Turbo NC 419 Hp 430lb/ft
09-08-2013, 01:04 AM
#1
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Turbo NC 419 Hp 430lb/ft
I hope the time will soon come where we can have a Real NC Turbo thread in this forum for those who like to be well informed.
This has been an excellent place to learn from those who have done it.
Just wanted to share a full car build we did for a customers car who shipped it to us all the way from California to us in Florida.
We replaced the engine with one of our own, added a custom T3 turbo. Fatcat suspension and we of course tune the thing.
Hp is limited by the turbine housing, but it was a compromise, this turbo spools at 1500 RPM, I most admit it came out very nice.
here is a link to the other place
dynodone2_zpsd4870ade.jpg Photo by Javier_Jay_Pabon | Photobucket
This has been an excellent place to learn from those who have done it.
Just wanted to share a full car build we did for a customers car who shipped it to us all the way from California to us in Florida.
We replaced the engine with one of our own, added a custom T3 turbo. Fatcat suspension and we of course tune the thing.
Hp is limited by the turbine housing, but it was a compromise, this turbo spools at 1500 RPM, I most admit it came out very nice.
here is a link to the other place
dynodone2_zpsd4870ade.jpg Photo by Javier_Jay_Pabon | Photobucket
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09-08-2013, 11:04 PM
#8
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I dont know for sure, but Id say it is a well thought out guess. The only way Id be wrong is if they were using some weird scaling where the grid lines dont correspond to nice even increments. This would also mean that they were reving the engine much higher than I would expect (like 9k+ rpm).
It is pretty reasonable to assume that the scaling is correct, with their solid line sitting at 5500 rpm.
As for it not spooling as well as you would expect, part of that can certainly be contributed to starting the pull at 3500 rpm. Starting at a lower rpm would probably show gains below 5000 rpm.
EDIT:
Another nail in the coffin for the rpm scaling.
Here is a dyno from their shop:
Notice the RPM scaling used, and notice their habit of starting dyno pulls at stupid high RPM just as I suspected.
Amateur hour is over STP. This is ******* MiataTurbo.net, we're not like honda kids and domestic **** who dont know **** about tuning. If you want to impress us we want objective, accurate and precise, scientific data.
Last edited by Full_Tilt_Boogie; 09-08-2013 at 11:22 PM.
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09-08-2013, 11:43 PM
#9
I love mtHP/TQ crossover happens at 5252 RPM, which falls directly in the middle of the 2 grid lines. This is a good indicator that the grid is in 500 rpm increments. It also would make sense that they would be reving it to roughly 7500 rpm.
I dont know for sure, but Id say it is a well thought out guess. The only way Id be wrong is if they were using some weird scaling where the grid lines dont correspond to nice even increments. This would also mean that they were reving the engine much higher than I would expect (like 9k+ rpm).
It is pretty reasonable to assume that the scaling is correct, with their solid line sitting at 5500 rpm.
As for it not spooling as well as you would expect, part of that can certainly be contributed to starting the pull at 3500 rpm. Starting at a lower rpm would probably show gains below 5000 rpm.
EDIT:
Another nail in the coffin for the rpm scaling.
Here is a dyno from their shop:
Notice the RPM scaling used, and notice their habit of starting dyno pulls at stupid high RPM just as I suspected.
Amateur hour is over STP. This is ******* MiataTurbo.net, we're not like honda kids and domestic **** who dont know **** about tuning. If you want to impress us we want objective, accurate and precise, scientific data.
I dont know for sure, but Id say it is a well thought out guess. The only way Id be wrong is if they were using some weird scaling where the grid lines dont correspond to nice even increments. This would also mean that they were reving the engine much higher than I would expect (like 9k+ rpm).
It is pretty reasonable to assume that the scaling is correct, with their solid line sitting at 5500 rpm.
As for it not spooling as well as you would expect, part of that can certainly be contributed to starting the pull at 3500 rpm. Starting at a lower rpm would probably show gains below 5000 rpm.
EDIT:
Another nail in the coffin for the rpm scaling.
Here is a dyno from their shop:
Notice the RPM scaling used, and notice their habit of starting dyno pulls at stupid high RPM just as I suspected.
Amateur hour is over STP. This is ******* MiataTurbo.net, we're not like honda kids and domestic **** who dont know **** about tuning. If you want to impress us we want objective, accurate and precise, scientific data.
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1
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09-08-2013, 11:48 PM
#10
lol thats the shittiest graph ever. Almost as bad as the dyno guy i went to putting the horizontal rpm graph against the vertical rpm graph.
Half the graph is logo, the bottom half is run names. then the dyno graphs are devided into half of that. Uck. At least mine was vertical.
Half the graph is logo, the bottom half is run names. then the dyno graphs are devided into half of that. Uck. At least mine was vertical.
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09-09-2013, 11:23 AM
#18
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Hp is limited by the turbine housing, but it was a compromise, this turbo spools at 1500 RPM, I most admit it came out very nice.
that dyno suggests his power was limited by tuning-done-wrong, not the turbine. and
at the 1500RPM spool remark...sure it might make .01psi at 1500RPM, but it has a boost threshold of 5000RPM; stop trying to kid yourself, or us.
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