While I'm way pleased with the 60 series wheel upgrade on my ATS turbo; I'm left wanting more. The 2k+ rpm spoolup and boost levels IMO are more than sufficient, however I want boost below 2k, at my altitudes and driving thru the canyons it's a major plus.
Anwho, this isn't a bench racing thread, I'm fully prepared to do this over the holidays when I have the time to take the truck off the road. For simplicity sakes I believe I'll move my batteries to the bed mounted tool box, which will leave the passenger side with a nice open spot for two shiny turbos and the driver side a big fat air/water intercooler. A little plumbing work will be necessarily to feed the chargers hot gases and then expel them, but I don't think it will be too bad. The thought of not having to mess with turbos, air boxes, and other junk on the top of the motor is VERY appealing
My question is turbo selection. I'm a little partial to Holset turbos, mainly because they are very interchangeable and pretty inexpensive. I can get my hands on a HY35 pretty easily and think it would make a nice small turbo and get me that low end spool I really want. For the big charger I'm wondering about a hx50 which I can also get fairly reasonably priced. For the fuel I am pushing it almost seems to big, I keep thinking about an hx40 for my bigger turbo. The 40 really only moves about the same CFMs as our stock turbos, but it appears to be way more efficient in the sub 25psi range.
In summary, the goal is more low end boost, and good towing twins. I'm not interested in pushing tons of boost at high RPMs or a supercharger/turbo combo. I'm interested in efficiency in the realistic power band of this motor. I don't intend to lower my compression, studs I will go back in for. So I'm guessing I need to keep my boost #'s below mid 20's to be conservative.
Thoughts? I'd be most appreciative to hear from those with turbo matching experience. I feel a little green when it comes to picking the right maps for this application. PLEASE, lets not make this another bench racing thread folks. If you have some real world experience you can share I really want to hear it, if your experience involves what you read on the internet or what "your buddy says" please be kind and refrain. (sorry to have to be so blunt there guys)
Anwho, this isn't a bench racing thread, I'm fully prepared to do this over the holidays when I have the time to take the truck off the road. For simplicity sakes I believe I'll move my batteries to the bed mounted tool box, which will leave the passenger side with a nice open spot for two shiny turbos and the driver side a big fat air/water intercooler. A little plumbing work will be necessarily to feed the chargers hot gases and then expel them, but I don't think it will be too bad. The thought of not having to mess with turbos, air boxes, and other junk on the top of the motor is VERY appealing
My question is turbo selection. I'm a little partial to Holset turbos, mainly because they are very interchangeable and pretty inexpensive. I can get my hands on a HY35 pretty easily and think it would make a nice small turbo and get me that low end spool I really want. For the big charger I'm wondering about a hx50 which I can also get fairly reasonably priced. For the fuel I am pushing it almost seems to big, I keep thinking about an hx40 for my bigger turbo. The 40 really only moves about the same CFMs as our stock turbos, but it appears to be way more efficient in the sub 25psi range.
In summary, the goal is more low end boost, and good towing twins. I'm not interested in pushing tons of boost at high RPMs or a supercharger/turbo combo. I'm interested in efficiency in the realistic power band of this motor. I don't intend to lower my compression, studs I will go back in for. So I'm guessing I need to keep my boost #'s below mid 20's to be conservative.
Thoughts? I'd be most appreciative to hear from those with turbo matching experience. I feel a little green when it comes to picking the right maps for this application. PLEASE, lets not make this another bench racing thread folks. If you have some real world experience you can share I really want to hear it, if your experience involves what you read on the internet or what "your buddy says" please be kind and refrain. (sorry to have to be so blunt there guys)