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Don't know any easy way to include boost data onto the dyno graph.. Any suggestions?
But, I leak-tested the intake and found few leaks, some of them significant. Boost builds sooner now and I needed to reduce boost solenoid DC to a mere ~21-22% to retain 1.2bar boost.
Also went to test cars with some friends, to my surprise car was quite fast in dragracing lol Beat my friends GSXR600 with relative easy (messed up the launch but caught him in 3rd quite easy) and also my other friends souped-up Audi RS2 (with Turbobandit turbo running at 2.2 bars, pushing 600+hp). Even though he used launch control in start and had AWD, I just lost perhaps half a car length during launch and caught him up with 3rd. Nice! Have videos too in FB, will check if I can get them to upload to youtube.
No, couplers did not leak, but I had a leak between intake flange and head on cyl4 and one failed hose clamp that connects charge tube from turbo to intercooler.
I get 1 bar now at ~4000 rpm, it is much better than before but still not satisfying tbh. I guess one of the reasons is that I have twin-scroll exhaust but undivided turbine housing. Will look for suitable divided turbine and try with that, have to get 1 bar before 3000 rpm
BTW, there was also an Audi RS2 with heavily modified engine (and big Turbobandit turbo running at 2.2 bars) and 600+ hp. At lauch he pulled ahead (though just ~1/2 car length) but I caught him quite easily in 3rd
Well, seems that I am slowly finding out the limits of stock parts. Added a bit of boost (1,4 bars, Virtualdyno showed 460 whp. Just as a reference, on the dyno the car showed ~394 whp at 1.2 bars, and VirtualDyno showed 389 whp at the same 1.2 bars) and after driving for two days in quite spirited way the headgasket blew when engine was at ~6000 rpm in 3rd gear. Combustion pressure entered into cooling system and the rad hose came off (that was left as a "fuse" not to break the rad).
Granted, the headgasket was reused from last time I pulled the head last autumn and wasn't in best shape even though it hadn't any significant miles on it.
I did order new headgasket from EBS and it should hold up just fine. Checked the pistons and cylinder bores too, not even slightest signs of detonation. That's good news I guess, driven all the time with pump fuel (98 here).
07-20-2015 | 11:09 AM
Beat my friends GSXR600 with relative easy (messed up the launch but caught him in 3rd quite easy) and also my other friends souped-up Audi RS2 (with Turbobandit turbo running at 2.2 bars, pushing 600+hp). Even though he used launch control in start and had AWD, I just lost perhaps half a car length during launch and caught him up with 3rd. Nice! Have videos too in FB, will check if I can get them to upload to youtube.
