotorsport 55 Posted October 22, 2015 Report Share Posted October 22, 2015 What is the temperature of the exhaust gas pre turbo? Link to post Share on other sites
GrantVr6 0 Posted October 23, 2015 Author Report Share Posted October 23, 2015 Will drop them a mail thanks Link to post Share on other sites
Recommended Posts