Kinetix SSV Dyno Results - Vortech
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Some of these richness people are seeing, can be a result of decreased air velocity, particularly under vaccum. The slow turbulent air can have difficulty making the turn into the runners. That is why the OEM plate has precisely engineered air horns, to shape and curve the air into the intake runners.
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Originally Posted by mcduck
Confused on this... are you saying Jeremy's boost was 11psi before or after the intake swap?
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Andy - after, however from reading one of the posts above you can not go by the zietronix unless you do your own math. I have to question why I have a guage in my car that does not read correctly. I think it has always been 2 psi to high.
I know the zietronix was reading around 9-9.5 before intake and after it read 11 when I shifted at redline.
So with the fuzzy math it would be around 7-7.5 and after it would be 9. All of this without tuning and just bolting on the intake.
I know the zietronix was reading around 9-9.5 before intake and after it read 11 when I shifted at redline.
So with the fuzzy math it would be around 7-7.5 and after it would be 9. All of this without tuning and just bolting on the intake.
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Originally Posted by Dr Bonz
lsdunique: Do the pictures I posted above look normal to you? I cannot feel anything but there are "swirlmarks" on the bottom of the IM.
Installed my new&improved version tonight... idle problems have been solved, the thing runs great now -- idles at 750rpm, no problems when i dump the revs (even from 6k)...
again, the ButtDyno™ says that i'm feeling slight gains all the way through the band (bigger gains at 3-4k, and much more at 6k+), but i won't know for sure until Saturday (dyno day).
i'd like to thank Andy & Tony at Performance Nissan for getting that stud, bolt, and pair of gaskets to me overnight. Thanks to Craft Repair of Hampton, VA for their awesome machine work. and to Sharif for his moral support, lol
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Originally Posted by LeMans350z
Andy - after, however from reading one of the posts above you can not go by the zietronix unless you do your own math. I have to question why I have a guage in my car that does not read correctly. I think it has always been 2 psi to high.
I know the zietronix was reading around 9-9.5 before intake and after it read 11 when I shifted at redline.
So with the fuzzy math it would be around 7-7.5 and after it would be 9. All of this without tuning and just bolting on the intake.
I know the zietronix was reading around 9-9.5 before intake and after it read 11 when I shifted at redline.
So with the fuzzy math it would be around 7-7.5 and after it would be 9. All of this without tuning and just bolting on the intake.
For me, I am always showing a negative value (-5.0 to -6.0) with key on without vehicle starting. Thus multiply by .48 and add that value to what is displayed on the LCD of Lap Top datalogging display. At WOT I will display 3.8 to 4.3 pounds of boost. I then add 2.4 or 2.9 depending on startup value.
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NOTE - COPIED FROM ANOTHER THREAD:
When I first posted my dynos I asked about the 9s wanting to know if that was normal and could we have gone lower in the R4. Check thread...
I wish that someone would have told me that my 9s are OK and that he can take it even lower. Ed told me has never had to go into the 9s before much less the 7s with the R4. Maybe their are still gains to be made. It does sound like several hours on the dyno. The car goes back on Wednesday while I work.
AlanL do you have time to baby sit the car at the shop? I know you have an interest in the new intake.
Jeremy
Originally Posted by booger
This does not however explain the other recent dyno from lemans350z which has the A/F going off the chart rich, and then even when R4 adjustments were maxed out, they couldnt get it back into the previous A/F range
After a PM with Lemans350Z . He told me [ I believe ] his numbers in the R4 fuel map , were 9's . This is far from maxing out what you can pull fuel out . Mine are in the 7's after 6000rpm . I dont know if his tuner didnt feel comfortable with the R4 program or what . But he for sure can lean it out enough to get it back to where it was.
After a PM with Lemans350Z . He told me [ I believe ] his numbers in the R4 fuel map , were 9's . This is far from maxing out what you can pull fuel out . Mine are in the 7's after 6000rpm . I dont know if his tuner didnt feel comfortable with the R4 program or what . But he for sure can lean it out enough to get it back to where it was.
