Thinking of changing my frankenturbo, any opinions on which turbo that fits on "stock" manifold and downpipe has the highest power output per today? I see some sell k04 hybrids or gt turbo with 1.8t flanges rated at 400hp, is this really gainable without uprated cams and meth?
Tuning/mapping the engine, today I run the car without my N75, I have the n75-vacuum hose coming from the charge pipe running straight to the wastegate with an MBC in-line to set my boost pressure. I know that alot of you in here and other places dont like this but why is that? The way I have it now one click on the MBC is equal to 0,1 bar, very easy to adjust, when I ran mbc in paralell with the n75, one click would give maybe 0,2 bar more pressure, and 2 clicks and it would go down -0,1bar fex, it was really weird and annoying to adjust with mbc in paralell. Also like I have it now without N75 and mbc between chargepipe and wastegate I get sooner boost than with n75, and when it first start to boost I have full bost all the way till redline without dipping off, it boosts really hard. Using the n75 with mbc in paralell the boost can be slow, tapers off, overboosting, and what not.
So for you that are experience in tuning these engines what way is the best way to control boost pressure when mapping?
1. N75 with stock plumbing?
2. N75 with MBC in parallel?
3. No N75, vacuum straight from charge pipe to wastegate with MBC inline?
4. Or any other options?
My engine was remapped on dyno after fitting frankenturbo by preowner, when I got it it had mbc in paralell and set to 1,1bar, I have no idea why the tuner have used an mbc, are you not able to adjust boost with using the n75 stock without mbc?
And the last question, today I use NGK BKR7EKT1 gapped to 0,028" is this good for maxing out a k04 hybrid or what ever other stock fitment aftermarket high output turbo I would use or should I bring other plugs when mapping?
Tuning/mapping the engine, today I run the car without my N75, I have the n75-vacuum hose coming from the charge pipe running straight to the wastegate with an MBC in-line to set my boost pressure. I know that alot of you in here and other places dont like this but why is that? The way I have it now one click on the MBC is equal to 0,1 bar, very easy to adjust, when I ran mbc in paralell with the n75, one click would give maybe 0,2 bar more pressure, and 2 clicks and it would go down -0,1bar fex, it was really weird and annoying to adjust with mbc in paralell. Also like I have it now without N75 and mbc between chargepipe and wastegate I get sooner boost than with n75, and when it first start to boost I have full bost all the way till redline without dipping off, it boosts really hard. Using the n75 with mbc in paralell the boost can be slow, tapers off, overboosting, and what not.
So for you that are experience in tuning these engines what way is the best way to control boost pressure when mapping?
1. N75 with stock plumbing?
2. N75 with MBC in parallel?
3. No N75, vacuum straight from charge pipe to wastegate with MBC inline?
4. Or any other options?
My engine was remapped on dyno after fitting frankenturbo by preowner, when I got it it had mbc in paralell and set to 1,1bar, I have no idea why the tuner have used an mbc, are you not able to adjust boost with using the n75 stock without mbc?
And the last question, today I use NGK BKR7EKT1 gapped to 0,028" is this good for maxing out a k04 hybrid or what ever other stock fitment aftermarket high output turbo I would use or should I bring other plugs when mapping?