ratt

kpr's starlet

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7 minutes ago, Truenotch said:

Oh wow! Which BMW engine are they from? 

most performance...the ones on my falcon.motor are from the m3 s54 motor but they came on the v8 and v10. can buy them all second hand... and the v8 ones are 2 separate banks...of 4 lol.have Thayer own TPS Thayer own injectors and rail and the IAC system.

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Love how clean it looks with those throttles! 

20V stuff is so messy looking. 

 

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may a well get a 3s now and run all the bearings

#bmw lyfe

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What an awesome run that motor has had! RIP in peace old chap 

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Awesome that you can buy a brand new crank, are most other parts still available new for 4A?

 

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Yeah parts are pretty easy to get.   can get most stuff from toyota.  otherwise aftermarket has it covered.

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So the big question what spigot bearing did you end up going with? 

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ain't  no time for that, just a squirt of rtv,   red of course

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Amazing result!

Gonna chuck the big boy throttles back on too for a look? Or happy as is? 

(Understandable!)

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Got them back on.  Need bit more testing,  but looking like same results all the way through.. 

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POWER DUCT.  all the hype.  none of the powa

 

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Hahaha Im so glad you chucked the mega long pipes on. Classic! 

I kinda wish it made epic power though so youd have to find a way to make it all fit :D

 

 

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Was actually keen to make some kind of extractor style intake, with the bellmouths / filter sitting in the big gap beside radiator. 

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As you cut it shorter, did you start to see a peak move around as you got closer to your normal intake? 

I guess curves facing up are the worst, because all of the flow gets biased towards the short side radius of your port so it has to do even more of a change of direction to get into the cylinder.

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measurements are the orange pipe length, not total runner.      can see the peak move up in rpm range as cut pipe down.  afr  was no where near perfect in any of the runs but close enough not to have a massive effect on power.   

Untitled.png.9bab0e36509e7c35eed388a965bbd86f.png

 

Red:  200mm run  from above chart , 
blue: removed the black bellmouth part,  making runner about 80mm shorter over the 200mm one
green: with only the silicone 45   deg joiner
pink:  ali pipe from my normal intake minus the  78mm trumpets/bellmouths.
 

forgot rpm scale in this one..
 

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Blue : ali pipe only as above
Green:  throttle bodies only
red:   normal setup
 

Untit.png.8a88bc3f67e5cf72437ee77009d1ff06.png

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Bouns  graph:    
the shopped line is done years ago when had stock cams in the car.    was done on same brand dyno,  but in 3rd gear not 4th,  which would have shown maybe another 5kw.  
still,  it shows with right setup  don't have  lose low down power with big cams.  

 

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