I wish that someone would have told me that my 9s are OK and that he can take it even lower. Ed told me has never had to go into the 9s before much less the 7s with the R4. Maybe their are still gains to be made. It does sound like several hours on the dyno. The car goes back on Wednesday while I work.
AlanL do you have time to baby sit the car at the shop? I know you have an interest in the new intake.
Jeremy
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Well, today dynoed the car with the same settings I started with last week. The car is not rich as hell anymore however the power is still down. We are still on the dyno and hopefully we will get some better results in the next couple of hours.
Booger check your PM.
Jeremy
Booger check your PM.
Jeremy
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Originally Posted by LeMans350z
Well, today dynoed the car with the same settings I started with last week. The car is not rich as hell anymore however the power is still down. We are still on the dyno and hopefully we will get some better results in the next couple of hours.
Booger check your PM.
Jeremy
Booger check your PM.
Jeremy
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Originally Posted by booger
Would think some thing is wrong with the O2 sensor on the dyno ?
I can send it to you if you want to take a look.
Jeremy
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Booger - thanks for taking a look.
The intake is not the problem (at least not yet). The tuning is. After reviewing the files the aux fuel pump is not turning on. So once we get the aux fuel pump on we can start playing with the values again. Should go rich on the top end again like my previous visit and then we should lean the A/F out by entering lower values closer to 7 and 8 in the R4.
I need written instructions for my dyno guy to follow on when this issue with the aux fuel pump happens and what the process is for fixing it.
Booger had posted this on another thread:
https://my350z.com/forum/forced-induction/122573-vortech-help-questions-aux-fuel-pump-not-kicking-in.html
"once you open the R4 , Click on Options....then output settings.....output B....should read ......over rpm and pressure......over rpm...should read 3000......over pressure...should read....0 to 2 psi ."
Are these values correct (I can't view the file you sent me)?
Click Options | Output Settings | Output B | Over RPM and Pressure
Update settings as follows:
Over RPM = 3000
Over Pressure = 0 to 2 psi
When does this issue with the aux fuel pump happen?
How do you confirm the settings have taken?
Do you have to check these settings every time before and after making changes?
I have resceduled another session next Wednesday afternoon and my wife will have to take the car. If you review the thread above I had told the shop about this issue the last time they tuning my car in May. I called the shop and told them what Booger said about the aux fuel pump and they said it sounded like their mistake and they would talk with the tuner when he gets back from his trip.
Thanks!!!
Jeremy
The intake is not the problem (at least not yet). The tuning is. After reviewing the files the aux fuel pump is not turning on. So once we get the aux fuel pump on we can start playing with the values again. Should go rich on the top end again like my previous visit and then we should lean the A/F out by entering lower values closer to 7 and 8 in the R4.
I need written instructions for my dyno guy to follow on when this issue with the aux fuel pump happens and what the process is for fixing it.
Booger had posted this on another thread:
https://my350z.com/forum/forced-induction/122573-vortech-help-questions-aux-fuel-pump-not-kicking-in.html
"once you open the R4 , Click on Options....then output settings.....output B....should read ......over rpm and pressure......over rpm...should read 3000......over pressure...should read....0 to 2 psi ."
Are these values correct (I can't view the file you sent me)?
Click Options | Output Settings | Output B | Over RPM and Pressure
Update settings as follows:
Over RPM = 3000
Over Pressure = 0 to 2 psi
When does this issue with the aux fuel pump happen?
How do you confirm the settings have taken?
Do you have to check these settings every time before and after making changes?
I have resceduled another session next Wednesday afternoon and my wife will have to take the car. If you review the thread above I had told the shop about this issue the last time they tuning my car in May. I called the shop and told them what Booger said about the aux fuel pump and they said it sounded like their mistake and they would talk with the tuner when he gets back from his trip.
Thanks!!!
Jeremy
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