dyno results, 2.8L motor, M50 manifold

[jmott]

this was on a dynojet
328 motor, OBDI, no cats, stock headers

pullies, AA 3.5" cold air intake and euro HFM, M50 manifold, flowmaster muffler, lightweight flywheel.

tuned with an SMT6 piggyback computer.

http://www.slip-angle.com/hosted/dyno2.jpg

[Serious]

that thing is way too lean about 6.3k!!!!!!

[jrhaile]

hmm your cars setup is similiar to mine but i have custom software with s52 cams. I wonder what I would run... However, I lack the HFM. I plan to add a HFM, 3.5 ThrottleBody and a adjustable fuel pressure regulator like the bavauto. Anything else you're running?

[jmott]

that thing is way too lean about 6.3k!!!!!!

I don't think that jump is real. I have my own brand new AEM afr guage on the car and it didn't spike up there, in fact it indicates everything being a good bit richer across the board.

power curve is nice and smoothe and no detonation so I presume the tailpipe o2 sensor was just wahcky.

[jmott]

I have bigger injectors, but that isn't really relavant since I'm not making enough power to need them.

I imagine you will make the same power with the regular MAF. Only reason I got the bigger one was to leave more voltage room for piggyback tuning


hmm your cars setup is similiar to mine but i have custom software with s52 cams. I wonder what I would run... However, I lack the HFM. I plan to add a HFM, 3.5 ThrottleBody and a adjustable fuel pressure regulator like the bavauto. Anything else you're running?

[jrhaile]

Yeah there is a new dyno place opening up by my house this summer so I should be able to finally get a dyno done and see where I'm at. Those are pretty good numbers aren't they? I'm not too familiar with dyno results but I think a stock m3 only puts down like 210 correct?

[jmott]

I think stock m3s put down about exactly 200rwhp. These numbers are similar to other 2.8s I have seen with M50 manifolds and bolt ons.

took me a while to get the tuning sorted out since I was starting with a computer from a 325



Yeah there is a new dyno place opening up by my house this summer so I should be able to finally get a dyno done and see where I'm at. Those are pretty good numbers aren't they? I'm not too familiar with dyno results but I think a stock m3 only puts down like 210 correct?

[jrhaile]

good info.. I can't wait to go and see a good tuner...