ITB?

kgaler · 08-02-2013, 06:49 AM

Could the new M4 engine have ITB and if so, what is the advantage?

mkoesel · 08-02-2013, 07:35 AM

Is it technically feadible? Sure. Is it likely given where BMW went with the S63Tu in the M5/M6? No, not in my opinion.

The advantage is sharper throttle response than a single throttle body. But Valvetronic essentially makes it a wash. I am not sure how the two compare in the areas of weight, cost, and reliability. I imagine there are trade-offs both ways. But since the N55 already has Valvetronic, that is the likely route. The only possible stumbling block would be making it work at nearly 8k RPM. But I think they will have figured that out.

fuddman · 08-02-2013, 03:38 PM

Quote:

Originally Posted by kgaler

Could the new M4 engine have ITB and if so, what is the advantage?

Or for that matter, could it have the F4G?

kgaler · 08-03-2013, 06:36 AM

F4G? What's that?

zuggerat89 · 08-03-2013, 09:04 AM

Quote:

Originally Posted by kgaler

Could the new M4 engine have ITB and if so, what is the advantage?

Maybe I'm a novice at this, but what is ITB? Individual Throttle Bodies?

fuddman · 08-03-2013, 09:39 AM

Quote:

Originally Posted by kgaler

F4G? What's that?

Attempted humor. But it used to be this:

Never Convicted · 08-03-2013, 09:52 AM

Quote:

Originally Posted by fuddman

Attempted humor. But it used to be this:

Those side vents are really ugly!

08-02-2013, 06:49 AM	#1
kgaler Second Lieutenant 13 Rep 220 Posts Drives: 135i DCT Join Date: May 2010 Location: CT iTrader: (1)	ITB? Could the new M4 engine have ITB and if so, what is the advantage? __________________ 2012 Alpine White 135i \| DCT \| Dinan Stage 3 \| ER Charge Pipe \| P3 Cars Boost Gauge \| Performance Suspension \| Terracotta Leather \| M Sport Pkg \| Premium Pkg \| Heated Seats \| Comfort Access \|
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08-02-2013, 07:35 AM	#2
mkoesel Moderator 7509 Rep 19,370 Posts Drives: No BMW for now Join Date: Jun 2006 Location: Canton, MI iTrader: (1)	Is it technically feadible? Sure. Is it likely given where BMW went with the S63Tu in the M5/M6? No, not in my opinion. The advantage is sharper throttle response than a single throttle body. But Valvetronic essentially makes it a wash. I am not sure how the two compare in the areas of weight, cost, and reliability. I imagine there are trade-offs both ways. But since the N55 already has Valvetronic, that is the likely route. The only possible stumbling block would be making it work at nearly 8k RPM. But I think they will have figured that out.
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08-03-2013, 06:36 AM	#4
kgaler Second Lieutenant 13 Rep 220 Posts Drives: 135i DCT Join Date: May 2010 Location: CT iTrader: (1)	F4G? What's that? __________________ 2012 Alpine White 135i \| DCT \| Dinan Stage 3 \| ER Charge Pipe \| P3 Cars Boost Gauge \| Performance Suspension \| Terracotta Leather \| M Sport Pkg \| Premium Pkg \| Heated Seats \| Comfort Access \|
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