My Journal : 335i N54 Turbo Ugrade

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After 2 visits to MPS in a month, Manjee's brother (don't know his name), told me that the GY F1 A2 has more tendency to "go out of round" (causing vibrations at high speed) which needs to have the tires slightly adjusted in the rims and a higher tendency to lose alignment settings. Both of which happened to me. Having said that, I would also attribute my woes to dropping into sizeable potholes.

He also mentioned straight line tracking is not as accurate.

But then he was comparing it to the PSS... But then this is comparing something which is 4k+ vs 6k+ for 4 corners (for 19")?

Oh, for the GY F1 A2, I find they are very sensitive to low tire pressure - make sure the pressure are right. Mine worked best when I follow the "insane" tire pressures recommended by BMW on my E93 (260 F and 290 R).
 
What does 260 and 290 translates to in psi? I run 36F and 38R.

Oh ya,forgot.I run 225/40-18 and 255/35-18 respectively,I guess the recommended pressures will be different to your 19s.
 
Wow, thats pretty high, m on 34 psi front n bak, 245/35 19 n 275/30. Current set up works well 4 me.
 
That's 38 and 42 psi !!! On 225/35-19 and 255/30-19.

And that's the recommended pressure for E93. Yeah, I thought it was quite insane.
 
Updates provided as @ 12/7/12. Moderators please close thread if appropriate.
 
cosmo;742451 said:
16/5/12 - WOT yeehaaa!, got the green light yesterday and oh my, car flying and feels lighter. Turbo spooling sounds like a superharge M3, hahaha. Saw supergripen's car behind MSD yesterday, nice mod by the way. Next update will be the last. Cheers!
12/7/12 - Final UPDATE! Just changes spark plugs and boost sensor. Ordered new coils and injectors just in case. Remember to change your injector values using INPA, Princevick can help you with this. The car runs phenomenal and power is 300-330whp @ 3-3.5k rpm climbing to 4XXwhp with 5X tq/kg @ 6+k rpm, Car wheel spins like mad and power never ends. Fortunate for me the petrol consumption is abt 400km for full tank with mix of casual and spirited driving. MSD sales guys took it for a spin and the smile on their faces tells it all, ask them for a 3rd party testimonial. Thanks for reading and Moderator please close thread if applicable.

WoW 400+ whp with supersonic sound is just orgasmic!! Congrats bro!!

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Hope this thread is not closed..
 
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