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The mkiv Supra Owners Club

bmw m3


mattanna
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How the f*ck do bmw get so much power from their m3 engines which are n/a and why couldn't toyota do the same for theirs, do the bm's have some special type of fuel or induction system, granted they are slightly more than 3.0 litre but not by much 1998 model was 321 bhp??? and only a 3.2

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All about the revs - loads of 'em! 286bhp (3.0), 321bhp (3.2) and 343bhp (3.2), but never much torque. I've driven the 286bhp E36 and the most recent E46 numerous times, and I do like them both very much, especially the E46. Sounds glorious and is very fast.

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How the f*ck do bmw get so much power from their m3 engines which are n/a and why couldn't toyota do the same for theirs, do the bm's have some special type of fuel or induction system, granted they are slightly more than 3.0 litre but not by much 1998 model was 321 bhp??? and only a 3.2

 

:yeahthat:

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will they have throttle bodies for a start and then they have a special vvt systen called vanos which is controled by a chain linked to the cam which on full throttle opend the valves longer and on the newer 3.2 have a (double) vanos which controles both cams so it pritty complex as the supra is just a normal inline six with norman induction and normal cams no vvti so to speak

 

hope all that made sense:search: :D

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Apparently the M3 sixes don't make quote power, but they aren't far off. The rumour that the 3.0 version is half a Macca F1 engine isn't that far from the truth, although that engine was based on the 5.5 litre V12 destined for the aborted M8.

 

Lots of revs, high compression and a good airflow with 6 throttle bodies help- but the question you should ask is- how do they make such an engine last so long? Ok the Vanos units pack up, but it's not terminal...

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The BMW engine was desinged from the ground up to be a high performance N/A engine hence they put in throttle bodies, trick cams, light internals, high rev limit, etc. The supra 2jz engine was desinged to be an engine with turbos hence it is designed differently so the supra N/A engine is basicly a turbo engine with no turbo's. :looney:

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How the f*ck do bmw get so much power from their m3 engines which are n/a and why couldn't toyota do the same for theirs, do the bm's have some special type of fuel or induction system, granted they are slightly more than 3.0 litre but not by much 1998 model was 321 bhp??? and only a 3.2
That's only 100bhp per Litre. Bike manufacturers would scoff at such a measly figure.

Yamaha are/were getting 120bhp from a 600cc R1 engine (probably more than that nowadays)

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What about the Supes that do have VVT-i, or is it just a case of its not as advanced, poissibly doesnt have as much control.......

 

A basic VVTi system only varies the cam timing. This is what you're getting on the 2JZ VVTi.

 

More advanced systems are able to vary cam timing, valve duration, and lift. This is VTEC or Toyotas VVTL-i (Variable Valve Timing and Lift (w/intelligence!)). Toyota/Yamaha's VVTL-i system on the current shape Celica, puts an extra 50bhp on top of the regular VVTi engines 140bhp. VTEC as we know gives 240bhp out of 2 litres.

 

I'd expect that the BMW VANOS system probably has more in common with these variable valve systems than the older more basic cam-timing only ones.

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Yeah, I suppose so, without forced induction

 

What about those big lazy yank V8s? Don't some of those make near to 100bhp/Ltr? (Not sure TBH)

 

 

No, not even close.

 

C5 5.7 corvette- 340bhp

C6 6.0 corvette- 400bhp

Z06 7.0 corvette 500bhp

8.0 Viper 450bhp

8.5 Viper 500bhp

 

It's probably why they call them lazy yanks lol! :D

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I hear the 'Vanos' system being mentioned - think this was nicked from Honda who call it Vtec as you are probably aware - they get 160 bhp from a little 1600cc engine and 200bhp from and 1800cc and nearly 300 from a 2500cc N/A as standard - so ze Germans aint so clever after all.

But being Japanese car fans you all knew this anyway - right?

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Apparently the M3 sixes don't make quote power, but they aren't far off. The rumour that the 3.0 version is half a Macca F1 engine isn't that far from the truth, although that engine was based on the 5.5 litre V12 destined for the aborted M8.

 

I can promise you that the BMW engine has nothing to do with a a Illmor produced F1 engine.

 

The closest link BMW roadcar engines have with F1 engines is that BMW wanted to use the fact that F1 was using V10 engines as a marketing platform for the V10 M5. That's why they threatened to pull out when F1 switched to V8's. Trust me, I got the memo. ;)

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I can promise you that the BMW engine has nothing to do with a a Illmor produced F1 engine.

 

The closest link BMW roadcar engines have with F1 engines is that BMW wanted to use the fact that F1 was using V10 engines as a marketing platform for the V10 M5. That's why they threatened to pull out when F1 switched to V8's. Trust me, I got the memo. ;)

 

Ahem, Mclaren F1 6.0 V12 3 seater road car?????

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