Water cooled turbo options
07-27-2018, 04:43 AM
#22
I'm sure it'll be awesome. I'm looking forward to it!
07-27-2018, 05:34 PM
#23
07-28-2018, 03:13 AM
#24
07-28-2018, 07:46 AM
#25
Disclaimer: this is only one view so I might be looking at this wrong/not seeing the full picture.
Also, are you making engineering drawings and then sending them out to a fabrication shop?
07-28-2018, 09:10 AM
#26
I’m curious as well. Wouldn’t you want some length to the runnners? Not anything crazy but something to at least get equal length runners. This looks great from a packaging standpoint and making sure as much heat as possible makes it to the turbo but am curious as to what this does for exhaust flow out of the cylinder head.
Disclaimer: this is only one view so I might be looking at this wrong/not seeing the full picture.
Also, are you making engineering drawings and then sending them out to a fabrication shop?
Design brief: for use in a primarily street car. So, response and reliability over max power. Packaging which minimizes relocation of components; I'm designing it around the Hasport engine mount. It will keep the stock black heat shield which protects the A/C line, battery, electrical box. The only thing that needs to be relocated is the oil filter to clear space for the compressor intake tube.
So why not the PTuning? It doesn't quite meet my packaging requirements and it has boost control/creep issues. Why not the SOS TSMax? It doesn't have a good top-end because I feel their manifold design is too restrictive. And I'll be using the G25-660, 0.72 A/R. So.... that's all I want to say at this point
07-28-2018, 02:52 PM
#27
I purposely did not want to show too much. Still tweaking some things with flow paths and runner geometries and such.
Design brief: for use in a primarily street car. So, response and reliability over max power. Packaging which minimizes relocation of components; I'm designing it around the Hasport engine mount. It will keep the stock black heat shield which protects the A/C line, battery, electrical box. The only thing that needs to be relocated is the oil filter to clear space for the compressor intake tube.
So why not the PTuning? It doesn't quite meet my packaging requirements and it has boost control/creep issues. Why not the SOS TSMax? It doesn't have a good top-end because I feel their manifold design is too restrictive. And I'll be using the G25-660, 0.72 A/R. So.... that's all I want to say at this point
Design brief: for use in a primarily street car. So, response and reliability over max power. Packaging which minimizes relocation of components; I'm designing it around the Hasport engine mount. It will keep the stock black heat shield which protects the A/C line, battery, electrical box. The only thing that needs to be relocated is the oil filter to clear space for the compressor intake tube.
So why not the PTuning? It doesn't quite meet my packaging requirements and it has boost control/creep issues. Why not the SOS TSMax? It doesn't have a good top-end because I feel their manifold design is too restrictive. And I'll be using the G25-660, 0.72 A/R. So.... that's all I want to say at this point
07-28-2018, 08:56 PM
#28
I purposely did not want to show too much. Still tweaking some things with flow paths and runner geometries and such.
Design brief: for use in a primarily street car. So, response and reliability over max power. Packaging which minimizes relocation of components; I'm designing it around the Hasport engine mount. It will keep the stock black heat shield which protects the A/C line, battery, electrical box. The only thing that needs to be relocated is the oil filter to clear space for the compressor intake tube.
So why not the PTuning? It doesn't quite meet my packaging requirements and it has boost control/creep issues. Why not the SOS TSMax? It doesn't have a good top-end because I feel their manifold design is too restrictive. And I'll be using the G25-660, 0.72 A/R. So.... that's all I want to say at this point
Design brief: for use in a primarily street car. So, response and reliability over max power. Packaging which minimizes relocation of components; I'm designing it around the Hasport engine mount. It will keep the stock black heat shield which protects the A/C line, battery, electrical box. The only thing that needs to be relocated is the oil filter to clear space for the compressor intake tube.
So why not the PTuning? It doesn't quite meet my packaging requirements and it has boost control/creep issues. Why not the SOS TSMax? It doesn't have a good top-end because I feel their manifold design is too restrictive. And I'll be using the G25-660, 0.72 A/R. So.... that's all I want to say at this point
I’m curious as well. Wouldn’t you want some length to the runnners? Not anything crazy but something to at least get equal length runners. This looks great from a packaging standpoint and making sure as much heat as possible makes it to the turbo but am curious as to what this does for exhaust flow out of the cylinder head.
Disclaimer: this is only one view so I might be looking at this wrong/not seeing the full picture.
Also, are you making engineering drawings and then sending them out to a fabrication shop?
You may find Borg Warner's Matchbot useful: Performance Turbos | BorgWarner Turbo Systems
07-28-2018, 09:29 PM
#29
Cali 91 oct only. New rods and 9.5 CR pistons. Targeting 500hp crank, so ~15psi of boost. Planning to use a Magnaflow 3" cat. Because of my boundary conditions of only using 91 oct and increased exhaust restriction due to the cat, I have to drop the CR from stock to make any serious power.
07-28-2018, 09:58 PM
#30
Cali 91 oct only. New rods and 9.5 CR pistons. Targeting 500hp crank, so ~15psi of boost. Planning to use a Magnaflow 3" cat. Because of my boundary conditions of only using 91 oct and increased exhaust restriction due to the cat, I have to drop the CR from stock to make any serious power.
What engine speed do you anticipate? I was finding when trying to spec a configuration for that power level from 3L it was hard to find a turbo to produce the flow with a low pressure ratio (12-14psig MAP). It looks like you plan a slightly higher pressure ratio. Have you mapped it to compressor maps and looked at the turbine expansion ratio? BW has both in Matchbot. It sobering when looking for high HP at low boost levels.
Sidebar: if replacing pistons are you considering abradable coatings for the skirt or gapless top ring to reduce blowby? Is 125hp/cylinder within the range of the OEM rods or does that risk bending rods from excessive ignition advance at lower engine speeds?
