Log Manifold (SFR/Esmeril) Vs Tubular (turboblown) Turbo Manifolds, and setups
03-10-2011, 12:25 AM
#81
Boostin'
Got a scan of the boost curve?
I know its not the exact turbo, however it is a lot closer comparison as a 1.06 GT35R is very close to a .84 turbine P trim housing( even so this one is a .70 according to the build thread). Compressor wheels are also very similar. I have attached a photo of the difference between the turbine wheels.
Results again are tipping in favor of the tubular manifold design, boost comes on sooner, and higher rpms carry more power, and this is still at lower boost pressure.
Not down playing your results, just staying on topic.
I know its not the exact turbo, however it is a lot closer comparison as a 1.06 GT35R is very close to a .84 turbine P trim housing( even so this one is a .70 according to the build thread). Compressor wheels are also very similar. I have attached a photo of the difference between the turbine wheels.
Results again are tipping in favor of the tubular manifold design, boost comes on sooner, and higher rpms carry more power, and this is still at lower boost pressure.
Not down playing your results, just staying on topic.
03-10-2011, 12:48 AM
#85
Boostin'
Go enjoy your car before you even think of doing more mods. Stay safe out there!
03-10-2011, 12:54 AM
#87
Boostin'
03-10-2011, 01:51 AM
#90
Uh, whut? CFM is almost as useless as PSI.
Normal 6250 opening point.
.70 A/R? I presume that is for the compressor. What is the A/R of the turbine?
About 11 PSI.
Wanted has one of those "Gizmo" boost controllers that I knew absolutely nothing about. Tony from UMS and I spent a good 20 minutes trying to decipher the instructions. In all, it seems like a good controller, but it wasn't intuitive at all.
We basically got it to hit 12 PSI as a sort of "spike" (you can see it in the dyno plot) which immediately settled down to 11.5 PSI, trailing down to about 10.8 PSI at the redline.
Normal 6250 opening point.
.70 A/R? I presume that is for the compressor. What is the A/R of the turbine?
About 11 PSI.
Wanted has one of those "Gizmo" boost controllers that I knew absolutely nothing about. Tony from UMS and I spent a good 20 minutes trying to decipher the instructions. In all, it seems like a good controller, but it wasn't intuitive at all.
We basically got it to hit 12 PSI as a sort of "spike" (you can see it in the dyno plot) which immediately settled down to 11.5 PSI, trailing down to about 10.8 PSI at the redline.
03-10-2011, 02:00 AM
#91
I'm afraid that is all the info I have reguarding the Turbo, but I seem to remember .96 in there somewhere...
I thought I had left the instructions sitting on the seat just incase, if I forgot, my apologies. Also let me know what I owe you and how you would like to be paid. Thanks for all the work Jeff!!
I thought I had left the instructions sitting on the seat just incase, if I forgot, my apologies. Also let me know what I owe you and how you would like to be paid. Thanks for all the work Jeff!!
03-10-2011, 10:20 AM
#95
Mostly true, I suppose the best picture is the MAF sensor readings? g/sec?
I am pretty sure turblowns turbo has a higher g/sec then SFR's kit, can you confirm?
an engine is moving air, cfm, the PSI is how much resistance the engine is providing, so I always thought that if one engine can make x power at 10psi with a curtain turbo while the same engine makes more power with the same 10psi but a different turbo, what is the change? I thought CFM is what makes the change, an I wrong?
I am pretty sure turblowns turbo has a higher g/sec then SFR's kit, can you confirm?
an engine is moving air, cfm, the PSI is how much resistance the engine is providing, so I always thought that if one engine can make x power at 10psi with a curtain turbo while the same engine makes more power with the same 10psi but a different turbo, what is the change? I thought CFM is what makes the change, an I wrong?
03-10-2011, 10:26 AM
#96
an engine is moving air, cfm, the PSI is how much resistance the engine is providing, so I always thought that if one engine can make x power at 10psi with a curtain turbo while the same engine makes more power with the same 10psi but a different turbo, what is the change? I thought CFM is what makes the change, an I wrong?
03-10-2011, 11:45 AM
#99