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Dynoed and no drop in Torque?

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Dynoed and no drop in Torque?

Postby eh? » September 8th, 2009, 8:58 am

Hi, First post. Great site I might add!
I currently have a 240sx with an RB25/ turbonetics 62-1 T3 with a gt35r .82 housing@ ~14psi/ aem ems
Anyway, I recently dyno'd and looking at my graph I was wondering why I don't have a sizeable TQ drop these engines usually have at the top end. The green line is the first run and the red is the second where I added a little bit of timing to the top end. Boost was oscillating and that's why it's wavy.
http://img31.imageshack.us/img31/1348/013hqz.jpg
Does it mean anything at all?
Turbine housing big enough?
Too little timing?

Any help is appreciated!
Thanks
http://www.rbforums.org Nissan RB engine tech site
eh?
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Re: Dynoed and no drop in Torque?

Postby El Verdugo » November 24th, 2009, 3:24 pm

I would be happy when an engine achieves this kind of flat WTQ line. Any head work to this set up?
What RPM did u achieve full boost?
Not sure what to say in regards to too little timing since u did not mention what it was. Also did you get to MBT when tuning?
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Re: Dynoed and no drop in Torque?

Postby TopMountGSR » March 26th, 2010, 5:32 am

Normally when I see a tq curve that continually rises it is because the boost is creeping.
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