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The mkiv Supra Owners Club

Cam timing and affects on the powercurve


Wez

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The lower torque and later spool on the new dyno graph i exspect was down to the way the boost was being controlled.

 

When i got it to 552bhp it was using a MBC and then the new 554bhp it was using an aem solenoid. I exspect it needs more duty lower down TBH but Wes got his original mapper to set this up as he is better with the software than me and actually likes AEM's :p

 

MBC @ 1.3bar then dropping to 1.1bar hence torque drop off

 

image

 

Aem Solenoid - Not sure on boost levels

 

image

 

Without cams - Holding 1.4bar

 

image

 

Can anyone over lay the 3 and maybe put on Homer t67 and ianc t67

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According to this

 

http://www.showoffyourcar.com//cars/TOYOTA/20925.jpg

 

I've got a 272 exhaust cam and it doesn't say anything about an inlet cam so I will assume its stock. I don't know what all the other gumph says but I know the tubby was a T67 sized HKS T04R with a worn bearing.

Heres the graph from Thor (yeah yeah yeah I know inflated power figures blah blah)

http://spicyweasel.com/bryan/image-cache/Bryan%27s%20Car/thor%20dyno_disp800.jpg

 

And the following day at Marlin motorsport

http://spicyweasel.com/bryan/image-cache/Bryan%27s%20Car/dan%20dyno_disp800.jpg

 

Dunno if thats of any help to the diagnosis here.

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