30 LB/Min at 20spi about right for a EVO16G?

[truwarrior]

I'm only flowing about 30-31 LB/Min at 20psi. Does that sound about right? Seems like some guys are flowing almost 40 LB.Min at 25psi...

I have a Hahn FMIC, hard pipe intake, apexi intake, and road race J pipe.

 

[scottsee]

Thats a little low for a evoIII. I looked in your profile and didn't see a logger, what are you using? do you have a tunning device too?

 

[truwarrior]

DSMLink. Full timing usually.

 

[scottsee]

Can you attach a log?

 

[shleppy]

with stock 2g head, cams and intake manifold thats normal at 20psi

 

[truwarrior]

Ok just want to make sure it's not the HAHN FMIC. I tweeked my boost controller and ran a boost leak test last night. Didn't find much but it appears to be pulling harder now. I'll get another better log.

 

[truwarrior]

Well looks like the turbo was creeping to 20 and falling off towards redline, new log today shows 33.3 LB/MIN with stock head and stock cams. Still my HP numbers seem low.

 

[GVR4592]

Why not increase the boost by a couple psi?

 

[truwarrior]

Because usually I do get some knock. Maybe it's phantom. Just don't wanna turn it up with out getting the water injection installed.

 

[GVR4592]

I would try increasing the boost and see if the knock is there. If it is then pull a little timing and see if it helps. You should be able to get 22-24 psi out of it before knock becomes an issue.

 

[scottsee]

Thats a pretty damn good log. Intemp & Cooltmp are good, timing curve is perfect. I also agree. Bump up timing from 3500rpm-7000rpm a couple deg and/or increase boost a few more psi. The reason your Boostest is falling off is becasue it follow AirFlowPerRev, and as you get past 5500 on the stock head/cams/intake VE really takes a dive. If you get a 3bar map I think you will see your still pulling 18-19-20 psi throughout your log. You should also try making a pull logging upto 7500 on that evo3.

 

[daren_p]

The lb/min you origionally posted seemed abit low at 30 for 20 psi but you new post of 33 seems a little better. I still have stock head with all supporting mods & I saw 33.XX @ 18 psi. Throw in a set of cams and you should easily see a couple extra lb/min. This is what I will be doing next to get the most out of the evoIII

 

[2gGSX]

I posted on your thread on DSMLink as well, but the last log I made showed a peak of just over 33 lbs/min as well.