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Old 08-16-2008, 05:32 PM   #1
arrowscooby
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Default 18g 2.0 bugeye at 70000 miles - tuned by jesus!

was finally able to grab a hold of my dyno sheets. thanks to teddy at mavrik motorsports for digging them up for me. and thanks to jon (aka jesus) of hbspeed for the tune. car is a 2002 bugeye with 70,000 miles. tuned on mavrik's dynolog dyno, which i'm told reads about 20% less than a dynojet, so i'm making close to 300whp on 91 oct, and over 300whp on 93 if my car were tuned on a dynoject. stock sti's put down about 200-210whp on the dynolog dyno.

calicraptastic 91 oct map


91oct/100 oct map (effectively 93 oct)
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Last edited by arrowscooby; 08-16-2008 at 07:14 PM.
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Old 08-16-2008, 06:09 PM   #2
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10 second pass coming

70,000 miles, very nice
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Old 08-16-2008, 06:14 PM   #3
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Whats going on with the dip at 5300ish Rpms and then shoots back up? Knock?
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Old 08-16-2008, 06:32 PM   #4
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Other than the dip, THAT is the kind of torque curve I expect to see. I've been seeing them drop off a lot on recent graphs, and while people say it's normal, THIS one looks good. That's what I'm talkin aboot!
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Old 08-16-2008, 06:54 PM   #5
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not too sure about the dip - maybe someone can elaborate? i don't see any knock based on my knock light. it's a fairly conservative tune at 19psi peak.
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Old 08-16-2008, 07:10 PM   #6
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I am talking about the dip on the torque how it goes down and then goes back up... It shouldn't do that, Should be smooth transition down!
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Old 08-16-2008, 07:13 PM   #7
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i do see that...not sure though.
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Old 08-16-2008, 10:41 PM   #8
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i put down 297 whp on a mustang dyno with a vf34 with my 02 wrx with 145000 miles that was on 91 oct
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Old 08-16-2008, 10:54 PM   #9
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^nice who says our cars aren't reliable?
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Old 08-16-2008, 11:21 PM   #10
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reliable??

180k mile bugeye w/16g
287hp-271tq
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Old 08-17-2008, 01:46 AM   #11
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theres something wrong with that tune. either bad knock or a slipping clutch or a nasty boost leak.... possibly even motor damage causing an issue but that dip in the curves isnt cool. get ur car fixed asap.
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Old 08-17-2008, 11:22 AM   #12
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i guess my jesus tune sucks then?
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Old 08-17-2008, 11:28 AM   #13
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Confess your sins and maybe he will save you...

aka, tell him its broke maybe he will fix it?

Quote:
Originally Posted by arrowscooby View Post
i guess my jesus tune sucks then?
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Old 08-17-2008, 12:04 PM   #14
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There is not a damn dip in the graph people, the torque curve is fine, you think you are seeing a dip in the graph but its really just the two lines intersecting each other, they are just both the same color so you cant tell. Look at it closer before you tell this kid his engine is messed up. Jesus people... just wow
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Old 08-17-2008, 12:33 PM   #15
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Quote:
Originally Posted by arrowscooby View Post
i guess my jesus tune sucks then?
I don't think Jon would leave a car with a crappy tune.
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Old 08-17-2008, 12:52 PM   #16
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Quote:
Originally Posted by torkeh View Post
There is not a damn dip in the graph people, the torque curve is fine, you think you are seeing a dip in the graph but its really just the two lines intersecting each other, they are just both the same color so you cant tell. Look at it closer before you tell this kid his engine is messed up. Jesus people... just wow
are you retarded?... look at the torque graph @ 4700. it spikes, drops then raises again. this is either a sign of detonation, slipping clutch or significant boost leak. the tune or car is messed up.
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Old 08-17-2008, 01:35 PM   #17
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there is a dip, i do see it...maybe jon can chime in...the boost curve looks like it drops as well, that's when the torque curve dips...is there a correlation? shouldn't the hp curve be acting funky too? hp curve looks fine though right?

Last edited by arrowscooby; 08-17-2008 at 01:56 PM.
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Old 08-17-2008, 02:52 PM   #18
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Quote:
Originally Posted by arrowscooby View Post
there is a dip, i do see it...maybe jon can chime in...the boost curve looks like it drops as well, that's when the torque curve dips...is there a correlation? shouldn't the hp curve be acting funky too? hp curve looks fine though right?
no it doesn't look fine - you can see the HP curve flatlines for a while.

Remember that even if torque dips, HP is not going to drop since it's dependent on rpms.


The boost curve isn't really dropping - you're running an internal wastegate right? so your boost is just overshooting the target while spooling up and settling down.

Probably some timing got pulled in that rpm range - you definitely should get it check out ASAP because that's exactly what a dyno graph looks like when there's detonation but then, i'm not a tuner so i dunno. Maybe there is some explanation
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Old 08-17-2008, 03:04 PM   #19
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jon help!
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Old 08-17-2008, 03:07 PM   #20
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Quote:
Originally Posted by renosubby View Post
Whats going on with the dip at 5300ish Rpms and then shoots back up? Knock?

Normally that dip is associated with the TGV's position. I think that is when they decide to open up. Because when they open, you have to build that extra boost that the semi-closed TGV's were helping and therefore, your TQ drops off because your bosot drops. Not for sure though.
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Old 08-17-2008, 04:59 PM   #21
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jon wouldnt let a car leave like that it looks like the scaling of that weird dyno did it

the afr and boost maps look perfect.

bunch of armchair t0oners scaring a newb into thinking his car is blowing up, got to love PPB.
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Old 08-17-2008, 05:27 PM   #22
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you can have perfect afr and boost but garbage timing causing knock...bren, look at that dyno plot. something is messed up...
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Old 08-17-2008, 05:44 PM   #23
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more inputs please...i'm getting worried here. jon told me after the tune that there was no knock, especially since it was a semi-conservative tune on 19psi. i wanted more but jon wanted to be on the safe side. for people trying to figure out the lines, you can distinuguish between the hp/tq curves via the black squares on the torque curve. it's somewhat confusing since both lines are the same color...
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Old 08-17-2008, 05:50 PM   #24
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Quote:
Originally Posted by Auto0utcast View Post
you can have perfect afr and boost but garbage timing causing knock...bren, look at that dyno plot. something is messed up...
all dynos are not equal, if that dyno has horrible loading features and that is how it displays however JON would not let a car leave if it was like that, nor have i ever ever ever seen any of his graphs like that - the one thing in not common thing in this equation is the weird dyno he's using. Use your head.

example: look at a agile auto torque curve graph versus a dynojet p&l graph,
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Old 08-17-2008, 05:51 PM   #25
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Quote:
Originally Posted by arrowscooby View Post
more inputs please...i'm getting worried here. jon told me after the tune that there was no knock, especially since it was a semi-conservative tune on 19psi. i wanted more but jon wanted to be on the safe side. for people trying to figure out the lines, you can distinuguish between the hp/tq curves via the black squares on the torque curve. it's somewhat confusing since both lines are the same color...
your car is fine, nasioc is as usual
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