My 928 Motorsport Vortech impeller dyno
06-11-2010, 10:54 AM
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My 928 Motorsport Vortech impeller dyno
Well as promised I went to HP Logic today for my tune with my new impeller. This was done on a Mustang Dyno. I think Dynojet reads around 20% higher give or take. My previous dyno was done during a cooler time of year. Today was HOT to say the least. I must say the car pulls alot more than before.
List of mods are
Vortech SC with V+ impeller 2.87 pulley
RC 550cc
Walbro pump
Megan headers
Test pipes
Borla TD with X pipe muffler
Motordyne spacer
ACT clutch
Fidanza Flywheel
Mustand Dyno numbers before impeller 332whp 273Tq. After impeller 375whp 319Tq
Add 20% to that for dynojet and it would be 450whp 384Tq. I will be getting a dynojet run in the near future to confirm that.
I would like to thank Carl and the 928 Motorsport crew for the great customer service and kick *** impeller.
Also Thanks to Jack Cecil at HP Logic for the great tune.
List of mods are
Vortech SC with V+ impeller 2.87 pulley
RC 550cc
Walbro pump
Megan headers
Test pipes
Borla TD with X pipe muffler
Motordyne spacer
ACT clutch
Fidanza Flywheel
Mustand Dyno numbers before impeller 332whp 273Tq. After impeller 375whp 319Tq
Add 20% to that for dynojet and it would be 450whp 384Tq. I will be getting a dynojet run in the near future to confirm that.
I would like to thank Carl and the 928 Motorsport crew for the great customer service and kick *** impeller.
Also Thanks to Jack Cecil at HP Logic for the great tune.
Last edited by 05Z33; 06-11-2010 at 11:14 AM.
06-11-2010, 11:28 AM
#4
good gains between the swap esp if you mean that HPL did not adjust the tune in any fashion. If they played with the tune, actual gains get alot more cloudy.
your baseline is crazy low though, like 3.12 pulley #'s, even for a mustang.
It would be great to see that on a DJ!
your baseline is crazy low though, like 3.12 pulley #'s, even for a mustang.
It would be great to see that on a DJ!
Last edited by str8dum1; 06-11-2010 at 11:31 AM.
06-11-2010, 11:39 AM
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good gains between the swap esp if you mean that HPL did not adjust the tune in any fashion. If they played with the tune, actual gains get alot more cloudy.
your baseline is crazy low though, like 3.12 pulley #'s, even for a mustang.
It would be great to see that on a DJ!
your baseline is crazy low though, like 3.12 pulley #'s, even for a mustang.
It would be great to see that on a DJ!
The last time I was on a DJ I made 400whp on a 3.12 tune with a 2.87 pulley.
Last edited by 05Z33; 06-11-2010 at 11:42 AM.
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06-12-2010, 11:16 AM
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Utec.
I'm just basing that number on what I've heard and my personal experience. I made 400whp on a DJ and one week later made 330 on a Mustang dyno. I really don't care about the overall number though. I care more about the gains made on the impeller change.
I'm just basing that number on what I've heard and my personal experience. I made 400whp on a DJ and one week later made 330 on a Mustang dyno. I really don't care about the overall number though. I care more about the gains made on the impeller change.
06-12-2010, 09:24 PM
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How can you not be maxing out the fuel injectors when I have pretty much the same size with less power and they are at 100% DC? You don't even have the vortech FMU?
06-12-2010, 09:40 PM
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some injectors flow more than others even if they are the same model. also, every engine is different. some less efficient than others. it also depends on atomospheric conditions (air density, humidity, etc). That'll play a huge roll. Lastly, not all duty cycle is calculated properly. I've had mine tell me i was at 110% duty cycle before. How is that possible? incorrect math on the computers part. You'll know if they're maxed, you go super lean and no amount of adjustments change that. If you can bump up yoru fuel in the tune and the car will go more rich then the injectors aren't truthly maxed.
06-12-2010, 09:54 PM
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talk to charles from CJM. great to work with and his stage 0 kit is like 400$ now. Super cheap and high quality stuff well worth the cash.
some injectors flow more than others even if they are the same model. also, every engine is different. some less efficient than others. it also depends on atomospheric conditions (air density, humidity, etc). That'll play a huge roll. Lastly, not all duty cycle is calculated properly. I've had mine tell me i was at 110% duty cycle before. How is that possible? incorrect math on the computers part. You'll know if they're maxed, you go super lean and no amount of adjustments change that. If you can bump up yoru fuel in the tune and the car will go more rich then the injectors aren't truthly maxed.
some injectors flow more than others even if they are the same model. also, every engine is different. some less efficient than others. it also depends on atomospheric conditions (air density, humidity, etc). That'll play a huge roll. Lastly, not all duty cycle is calculated properly. I've had mine tell me i was at 110% duty cycle before. How is that possible? incorrect math on the computers part. You'll know if they're maxed, you go super lean and no amount of adjustments change that. If you can bump up yoru fuel in the tune and the car will go more rich then the injectors aren't truthly maxed.
Anyways...no more off topic. I want one of those impellers...lol.
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