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Guest Message by DevFuse
 

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Dyno results


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10 replies to this topic

#1 WJM

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Posted 08 April 2005 - 09:22 PM

Somehow we managed to loose the last run...looked very similar to run 5 tho...I hate we lost it. Was going to do one more run, but I decided to stop since its a tad lean... :-\ well, ok, a TON lean. :banghead: Looks like injectors go static at 4k...under 15 PIS steady. this time.

I atribute the 10/10 loss with the 3 way cat and 2 inch cat back...as before with no cat and 2.5 inch stright pipe, it was 10/10 more.

http://consumer.inkf...WJM/rx_run1.jpg
http://consumer.inkf...WJM/rx_run2.jpg
http://consumer.inkf...WJM/rx_run3.jpg
http://consumer.inkf...WJM/rx_run4.jpg

First three runs are on stock boost. 4th on 15 PSI. 5th...the one we lost, was also on 15 PSI. 6th run...ha...like I said, since it was lean, we didnt run a 6th time.

Ok, food and pack the car up...im tired too.

#2 Do It Sidewayz

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Posted 08 April 2005 - 09:53 PM

Yeah....i was fairly sure the injectors were going to 100% duty cycle.

and dude. WAY Too lean....you should be in the 11's for AFR ?!?!?!?!

I think around 12-13 PSI is where the injectors will his 100%....seems weird that subaru would fuel cut at that PSI doesn't it ;)


your stock boost is just about what my friend found today, when he threw the wideband on his car...it was real good...but that was 8 PSI of boost...anymore and it's gonna get intersting...he's also running catless exhaust, cone filter, and intercooler

#3 Do It Sidewayz

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Posted 08 April 2005 - 09:54 PM

oh yeah...didn't happen to hit fuel cut at around 5,500 rpm on the 4th pull did you?

#4 WJM

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Posted 08 April 2005 - 10:59 PM

it was the gremlin cut. that 1/4 of a second cutout that i have a problem with. the other 2 RX's and my wagon never did that. :confused:

However...if i pump it up another 1~2 psi...it will fuel cut...the REAL cut...as in, no fuel until boost comes back down.

I did tune it back down %4...which is about 1.5 PSI lower.

#5 Myxalplyx

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Posted 09 April 2005 - 03:52 AM

Good to see you are still at it Will and with air/fuel ratio info this time as well.

I'd be quaking in my boots with an air/fuel ratio like your 15psi run. Thank for showing that info. I know what I won't be trying to do. :brow: Your stock air/fuel ratio mirrors my last dyno run air/fuel ratio exactly. Interesting!

#6 avatar382

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Posted 09 April 2005 - 09:24 AM

Do you ping at 15 psi, Will?

I've always assumed that no ping = go for it! I guess I'm going to have a melted piston one of these days....

I have no idea what my AF's/EGT's are - I really need to get a gague installed... but my sparkplugs were white when I changed them out...

#7 WJM

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Posted 09 April 2005 - 05:52 PM

it WAY too lean to boost beyond 12 psi for track stuff...autox and SHORT (less than 5 seconds) busts are ok.

that was NOT ping. that was the fuel cut gremlin. notice how it goes FULL lean when it cuts?

#8 Do It Sidewayz

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Posted 09 April 2005 - 07:31 PM

just cause it's lean don't mean it'll ping..

Ping is detonation or preignition....

Lean is just that.....lean....it'lls run way hot and melt pistons....after a long pull you might ping ...

#9 WJM

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Posted 09 April 2005 - 08:34 PM

which is why there will be no more 13+ psi...i limit to 12~12.5.

#10 Myxalplyx

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Posted 12 April 2005 - 11:00 PM

Will,

Did you take the dyno run pics down already? Dang, I'm trying to reread, re-compare, re-note some info about your runs and they aren't coming up. Just trying to be sure it's not my internet connection.

#11 WJM

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Posted 13 April 2005 - 06:22 AM

they are still there. Maybe inkfrog went down for a few mins....?




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