Ysi maxed out?
Le Mans Master
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From: Montreal
St. Jude Donor '13
Originally Posted by sevinn
If he's using hpt, and a version greater than 3.0 he has the logs in %userprofile%\Documents\HP Tuners\VCM Scanner\Logs assuming default install location. Every time you stop a log it autosaves.
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None were saved. I looked. Don't really know what to do but start throw parts at it. Gonna try springs and lifters and go from there.
Le Mans Master
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St. Jude Donor '13
Originally Posted by jacked cobra
None were saved. I looked. Don't really know what to do but start throw parts at it. Gonna try springs and lifters and go from there.
But good luck. Sounds like you have a plan.
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From: Baton Rouge LA
St. Jude Donor '14, '16
Sorry to hear that, but I'd definitely have him double check because that's not the default location that hpt sets up to save logs. Good luck, just wanted to offer a suggestion.
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Safety Car
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From: Baton Rouge LA
St. Jude Donor '14, '16
Map definitely doesn't climb consistently over 6k or so then spikes once you hit the limiter.
Check the map value in the first screenshot compared to the second. Looks like it could be belt slip to me.
On a side note, it looks like desoot mode is still enabled by that little lean spike check Engine>fuel>General and disable enrich desoot mode.
Check the map value in the first screenshot compared to the second. Looks like it could be belt slip to me.
On a side note, it looks like desoot mode is still enabled by that little lean spike check Engine>fuel>General and disable enrich desoot mode.
Last edited by sevinn; Dec 17, 2017 at 11:19 PM.
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I see what u are saying. What would cause that. Could valve float do that? Let me see one of your guys logs to compare boost
Le Mans Master
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St. Jude Donor '13
Originally Posted by jacked cobra
I see what u are saying. What would cause that. Could valve float do that? Let me see one of your guys logs to compare boost
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Map definitely doesn't climb consistently over 6k or so then spikes once you hit the limiter.
Check the map value in the first screenshot compared to the second. Looks like it could be belt slip to me.
On a side note, it looks like desoot mode is still enabled by that little lean spike check Engine>fuel>General and disable enrich desoot mode.
Check the map value in the first screenshot compared to the second. Looks like it could be belt slip to me.
On a side note, it looks like desoot mode is still enabled by that little lean spike check Engine>fuel>General and disable enrich desoot mode.
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Thanks. Looking for any ideas. Car was running great on ls7. Built this lsx and now this. Changes from ls7 are lsx block prc 285 6 bolt head 1207x PAC springs 243 258 114lsa cam 10 rib belt instead of 8. 2.7in upper instead of 3in and put the meth back on to knock down iat. Car is on E85 with Bosch 2200 injectors
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After getting your guys input making me think more that it's something in the valve train or cam. At 21psi it wouldn't drop off like that. So blower and any restriction from blower to intake I think are good. Exhaust is 1 7/8 kooks headers, no cats 3in all the way to corsa extreme mufflers. Don't see that being a problem. Only things left are cam, springs,lifters or push rod length maybe.
Last edited by jacked cobra; Dec 18, 2017 at 12:18 AM.
Le Mans Master
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St. Jude Donor '13
It is possible that the blower is done. Those are pretty big heads and cam. The combo has to all work together and I don't know enough to say if yours does. Personally I would speak to someone who would know before just throwing money at it. There are many guys who would.
One other thought is check that the BOV is operating properly and fully closing.
One other thought is check that the BOV is operating properly and fully closing.
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St. Jude Donor '14, '16
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That kinda what I was thinking. 920 mustang is like 1050ish dyno jet. But now what pulley up so it will pull to red line. And then again y would it just dip like that. I could if it ran out just staying steady. Y go from 920 to 800 by 7200. Wouldn't it if anything stay flat?
Team Owner
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Throw it on a dynojet to confirm. And logs do look like a boost/belt issue.
I don't like Ysi on big motors like big cams. Seems like every huge cam big cam YSI setup drops off, while the small cam ones keep pulling. Need to keep the boost in the cylinders when you are trying to max out a combo. My car sees a nice constant climb of boost all the way to 255kpa where it pegs the map sensor out from 6400+.
I don't like Ysi on big motors like big cams. Seems like every huge cam big cam YSI setup drops off, while the small cam ones keep pulling. Need to keep the boost in the cylinders when you are trying to max out a combo. My car sees a nice constant climb of boost all the way to 255kpa where it pegs the map sensor out from 6400+.